贵州省八校联盟2015届高三第三次联考试题英语试题 Word版含答案.doc
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秘密★考试结束前【考试时间:3月 22日9.00—11:30 】贵州省八校联盟2015届高三第二次联考试卷理科综合命题学校:遵义四中联考学校:贵阳六中清华中学遵义四中凯里一中都匀一中都匀二中安顺一中毕节一中本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,考试时间150分钟,满分300分。
注意事项:1. 答卷前,考生务必在答题卡上相应的位置准确填写自己的姓名、准考证号,并将条形码粘贴在指定位置。
2.选择题选出答案后,用2B铅笔将答题卡上对应题目的答案标号按要求涂黑。
如需改动,用橡皮擦干净后,再选涂其它答案标号。
非选择题用签字笔直接答在答题卡上对应的答题区域内。
可能用到的相对原子质量:H-1 C-12 N-14 O-16 S-32 Cl-35.5 Ca-40 Br-80 Ag-108 Fe-56第Ⅰ卷一.选择题:本题共13题,每小题6分。
在每小题给出的四个选项中,只有一项是符合题目的要求的。
1.下列关于化合物的说法,正确的是A. 有些蛋白质具有信息传递作用,如性腺分泌的性激素B. 水分和无机盐在人体内的平衡有利于保持内环境稳态C. 真核生物的遗传物质都是DNA,部分原核生物遗传物质是RNAD. 糖原是重要的多糖,当人体血糖浓度降低时,可通过肌糖原的分解来直接调节血糖平衡2.下列与细胞分裂相关的叙述,正确的是A. 二倍体生物体细胞有丝分裂过程中,染色体DNA与细胞质DNA平均分配B. 人体细胞减数第一次分裂后期与减数第二次分裂后期细胞中都有两个染色体组C. 蛙的红细胞在分裂时不出现纺锤丝,但有染色体出现D. 生物前后代染色体数目的恒定都是通过有丝分裂实现的3.萨顿依据“基因和染色体的行为存在明显的平行关系”的类比推理,从而提出“基因是由染色体携带着从亲代传递给下一代”的假说,以下哪项不属于他所依据的“平行”关系A. 基因和染色体,在体细胞中都是成对存在,在配子中都只有成对中的一个B. 非同源染色体上的非等位基因在形成配子时自由组合;非同源染色体在减数分裂中也有自由组合C. 作为遗传物质的DNA,是由两条反向平行的脱氧核苷酸长链盘绕形成的D. 基因在杂交过程中保持完整性和独立性;染色体在配子形成和受精过程中,也有相对稳定的形态结构4.某双链DNA分子含有200个碱基,一条链上A∶T∶G∶C=1∶2∶3∶4,则该DNA分子A. 含有4个游离的磷酸B. 连续复制两次,需要游离的腺嘌呤脱氧核苷酸210个C. 四种含氮碱基A∶T∶G∶C=3∶3∶7∶7D. 碱基对排列方式共有4100种5.柯萨奇病毒A16型(CA V-16)常引起儿童手足口病和其他并发症。
绝密★启用前【学科网学易大联考】2015年全国第三次模拟大联考【江苏卷】英语试卷本试卷分五部分。
满分120分。
考试时间120分钟。
第Ⅰ卷(共85 分)第一部分:听力(共两节,满分20分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1分,满分5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. How does the woman usually feel when she is asked to sing?A. Excited.B. Relaxed.C. Worried.2. Why does the woman choose to stay in Beijing?A. Because Beijing is her hometown.B. Because she thinks Beijing is exciting.C. Because she has made some new friends there.3. What is the man?A. A singer.B. An employee.C. A student.4. What are the two speakers talking about?A. Their past summer vacation.B. Where to work after graduation.C. Their plans for the summer vacation.5. How does the man react to the woman‟s suggestion?A. He totally ignores it.B. He wants to have a try.C. He‟ll talk with his doctor first.第二节(共15 小题;每小题1分,满分15分)听下面5段对话或独白。
2015年贵州省高考英语试卷及答案要高考了,英语怎么办呢?赶紧和店铺一起做份2015年贵州省高考英语试卷吧,希望对各位有帮助!2015年贵州省高考英语试卷第Ⅰ卷第一部分阅读理解 (共两节,满分40分)第一节 (共15小题,每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。
(A)Several years ago I was diagnosed with cancer. It was the most difficult time I have ever faced. I think it was my sense of humor that allowed me to hold onto my sanity (心智健全). Like many people who have gone through chemotherapy (化疗), I lost all of my hair, being bald as a golf ball. I always had enjoyed wearing hats, so I ordered several special hats with the hair already attached. It was easy and I never had to worry about how my hair looked.I have always been a big golf fan. At one point during my cancer treatments, my husband John and I decided to get away from the cold Minnesota winter and took a trip to Scottsdale, Arizona. There was a Senior PGA Tour even called “The Tradition” being played, and that seemed like just the ticket to lift my spirits.The first day of the tournament brought out a huge crowd. It was a beautiful day, and I was in heaven, I was standing and watching my three favorite golfers in the world approach the tee box (开球区): Jack Nicklaus, Raymond Floyd and Tom Weiskopf.Just as they arrived at the tee, the unimaginable happened.A huge gust of wind came up from out of nowhere and blew myhat and hair right off my head and into the middle of the fairway (球道)! The thousands of people lining the fairway fell into an awkward silence, all eyes on me. Even my three favorite golfers were watching me, as my hair was in their flight path. I was ashamed! Embarrassed as I was, I knew I couldn’t just stand there. Someone had to do something to get things moving again.So I took a deep breath and out into the middle of the fairway.I took hold of my hat and hair, put them back on my head as best I could. Then I turned to the golfers and loudly announced, “Gentlemen, the wind is blowing from left to right.”They said the laughter could be heard all the way to the nineteenth hole.1.What made the author remain mentally healthy even in her illness?A. The Tradition.B. The treatment.C. Her family.D. Her humor.2.The underlined phrase in Para. 3 “in heaven” probably means “___”.A. scaredB. embarrassedC. puzzledD. excited3.Why did the author go into the fairway to pick up her hat and hair?A. To amuse the golfers.B. To give a weather report.C. To have the game restarted.D. To draw others’ attention.4.We can know from the text that the author ___ .A. was fond of wearing hatsB. was an excellent golferC. planed to live in ScottsdaleD. felt worried her hair(B)Food and drink makers are adding caffeine (咖啡因) to a growing number of products. Is it safe for kids to consume these products?You may have heard adu lts say they can’t get going in themorning without a cup of coffee. One reason why they may feel that way is that coffee contains caffeine, a substance (物质) known to improve and increase energy. Caffeine occurs naturally in coffee, tea, and cocoa beans, which are used to make chocolate. But now food makers are adding caffeine to many products, from popcorn and potato chips to water. “It’s possible for all of this caffeine consumption to add up and become dangerous,” says Virginia Stallings, a doctor at the Children’s Hospital of Philadelphia.Studies show that too much caffeine can cause inability to sleep, and a racing heartbeat. What’s more, caffeine is habit-forming. Those who consume it regularly and stop suddenly may experience headaches and feel tired.One of the biggest problems is the large amount of caffeine added to so-called energy drinks, like Red Bull. A 12-ounce can of cola has about 35 milligrams of caffeine. A similar serving of Red Bull contains more than triple (三倍) that amount. Emergency-room visits related to energy-drink consumption were up from 10,068 visits in 2007 to 20,783 in 2011.Teenagers should be aware of caffeine’s effects on health and on the brain. Take, for example, teenagers who consume caffeine to stay awake and study for a test. The effect? Research shows they may remember less of what they just studied.So what can be done to protect young people from the harmful effects of caffeine? Michael Jacobson of the Center for Science in the Public Interest, says the FDA needs to set limits on caffeine, especially in energy drinks. The amount of caffeine should be printed on food labels to warn consumers. Doctors say kids should avoid caffeine. If you need extra energy, try these natural methods instead: eating right, exercising, and gettingplenty of sleep.5.According to the text, it’s dangerous to add more ___ to drinks.A. teaB. chocolateC. yoghurtD. caffeine6.What should the FDA do in protecting the consumers?A. Draw up a project about physical exercise.B. Forbid kids from having water with caffeine.C. Create a set of standards on caffeine products.D. Not allow energy drinks to appear in the market.7.What can we learn from the text?A. Cola has much more caffeine the Red Bull.B. More people are suffering from energy drinks.C. Drinking enough Red Bull can help sleep well.D. Having too much caffeine can improve memory.8.The text is written mainly for those ___ .A. who often have headachesB. who are caffeine-product loversC. who usually feel tiredD. who are food and drink makers(C)As weather cools across the United States, a growing number of Americans visit farms. They harvest apples, enjoy hay wagon rides and walk in the fields. These people are called “agri-tourists”. They improve the economy of rural areas and h elp farmers increase their profits.School children are walking in a corn field maze (迷宫). The corn is cut into tricky passageways that make it difficult to find a way out. The children are from Yorktown Elementary School in Bowie Maryland. They have traveled to Montpelier Farms in Prince George’s County which is also in Maryland. The farm is about 40 kilometers from The White House.Debbie Pierson is the student’s teacher. “We go on these kind of field trips so that the children will have a hands-on experi ence of what it’s like to be on a farm,” Pierson said.Amy Etsy-Smith is visiting the farm with her children. “We come about once a year, lots of fun, yes. The kids enjoy it. This was her favorite part, was choosing the pumpkin.” Amy said.When Mike Dunn opened the family farm to agri-tourists in 2008, he had only a corn maze, a pumpkin field and hay wagon rides. But he says, so many people visited that he soon increased the number of activities. He hopes to make a larger profit from visitors than from farm ing someday. “Our agri-tourism income might be 30 percent of our entire farm income. We’d like to grow it to one day maybe 60 percent,” Dunn said.Americans spent more than $700 million on agri-tourism activities in the United States in 2012. That is an increase of 24 percent from 2007.9.When do Americans prefer to pay a visit to family farms?A. In spring.B. In summer.C. In autumn.D. In winter.10.Mike Dunn added some other activities to his farm because he wanted ___ .A. to earn much more moneyB. to develop agriculture betterC. to solve problems on farmingD. to compete with other farms11.We may infer from the last two paragraphs that ___ .A. field trips can help to promote industrial productionB. agri-tourism is becoming more and more popular in AmericaC. farmers will make more money in farming than farming tripsD. Americans will spend less than $700 million on field tripsin 2016(D)Have you ever felt somebody else’s pain? You’re not alone, with new research showing some people do have a physical reaction to others’ injuries.British researchers used brain-imaging technology (影像工程学) to show that people who say they feel the pain of others have heightened activity in pain- sensing brain regions when they see someone else being hurt. For the study, the researchers exposed 108 college students to images of painful situation, ranging from athletes suffering sports injuries to patients receiving an injection. Nearly a third said that, for at least one image, they not only had an emotional reaction, but also felt pain in the same site as the injury in the image.The researchers found that while viewing the painful images, both people who said they felt pain and those who did not showed activity in the emotional centers of the brain. But those who felt pain showed greater activity in pain-related brain regions compared with the others.“Patients with functional pain experience pain in the absence of an obvious disease or injury to explain their pain. This confirms that at least some people have an actual physical reaction when observing others being injured or expressing pain,” Dr. Stuart Derbyshire of the University of Birmingham, one of the researchers, told reporters.He noted that the people reported feeling pain also tended to say that they avoided horror movies and disturbing images on the news – so as to avoid being in pain.The findings were published in the December issue of the journal Pain.12.The underlined words “a third” probably refer to ___ .A. sportsmen experiencing painB. the 36 students involved in the studyC. patients receiving an injectionD. the 108 students exposed to the images13.The researchers observed the students’ emotional activity in their ___ .A. brain regionsB. eye regionsC. facesD. voices14.If you are allergi c to pain, you’d better get away from ___ .A. reading journalsB. seeing scary moviesC. listening to the newsD. going to the concert15.What would be the best title for the text?A. Emotional Centers of Your BrainB. You Can Use Brain-imaging TechnologyC. You Can Feel Others’ PainD. Painful Images to the Researchers第二节 (共5小题,每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
俯视图n = n+11, m = m+1是a结束输出m输入an否= 0, n= 1贵州省八校联盟2015届高三第三次联考试卷文科数学命制:凯里一中高三数学备课组第Ⅰ卷(选择题 60分)一.选择题:本大题共12小题,每小题5分,在每小题给出的四个选项中,只有一项是符合题目要求的.1.已知集合{|21,*}A x x n n N==-∈,{|51,*}B y y m m N==+∈,则集合A B中最小元素为A.1B.9C.11D.132.已知复数()1m iz m Ri+=∈+为纯虚数,则m=A.1B.1-C.2D.2-3.在一次贵州省八所中学联合考试后,汇总了3217名文科考生的数学成绩,用12,,,a a⋅⋅⋅3217a表示,我们将不低于120的考分叫“红分”,将这些数据按右图的程序框图进行信息处理,则输出的数据为这3217名考生的A.平均分B.“红分”人数C.“红分”率D.“红分”人数与非“红分”人数的比值4.等差数列{}na的前n项和为nS,若12nnS na+=,则下列结论中正确的是A.232aa=B.2323aa=C.2332aa=D.2313aa=5.某几何体的三视图如图所示,则该几何体的体积是A.823π-B.423π-C.43πD.24π-6.已知直线1:210l x y-+=和2:23l x y+=的倾斜角依次为,αβ,则下列结论中正确的是A .90βα=+B .180αβ+=C .90αβ=+D .90αβ+=7.已知1sin cos 2θθ+=,其中θ在第二象限,则cos sin θθ-= A .22-B .22C .72-D .728.已知实数,x y 满足条件002x y x y ≥⎧⎪≥⎨⎪+≤⎩,则不等式22x y +≥成立的概率为A .12 B .14 C .34D .189.正方体1111ABCD A B C D -的棱长为6, 1O 为正方形1111A B C D 的中心,则四棱锥1O ABCD -的外接球的表面积为A .9πB .324πC .81πD .2432π 10.已知O :221x y +=和点(1,3)P -,A 、B 是圆O 上两个动点,则APB ∠的最大值为A .6π B .4π C .3π D .2π 11.记111122ln ,ln ,ln 22a b c e e e e e e=-=-=-,其中e 为自然对数的底数,则,,a b c 这三个数的大小关系是A .a b c >>B .a b c <<C .b c a >>D .b a c >>12.过抛物线C :24y x =焦点F 的直线交抛物线C 于A 、B 两点,||8AB =,过线段AB的中点作y 轴的垂线,垂足为P ,则22||||PA PB +=A .36B .40C .50D .52第Ⅱ卷(非选择题 共90分)二、填空题:本大题共4小题,每小题5分.13.双曲线221412x y -=的离心率为 . 14.数列{}n a 中,143a =-,211n n a a +=+,则7a = .O ABCC 1B 1A 115.已知向量31(2,1),(,)22=-=--a b ,且()()k k +⊥-a b a b ,则实数k = . 16.函数3()3f x x x m =-+的定义域A =[0,2],值域为B ,当AB =Φ时,实数m 的取值范围是 .三.解答题:本大题共6小题. 解答须写出文字说明,证明过程或演算步骤. 17.(本小题满分12分)已知三角形ABC 中,角A 、B 、C 所对的边分别为a 、b 、c ,且sin (sin sin )()b B A C a c =-+.(Ⅰ)求角A ;(Ⅱ)在数列{}n a ,{}n b 中,12|sin n n a -=|nA (*)n N ∈,12|cos n n b -=|nA (*)n N ∈, 数列1{}n na b +的前n 项和为n S .证明:2n S <.18.(本小题满分12分)如图,已知三棱锥O ABC -的三条侧棱OA 、OB 、OC 两两垂直,且4OA OC ==,3OB =.(Ⅰ)求O 点到平面ABC 的距离;(Ⅱ)设1A 、1B 、1C 依次为线段OA 、OB 、OC 内的点. 证明:111A B C ∆是锐角三角形.19.(本小题满分12分)x ylθNMB 2B 1A 2A 1O F 1F 2在一次高三数学考试中,第22、23、24题为选做题,规定每位考生必须且只须在其中选做一题.按照以往考试的统计,考生A 、B 、C 中,A 、B 从23、24随机选作一题,C 从22、23、24题随机选作一题,他们在考试中都按规定选作了其中一道试题.(Ⅰ)求考生A 、B 、C 恰有1人选做第23题的概率; (Ⅱ)求考生A 、B 、C 最多有1人选做第23题的概率.20.(本小题满分12分)已知函数()ln f x x x =-. (Ⅰ)求()f x 的最小值.(Ⅱ)证明:对任意正整数n ,1111ln(1)123n n+++⋅⋅⋅+>+.21.(本小题满分12分)已知椭圆C :2222 1 (0)x y a b a b+=>>左、右焦点为1F 、2F ,1A 、2A 、1B 、2B 是它的四个顶点(其相应位置如图所示).且1112 1B A B A •=-,2221221233B F B F B A =+. (Ⅰ)求椭圆C 的方程;(Ⅱ)过1F 且斜率为1的直线l 与椭圆C 交于M 、N 两点, O 为坐标原点,MON θ∠=,求tan θ.请考生在第22~24三题中任选一题作答,如果多做,则按所做的第一题计分. 22.(本小题满分10分)选修4—1:几何证明选讲 如图,圆1O 、2O 的半径分别为1r 、2r ,两圆外切于C 点,它们的一条外公切线与这两圆分别切于A 、B 两点. (Ⅰ)当CAB CBA ∠=∠时,证明:12r r =; (Ⅱ)当15r =,26r =时,求22CA CB +. 23.(本小题满分10分)选修4—4:坐标系与参数方程已知坐标系中的极点O 与直角坐标系xOy 中的坐标原点O 重合,极轴与x 轴的正半轴重合,且两个坐标系选用相同的单位长度.曲线1C 的极坐标方程为22(1sin )4ρθ+=. (Ⅰ)写出曲线1C 的直角坐标方程,并指明它是什么曲线; (Ⅱ)已知直线l 的参数方程为6cos sinx t y t θθ⎧=+⎪⎨=⎪⎩(t 为参数,0θπ≤<),当直线l 与1C 相切(即l 与1C 只有一个交点)时,求θ.24.(本小题满分10分)选修4—5:不等式证明选讲已知ABC ∆中,角A 、B 、C 所对的边长依次为a 、b 、c . (Ⅰ)当3C π=时,证明:4272AB ππ+≥; (Ⅱ)证明:()()()abc a b c b c a c a b ≥+-+-+-.n = n+11, m = m+1是结束输出输入a n 否0, n = 1秘密★考试结束前 【考试时间:5月 15日15:00—17:00 】贵州省八校联盟2015届高三第三次联考试卷理科数学命制:凯里一中高三数学备课组第Ⅰ卷(选择题 60分)二.选择题:本大题共12小题,每小题5分,在每小题给出的四个选项中,只有一项是符合题目要求的.1.已知集合{|21,*}A x x n n N ==-∈,{|51,*}B y y m m N ==+∈,则集合A B 中最小元素为A .1B .9C .11D .13解:C .{1,3,7,5,9,11,}A =⋅⋅⋅,{6,11,}B =⋅⋅⋅,依题意得答案选C . 2.已知复数()1m iz m R i+=∈+纯虚数,则m = A .1 B .1- C .2 D .2-解:B .设()(1)11222m i i m miz +-+-==+,1m ⇒=-3.在一次贵州省八所中学联合考试后,汇总了3766名理科考生的数学成绩,用12,,,a a ⋅⋅⋅3766a 表示,我们将不低于120的考分叫“红分”,将这些数据按右图的程序框图进行信息处理,则输出的数据为这3766名 考生的A .平均分B .“红分”人数C .“红分”率D .“红分”人数与非“红分”人数的比值解:C .依题意,输出的m 为红分人数,3766m为红分率. 4.等差数列{}n a 的前n 项和为n S ,若12n n S n a +=,则下列结论中正确的是 A .532a a = B .5353a a = C .533a a = D .5343a a = 解:B .令5n =得12345355533a a a a a a a a ++++=⇒=⇒5353a a =.5.某几何体的三视图如图所示,则该几何体的体积是BCDA Oyxyy = 2πxy=sinxπP (π2,1)OA .823π-B .423π-C .43π D .24π-解:B .由三视图易知该几何体是一个底半径为1高为22正方形,高为2的四棱锥得到的几何体,其体积为423π-.故答案选B . 6.已知直线1:210l x y -+=和2:23l x y +=的倾斜角依次为,αβ,则下列结论中正确的是A .90βα=+B .180αβ+=C .90αβ=+D .90αβ+=解:A .12l l ⊥,α为锐角,β为钝角,由倾斜角的定义知答案选A . 7.已知1sin cos 2θθ+=,其中θ在第二象限,则22sin cos sin cos θθθθ-= A .2116-B .37C .37D 37 解:C .2137sin cos sin cos ,(sin cos )284θθθθθθ+=⇒=--=,θ在第二象限, 7cos sin θθ-=,故2237sin cos sin cos sin cos (cos sin )θθθθθθθθ-=-=8.已知实数,x y 满足条件00sin x y x π≤≤⎧⎨≤≤⎩,则不等式2y x π≤成立的概率为A .88π- B .48π- C .4πD .48π+ 解:D .如图,观察发现直线2y x π=和sin y x =在 区间[0,]π上的唯一交点为(,1)2P π,则使条件2y x π≤成立的区域为图中阴影部分,由定积分和几何概型的知识得到答案.9.如图,直线2y kx =+与圆O :222(0)x y r r +=>交于A 、B 两点,并依次与x 轴的负半轴和y 轴的正半轴交于C 、D 两点,当||||||AD DC CB ==时,OA OB •=A .18-B .16-C .15-D .63解:B .解:AB 的中点为P ,依题意为P 线段CD 的中点,则有||||2OC OD ==, 故原点到直线AB 的距离||2OP =⇒||3||62AB CD ==RR 632O 2O 1DCBAC 1B 1A 1D 1P O半径22||||||25OA AP OP =+=,则OA OB •=||||cos 16OA OB OA OB AOB •=∠=-.10.记ln 2ln 3ln 5,,235r s t ===,ln ,ln ,ln a r r b s s c t t =-=-=-,则,,a b c 这三个数的大小关系是A .a b c >>B .c b a >>C .b a c >>D .c a b >>解:D .由比较法不难得出10s r t >>>>,构造函数()ln f x x x =-,知此函数在区间(0,1)上为减函数,从而得到()()()f s f r f t <<即c a b >>11.正方体1111ABCD A B C D -的棱长为6,半径为6的圆1O 在平面1111A B C D 内,其圆心1O 为正方形1111A B C D 的中心, P 为圆1O 上有一个动点,则多面体PABCD 的外接球的表面积为A .88πB .80πC .88223π D .16053π 解:A .设多面体的外接球的半径为R ,依题意得2222(32)(6)6R R -+-=222R ⇒=,故其外接球的表面积为2488R ππ=.故答案选A12.过抛物线C :24y x =焦点F 的直线交抛物线C 于A 、B 两点,||8AB =,P 为y 轴上的动点,则22||||PA PB +的最小值为A .36B .40C .50D .52解:C .设AB 的中点为C ,由抛物线的性质知C 到y 轴的距离为3,故||3PC ≥,由余弦定理得:22||16||8||cos PA PC PC ACP =+-∠,22||16||8||cos PB PC PC BCP =+-∠⇒222||||322||321850PA PB PC +=+≥+=(当||3PC =时等号成立).第Ⅱ卷(非选择题 共90分)二.填空题:本大题共4小题,每小题5分.13.双曲线221412y x -=的离心率为 .解:2.22c e a ===. 14.数列{}n a 中,143a =-,211n n a a +=+,则7a = . 解:2.由已知条件得35713,,22a a a =-=-=15.已知向量1(2,1),()2=-=-a b ,且()()k k +⊥-a b a b ,则实数k = .解:222()()()()0k k k k k +⊥-⇒+-=-=a b a b a b a b a b16.已知10()(21)f x x =-1098109810a x a x a x a x a =+++⋅⋅⋅++,则222223344C a C a C a +++21010C a ⋅⋅⋅+=解:180.对等式10(21)x -1098109810a x a x a x a x a =+++⋅⋅⋅++两边求导得920(21)x -98710982110982a x a x a x a x a =+++⋅⋅⋅++.继续对此等式两边求导,得 8360(21)x -98710982109988721a x a x a x a =⨯+⨯+⨯+⋅⋅⋅+⨯.令1x =得10982360109988721a a a a =⨯+⨯+⨯+⋅⋅⋅+⨯2222233442(C a C a C a =+++21010C a ⋅⋅⋅+) ⇒222223344C a C a C a +++21010180C a ⋅⋅⋅+=. 三.解答题:本大题共6小题. 解答须写出文字说明,证明过程或演算步骤. 17.(本小题满分12分)已知三角形ABC 中,角A 、B 、C 所对的边分别为a 、b 、c ,且sin (sin sin )()b B A C a c =-+.(Ⅰ)求角A ;(Ⅱ)在数列{}n a ,{}n b 中,12|sin n n a -=|nA (*)n N ∈,12|cos n n b -=|nA (*)n N ∈,数列1{}n na b +的前n 项和为n S .证明:2n S <.解:(Ⅰ)由sin (sin sin )()b B A C a c =-+及正弦定理得2222()()b a c a c a b c =-+⇒=+ACx由勾股定理定理得2A π=. ……6分(Ⅱ)由(Ⅰ)得12|sin n n n a b -+=|nA +12|cos n -11|2(|sin||cos |)222n n n n nA ππ--=+= 1112n n n a b -⇒=+.故011112222222n n nS -=++⋅⋅⋅+=-<. ……12分18.(本小题满分12分)如图,已知三棱锥O ABC -的三条侧棱OA 、OB 、OC 两两垂直,且4OA OC ==,3OB =.(Ⅰ)求O 点到平面ABC 的距离;(Ⅱ)设1A 、1B 、1C 依次为线段OA 、OB 、OC内的点. 证明:111A B C∆是锐角三角形.解:(Ⅰ)依题意得5AC AB BC =====,则ABC∆中,AC边上的高12ABC h S AC h ∆==⇒=⋅= 设O 点到平面ABC 的距离为d ,则由1133O ABC A OBCABC OBC V V dS OA S --∆∆=⇒⨯=⨯8d =⇒=O 点到平面ABC 的距离为d =.……6分 (Ⅱ)设111,,OA x OB y OC z ===,则有04,03,04xy z <<<<<<依题意得111111A B B C C A===22221111111111111cos 2A B A C B C B A C A B A C +-∠==⨯则有1110cos 1B AC <∠<111B AC ⇒∠为锐角,同理可得111A B C ∠、111AC B ∠均为锐角.故111A B C ∆是锐角三角形.……12分O A B C xy zC 1B 1A 1解法二:依题意,建立如图所示坐标系O xyz -. (Ⅰ)则(4,0,0)OA =,(4,3,0),(4,0,4)AB AC =-=-设平面ABC 的法向量为m ,则有0(3,4,3)AB AC =••⎧=⎪⇒⎨=⎪⎩m m m设O 点到平面ABC 的距离为d||634||17OA d •==m m . ……6分 (Ⅱ)设1(,0,0),(0,,0),(0,0,)OA a OB b OC c ===,则有04,03,04a b c <<<<<<,则21111(,,0)(,0,)0A B AC a b a c a •=--=>,又1A 、1B 、1C 三点不共线111B AC ⇒∠为锐角, 同理可得111A B C ∠、111AC B ∠均为锐角.故111A B C ∆是锐角三角形. ……12分19.(本小题满分12分)在一次高三数学考试中,第22、23、24题为选做题,规定每位考生必须且只须在其中选做一题.按照以往考试的统计,考生A 、B 、C 中,A 、B 选做以上每道试题的可能性均为13,C 只选做23、24题,且他选做这两道试题中每道试题的可能性均为12.他们在考试中都按规定选做了其中一道试题.(Ⅰ)求考生A 、B 、C 最多有1人选做第23题的概率;(Ⅱ)设考生A 、B 、C 在第22、23、24中所选择的不同试题个数为ξ,求ξ的分布列及E ξ. 解:(Ⅰ)设“考生A 、B 、C 最多有1人选做第23题”为事件M ,选做23题的人数为η,则11221111111112()1(2)(3)133********p M p p C C ηη=-=-==-⨯⨯-⨯⨯⨯-⨯⨯=故考生A 、B 、C 中最多有1人选做第23题的概率为23. ……6分(Ⅱ)依题意得ξ可取1,2,3,(1)p ξ==1221311( )29C ⨯⨯=,(3)p ξ==122221 312( )29C A ⨯⨯=,122(2)1993p ξ==--=,即ξ的分布列为ξ1 2 3p19 23 29故123939E ξ=⨯+⨯+⨯=9. ……12分20.(本小题满分12分)已知函数1()ln f x x x=-.(Ⅰ)求()f x 的最大值.(Ⅱ)对于数列{}n a ,其前n 项和为n S ,如果存在实数M ,使n S M <对任意*n N ∈成立,则称数列{}n a 是“收敛”的;否则称数列{}n a 的“发散”的.当1n a n=时,请判断数列{}n a 是“收敛”的还是“发散”的?证明你的结论. 解:(Ⅰ)令11()ln ()1x g x x x g x x x'-=-⇒=-=,由()01g x x '>⇒>,()0g x '< 01x ⇒<<,故()g x 在区间(0,1)上为减函数,在区间(1,)+∞上为增函数.故min ()(1)1g x g ==,即当0x >时,ln 1x x -≥恒成立,故10()1ln f x x x<=≤-即当1x =时,()f x 的最大值为1. ……6分(注:直接对()f x 求导,而未说明ln x x -恒不为零的,扣1分). (Ⅱ)由(Ⅰ)知ln 1x x -≥即1ln x x -≥(当1x =时等号成立) 依次令2341,,,,123n x n+=⋅⋅⋅得 223344111ln ,1ln ,1ln ,,1ln 112233n n n n ++->->->⋅⋅⋅->,即 121314*********ln ,ln ,ln ,,ln ln ln ln 112233123123n n n n +>>>⋅⋅⋅>⇒+++⋅⋅⋅+>+++1lnn n+⋅⋅⋅+11112341ln ln(1)123123n n n n+⇒+++⋅⋅⋅+>⨯⨯⨯⋅⋅⋅⨯=+. 即1111ln(1)123n n+++⋅⋅⋅+>+. ……11分对任意实数,M 当1Mn e +>时,ln(1)n M +>,从而1111123M n+++⋅⋅⋅+>故不存在实数M ,使1111123M n+++⋅⋅⋅+<对任意*n N ∈成立.依题意知数列{}n a 是“发散”的. ……12分21.(本小题满分12分)已知椭圆C :2222 1 (0)x y a b a b +=>>左、右焦点为1F 、2F ,1A 、2A 、1B 、2B 是它的四个顶点(其相应位置如图所示).且1112 1B A B A •=-,2221221233B F B F B A =+.(Ⅰ)求椭圆C 的方程;(Ⅱ)过1F 且与两坐标轴均不平行的直线l 与椭圆C 交于M 、N 两点, O 为坐标原点,MON θ∠=,求tan θ的取值范围.解:(Ⅰ)设c =1112 1B A B A •=-⇒222(,)(,)1a b a b a b c -=-+=-=-1c ⇒= ①由22212212122(,)(,)(,)(,)33333a cB F B F B A c b c b a bb -=+⇒-=--+-=-223a c c a c -⇒=⇒= ②由①、②两式得1,2,c a b ==.故椭圆C 的方程为22143x y +=. ……5分 (Ⅱ)由(Ⅰ)得椭圆C 的方程为22143x y +=,1F 的坐标为(1,0)-依题意,设l 的方程为(1)(0)y k x k =+≠由222222(1)(43)84120143y k x k x k x k x y =+⎧⎪⇒+++-=⎨+=⎪⎩设1122(,),(,)M x y N x y ,则有221212224128,4343k k x x x x k k -=+=-++……8分则2212(1)||43k MN k +==+,又点O 到直线l 的距离d=, 216||||243ABCk S d MN k ∆⇒=⨯=+即216||||||sin 243k OM ON k θ⨯=+ ③ 又22211221212 (,)(,)(1)()OM ON x kx k x kx k k x x k x x k •=++=++++22422222(1)(412)8512434343k k k k k k k k +-+=-+=-+++,即||||cos OM ON θ⨯=2251243k k +-+④由③、④得tan θ==由2211191200tan 0512121685k k θ>⇒<<<⇒-<<+. 故tan θ的取值范围是12(,0)5-. ……12分(注:本题有其它解法,请根据不同解法进行判分)请考生在第22~24三题中任选一题作答,如果多做,则按所做的第一题计分. 22.(本小题满分10分)选修4—1:几何证明选讲如图,圆1O 、2O 的半径分别为1r 、2r ,两圆外切于C 点,它们的一条外公切线与这两圆分别切于A 、B 两点.(Ⅰ)当CAB CBA ∠=∠时,证明:12r r =;(Ⅱ)当1r =2r =时,求22CA CB +.证明:(Ⅰ)连接1O A 、2O B 、12O O ,由两圆外切于C 点知12O O 经过C 点, 由AB 分别与两圆分别切于A 、B 两点,知1290O AB O BA ∠=∠=,11//O A O B ∴,D O 1CO 2AB12180CO A CO B ∴∠+∠=由弦切角定理知122,2CO A CAB CO B CBA ∠=∠∠=∠,又CAB CBA ∠=∠12CO A CO B ∴∠=∠,结合12180CO A CO B ∠+∠=知1290CO A CO B ∠=∠=∴四边形12O ABO 是矩形,12O A O B ∴=,即12r r =. ……5分(Ⅱ)由(Ⅰ)知12180CO A CO B ∠+∠=,且11//O A O B .122,2CO A CAB CO B CBA ∠=∠∠=∠,90,90CAB CBA ACB ∴∠+=∠=过1O 作2O B 的垂线,设垂足为D ,则有12265,65OO DO =+=-21O D ∴=2222122(65)(65)430OO DO -=+--=22221430AC BC AB O D ∴+===. ……10分23.(本小题满分10分)选修4—4:坐标系与参数方程已知坐标系中的极点O 与直角坐标系xOy 中的坐标原点O 重合,极轴与x 轴的正半轴重合,且两个坐标系选用相同的单位长度.曲线1C 的极坐标方程为22(1sin )4ρθ+=.(Ⅰ)写出曲线1C 的直角坐标方程,并指明它是什么曲线;(Ⅱ)已知直线l 的参数方程为6cos sinx t y t θθ⎧=+⎪⎨=⎪⎩(t 为参数,0θπ≤<),当直线l 与1C 相切(即l 与1C 只有一个交点)时,求θ. 解:(Ⅰ)由22(1sin )4ρθ+=⇒222222222(2sin cos )4cos 2sin 4142x y ρθθρθρθ+=⇒+=⇒+=.即曲线1C 的直角坐标方程为22142x y +=,它是中心在坐标原点,焦点在x 轴上的椭圆. ……5分(Ⅱ)将6cos sinx t y t θθ⎧=⎪⎨=⎪⎩代入22142x y +=得222(2sin cos )26cos 20x t θθθ+++=① 依题意①式的判别式0∆=⇒22222(26cos )8(2sin cos )0sin cos tan 1θθθθθθ-+=⇒=⇒=±而04πθπθ≤<⇒=或34πθ=. ……10分24.(本小题满分10分)选修4—5:不等式证明选讲已知ABC ∆中,角A 、B 、C 所对的边长依次为a 、b 、c . (Ⅰ)当3C π=时,证明:4272AB ππ+≥; (Ⅱ)证明:()()()abc a b c b c a c a b ≥+-+-+-. 证明:(Ⅰ)当3C π=时,23A B π+=⇒43431434()()()()(5)222B AA B A B A B A B A B A Bπππππ+=++=++=++3427(52)22B A A B ≥+⨯=. 当且仅当4B A A B =即当24,99A B ππ==时等号成立. ……5分 (Ⅱ)在ABC ∆中,0,0,0a b c b c a c a b +->+->+-> 由均值定理得22()()()2a b c b c a a b c b c a b +-++-+-+-≤=①(当a c =时取等号);同理可得2()()b c a c a b c +-+-≤②(当a b =时取等号);2()()c a b a b c a +-+-≤③(当b c =时取等号). 由①、②、③得22()[()()()]abc a b c b c a c a b ≥+-+-+-,又0,()()()0()()()abc a b c b c a c a b abc a b c b c a c a b >+-+-+->⇒≥+-+-+- 当a b c ==时等号成立. ……10分。
贵州省八校联盟2015届高三第三次联考英语命题学校:凯里一中本试卷分第一卷(选择题)和第二卷(非选择题)两部分,第一卷第1页至第6页,第二卷第6页至9页。
考试结束后,请将本试卷和答题卡一并交回。
满分120分,考试用时100分钟。
第一卷(选择题,共70分)注意事项:1.答题前,考生务必用黑色碳素笔将自己的姓名、准考证号、考场号、座位号在答题卡上写清楚。
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第一部分:阅读理解(共两节,满分40分)第一节(共15小题,每小题2分,共30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑AEight-year-old Cieran Kelso and Winter the dolphin have more things in common than most people and dolphins. That is because they both have prosthetic (假肢)!Winter, the star of the movie Dolphin Tale,is Cieran’s idol because they both swim with the help of prosthetic flippers.Florida’s Clearwater Marine Aquarium(水族馆), where Winter lives, usually only lets visitors swim in the dolphin tank every three weeks or so, but when its chief officer David Yates heard Cieran’s story he said he must make a swim-and-greet happen.Local tourism officials flew Cieran and his family to the aquarium from England after a year of planning. His parents had a hard time keeping the surprise a secret for so long! They told Cieran that the trip was just going to be a business trip for his father Gary, and it wasn’t until they were halfway there that flight attendants announced that the trip was actually for Cieran to meetWinter!Cieran caught a disease that cost both of his legs and most of his fingertips. He still love to play sports like soccer and gymnastics with his friends, but it’s taken him a little longer to learn how to swim.To help him catch up with his friends, Cieran’s father Gary, with the help of a prosthetic specialist, created prosthetic flippers so that Cieran could move like his idol, Winter.“His first words when he saw the film was” Winter’s disabled, just like me. It’s just been a dolphin in a film for a long time and now it’s real… It’s just a dream come true,” said Cary.Once in the tank he fed Winter fish and played with her for more than an hour. Cieran’s sister Layla and Winter’s “sister” Hope also joined them for a while. He said he could have swam “ for a million hours” if he was allowed to!After the swim Cieran announced he wants to work at the aquarium so that he can always look after Winter, his new best friend. “ The feeling was great and em otional to be swimming witha dolphin. I love dolphins. But the best dolphin I’ve ever loved is Winter, he said.1.From the text, we know Winter________.A.played a leading role in Dolphin TaleB.was an idol for most kids in EnglandC.swam with visitors three times a weekD.performed a swim-and –great in the tank2. What didn’t Cieran know at first?A. He could have a business trip with his dad.B. He could swim with Winter togetherC. He would act in the movie Dolphin TaleD. He would get a new pair of prosthetic flippers3. From what Gary said, we know_________.A. Cieran showed pity for WinterB. Cieran had a dream to see a film.C. Cieran was glad to meet WinterD. Cieran found Winter a real disabled dolphin4. What is the main idea of the passage?A. A disabled boy met a dolphin with disabilityB. A boy is swimming with a dolphin alone.C. A dream of meeting a dolphin comes true.D. A boy becomes a friend of a dolphin.BCanyon Country Youth CorpsJoin the Canyon Country Youth Corps for an experience of a lifetime!A job with purpose and adventure! Work and play in the Canyon Country of the Four Corners Region!As a CCYC crewmember you will work and live outdoors with your fellow crewmembers in one of the most beautiful landscapes in the American Southwest while strengthening yourself both physically and mentally. If you are looking for a job with purpose that will leave a lasting impact on the lives of others as well as the environment, look no further! By joining CCYC as a crewmember you will make a lasting difference to the environment, you crew, and yourself. Apply now and start the adventure!CCYC 2014 Crew SchedulesCrew leader Training: March 12 Crewmember Start Day: March 19Training Weeks: March 20-31 Orientation River Trip: March 29-31Sleep and EatWhile one crew, employees will camp in tents. If tents are provided to them by CCYC, the participant will have to share with one or two more people of the same gender. Members have the choice of bringing their own tents and will not have to share. There is a $ 30 per workweek food deduction(扣除)while in the field( includes breakfast, lunch, dinner and snacks).Please be aware that CCYC tents are used tents have been donated and not always in excellent working condition.(i.e. zipper (拉链)doesn’t work well, hole in fly, etc.)Other Perks (额外收入)Crew Leaders: $ 400--$ 500 per week during sessions, depending on experience and postion. Crewmembers : Pay: $300 per weekHow to ApplyComplete the appropriate application and mail, fax, or email it.5.The text is written for those who want to____________.A.do an adventurous travel in America B. find a job to protect the environmentC work for their further college education D. get the experience of living outdoors6.If you join in CCYC, you will _______.A.have to donate a tent to it B. share you own tent with othersC be supplied with a tent to sleep in D. be required to bring your own tent7.How much will a crewmember earn per week at last?A.$550 B. $400 C. $ 300 D.$270CChildren told to go play outdoors in new nature campaignThe Wild Network aims to get schoolchildren off their computers and outdoors to experience the wonders of the wildernessA campaign is being launched to encourage children to surrender 30 minutes of screen time a day to head for the great outdoors.The newly formed Wild Network – a collaboration of nearly 400 organizations - is attempting to attract youngsters away from television and computer screen and into fields, woods and parks.Organizers say it is the UK's biggest ever campaign to reconnect children with nature and outdoor play, and claim it could help improve fitness, mental alertness and general wellbeing.A documentary film, Project Wild Thing, will be shown at more than 50 cinemas across the UK from Friday. It looks at the increasingly fragile(脆弱的) link between children and nature.Members of the network include the National Trust, RSPB, Play England and the NHS sustainable development unit.Andy Simpson, chairman of the Wild Network, said: "The tragic truth is that kids have lost touch with nature and the outdoors in just one generation."Time spent outdoors is down, roaming ranges have fallen drastically, activity levels are declining and the ability to identify common species has been lost."Suggestions of how to get more time in nature include collecting conkers, camping or snail racing, and observing autumn color on trees.From January, the network will aim to make suggestions to politicians on how government can do more to get children muddy and bright-eyed.This is not the first time the message of less screen, more play has been brought up. Children in the 1980s were entreated to do the same by the BBC TV series Why Don't You, whichsomewhat confusingly called on its viewers to "switch off your TV set, and go do something less boring instead".8.The Wild Network was set up in order to ________.A.monitor students’ behavior at schoolB.help students know more about scienceC.reduce students’ time spent in classroomsD.encourage students to play outdoor games9.What does the word “surrender” in paragraph two mean?A.give in B. give back C. give up D. give out10.According to Andy Simpson, nowadays kids_________.A. have little connection with natureB. live farther away from the countryC. know the name of common speciesD. prefer going camping to staying at home11.Which of the activities would NOT be encouraged by the Wild Network?A. Playing on the beachB. Exercising in the gymC. Going fishingD. Bird-watchingDLondon isn't for everyone. Some promising students ignore it as an option. However, others jump at the chance without proper consideration; student life in London is very different to campus life elsewhere.The main issue for most students in deciding whether to study in the city is their sense of how much it will cost to live in the capital. It must be acknowledged that rental prices are the highest in the country, and students should be prepared for this even with the extra loan on offer. If you do your homework, then that is where the extra costs end.If you keep your eye open, students discounts are everywhere and many nightclubs run students night during the week, with students unions ensuring expensive nightlife is never an issue. And if you feel like earning a bit of extra money, generally part-time work is pretty easy to come by.The transport network is good and generally affordable, especially with the Student Oysterphotocard, but the density of London means most journeys are possible by foot, and 24-hours buses ensure a night out rarely requires a taxi.A final benefit of the city for students, which is seldom considered by most until they actually arrive, is the power of London to connect people. London’s status as a world city means employers, including banks such as HSBS, media companies like BSkyB, publisher such as Penguin and every kind of business in-between, choose to locate their headquarters in London.Many of these employers provide opportunities such as networking events and interview training, which are often advertised through London universities themselves, while internships, work experience and graduate schemes are all available within the city.Of course when it comes down to personal preference, London is just one city on a long list of options, but before deciding, prospective students should try hard to find out the true reality in terms of the costs and benefits to them personally.12.Some students don’t choose London because ________.A. London is the capital of the UKB. they have no way to get the extra loanC. they dislike doing their homeworkD. London witnesses the higher rents13. To help out with your expense in London, you can _________.A. find a flat with lower rentalB. join a lot of students unionsC. do part-time jobs in your spare timeD. stop yourself going to nightclubs14. Before getting to London, most students usually fail to notice_________A. the transport network is generally the most affordableB. so many large companies are located in LondonC. 24-hours buses can provide great convenience for themD. there live too many world-famous men and women15. Which of the following is the best title for the passage?A. Benefits of Studying in LondonB. Disadvantages of studying in LondonC. High Rental Prices in LondonD. Choices to be Avoided by students第二节(共5小题,每题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
遵义航天高级中学2015届高三上学期第三次模拟考试英语试题阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。
并在答题卡上将该选项涂黑.AWe spent a day in the country, picking wild flowers. With the car full of flowers we were going home. On our way back my wife noticed a cupboard (柜厨) outside a furniture s hop. It was tall and narrow. “Buy it, ” my wife said at once. “We’ll carry it home on the roof rack. I’ve always wanted one like that.”What could I do? Ten minutes later I was £20 poorer; and the cupboard was tied on the roof rack. It was six feet long and eighteen inches square, quite heavy too.In the gathering darkness I drove slowly. Other drivers seemed unusually polite that evening. The police even stopped traffic to let us through. Carrying furniture was a good idea.After a time my wife said, “There’s a long line of cars behind. Why don’t they overtake, I wonder?” In fact a police car did overtake. The two officers inside looked at us seriously as they passed. But then, with great kindness, they led us through the rush-hour traffic. The police car stopped at our village church. One of the officers came to me.“Right, sir, ” he said. “Do you need any more help?”I was a bit puzzled. “Thanks, officer, ” I said. “You have been very kind. I live just on the road.”He was staring at our car, first at t he flowers, then at the cupboard. “Well, well, ” he said, laughing. “It’s a cupboard you’ve got there! We thought it was something else.”My wife began to laugh. The truth hit me like a stone between the eyes. I smiled at the officer. “Yes, it’s a cupboar d, but thanks again.” I drove home as fast as I could.1. Other drivers thought the author and his wife were _______.A. carrying a cupboard to the churchB. sending flowers to the churchC. carrying nothing but a piece of furnitureD. going to attend a funeral at the church2. The police will be more polite to those who are _______.A. driving in gathering darknessB. in great sorrowC. driving with wild flowers in the carD. carrying furniture3. What did the husband think of this matter?A. It was very strange.B. He took great pride in it.C. He felt ashamed of it.D. He was puzzled at it.BHere is some information about several famous local bakeries(面包烤房) in Indiana, the US. They serve as a social gathering place for locals.Maple Lane BakeryAt 8260 S. State Rd. Claypool, IN. (574) 566-2917, it offers a variety of cooked pies, cookies, and bread. With 20 years’ experience Maple Lane Bakery has specialized in the making of pies. The menuincludes peach pie $7.19, berry pie $7.70, apple pie $7.19 and banana pie $6.99. Feel free to place an order at least 24 hours in advance.Betty’s Cakes & Candy ShopAt 816 E. Winona Avenue Warsaw, IN. (574) 269-1231, it specializes in cakes and offers cookies and candies. The chocolate cookies are so ld at $8.99 a dozen. Betty’s Cakes & Candy Shop, started half a century ago, specializes in wedding cakes and birthday cakes. Buying a cake from Betty’s will not disappoint you as they are always excellent.Crepes’ Quality BakeryAt 217 S. Cavin Street Ligonier, IN. (260) 894-3024, this third generation bakery is located downtown Ligonier. It offers cookies and cupcakes, and specializes in rolls and bread. If you plan to buy cookies for the office or work area, you had better get there early as the building workers arrive just before 500 am waiting for the doors to open.Olympia Candy KitchenAt 136 N. Main Street Goshen, IN. (574) 533-5040, it has been welcoming visitors for almost a century in its unchanged location in downtown Goshen, Indiana. Its tradition began in 1912 when Greek Nicholas began making his own chocolates. Today this family-owned operation offers all kinds candies and boxed candies.If you need an order, you should call ahead of time to see if they can meet your request.CSome people are lucky enough to be born with a good sense of direction and even if they have only visited a place once, they will be able to find it again years later.I am one of those unfortunate people who have poor sense of direction and I may have visited a place time after time but I still get lost on my way there. When I was young I was so shy that I never dared ask complete strangers the way and so I used to wander round in circles and hope that by some chance I would get to the spot I was heading for.I am no longer too shy to ask people for direction, but I often receive replies that puzzle me. Often people do not like to admit that they didn’t know their hometown and will insist on telling you the way, even if they do not know it; others, who are anxious to prove that they know their hometown very well, will give you a long list of directions which you cannot possibly hope to remember, and still others do not seem to be able to tell between their left and their right and you find in the end that you are going in the opposite direction to that in which you should be going.If anyone ever asks me the way to somewhere, I always tell them I am a stranger to the town in order to avoid giving them wrong direction but even this can have embarrassing results.Once I was on my way to work when I was stopped by a man who asked me if I would direct him the way to the Sunlight Building. I gave my usual reply, but I had not walked on a few steps when I realized that he had asked for directions to my office building. However, at this point, I decided it was too late to turn back and search for him out of the crowd behind me as I was going to meet with someone at the office and I did not want to keep him waiting.Imagine my embarrassment when my secretary showed in the very man who had asked for directions of my office and his astonishment when he recognized me as the person he had asked.8. What is the writer going to do when someone asks him for direction?A. He will direct the right way to the person willingly.B. He will reply to it by the means of being a stranger to the town.C. He will give the very person long list of direction.D. He is going to show the man an opposite direction.9. Why did the writer consider himself to be an unlucky dog?A. Because of his poor sense of direction.B. Because he always forgot the way home.C. Because he did not have any friend.D. Because he used to be shy and dared not ask others the way.10. How did the visitor feel when he was showed into the very room?A. He felt strange.B. He felt embarrassed.C. He felt very sad.D. He felt astonished.11. Who showed the right way to the interviewee according to the passage?A. Someone we don’t know.B. The writer did it for himself.C. The secretary did so.D. A warm-hearted old lady did such a thing.DMotherhood may make women smarter and may help prevent dementia(痴呆) in old age by bathing the brain in protective hormones(荷尔蒙) , U.S. researchers reported on Thursday.Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s(早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.“Our research shows that the hormones of pregnancy(怀孕) are protecting the brain, including estrogen(雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.“They do not realize that hormones are washing on the brain. If you look at female animals who havenever gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations (改变) to the brain.”12. How do scientists know “Motherhood may make women smarter”?A. Some researchers have told them.B. Many women say so.C. They know it by experimenting on rats.D. They know it through their own experience.第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
贵州省2015届高三英语模拟试题(三)本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
第Ⅰ卷第1至第8页。
第Ⅱ卷第8页。
考试结束后,请将本试卷和答题卡一并交回。
满分120分,考试用时100分钟。
第Ⅰ卷(选择题,共70分)注意事项:1. 答题前,考生必须用黑色墨水签字笔将自己的姓名、准考证号填写清楚,并贴好条形码。
请认真核对条形码上的准考证号、姓名和科目。
2. 每小题选出答案后,用2B铅笔把答题卡上对应题目的答案和标号涂黑。
如需改动,用橡皮擦干净后,再选涂其他答案标号。
在试题卷上作答无效。
第一部分阅读理解(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A 、B 、C 和 D )中,选出最佳选项,并在题卡上将该项涂黑。
ABranches hit my face, sending blood down my cheeks. Every one of my pores (毛孔) was filled with sweat, but I couldn’t stop. They were clos e behind. I could not, I would not go back. They only saw my black skin and did not know of the human soul that lived under by flesh.The sound of the dogs came closer. I hid myself in the shadows beneath the trees above me, thankful for the first time for my black skin. My bare feet bled. The moonlight threatened to give me away. Its brightness seemed to make fun of me as I ran. Even the moon was white. The whole world seemed to be made for people with a white surface. Suddenly I fell down to the forest floor. My legs begged me not to make them run. I ignored them and desperately tried to escape and run away from these evil people, the moon, and my own dark skin.It was a failed attempt. I had hardly ran ten steps when the dogs’ teeth were in my face. Te ars burned my face, tears of anger, hate, and fear. “Please!” I begged. “Please let me go!” My breath was short, and my whole body was filled with blood. I stopped for breath. “Actually we’re all the same! That’s what really matters! Please let me go.”“Let you go?” a man laughed. “How could it be? You were born to serve us.” They laughed as they marched along, pulling me by a long rope like a dog. I was exhausted after running for days and I could feel that blood was flowing down my body. At last, I fell down in the grass, covered with blood. My soul moved away from my body and I was free at last.1. According to the text, the author was probably _____.A. a slaveB. a hunterC. a thiefD. a prisoner2. To ask the men to let him go, what reason did the author give?A. He was bleeding.B. He was out of breath.C. He was also a human.D. He was afraid of dogs.3. It can be inferred from the text that _____.A. a man treated the author’s woundsB. the dogs bit one of the author’s legsC. a man set the author free out of mercyD. the author lost consciousness in the end4. What’s the best title for the text?A. A failed attempt to get freedomB. A dangerous hunting experienceC. A story of an adventure in woodsD. A struggle for survival and powerBIt’s time to study like a rock star! Many rock stars are smart enough to know that it’s cool to go to a top-rated school. Let’s check out these musicians who went to Ivy League colleges.Rivers CuomoThe lead singer and guitarist of the band, Weezer, is an Ivy League rocker, graduating from Harvard with outstanding performance. Rivers Cuomo earned his bachelor’s degree in English after 10 year on-off work at this famous university.John LegendThe Grammy Award winning singer and songwriter had scholarship offers from Harvard, Georgetown and Morehouse before attending the University of Pennsylvania, where he majored in English with an emphasis on African American literature. John Legend famously contributed to Kanye West’s album, “The College Drop out (辍学者)”. He always supports education reform and has even taken part in a public performance for dropout prevention for free.Lisa LoebIt was just a few years after she graduated from Brown University with a degree in comparative literature that singer Lisa Loeb had a hit single (畅销的单曲唱片) with her song “Stay”. The smart rocker made history with “Stay” as the only artist to ever have a number one single before being signed to a recording contract.Greg GraffinThe lead singer of the L.A. punk band, Bad Religion, earned his Ph.D. from Cornell University. He later worked at the University of California at Los Angeles as a life science professor. Greg Graffin has said, “[Evolution (进化) is] a controversial topic that I research both on an academic (学术的) leve l and in my music.”50. We can learn from the text that John Legend _____.A. won a Grammy Award at collegeB. majored in comparative literatureC. became famous for The College DropoutD. once performed to help school dropouts6. Which of the following musicians taught at a university?A. Rivers Cuomo.B. John Legend.C. Lisa Loeb.D. Greg Graffin.7. Which university did the singer of “Stay” graduate from?A. Harvard University.B. The University of Pennsylvania.C. Brown University.D. Cornell University.8. The text mainly aims to _____.A. advise readers to pursue their studiesB. advise readers to learn to enjoy rock musicC. show the importance of entering a top-rated schoolD. show the relationship between education and musicCHe has climbed a high mountain, raced the 24-hour motorcycle track in France and even, walked from Tokyo to Kyoto, a distance of 500 km. Now Evolta, Panasonic’s 7-inch Humanoid Robot is getting ready for his biggest challenge — the Ironman Triathlon (铁人三项) Championship in Hawaii.To compete in this exhausting contest, the green & white robot which is small enough to fit on a human palm, will have to swim 2.4 miles in the rough ocean, bike 112 miles across the hot Hawaiian desert and, run a full marathon distance of 26.2 miles in the painfully hot weather.Given that he is so tiny and powered by rechargeable batteries (充电电池) of Panasonic, he will be allowed some freedom in the way he competes. For one, he will be starting the race on October 23rd, 2011, three weeks following the real event and, while human competitors have at most 17 hours to complete the triathlon, Evolta will be given 7 days, during which his only “breaks” will be to recharge his batteries.The biggest difference however, will be that unlike a single human body doing all three races, there will be three different “Evolta” robot bodies competing — each built for the specific race. Evolta the swimmer will be equipped with special arms to swim forward. Evolta the biker, will be on a little two-wheeler with training wheels, while Evolta the runner, will be fixed on what looks like a wheel.In spite of all these advantages, the robot’s creator Tomotaka Takahashi believes that the race will be a huge challenge — not only will Evolta have to battle the wind and sun, but also, small road obstacles (障碍) that humans just step over. The water will be even worse thanks to the strong waves, tides and ocean winds. But if he does complete it, Evolta will add another feather in his cap and just prove the already well-known fact that Panasonic’s rechargeable Evolta batteries are indeed the “world’s longest-lasting batteries”!9. When competing in the triathlon, Evolta _____.A. has to finish the competition in 17 hoursB. will be allowed to have a break from time to timeC. will start three weeks earlier than other competitorsD. will have three specially-built bodies for the competition10. By saying “Evolta will add another feather in his cap”, the author means _____.A. Evolta will celebrate the victory with a feather capB. Evolta will become very famous and attractiveC. Evolta will be awarded with another feather capD. Evolta will have another thing to be proud of11. From the text, we can infer that Evolta will take part in the competition to _____.A. challenge human runnersB. prove the potential of robotsC. market Panasonic’s batteriesD. show today’s advanced technology12. The text is mainly about a robot _____.A. using the energy-efficient batteriesB. accomplishing a challenging triathlonC. winning human athletes for the first timeD. competing in the Ironman Triathlon ChampionshipDMen take more risks. In studies, men as a whole display less cautious behavior than women, such as driving at higher speeds and closer to other cars, not wearing seat belts, and driving while drunk more often. They even make riskier turns and take less time when parking (although they do a more accurate job, says Tom Vanderbilt, author of Traffic: Why We Drive the Way We Do (And What It Says About Us).BUT ... how someone drives doesn’t necessarily equal how well he drives. Men do seem to be better at certain driving tasks than women. However, this slight edge (优势) in ability doesn’t translate into better driving records. The kinds of accidents men get into are generally the result of their riskier behavior. According to one study, men are more than three times as likely to be ticketed for “aggressive driving” than women, and more than 25 percent as likely to be at fault in an accident.Perception (观念) is a powerful thing. In spite of the research, it is still difficult to determine whether men are truly innately (天生地) better drivers than women or if they’re simply more confident in their driving because they’re considered to be better, and thus show better skills. Similarly, the perception that women are weaker drivers may negatively affect their performance behind the wheel.Women are catching up ... which isn’t necessarily good news. Men may be responsible for more accidents than women, but the gap is getting smaller. Today, more women drive (and drive more) than ever before, which has the unfortunate consequence of an increase in speeding, aggressive driving, and so on.13. The text is most probably taken from _____.A. a book reviewB. a library guideC. a driving guidebookD. a newspaper report14. The author develops the first paragraph mainly by _____.A. making comparisonsB. giving examplesC. analyzing reasons and resultsD. following the order of importance15. What can we learn from the text?A. Women should be responsible for most accidents.B. Men cause accidents mainly because they are careless.C. Tom Vanderbilt believes that women can park more accurately than men.D. The author doubts whether men are born to be better drivers than women.第二节(共5小题;每小题2分,满分10 分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项, 并在题卡上将该项涂黑。
全国大联考2015届高三第三次联考·英语试卷考生注意 :1.本试卷共150 分。
考试时间120 分钟。
2.答题前 ,考生务必将密封线内的项目填写清楚。
3.请将试卷答案填在试卷后面的答题卷上。
4.交卷时 ,可根据需要在加注“ ”标志的夹缝处进行裁剪。
5.本试卷主要考试内容:高考全部内容(侧重模块5、 6)。
第Ⅰ卷第一部分听力 (共两节 ,满分 30 分 )第一节(共 5 小题 ;每小题 1.5 分 ,满分 7.5 分 )听下面 5 段对话。
每段对话后有一个小题,从题中所给的A、 B、C 三个选项中选出最佳选项 ,并标在试卷的相应位置。
听完每段对话后 ,你都有 10 秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What happened to the woman?A.She lost her car.B.She had a car accident.C.Her keys were locked in the car.2.Why hadn ’ t Mark heardomfr the woman for a long time?A.She is busy.B.She is sick.C.She dislikes Mark.3.How much does one ticket for the bus cost?A.More than one dollar.B.Just a dollar.C.Less than a dollar.4.What ’ s the relationship between the speakers?A.Husband and wife.B.Boss and secretary.C.Customer and hotel clerk.5.Where is Mr Brown?A.In his office.B.Out for a meal.C.At home.第二节(共 15 小题 ;每小题 1.5 分 ,满分 22.5 分 )听下面 5 段对话或独白。
2015 年贵州省八校结盟高考物理三模试卷一、选择题:此题共8 小题,每题 6 分.在每题给出的四个选项中,第1~ 5 题只有一项切合题目要求,第6~ 8 题有多项切合题目要求.所有选对的得 6 分,选对但不全的得3分,有选错的得0 分.1.( 6 分)以下相关物理学史的说法中正确的选项是()A .赫兹最早发现了电磁感觉现象B .奥斯特发现了电流的磁效应,并总结出了右手螺旋定章C.安培经过实验发现了在磁场中产生电流的条件D .库仑发现了电荷之间的互相作用规律﹣﹣库仑定律【考点】:物理学史.【剖析】:依据物理学史和知识解答,记着有名物理学家的主要贡献即可.【分析】:解: A 、法拉第发现电磁感觉现象,故 A 错误;B、奥斯特发现电流的磁效应,安培总结出了右手螺旋定章,故 B 错误;C、法拉第经过实验发现了在磁场中产生电流的条件,故 C 错误;D、库仑发现了电荷之间的互相作用规律﹣﹣库仑定律,故 D 正确;应选: D【评论】:此题观察物理学史,是知识性问题,关于物理学上重要发现、发明、有名理论要增强记忆,这也是考试内容之一.2.( 6 分)以下图,用水平力 F 推乙物块,使甲、乙、丙、丁四个完整同样的物块一同沿水平川面以同样的速度匀速运动,各物块遇到摩擦力的状况是()A .甲物块遇到一个摩擦力的作用B .乙物块遇到一个摩擦力的作用C.丙物块遇到一个摩擦力的作用D .丁物块没有遇到摩擦力的作用【考点】:摩擦力的判断与计算.【专题】:摩擦力专题.【剖析】:分别对各个物体受力剖析,当判断不出接触面上有无摩擦力时我们可借助物体的运动状态进行剖析【分析】:解:接触面是水平的,以下我们只剖析水平方向的力:A、甲:不受摩擦力的作用,假如受摩擦力的话,甲不可以处于均衡状态.B、乙:甲不给乙摩擦力的作用,故乙只遇到丙给它的一个摩擦力的作用.C、丙丁:丁只受地面给它的一个摩擦力的作用.因为丙给乙一个向后的摩擦力,故乙给丙一个向前的摩擦力,丙给丁一个向前的推力,所以丁给丙一个向后的推力,丙静止,故丙遇到地面给它向后的摩擦力.综上所述:甲,不受摩擦力;乙,受 1 个摩擦力;丙,受 2 个摩擦力;丁,受一个摩擦力.应选: B【评论】:当判断不出接触面上有无摩擦力时我们可借助物体的运动状态进行剖析,剖析的次序一般是从上到下,从外到里3.( 6 分)用均匀导线做成的正方形线圈边长为L ,正方形的一半放在垂直于纸面向里的匀强磁场中,以下图,当磁场以的变化率减弱时,则()A .线圈中产生的电动势E=?B .线圈中 a、b 两点间的电势差为C.线圈中 a 点电势低于 b 点电势D .线圈中感觉电流方向为acbda【考点】:法拉第电磁感觉定律;楞次定律.【专题】:电磁感觉与电路联合.【剖析】:由楞次定律能够判断出感觉电流的方向,由法拉第电磁感觉定律能够求出感觉电动势,由欧姆定律能够求出 a、b 两点间的电势差.【分析】:解: A 、由法拉第电磁感觉定律可得,感觉电动势E==S=l × ×=?,故A正确;B、阻R,a、 b 两点的差U ab=× =,故 B ;C、磁感度增大,由楞次定律可知,感流沿acbda 方向, acb 段相当于源,流沿 a 流向 b,在源内部流从低点流向高点,所以 a 点低于 b 点,故 CD 正确;故: ACD .【点】:本考磁感律,要求熟用楞次定律、法拉第磁感定律、欧姆定律即可正确解.4.( 6 分)国研究小借助于智利的甚大望,到了一双星系,它二者上的某点 O 做匀速周运,此双星系中体小成能“吸食”另一体大星体表面物,达到量移的目的,被吸食星体的量大于吸食星体的量.假在演的程中二者球心之的距离保持不,在最先演的程中()A .它做周运的万有引力保持不B .它做周运的角速度不C.体大星体周运迹半径不,速度也不D .体大星体周运迹半径大,速度小【考点】:万有引力定律及其用.【】:万有引力定律的用.【剖析】:双星二者的一点做匀速周运,由互相之万有引力供给向心力,依据万有引力定律、牛第二定律和向心力行剖析.【分析】:解: A 、它之的万有引力 F=,依据数学知得悉,跟着△m 的增大, F 先增大后减小.故 A .B、体小的星体量m1,道半径 r1,体大的星体量m2,道半径 r2.双星的距离 L .移的量△m.m1:2 =(m1+△m)ω r1⋯①m2:2 =(m2△m)ω r2⋯②由①②得:ω=,量m1+m2不,二者距离L 不,角速度ω不.故B 正确.2,ω、 L 、 m1均不,△m 增大, r2增大,即体C、由②得:ω r2=大星体周运迹半径大.由v= ωr2得速度 v 也增大.故 C、 D .故: B.【评论】:此题是双星问题,要抓住双星系统的条件:角速度与周期同样,律采纳隔绝法进行研究.运用牛顿第二定5.( 6 分)以下图, M 是小型理想变压器,原、副线圈匝数之比n1:n2=10 :1,接线柱b 接正弦交变电源,电压u=311sin 100 πt( V ).变压器右边部分为火警系统原理图,此中为半导体热敏资料制成的传感器,其电阻随温度高升而减小;R1为定值电阻.以下说法正确的是()a、R2A .电压表 V 1的示数为31.1VB .变压器副线圈中电流的频次为25HzC.当 R2所在处出现火警时,电压表V 2的示数变小,电流表D .当 R2所在处出现火警时,变压器原线圈的输入功率变小A 的示数变大【考点】:变压器的结构和原理.【专题】:沟通电专题.【剖析】:输出电压是由输入电压和匝数比决定的,输入的功率的大小是由输出功率的大小决定的,电压与匝数程正比,电流与匝数成反比,依据理想变压器的原理剖析即可.【分析】:解: A 、由沟通表的表达式可知,输入的电压为U=V=220V,变压器的电压与匝数成正比,由此可得副线圈的电压为22V ,故 A 错误;B、变压器副线圈中电流的频次等于负线圈的频次为f===50Hz ,故 B 错误;C、当出现火警时,温度高升,电阻R2减小, V 1不变,副线圈的电流变大,所以要增大, R2电压减小,电压表V 2的示数变小,副线圈的电流变大,匝数不变,故大,故 C 正确;D、由 C 的剖析可知, P=UI 增大,输入功率等于输出功率也增大,故 D 错误.R1的电压A 示数变应选: C【评论】:此题主要观察变压器的知识,器变压原理、功率等问题完全理解.要能对变压器的最大值、有效值、刹时价以及变压6.( 6 分)如图甲所示,在绝缘水平面上方的MM ′和 PP′范围内有方向水平向右的电场,电场强度大小沿电场线方向的变化关系如图乙所示.一质量为m、带电荷量为﹣q 的小物块(可视为点电荷)从水平面上的 A 点以初速度v0向右运动,抵达 B 点时速度恰巧为零.若滑块与水平面之间的动摩擦因数为μ,A 、B 两点间的距离为l,重力加快度为g.则以下判断正确的是()A .小物块在运动过程中所遇到的电场力向来小于滑动摩擦力B .小物块在运动过程中的中间时辰,速度大小大于C. A 、B 两点间的电势差为D .此过程中产生的内能为mv02【考点】:电势差与电场强度的关系.【专题】:电场力与电势的性质专题.【剖析】:依据电场力的变化,联合滑块速度减小,判断出电场力和滑动摩擦力的关系;结合速度时间图线,抓住滑块做加快度渐渐减小的减速运动得出中间时辰的刹时速度;依据动能定理求出 A 、B 两点间的电势差,联合能量守恒判断内能与动能减小量的关系【分析】:解: A 、滑块所受的电场力水平向右,摩擦力水平向左,由图象知,电场强度逐渐增大,电场力渐渐增大,滑块做减速运动,可知电场力向来小于滑动摩擦力.故 A 正确.B、因为电场力渐渐增大,所以小滑块做加快度渐渐减小的减速运动,依据速度时间图线可知,若为匀变速直线运动,中间时辰的刹时速度等于,从图中可知,中间时辰的刹时速度小于.故 B 错误.C、依据动能定理得,qU ﹣μmgl=0 ﹣mv,解得A、B点间的电势差U=m.故 C 正确.D、依据能量守恒知,电势能减小、动能减小,所有转变成内能,则产生的内能大于mv.故D错误.应选:AC【评论】:此题综合观察了牛顿第二定律、动能定理和能量守恒,综合性较强,对学生的能力要求较高,关于 B 选项,经过速度时间图线剖析判断比较直观简短.7.( 6 分) CD、 EF 是两条水平搁置的阻值可忽视的平行金属导轨,导轨间距为L ,在水平导轨的左边存在磁感觉强度方向垂直导轨平面向上的匀强磁场,磁感觉强度大小为B,磁场地区的长度为d,以下图.导轨的右端接有一电阻R,左端与一曲折的圆滑轨道光滑连结.将一阻值也为R 的导体棒从曲折轨道上h 高处由静止开释,导体棒最后恰巧停在磁场的右边界处.已知导体棒与水平导轨接触优秀,且动摩擦因数为μ,则以下说法中正确的选项是()A .电阻 R 的最大电流为B .流过电阻R 的电荷量为C.整个电路中产生的焦耳热为mghD .电阻 R 中产生的焦耳热为mg( h﹣μd)【考点】:导体切割磁感线时的感觉电动势;焦耳定律.【专题】:电磁感觉与电路联合.【剖析】:金属棒在曲折轨道下滑时,只有重力做功,机械能守恒,由机械能守恒定律或动能定理能够求出金属棒抵达水平面时的速度,由E=BLv 求出感觉电动势,而后求出感觉电流;由 q=能够求出感觉电荷量;战胜安培力做功转变成焦耳热,由动能定理(或能量守恒定律)能够求出战胜安培力做功,获得导体棒产生的焦耳热.mgh=mv 2,【分析】:解: A 、金属棒下滑过程中,机械能守恒,由机械能守恒定律得:金属棒抵达水平面时的速度v=,金属棒抵达水平面后进入磁场遇到向左的安培力做减速运动,则刚抵达水平面时的速度最大,所以最大感觉电动势为E=BLv ,最大的感觉电流为I==,故 A 错误;B、经过金属棒的电荷量q==,故 B 正确;由动能定理得:mgh﹣ W B﹣μmgd=0﹣ 0,则战胜安培力做功:C、金属棒在整个运动过程中,W B=mgh ﹣μmgd,故 C 错误;D、战胜安培力做功转变成焦耳热,电阻与导体棒电阻相等,经过它们的电流相等,则金属棒产生的焦耳热:Q R= Q= W B=(mgh﹣μmgd),故D正确.应选: BD【评论】:此题重点要娴熟推导出感觉电荷量的表达式q=,这是一个经验公式,常常用到,要在理解的基础上记着,波及到能量时优先考虑动能定理.8.( 6 分)以下图,在竖直平面内固定有两个很凑近的齐心圆轨道, A 、 B 分别为最高点和最低点(图中未标出),外圆圆滑内圆粗拙.一质量为 m=0.2kg 的小球从轨道的最低点以水平向右的初速度 v0开始运动,球的直径略小于两圆间距,球运动的轨道半径 R=0.5m,重力加快度 g 取 10m/s2,不计空气阻力,设小球过最低点 B 时重力势能为零,以下说法中正确的选项是()A .若小球运动到最高点 A 时速度为 0,则小球机械能必定不守恒B .若小球第一次运动到最高点时速度大小为0,则 v0必定等于 2m/sC.若要小球不挤压内轨,则 v0必定不小于 5m/sD .若小球开始运动时初动能为 1.6 J,则足够长时间后小球的机械能为 1 J【考点】:机械能守恒定律;向心力.【专题】:机械能守恒定律应用专题.【剖析】:内圆粗拙,小球与内圆接触时要遇到摩擦力作用,要战胜摩擦力做功,机械能不守恒;外圆圆滑,小球与外圆接触时不受摩擦力作用,只有重力做功,机械能守恒,应用牛顿第二定律与机械能守恒定律剖析答题.【分析】:解:A 、若小球运动到最高点时遇到为0,则小球在运动过程中必定与内圆接触,遇到摩擦力作用,要战胜摩擦力做功,机械能不守恒,故 A 正确;B、假如内圆圆滑,小球在运动过程中不受摩擦力,小球在运动过程中机械能守恒,假如小球运动到最高点时速度为0,由机械能守恒定律得:mv02=mg?2R,小球在最低点时的速度,因为内圆粗拙,小球在运动过程中要战胜摩擦力做功,则小球在最低点时的速度应大于2m/s,故 B 错误;C、小球假如不挤压内轨,则小球抵达最高点速度最小时,小球的重力供给向心力,由牛顿第二定律得: mg=m,因为小球不挤压内轨,则小球在整个运动过程中不受摩擦力作用,只有重力做功,机械能守恒,从最低点到最高点过程中,由机械能守恒定律得:225m/s,故 C mv 0 =mv +mg?2R,解得: v0=5m/s,则小球要不挤压内轨,速度应大于等于正确;D、依据得小球的初速度为< 5m/s,则小球在运动过程中要与内轨接触,要战胜摩擦力做功,机械能减少,最后小球将在轨道的下半圆内做来去运动,抵达与圆心同高地点处速度为零,则小球的最后机械能为:E=mgR=0.2 ×10×0.5=1J,故 D 正确;应选: ACD .【评论】:此题综合观察了动能定理、牛顿第二定律和机械能守恒定律,综合性较强,是理清运动过程,抓住临界状态,运用适合的规律进行求解.重点三、非选择题:包含必考题和选考题两部分.第9~第12 题为必考题,每个试题考生都必须作答.第13~第 18 题为选考题,考生依据要求作答.(一)必考题9.( 6 分)用图1 的实验装置研究“加快度与合外力的关系”.(1)实验中,小车会遇到摩擦阻力的作用,可使木板适合倾斜来均衡摩擦力,则下边操作正确的选项是 BA.不挂钩码,松开没有纸带的小车,能够自由下滑即可(2)该小组同学实验时先正确均衡摩擦力,并利用钩码和小车之间连结的力传感器测出细线上的拉力,改变钩码的个数,确立加快度 a 与细线上拉力 F 的关系,图 2 中图象中能正确表示该同学实验结果的是A .(3)在上述实验中打点计时器使用的沟通电频次为50Hz ,某次实验中一段纸带的打点记录如图 3 所示,若小车的质量为 1 千克,则该次实验中钩码质量为0.75千克(g取10m/s2).【考点】:研究加快度与物体质量、物体受力的关系.【专题】:实验题.【剖析】:均衡摩擦力时,不挂钩码,轻推拖着纸带的小车,小车能够做匀速直线运动,则摩擦力获得均衡.若摩擦力获得均衡,则a﹣ F 图线过原点,因为拉力用传感器测出,不需要知足钩码的质量远远大于小车的质量,图线不会出现曲折.依据连续相等时间内的位移之差是一恒量,运用逐差法求出小车的加快度.【分析】:解:(1)均衡摩擦力时,使重力沿斜面方向的分力等于摩擦力,不挂钩码,轻推拖着纸带的小车,小车能够做匀速直线运动,则摩擦力获得均衡,故ACD 错误, B 正确.应选: B.(2)因为拉力是由传感器测出,已经均衡了摩擦力,则加快度与拉力的关系图线是过原点的倾斜直线,即加快度与拉力成正比.应选:A .(3)依据△x=aT 2,运用逐差法得,a==22.m/s =7.50m/s据 F=ma=7.5 ×1N=7.5N所以: M=Kg=0.75Kg故答案为:( 1) B,( 2) A,( 3)0.75.【评论】:解决此题的重点掌握均衡摩擦力的方法,以及掌握纸带的办理方法,会经过纸带求解刹时速度和加快度.10.( 9 分)某电压表 V ,量程 3V ,内阻约为 2kΩ,为了检测其表盘读数能否正确,并测定其内阻的正确阻值,实验室供给的器械以下:A 、标准电压表V 1,量程 6V ,内阻约为7.0k ΩB、标准电压表V 2,量程 3V ,内阻约为 3.5k ΩC、定值电阻R1=5k ΩD、滑动变阻器R2,最大阻值100Ω,额定电流 1.5AE、电源 E、电动势6V ,内阻 0.5ΩF、开关 S,导线若干.①若要检测 V 表盘读数能否正确,请在甲图中选择所需要的器械连结成实验所需要的电路;② 某电压表的读数如乙图所示,则其测得的电压为 2.80 V ;③若 V 表表盘读数正确,现要测定其内阻的正确阻值,请将丙图连结成实验所需要的电路;④ 假如测得电压表V 的读数为 U ,电压表 V 1的读数为 U1,则被测电压表V 内阻的表达式为 Rv=.【考点】:伏安法测电阻.【专题】:实验题.【剖析】:①为了检测 V 表能否正确,应将正确电表与之并联;② 由最大批程可得出电压表的最小分度,则可得出电压表读数;③ 电压表自己能显示电压值,故只要设计电路能测出电流值即可求得内阻;④ 依据电路图及串并联电路的规律可求得电压表的示数.【分析】:解:①由题意可知,电压表 V 量程为 3V ,只要将 V2与之并联,即可得出其示数能否正确;故实物图如右图;②量程为 3V ,则最小分度为0.1V ,故读数为 2.80V ;③ 为了能丈量电流,依据题意可知,已知条件中没有电流表,故要借助定值电阻;只要将电压表 V 与定值电阻串连,再与V2 并联,即可由串并联电路规律求出V 表的示数;同时因 R2阻值太小,没法起到有效的保护作用,只好采纳分压接法;原理图以下;④并联部分总电压为 U1 ,则 R1 两头电压为 U 1﹣U ;则电流为: I=;电压表内阻为:R V = =;故答案为:①以以下图;② 2.80;③以以下图;④;才能找到正确合【评论】:此题观察伏安法测电阻的应用,注意剖析题意,明的确验原理,理的实验电路及数据办理方法.11.(15 分)以下图,一对圆滑的平行金属导轨固定在同一水平面内,导轨间距l=1m ,左端接有阻值R=0.9 Ω的电阻.一质量m=1kg 、电阻 r=0.1Ω的金属棒MN 搁置在导轨上,整个装置置于竖直向上的匀强磁场中,磁场的磁感觉强度B=1T .金属棒在水平向右的外力2力,金属棒持续运动一段距离后停下来,已知撤去外力前后回路中产生的焦耳热之比Q1:Q2=5:1.导轨足够长且电阻不计,金属棒在运动过程中一直与导轨垂直且两头与导轨保持优秀接触.求:(1)金属棒在匀加快运动过程中,经过电阻R 的电荷量q;(2)撤去外力后导体棒战胜磁场力做的功W ;(3)外力做的功 W F.【考点】:导体切割磁感线时的感觉电动势;焦耳定律.【专题】:电磁感觉与电路联合.【剖析】:( 1)依据运动学公式求出时间,依据电量的公式求解(2)撤去外力后棒在安培力作用下做减速运动,安培力做负功先将棒的动能转变成电能,再经过电流做功将电能转变成内能,所以焦耳热等于棒的动能减少.(3)依据动能定理求解【分析】:解:( 1)棒匀加快运动所用时间为t,有:2 at =xt===2s依据法拉第电磁感觉定律和闭合电路的欧姆定律求电路中产生的均匀电流为:==依据电流定义式有:q= t====10C(2)撤去外力前棒做匀加快运动依据速度公式末速为:v=at=2 ×5=10m/s撤去外力后棒在安培力作用下做减速运动,安培力做负功先将棒的动能转变成电能,再经过电流做功将电能转变成内能,所以焦耳热等于棒的动能减少.2=50JQ2=△E K= mv =(3)依据题意在撤去外力前的焦耳热为:Q1=5Q2=250J撤去外力前拉力做正功、安培力做负功(其绝对值等于焦耳热Q1)、重力不做功共同使棒的动能增大,依据动能定理有:△E K=W F﹣Q1则: W F=△E K+Q1=300J答:( 1)棒在匀加快运动过程中,经过电阻R 的电荷量是10C;(2)撤去外力后回路中产生的焦耳热是50J;(3)外力做的功是 300 J【评论】:解决该题重点要剖析物体的运动状况,清楚运动过程中不一样形式的能量的转变,知道运用动能定理求解变力做功.12.( 17 分)以下图,在平面直角坐标系xOy 的第二象限内有场强盛小为E、沿 x 轴正方向的匀强电场,在第一象限内有一磁感觉强度为 B 的圆形匀强磁场地区(图中未画出),磁场方向垂直xOy 平面,圆形匀强磁场地区的界限与x 轴相切于点P.两个质子(质子质量m,电荷量 q,不计重力) a、b 以相等的速率沿不一样方向从P 点同时射入磁场区,此中 a 的速度方向沿 y 轴正方向, b 的速度方向与x 轴正方向的夹角θ=30°,a、b经过磁场后都垂直于y 轴进入第二象限, a 经过 y 轴上的点Q,OP=2OQ=2L ,且 a、b 经过 y 轴的时间间隔为t 0.求:(1)质子在磁场中运动速度 v 的大小;(2)质子 b 在电场中运动离 y 轴的最远距离 x;(3)质子 a 从开始运动到最后走开磁场所需的时间t;(4)若只将第二象限内的匀强电场方向变成沿y 轴负方向,仍使 a、b 以本来的速度射入磁场区,求a、b 经过 x 轴上的两点间的距离△x.【考点】:带电粒子在匀强磁场中的运动;带电粒子在匀强电场中的运动.【专题】:带电粒子在复合场中的运动专题.【剖析】:( 1)两个质子在磁场中都做匀速圆周运动,画出它们的运动轨迹,确立出轨迹对应的圆心角,研究 b 质子的运动时间与周期的关系,求得磁感觉强度B.再研究 a 的轨迹半径,求出速度 v 的大小.(2)质子 b 进入电场后做匀减速直线运动,由动能定理求在电场中运动离y 轴的最远距离x.(3)依据轨迹对应的圆心角求解质子 a 从开始运动到最后走开磁场所需的时间t.(4)若只将第二象限内的匀强电场方向变成沿y 轴负方向,质子进入电场后做类平抛运动,由牛顿第二定律和运动学公式研究两个分运动的规律,求出a、 b 经过 x 轴上的两点间的距离△x.【分析】:解:( 1)两质子的运动轨迹如图,在磁场中的运动周期为T=a 质子在磁场中转过90°圆心角,运动时间为t a=b 质子在磁场中转过150°圆心角,运动时间为t b=由题意有: t0=t b﹣ t a=可得B=由 a 的轨迹可知 a 质子在磁场中的运动半径R=L由 qvB=m得 v==(2)质子在电场中,由动能定理得:﹣qEx=0 ﹣解得 x=(3)由上知,质子 a 从开始运动到最后走开磁场所需的时间t=t a=由 t0=,得 t=(4)质子进入电场后做类平抛运动,则有竖直分位移大小分别为h a b=L , h =R+Rcos30°=L由 h a=, h b=, x a=v a t a1, x b=v b t b1,又 a=故 a、 b 经过 x 轴上的两点间的距离△x=x b﹣ x a=(﹣ 1)答:(1)质子在磁场中运动速度v 的大小为;(2)质子 b 在电场中运动离y 轴的最远距离x 为;(3)质子 a 从开始运动到最后走开磁场所需的时间t 为;(4) a、 b 经过 x 轴上的两点间的距离为(﹣ 1).【评论】:此题中粒子先进入磁场做匀速圆周运动,后在电场中做类平抛运动,要注意两个轨迹的连结点,画出运动轨迹,由几何关系定圆心角是重点,而后依据运动学公式和牛顿第二定律以及几何关系列式求解.(二)选考题,请考生从以下三个模块中任选一模块作答【物理-选修 3-3】( 15 分)13.( 6 分)以下说法正确的选项是()A .布朗运动是指液体分子与悬浮在液体中的固体颗粒共同运动B .理想气体压强取决于单位体积内分子数和分子的均匀动能C.做功和热传达在改变物体内能上是等效的,所以从结果上不可以划分是哪一种方式改变了物体的内能D .分子间表现为引力时,距离越小,分子势能越大E.热力学第二定律表示,所有波及到热现象的物理过程都拥有方向性【考点】:热力学第二定律;分子的热运动;温度是分子均匀动能的标记.【剖析】:布朗运动是指悬浮在液体中的固体颗粒运动,气体压强取决于单位体积内分子数和分子的均匀动能,做功和热传达在改变物体内能上是等效的;分子之间的距离是均衡地点的距离时,分子势能最小;所有波及到热现象的物理过程都拥有方向性.【分析】:解: A 、布朗运动是指悬浮在液体中的固体颗粒运动,间接反应了液体分子的无规则运动, A 错误;B、气体压强取决于单位体积内分子数和分子的均匀动能, B 正确;C、做功和热传达在改变物体内能上是等效的,所以从结果上不可以划分是哪一种方式改变了物体的内能, C 正确;D、分子间表现为引力时,距离越小,分子力做正功,分子势能减小, D 错误;E、热力学第二定律表示,所有波及到热现象的物理过程都拥有方向性. E 正确;应选: BCE【评论】:该题观察布朗运动的本质,气体压强的微观解说,改变内能的方式、分子势能和热力学第二定律内容等,都是一些记忆性是知识点的内容,多加累积即可.14.( 9 分)用活塞将必定质量的一个大气压的理想气体关闭在水平固定搁置的汽缸内,开始时气体体积为V0,温度为 27℃.在活塞上施加压力,将气体体积压缩到本来的,温度高升到 47℃.设大气压5P0=1.0×10 Pa,活塞与汽缸壁摩擦不计.求:(i )此时气体的压强;(ii )保持温度不变,迟缓减小施加在活塞上的压力,负气体体积恢复到V 0时气体的压强(结果保存三位有效数字)【考点】:理想气体的状态方程.【专题】:理想气体状态方程专题.【剖析】: 1、依据气体状态方程和已知的变化量去求解其余的物理量.2、气体做等温变化,由玻意耳定律列出等式求解.5【分析】:解:(ⅰ)初状态:V 0,P0=1.0×10 Pa, T1 =273+27=300K末状态:,P2=?, T2=273+47=320K由理想气体状态方程:。
高中英语真题:八校联盟2015届高三第二次联考试卷本试卷分为第I卷(选择题)和第II卷(非选择题)两部分,满分120分,考试用时100分钟。
注意事项:1. 答卷前,考生务必在答题卡上相应的位置准确填写自己的姓名、准考证号,并将条形码粘贴在指定位置。
2.选择题选出答案后,用2B铅笔将答题卡上对应题目的答案标号按要求涂黑。
如需改动,用橡皮擦干净后,再选涂其它答案标号。
非选择题用签字笔直接答在答题卡上对应的答题区域内。
第Ⅰ卷第一部分阅读理解(共20小题;每小题2分,满分40分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。
(共15小题;每小题2分,满分30分)AAs any plane passenger will confirm, a crying baby is almost i mpossible to ignore, no matter how hard you try. Now scientists believe they may have worked out why. A baby’s cry pulls a t the heartstrings(扣人心弦) in a way while other cries don’t, researchers found. Researchers found that a baby’s cry can trigger unique emoti onal responses in the brain, making it impossible for us to ign ore them---whether we are parents or not. Other types of cries, including calls of animals in great pain, fail to get the same response---suggesting the brain is programmed to respond specifically to a baby’s cry.A team of scientists scanned the brains of 28 men and wom en as they listened to a variety of calls and cries. After 100 mil liseconds two parts of the brain that respond to emotion lit up. Their response to a baby’s cry was particularly strong. The re sponse was seen in both men and women—even if they had no children.Researcher Dr Christine Parsons said, “You might read that men should just notice a baby and step over it and not see it, but it’s not true. There is a special processing in men and wo men, which makes sense from an evolutionary(演变的) view that both men and women would be responding to th ese cries.” The study was in people who were not parents, yet they are all responding at 100ms to these particular cries, sothis might be a fundamental response present in all of us rega rdless of parental status.Researcher Katie Young said it may take a bit longer for som eone to recognize their own child’s cries because they need t o do more “fine-grained analysis”. The team had previously found that our rea ctions speed up when we hear a baby crying. Adults performe d better on computer games when they heard the sound of a baby crying than after they heard recordings of adults crying.1. A baby’s cry is difficult to ignore because it _____.A. keeps on cryingB. cries harder than adultsC. causes people great painD. makes people feel strong emotions2. The underlined word “trigger” in Paragraph 2 probably mea ns “_____”A. removeB. avoidC. causeD. Cure3. What may Christine Parsons agree to?A. Almost everyone makes certain response to a baby’s crie s.B. A crying baby makes no sense to people without children.C. Men pay less attention to a crying baby than women.D. Parents can hardly recognize their own babies’ cry.4. Computer games are mentioned in the text to show _____.A. players’ different reactions to a crying babyB. baby’s crying contributes to quicker reactionsC. the influence of baby’s and adult’s crying on performanceD. it’s hard to keep one’s concentration with a crying baby n earbyBNicola Tesla was born on 10th July 1856 in Croatia, a country in Eastern Europe. From a very young age, Tesla was interes ted in electricity. In 1881, one of the first telephone exchanges opened in . Tesla moved there and got a job. It was here that Tesla first thought of the idea of the alternating current(AC交流电).In 1884, Tesla moved to and worked for Thomas Edison, but only for less than a year. Tesla was sure his AC motor was th e best way to capture(获取) and transport the power of electricity. However, Edison th ought his way of using direct current(DC) was better and cons idered AC unsafe. But soon the scientific community accepted AC was more powerful than DC and it was proved safe.In 1895, Tesla designed the first water power plant using theenergy of the . And he did it using the AC motor. After the suc cess of AC, Tesla became well known. He travelled and spok e to many scientists about his inventions and ideas. He built a large laboratory where he did amazing things with lights and electricity. However, it burned down not long after it was built. As Tesla got older, he continued to come up with new ideas a nd theories. But he was less successful and famous. Many pe ople didn’t recognize that particular inventions were really Tes la’s ideas.Tesla gave speeches about creating electrical power from the earth’s atmosphere. He also talked about ways that wireless electricity and communication could power things all over the world! But to the people of his time, these ideas sounded craz y. However, some of his ideas have now been supported by modern research and technology.Tesla’s last years were lonely and sad. He received many aw ards, but received very little money. When he died in 1943, he was no longer famous and felt forgotten. Today, not many pe ople know the name of Nicola Tesla but his inventions and ide as affect our lives every day!5. Why did Tesla stop working for Edison?A. Tesla was badly paid there.B. Tesla wanted to move back to Europe.C. They had very different characters.D. They had some di sagreements.6. In his later years, Tesla_____.A. was misunderstood and doubtedB. lived a colorful life .C. was unable to think out new ideasD. rose to fame as an award-winning inventor7. We can learn from the text that Tesla_____.A. became famous as an assistant to EdisonB. was way ah ead of modern technologyC. had great interest in travellingD. was not good at sp eeches8. Which of the following can be the best title for the text?A. Nicola Tesla, a challenger for difficultiesB. Nicola Tesla, a dreamer in scienceC. Nicola Tesla, a forgotten inventorD. Nicola Tesla, a s trange scientistCThere was a strange father, John Blake, from , who named hi s children after a computer software term. He told the local newspaper the US traditional way of adding“Junior”or“II”after a boy’s name was too common. So, when his son was born last week, he decided on the name John Blake 2.0, as if he were a soft ware programmer.Mr. Blake admitted that it took months to persuade his wife, J amie, to accept the idea. Mrs. Blake said she asked several fri ends whether they could accept this name or not. “All the men ,” she said, “felt the name was cool.” However,her women friends did not think so.“I think the women end up like it,”she said.Mr. Blake told the local newspaper he got the idea from a film called The Legend of 1900,in which an abandoned baby is given the name 1900 to reme mber the year of its birth. “I thought that if they can do it ,why can’t we?”he said. After little John version 2.0 was born, Mr. B lake even sent a celebratory e-mail to the family and friends, which was designed to look as i f he and his wife had created a new software.“I wrote things li ke there are a lot of new features from Version 1.0 with additi onal features from Jamie,”he said. And he has already planne d for his son’s future. “If he has a child, he could name it 3.0,”he said.9.From the passage we know that “John Blake 2.0”_____.A. is also the name of a computerB. shows the traditional way of American baby namingC. has the same meaning as“John Blake Junior”D. tells something about the hope the father places on his ba by10.What do the name of “1900”and“Jon Version 2.0”have in c ommon?A. They are both connected with computer.B. They are both untraditional.C. They both tell about the births.D. They are to be equally popular.11. Which of the following is true according to the passage?A. All Mrs. Blake’s friends support their idea.B. The name“1900”is also a computer software term.C. When Mr. Blake had a second child, he would name it “Jo hn Version 3.0”.D. Mrs. Blake didn’t agree to name her son after a computer software term at the very beginning.DWith the development of society, many people are coming u nder the umbrella of fatness. Not just adults,but even children are getting overweight. Today some of the n ewborn babies are also born fat. It has been proved that the p eople living in the western developed countries are more likel y to become overweight. There are a number of causes behin d this.The people in the developed countries including the almost e njoy all the comforts of life. Almost all the things in the lives of the people living in these countries are at their finger tips. A v ery limited amount of movement and physical effort is require d to do any kind of job. Because of the fact that these countrie s are quite developed,most of the jobs that the people take up are desk jobs. So the lifestyle of them is just around the office desk.Most of the western developed countries are cold ones. Natur e demands that people eat the kinds of food so as to make th em stand the coldness. Therefore,wine,fatty dairy products,bread,junk food,and red meat become important diets in these countries. However,the blame cannot be entirely put on the unhealthy eating habit s of the people. Technology allows them to import almost all the food products that they do not grow. Although some health y foods are grown in the countries nowadays,the quantity is very limited. It is not enough to meet the dema nd. So when they are not available and fatty foods are cheape r, people prefer to go for the eating habit that they have alway s been following.12. According to Paragraph 2,most people in the developed countries do ______.A. office jobsB. management jobsC. physical jobsD. tiring jobs13. According to the text, the reason why people in the wester n developed countries have to eat some fatty foods is that ___ _.A. the unhealthy eating habit is not importantB. fatty foods cost less to buy and healthy foods are in shorta geC. healthy foods are in shortage and fatty foods are abundant.D. they can’t put the blame on their eating habits.14. The purpose of the author in writing the text is to ________ _.A. warn us of our bad eating habits in the developed countriesB. remind us of the relation between food and weight gainC. inform us of the causes of weight gain in the developed co untriesD. tell us that fatness in the developed countries is natural15. People in the western developed countries often ________ __.A. carry umbrellas with themB. blame the fatness on the weat herC. grow a lot of healthy foods in their countriesD. eat to prote ct themselves from the coldness第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,并在答题卡上将该项涂黑。
绝密★启用前2015年第三次全国大联考(广东版)英语试题本试卷共有三大题,满分135分。
考试用时120分钟。
注意事项:1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名和考生号、试室号、座位号填写在答题卡上,并用2B铅笔在答题卡上的相应位置填涂考生号。
2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目选项的答案信息点涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷上。
3.非选择题必须用黑色字迹钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液。
不按以上要求作答的答案无效。
I . 语言知识及应用(共两节,满分45分)第一节完形填空(共15小题;每小题2分,满分30分)阅读下面短文,掌握其大意,然后从1~15各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。
As a general rule, all forms of activity lead to boredom when they are performed on a routine basis. As a matter of fact, we can see this principle at 1 in people of all ages. For example, on Christmas morning, children are 2 about playing with their new toys. But their interest soon 3 off and by January those same toys can be found put 4 in the basement. The world is full of 5 stamp albums and unfinished models, each standing as a monument to someone’s passing 6 . When parents bring home a pet, their child 7 bathes it and brushes its fur. Within a short time, 8 , the burden of caring the animal is handed over to the 9 . Adolescent enter high school with great excitement but soon looking forward to graduation. The same is 10 of the young adults going to the college. And then, how many adults, who complain about the long drives to work, 11 drove for hours at a time when they firstobtained their drivers’12 ? Before people retire, they usually plan to do a lot of great things, which never had time while working. But soon after 13 , the golfing, the fishing, the reading and all of the other pastimes become as 14 as the jobs they left. And, like the child in January, they go searching for new 15 .1. A. school B. home C. work D. night2. A. curious B. optimistic C. anxious D. excited3. A. cuts B. leaves C. wears D. takes4. A. away B. off C. out D. up5. A. newly-designed B. half- filled C. well-organized D. colorfully-printed6. A. friendship B. job C. time D. interest7. A. worriedly B. thankfully C. happily D. hurriedly8. A. however B. therefore C. besides D. thus9. A. friends B. parents C. relatives D. teachers10. A. aware B. afraid C. tired D. true11. A. carefully B. nervously C. bravely D. eagerly12. A. work B. position C. licenses D. certificate13. A. retirement B. resign C. assignment D. graduation14. A. frustrating B. boring C. interesting D. annoying15. A. surroundings B. friends C. toys D. pets第二节语法填空(共10小题;每小题1.5分,满分15分)阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或用括号中词语的正确形式填空,并将答案填写在答题卡标号为16~25的位置上。
2015年下学期高三第三次考试英语试题题量:150分时量:120分钟命题:高三英语备课组第一部分听力(共两节,满分30分)第一节(共5个小题:每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What does the man want?A. Juice.B. Milk.C. Beer.2. What happened to the man’s computer?A. It got a virus.B. The screen broke.C. The hard drive crashed.3. What does the woman like most at the restaurant?A. The bread.B. The pasta.C. The salads.4. What did the woman lose yesterday?A. A button.B. A new skirt.C. A new shirt.5. How does the woman feel in hot weather?A. Sad.B. Calm.C. Angry.第二节(共15小题:每小题1.5分,满分22.5分)听下面5段对话或对白,每段对话或对白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置,听每段对话或独白前,你将有时间阅读各个小题。
每小题5秒钟;听完后,各小题给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料,回答第6、7题。
6. Why was the actress in court?A. She drove too fast.B. She drove without a license.C. She stole something from a supermarket.7. What is the third story about?A. A bull.B. An actor.C. An actress’ daughter.听第7段材料,回答第8、9题。
河北衡水2015届高三第三次联考英语试题本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,总分150分,考试时间120分钟。
第Ⅰ卷(三部分,共100分)第一部分:听力(共两节,满分30分)第一节:(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.Where does the man want to go?A.A bank.B.A park.C.A bus stop.2.When is Paul's birthday party?A.July 11.B.July 12.C.July 13.3.Where is the man going to spend his Christmas?A.In his brother's.B.In his mother's.C.In his sister's.4.How are the woman-s parents?A.They're ill now. B.They're seldom ill.C.They're very healthy.5.What-s the probable relationship between the speakers?A.Classmates.B.A couple.C.Colleagues.第二节:(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题,从题中所给的A.B.C三个选项中选出最佳选项,并标在试卷的相应位置。
听每段对话前,你将有时间阅读各个小题,听完后每小题将给出5秒钟的作答时间.每段对话读两遍。
听第6段材料,回答第6~7题。
6.What does David like to do when he is online?A.To communicate with his friends.B.To look for something interesting.C.To look up some useful information.7.What does the woman do?A.She is a worker.B.She is a researcher.C.She is a teacher.听第7段材料,回答第8~10题。
2015年全国第三次大联考试题(浙江卷)英语试卷选择题部分(共80分)第一部分:英语知识运用(共两节,满分30分)第一节:单项填空(共20小题;每小题0.5分,满分1 0分)从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题纸上将该选项标号涂黑。
1. --I failed in the college entrance exam. Sorry to disappoint you.--_________? You’ve studied so hard.A. So whatB. Why notC. Who knowsD. How come2. --Have you passed ______ P.E. test?--I have tried third times, and the teacher will allow me to have _____ forth try.A. the; aB. a; theC. the; 不填D. the; the3. ________to caring for an Ebola(埃博拉) patient, the nurse who found herself also infected, feeling hopeless.A. DevotingB. DevotedC. Having devotedD. To devote4. --She looks very happy. She ________have passed the exam.--I think so. It’s not difficult after all.A. shouldB. couldC. mightD. must5. ____ the small cottage in the countryside, they have a large apartment in the city too.A. Apart fromB. Rather thanC. Because ofD. Except for6. --How do you like the film Frozen?--Great! Never before _________ a better one.A. had I seenB. I have seenC. have I seenD. I had seen7. ____ I saw him, I knew he was the man the police were looking for.A. PreviouslyB. ImmediatelyC. AccuratelyD. Especially8. --Look! What are the Greens busy doing?-- Mrs Green is cutting the grass; _________, her husband is planting the roses.A. ratherB. insteadC. thusD. meanwhile9. The computer system_________ suddenly while he was watching news on the Internet.A. broke outB. broke inC. broke upD. broke down10. I have been waiting for a bus for so long. If only I _______ a book with me!A. broughtB. would bringC. had broughtD. bring11. ______that the road was under construction, the man had to drive back.A. Being remindedB. To be remindedC. Having been remindedD. Having reminded12. English is a language shared by several different cultures, ________ uses it in different ways.A. all of whomB. each of themC. all of themD. each of which13. Local workers are going on a strike for the salaries here are low ________ the rates elsewhere.A. withB. againstC. byD. beside14. I’ve already read an excellent book of Moyan’s, _________ you can’t miss.A. thatB. whatC. oneD. who15. When _____ to hand in his Iphone, Tonny told his teacher that he had left it home.A. being askedB. askedC. having askedD. to be asked16. It was ______ that I didn’t want to go out for a walk.A. a so cold dayB. such cold a dayC. too cold a dayD. so cold a day17. I’d appreciate ______if you would give me some advice on how to learn English well.A. thatB. itC. thisD. how18. Mike thinks it won’t be long ______he is ready for his new job.A. whenB. afterC. beforeD. since19. --Have you ever seen the TV program Running Man?--Yes. It’s the best program______ I have seen in the past few months.A. whichB. whereC. whenD. that20. -- The scarf is nice, but the price is a little bit high.--_______, but if you want high quality scarfs, you have to pay more.A. No wonderB. No doubtC. No offenceD. No problem第二节:完形填空(共20小题;每小题1分:满分20分)阅读下面短文,掌握其大意,然后从21-40各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题纸上将该选项标号涂黑。
金榜教育·2015届安徽省示范高中高三第三次联考英语参考答案参考答案:听力:1-20 BCACC CABAA ACBCC ACABB单选:21-35 BDACC DCABA CCBDB完形填空:36-55 BACAC BADBB ACBAB DDABD阅读理解:56-75 CBCDC ABBBC CDBAD DCBA D任务型阅读:76. Indicates 77. ways 78. succeed 79. pursue/chase 80. term/way81. define 82. successful 83. Eventually/Finally 84. enjoyment/happiness85. achievement作文参考:Hello, everyone!My topic today is about increasing our security awareness when travelling. As you all know, several college students is reported to have lost touch with their family when travelling. Some have been hurt both mentally and physically or even killed. Increasing our security awareness is important as well as urgent now.From my point of view, first of all, when we are outing, we should tell our family where are heading for so that our family know where to find us in emergency. Secondly, we’d better take public transport with more people; if we have to take a taxi, be sure to take a legal one. Finally, avoid aggressive behavior. When running into something emergent, be sure to keep calm. Call the police if necessary.The world is complex, and risk lies everywhere. What we can do is to keep an eye around and keep calm. May everybody be safe and happy!That’s all. Thank you for your listening.单项选择答案解析:21. B考查冠词用法。
绝密★启用前【学易大联考】2015年全国第三次大联考试题(浙江卷)英语试卷选择题部分(共80分)第一部分:英语知识运用(共两节,满分30分)第一节:单项填空(共20小题;每小题0.5分,满分1 0分)从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题纸上将该选项标号涂黑。
1. --I failed in the college entrance exam. Sorry to disappoint you.--_________? You’ve studied so hard.A. So whatB. Why notC. Who knowsD. How come2. --Have you passed ______ P.E. test?--I have tried third times, and the teacher will allow me to have _____ forth try.A. the; aB. a; theC. the; 不填D. the; the3. ________to caring for an Ebola(埃博拉) patient, the nurse who found herself also infected, feeling hopeless.A. DevotingB. DevotedC. Having devotedD. To devote4. --She looks very happy. She ________have passed the exam.--I think so. It’s not difficult after all.A. shouldB. couldC. mightD. must5. ____ the small cottage in the countryside, they have a large apartment in the city too.A. Apart fromB. Rather thanC. Because ofD. Except for6. --How do you like the film Frozen?--Great! Never before _________ a better one.A. had I seenB. I have seenC. have I seenD. I had seen7. ____ I saw him, I knew he was the man the police were looking for.A. PreviouslyB. ImmediatelyC. AccuratelyD. Especially8. --Look! What are the Greens busy doing?-- Mrs Green is cutting the grass; _________, her husband is planting the roses.A. ratherB. insteadC. thusD. meanwhile9. The computer system_________ suddenly while he was watching news on the Internet.A. broke outB. broke inC. broke upD. broke down10. I have been waiting for a bus for so long. If only I _______ a book with me!A. broughtB. would bringC. had broughtD. bring11. ______that the road was under construction, the man had to drive back.A. Being remindedB. To be remindedC. Having been remindedD. Having reminded12. English is a language shared by several different cultures, ________ uses it in different ways.A. all of whomB. each of themC. all of themD. each of which13. Local workers are going on a strike for the salaries here are low ________ the rates elsewhere.A. withB. againstC. byD. beside14. I’ve already read an excellent book of Moyan’s, _________ you can’t miss.A. thatB. whatC. oneD. who15. When _____ to hand in his Iphone, Tonny told his teacher that he had left it home.A. being askedB. askedC. having askedD. to be asked16. It was ______ that I didn’t want to go out for a walk.A. a so cold dayB. such cold a dayC. too cold a dayD. so cold a day17. I’d appreciate ______if you would give me some advice on how to learn English well.A. thatB. itC. thisD. how18. Mike thinks it won’t be long ______he is ready for his new job.A. whenB. afterC. beforeD. since19. --Have you ever seen the TV program Running Man?--Yes. It’s the best program______ I have seen in the past few months.A. whichB. whereC. whenD. that20. -- The scarf is nice, but the price is a little bit high.--_______, but if you want high quality scarfs, you have to pay more.A. No wonderB. No doubtC. No offenceD. No problem第二节:完形填空(共20小题;每小题1分:满分20分)阅读下面短文,掌握其大意,然后从21-40各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题纸上将该选项标号涂黑。
贵州省八校联盟2015届高三第三次联考英语命题学校:凯里一中本试卷分第一卷(选择题)和第二卷(非选择题)两部分,第一卷第1页至第6页,第二卷第6页至9页。
考试结束后,请将本试卷和答题卡一并交回。
满分120分,考试用时100分钟。
第一卷(选择题,共70分)注意事项:1.答题前,考生务必用黑色碳素笔将自己的姓名、准考证号、考场号、座位号在答题卡上写清楚。
2.每小题选出答案后,用2B铅笔吧答题卡上对应题目的答案标号涂黑。
如需改动,用橡皮擦干净后再选图其它答案标号。
在试卷上作答无效。
第一部分:阅读理解(共两节,满分40分)第一节(共15小题,每小题2分,共30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑AEight-year-old Cieran Kelso and Winter the dolphin have more things in common than most people and dolphins. That is because they both have prosthetic (假肢)!Winter, the star of the movie Dolphin Tale, is Cieran’s idol because they both swim with the help of prosthetic flippers.Florida’s Clearwater Marine Aquarium(水族馆), where Winter lives, usually only lets visitors swim in the dolphin tank every three weeks or so, but when its chief officer David Yates heard Cieran’s story he said he must make a swim-and-greet happen.Local tourism officials flew Cieran and his family to the aquarium from England after a year of planning. His parents had a hard time keeping the surprise a secret for so long! They toldCieran that the trip was just going to be a business trip for his father Gary, and it wasn’t until they were halfway there that flight attendants announced that the trip was actually for Cieran to meet Winter!Cieran caught a disease that cost both of his legs and most of his fingertips. He still love to play sports like soccer and gymnastics with his friends, but it’s taken him a little longer to learn how to swim.To help him catch up with his friends, Cieran’s father Gary, with the help of a prosthetic specialist, created prosthetic flippers so that Cieran could move like his idol, Winter.“His first words when he saw the film was” Winter’s disabled, just like me. It’s just been a dolphin in a film for a long time and now it’s rea l… It’s just a dream come true,” said Cary.Once in the tank he fed Winter fish and played with her for more than an hour. Cieran’s sister Layla and Winter’s “sister” Hope also joined them for a while. He said he could have swam “ for a million hours” if he was allowed to!After the swim Cieran announced he wants to work at the aquarium so that he can always look after Winter, his new best friend. “ The feeling was great and emotional to be sw imming witha dolphin. I love dolphins. But the best dolphin I’ve ever loved is Winter, he said.1.From the text, we know Winter________.A.played a leading role in Dolphin TaleB.was an idol for most kids in EnglandC.swam with visitors three times a weekD.performed a swim-and –great in the tank2. What didn’t Cieran know at first?A. He could have a business trip with his dad.B. He could swim with Winter togetherC. He would act in the movie Dolphin TaleD. He would get a new pair of prosthetic flippers3. From what Gary said, we know_________.A. Cieran showed pity for WinterB. Cieran had a dream to see a film.C. Cieran was glad to meet WinterD. Cieran found Winter a real disabled dolphin4. What is the main idea of the passage?A. A disabled boy met a dolphin with disabilityB. A boy is swimming with a dolphin alone.C. A dream of meeting a dolphin comes true.D. A boy becomes a friend of a dolphin.BCanyon Country Youth CorpsJoin the Canyon Country Youth Corps for an experience of a lifetime!A job with purpose and adventure! Work and play in the Canyon Country of the Four Corners Region!As a CCYC crewmember you will work and live outdoors with your fellow crewmembers in one of the most beautiful landscapes in the American Southwest while strengthening yourself both physically and mentally. If you are looking for a job with purpose that will leave a lasting impact on the lives of others as well as the environment, look no further! By joining CCYC as a crewmember you will make a lasting difference to the environment, you crew, and yourself. Apply now and start the adventure!CCYC 2014 Crew SchedulesCrew leader Training: March 12 Crewmember Start Day: March 19Training Weeks: March 20-31 Orientation River Trip: March 29-31Sleep and EatWhile one crew, employees will camp in tents. If tents are provided to them by CCYC, the participant will have to share with one or two more people of the same gender. Members have the choice of bringing their own tents and will not have to share. There is a $ 30 per workweek food deduction(扣除)while in the field( includes breakfast, lunch, dinner and snacks).Please be aware that CCYC tents are used tents have been donated and not always in excellent working condition.(i.e. zipper (拉链)doesn’t work well, hole in fly, etc.)Other Perks (额外收入)Crew Leaders: $ 400--$ 500 per week during sessions, depending on experience and postion. Crewmembers : Pay: $300 per weekHow to ApplyComplete the appropriate application and mail, fax, or email it.5.The text is written for those who want to____________.A.do an adventurous travel in AmericaB. find a job to protect the environmentC work for their further college educationD. get the experience of living outdoors6.If you join in CCYC, you will _______.A.have to donate a tent to itB. share you own tent with othersC be supplied with a tent to sleep inD. be required to bring your own tent7.How much will a crewmember earn per week at last?A.$550 B. $400 C. $ 300 D.$270CChildren told to go play outdoors in new nature campaignThe Wild Network aims to get schoolchildren off their computers and outdoors to experience the wonders of the wildernessA campaign is being launched to encourage children to surrender 30 minutes of screen time a day to head for the great outdoors.The newly formed Wild Network – a collaboration of nearly 400 organizations - is attempting to attract youngsters away from television and computer screen and into fields, woods and parks.Organizers say it is the UK's biggest ever campaign to reconnect children with nature and outdoor play, and claim it could help improve fitness, mental alertness and general wellbeing.A documentary film, Project Wild Thing, will be shown at more than 50 cinemas across the UK from Friday. It looks at the increasingly fragile(脆弱的) link between children and nature.Members of the network include the National Trust, RSPB, Play England and the NHS sustainable development unit.Andy Simpson, chairman of the Wild Network, said: "The tragic truth is that kids have lost touch with nature and the outdoors in just one generation."Time spent outdoors is down, roaming ranges have fallen drastically, activity levels are declining and the ability to identify common species has been lost."Suggestions of how to get more time in nature include collecting conkers, camping or snail racing, and observing autumn color on trees.From January, the network will aim to make suggestions to politicians on how government can do more to get children muddy and bright-eyed.This is not the first time the message of less screen, more play has been brought up. Children in the 1980s were entreated to do the same by the BBC TV series Why Don't You, which somewhat confusingly called on its viewers to "switch off your TV set, and go do something less boring instead".8.The Wild Network was set up in order to ________.A.monitor students’ behavior at schoolB.help students know more about scienceC.reduce students’ time spent in classroomsD.encourage students to play outdoor games9.What does the word “surrender” in paragraph two mean?A.give in B. give back C. give up D. give out10.According to Andy Simpson, nowadays kids_________.A. have little connection with natureB. live farther away from the countryC. know the name of common speciesD. prefer going camping to staying at home11.Which of the activities would NOT be encouraged by the Wild Network?A. Playing on the beachB. Exercising in the gymC. Going fishingD. Bird-watchingDLondon isn't for everyone. Some promising students ignore it as an option. However, others jump at the chance without proper consideration; student life in London is very different to campus life elsewhere.The main issue for most students in deciding whether to study in the city is their sense of howmuch it will cost to live in the capital. It must be acknowledged that rental prices are the highest in the country, and students should be prepared for this even with the extra loan on offer. If you do your homework, then that is where the extra costs end.If you keep your eye open, students discounts are everywhere and many nightclubs run students night during the week, with students unions ensuring expensive nightlife is never an issue. And if you feel like earning a bit of extra money, generally part-time work is pretty easy to come by.The transport network is good and generally affordable, especially with the Student Oyster photocard, but the density of London means most journeys are possible by foot, and 24-hours buses ensure a night out rarely requires a taxi.A final benefit of the city for students, which is seldom considered by most until they actually arri ve, is the power of London to connect people. London’s status as a world city means employers, including banks such as HSBS, media companies like BSkyB, publisher such as Penguin and every kind of business in-between, choose to locate their headquarters in London.Many of these employers provide opportunities such as networking events and interview training, which are often advertised through London universities themselves, while internships, work experience and graduate schemes are all available within the city.Of course when it comes down to personal preference, London is just one city on a long list of options, but before deciding, prospective students should try hard to find out the true reality in terms of the costs and benefits to them personally.12.S ome students don’t choose London because ________.A. London is the capital of the UKB. they have no way to get the extra loanC. they dislike doing their homeworkD. London witnesses the higher rents13. To help out with your expense in London, you can _________.A. find a flat with lower rentalB. join a lot of students unionsC. do part-time jobs in your spare timeD. stop yourself going to nightclubs14. Before getting to London, most students usually fail to notice_________A. the transport network is generally the most affordableB. so many large companies are located in LondonC. 24-hours buses can provide great convenience for themD. there live too many world-famous men and women15. Which of the following is the best title for the passage?A. Benefits of Studying in LondonB. Disadvantages of studying in LondonC.High Rental Prices in LondonD. Choices to be Avoided by students第二节(共5小题,每题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。