2011北京市东城区高三一模试卷(英语)
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北京东城区2019年⾼三⼀模英语试题与答案2019市东城区⾼三⼀模英语2019.4本试卷共10页,共120分。
考试时长100分钟。
考⽣务必将答案答在答题卡上,在试卷上作答⽆效。
考试结束后,将本试卷和答题卡⼀并交回。
第⼀部分:知识运⽤(共两节,45分)第⼀节语法填空(共10⼩题;每⼩题1.5分, 共15分)阅读下列短⽂,根据短⽂容填空。
在未给提⽰词的空⽩处仅填写⼀个..适当的单词,在给出提⽰词的空⽩处⽤括号所给词的正确形式填空。
ATons of waste is being left on Mount Qomolangma by a 1 (grow) number of visitors, which bothers many people. A team will deal with the task 2 the climbing season ends this May, by which time there will be fewer visitors. Garbage 3 (collect) on Qomolangma requires two to three years of training, according to Cering Dandar, a mountaineer and guide.BFood is one of the most basic and important daily needs. It gives us the strength and energy we need 4 (work) and play. Food also plays a role in our social interactions. Whether we 5 (celebrate) important occasions or just relaxing with friends, eating is an important social pastime. It is also an important part of our culture.6 a particular people like to eat can tell us a lot7 a country’s geography, history and traditions.CGoing to museums has become a trendy thing to do during the holidays in China. A popular choice this Spring Festival was the Palace Museum, 8 a special exhibition was staged to provide a virtual royal experience for visitors. The entire museum 9 (decorate) withnewly-restored ancient royal lanterns and spring couplets, including a set of the Chinese character “Fu” 10 (write) by five Qing Dynasty emperors.第⼆节完形填空(共20⼩题;每⼩题1.5分,共30分)阅读下⾯短⽂,掌握其⼤意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂⿊。
北京市东城区2021届高三英语下学期综合练习(一模)试题(一)本试卷共 10 页,共 120 分。
考试时长 100 分钟。
考生务必将答案答在答题卡上,在试卷上作答无效。
考试结束后,将本试卷和答题卡一并交回。
第一部分:知识运用(共两节,45分)第一节语法填空(共10小题;每小题1.5分,共15分)阅读下列短文,根据短文内容填空。
在未给提示词的空白处仅填写1个适当的单词,在给出提示词的空白处用括号内所给词的正确形式填空。
AThe goshawk, a rare bird, once close to extinction, has doubled 1 (it) number in a national park in the south of England. Around 100 years ago, there were thought to be no goshawks 2 (leave), due to farmers hunting them and their woodland habitats being cut down. However, thanks to conservationists, goshawks are back. By monitoring their nesting sites over time, the teams have been able to protect them from further forestry work. As a result, their number 3 (grow) from just 20 pairs to 40 pairs in the past two years.BOne morning, I told my husband jokingly that he’d dropped the ball because he hadn’t made me coffee and I was having trouble getting motivated 4 (start) the day. My five-year-old son overheard me and asked what “drop the ball” meant. I told him it was just something like making a mistake. A few minutes later, he came into our bedroom 5 (hold) an overflowing coffee cup with a dishcloth underneath it to catch the drops. He said to my husband, “You dropped the ball, but I picked the ball up,” and he handed me the w orst-tasting, most watered-down but 6 (sweet) cup of coffee ever.CIn half a century, the Internet has transformed society. Billions of us can connect at the touch of a button. Access 7 information, banks and shops has never been easier. The world has changed8 (dramatic) and continues to do so in ways we couldn’t have imagined. However,1 / 191the Internet isn’t without disadvantages. By design, it has no central authority,9 makes protecting people online or dealing with misinformation a near-impossible task.10 the Internet develops will shape our future. If the past 50 years has been dominated by free and open exchanges, the next 50 will be about whether rules and restrictions can actually make the Internet, and the world, a better place.第二节完形填空(共20小题;每小题1.5分,共30分)阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
北京市东城区2010--2011学年第二学期初三综合练习(一)数 学 试 卷 2011. 5. 10一、选择题(本题共32分,每小题4分)下面各题均有四个选项,其中只有一个是符合题意的. 1.-2的相反数是( ) A. 2 B.21 C. 21- D. -2 2.根据国家统计局的公布数据,2010年我国GDP 的总量约为398 000亿元人民币. 将398 000 用科学记数法表示应为( )A. 398×103B. 0.398×106C. 3.98×105D. 3.98×106 3.如图,直线AB ∥CD ,∠A =70︒,∠C =40︒,则∠E 等于( ) A . 30° B. 40° C. 60° D . 70° 4.如图,在△ABC 中,D 、E 分别是BC 、AC 边的中点. 若DE =2,则AB 的长度是( )A .6B .5C .4D .35.甲、乙、丙、丁四名学生10次小测验成绩的平均数(单位:分)和方差如下表:则这四人中成绩最稳定的是( )A.甲B.乙C.丙D.丁6.已知圆锥的母线长为4,底面半径为2,则圆锥的侧面积等于( )A .11πB .10πC .9πD .8π7. 若从10~99这连续90个正整数中选出一个数,其中每个数被选出的机会相等,则选出的 数其十位数字与个位数字的和为9的概率是( ) A .901 B. 101 C. 91 D. 454 8. 如图,在矩形ABCD 中,AB =5,BC =4,E 、F 分别是AB 、AD 的中点.动点R 从点B 出发,沿B →C →D →F 方向运动至点F 处停止.设点R 运动的路程为x ,EFR △的面积为y ,当y 取到最大值时,点R 应运动到( )A .BC 的中点处B .C 点处C .CD 的中点处 D .D 点处 二、填空题(本题共16分,每小题4分) 9. 若分式53+x 有意义,则x 的取值范围是____________. 10. 分解因式:a 2b -2ab+b =________________.11. 已知A 、B 是抛物线y=x 2-4x +3上关于对称轴对称的两点,则A 、B 的坐标可能 是 .(写出一对即可) 12. 如图,直线x y 33=,点1A 坐标为(1,0),过点1A 作x 轴的垂线交直线于点1B ,以原点O 为圆心,1OB 长为半径画弧交x 轴于点2A ;再过点2A 作x 轴的垂线交直线于点2B ,以原点O 为圆心,2OB 长为半径画弧交x 轴于点3A ,…,按此做法进行下去,点4A 的坐标为( , );点n A ( , ). 三、解答题(本题共30分,每小题5分) 13.计算:04sin 45(3)4︒+-π+-.14. 求不等式组46,1(3)22x x +≤⎧⎪⎨->-⎪⎩ 的整数解.15.先化简,再求值:1)1213(22-÷-+-x xx x x x ,其中13-=x .16. 如图,在四边形ABCD 中, AC 是∠DAE 的平分线,DA ∥CE ,∠AEB =∠CEB . 求证:AB=CB .17.列方程或方程组解应用题随着人们节能意识的增强,节能产品进入千家万户,今年1月小明家将天燃气热水器换成了太阳能热水器.去年12月份小明家的燃气费是96元,从今年1月份起天燃气价格每立方米上涨25%,小明家2月份的用气量比去年12月份少10立方米,2月份的燃气费是90元.问小明家2月份用气多少立方米.18.如图,在平行四边形ABCD 中,过点A 分别作AE ⊥BC 于点E ,AF ⊥CD 于点F . (1)求证:∠BAE =∠DAF ;(2)若AE =4,AF =245,3sin 5BAE ∠=,求CF 的长.四、解答题(本题共20分,每小题5分)19. 某中学的地理兴趣小组在本校学生中开展主题为“地震知识知多少”的专题调查活动,采取随机抽样的方式进行问卷调查,问卷调查的结果分为“非常了解”、“比较了解”、“基本了解”、“不太了解”四个等级,划分等级后的数据整理如下表:(1)表中的m 的值为_______,n 的值为 .(2)根据表中的数据,请你计算“非常了解”的频率在下图中所对应的扇形的圆心角的度数,并补全扇形统计图.(3)若该校有1500名学生,请根据调查结果估计这些学生中“比较了解”的人数约为多少?20. 已知:AB 是⊙O 的弦,OD ⊥AB 于M 交⊙O 于点D ,CB ⊥AB 交AD 的延长线于C . (1)求证:AD =DC ;(2)过D 作⊙O 的切线交BC 于E ,若DE =2,CE=1,求⊙O 的半径.21.在平面直角坐标系xOy 中,一次函数y=k 1x+b 与反比例函数y =xk 2的图象交于A (1,6),B (a ,3)两点 . (1)求k 1, k 2的值;(2)如图,点D 在x 轴上,在梯形OBCD 中,BC ∥OD ,OB=DC ,过点C 作CE ⊥OD 于点E ,CE 和反比例函数的图象交于点P ,当梯形OBCD 的面积为18时,求PE :PC 的值.22. 如图1,在△ABC中,已知∠BAC=45°,AD⊥BC于D,BD=2,DC=3,求AD的长.小萍同学灵活运用轴对称知识,将图形进行翻折变换如图1.她分别以AB、AC为对称轴,画出△ABD、△ACD的轴对称图形,D点的对称点为E、F,延长EB、FC相交于G点,得到四边形AEGF是正方形.设AD=x,利用勾股定理,建立关于x的方程模型,求出x的值.(1)请你帮小萍求出x的值.(2) 参考小萍的思路,探究并解答新问题:如图2,在△ABC中,∠BAC=30°,AD⊥BC于D,AD=4.请你按照小萍的方法画图,得到四边形AEGF,求△BGC的周长.(画图所用字母与图1中的字母对应)图1 图2五、解答题(本题共22分,第23题7分,第24题7分,第25题8分) 23. 已知关于x 的方程(m -1)x 2-(2m-1)x +2=0有两个正整数根. (1) 确定整数m 值;(2) 在(1)的条件下,利用图象写出方程(m -1)x 2-(2m -1)x +2+xm=0的实数根的个数.24. 等边△ABC 边长为6,P 为BC 边上一点,∠MPN =60°,且PM 、PN 分别于边AB 、AC交于点E 、F .(1)如图1,当点P 为BC 的三等分点,且PE ⊥AB 时,判断△EPF 的形状;(2)如图2,若点P 在BC 边上运动,且保持PE ⊥AB ,设BP =x ,四边形AEPF 面积的y ,求y 与x 的函数关系式,并写出自变量x 的取值范围;(3)如图3,若点P 在BC 边上运动,且∠MPN 绕点P 旋转,当CF =AE =2时,求PE 的长.图1 图2 图325. 如图,已知二次函数y=ax2+bx+8(a≠0)的图像与x轴交于点A(-2,0),B,与y轴交于点C,tan∠ABC=2.(1)求抛物线的解析式及其顶点D的坐标;(2)设直线CD交x轴于点E.在线段OB的垂直平分线上是否存在点P,使得经过点P的直线PM垂直于直线CD,且与直线OP的夹角为75°?若存在,求出点P的坐标;若不存在,请说明理由;(3)过点B作x轴的垂线,交直线CD于点F,将抛物线沿其对称轴向上平移,使抛物线与线段EF总有公共点.试探究:抛物线最多可以向上平移多少个单位长度?北京市东城区2010--2011学年第二学期初三综合练习(一)数学试卷参考答案二、填空题(本题共16分,每小题4分)三、解答题:(本题共30分,每小题5分) 13.(本小题满分5分)解:04sin 45(3)4︒+-π+-=22422⨯-+1+4 ………………………………………4分 =5. …………………………………… 5分14.(本小题满分5分) 解:由①得:x ≤2. --------1分 由②得:x-3>-4,x >-1. --------2分∴原不等式组的解集为 -1<x ≤2. --------3分 ∴原不等式组的整数解为 0,1,2. --------5分 15.(本小题满分5分)1)1213(22-÷-+-x x xx x x=xx x x x x x 1]12)1)(1(3[2-⨯--+---------2分=213-+x x=12+-x x . --------3分 当13-=x 时,3133312-=-=+-x x .--------5分 16.(本小题满分5分)证明:∵AC 是∠DAE 的平分线, ∴∠1=∠2. -------1分又∵AD ∥EC ,∴∠2=∠3. ------2分 ∴∠1=∠3.∴AE=CE. --------3分 在△ABE 和△CBE 中, , ∠AEB=∠CEB , ,∴△ABE ≌△CBE. --------4分 ∴AB=CB. ------5分 17.(本小题满分5分)解:设小明家2月份用气x 立方米,则去年12月份用气(x +10) 立方米.-------1分 根据题意,得%251096109690⨯+=+-x x x . ----------------3分 解这个方程,得x =30. ---------------4分 经检验,x =30是所列方程的根.答:小明家2月份用气30立方米. -----------------5分 18.(本小题满分5分) 证明:(1)∵四边形ABCD 是平行四边形, ∴∠B=∠D. 又AE ⊥BC ,AF ⊥CD ,∴∠AEB=∠AFD.∴∠BAE=∠DAF.---------2分(2)在Rt △ABE 中,sin ∠BAE=53,AE=4,可求 AB=5. ---------3分又∵∠BAE=∠DAF ,∴ sin ∠DAF=sin ∠BAE=53.ABCDE231ABCDEF在Rt △ADF 中,AF=524, sin ∠DAF =53,可求DF=518-------4分∵ CD=AB=5.∴CF=5-518=57. …………………………………………5分四、解答题(本题共20分,每小题5分) 19.(本小题满分5分)解:(1)0.6;36;------------2分 (2)72°;补全图如下:60%比较了解不太了解2%18%------------4分(3)1500×0.6=900.答:学生中“比较了解”的人数约为900人 ------------5分 20.(本小题满分5分)(1)证明:在⊙O 中,OD ⊥AB ,CB ⊥AB ,∴AM =MB ,OD ∥BC . …………………1分 ∴AD =DC . ……………2分 (2)∵DE 为⊙O 切线,∴OD ⊥DE ……………3分 ∴四边形MBED 为矩形.∴DE ∥AB. ……………4分 ∴MB=DE =2,M D=BE =EC =1. 连接OB.在R t △OBM 中,OB 2=OM 2+BM 2.解得 OB=25. …………………5分 21.(本小题满分5分)解:(1)∵点A (1,6),B (a ,3)在反比例函数y =xk 2的图象上, ∴ k 2=1×6=6. --------1分 ∴ a ×3=6,a =2.MOA BCDE∴B (2,3).由点A (1,6),B (2,3)也在直线y=k 1x+b 上,得⎩⎨⎧=+=+,32,611b k b k解得k 1=-3.∴k 1=-3, k 2=6. -----------------2分 (2) 设点P 的坐标为(m,n ). 依题意,得21×3(m +2+m -2)=18,m =6. -----------------3分 ∴ C (6,3),E (6,0). ∵ 点P 在反比例函数y =x6的图象上, ∴ n =1. ------------------4分 ∴PE :PC =1:2 . ------------------5分 22.(本小题满分5分)解: (1)设AD =x ,由题意得,BG=x -2,CG=x-3. 在Rt △BCG 中,由勾股定理可得 222(2)(3)5x x -+-=. 解得 6x =. --------------2分(2)参考小萍的做法得到四边形AEGF ,∠EAF=60°,∠EGF=120°,∠AEG=∠AFG= 90°,AE=AF=AD=4. 连结EF ,可得 △AEF 为等边三角形. ∴ EF=4.∴ ∠FEG=∠EFG= 30°. ∴ EG=FG.在△EFG中,可求,EG =∴△EFG 的周长=BG+CG+BC=BG+CG+EB+FC=2EG=分 五、解答题:(本题共22分,第23题7分,第24题7分,第25题8分) 23.(本小题满分7分) 解: 由方程(m -1)x 2-(2m -1)x +2+xm=0可得)1(22)1(4)12()12(2-⨯-⨯--±--=m m m m xGF EDCBA=)1(2)32(12)1(2)32()12(2-+±-=--±-m m m m m m 111-=m x ,.22=x ∵21,x x 均为正整数,m 也是整数, ∴m =2. ----------3分 (2)由(1)知x 2-3x +2+x2=0. ∴x 2-3x +2= -x2. 画出函数y = x 2-3x +2,y = -x2的图象,---------6分 由图象可知,两个函数图象的交点个数是1. ---------7分24. (本小题满分7分)(1)△EPF 为等边三角形. --------------1分 (2)设BP=x ,则CP =6-x.由题意可 △BEP 的面积为28x .△CFP 2)x -.△ABC 的面积为. 设四边形AEPF 的面积为y.∴ y =2x 2)x -=2+-自变量x 的取值范围为3<x <6. --------------4分(3)可证△EBP ∽△PCF.∴BP BECF CP=. 设BP=x , 则 (6)8x x -=. 解得 124,2x x ==.∴ PE 的长为4或 --------------7分25.(本小题满分8分)解:(1)依题意,可知 C(0,8),则B(4,0) 将A(-2,0),B(4,0)代入 y=ax 2+bx +8,⎩⎨⎧=++=+-.08416,0824b a b a 解得⎩⎨⎧=-=.2,1b a 228y x x ∴=-++配方得y2(1)9x =--+,顶点D (1,9). ---------3分 (2)假设满足条件的点P 存在,依题意设(2)P t ,, 由(08)(19)C D ,,,求得直线CD 的解析式为8y x =+, 它与x 轴的夹角为45. 过点P 作PN ⊥y 轴于点N.依题意知,∠NPO=30°或∠NPO=60°. ∵PN=2,∴ON=332或23. ∴存在满足条件的点P ,P 的坐标为(2,332 )和(2,23).-----------6分 (3)由上求得(80)(412)E F -,,,.当抛物线向上平移时,可设解析式为228(0)y x x m m =-+++>. 当8x =-时,72y m =-+. 当4x =时,y m =.720m ∴-+≤或12m ≤.由题意可得m 的范围为072m ∴<≤.∴ 抛物线最多可向上平移72个单位. -----------8分。
北京市东城区2021年高三年级一模考试英语试卷2021.4 本试卷共10页,共100 分。
考试时长90 分钟。
考生务必将答案答在答题卡上,在试卷上作答无效。
考试结束后,将本试卷和答题卡一并交回。
第一部分:知识运用(共两节,30分)第一节完形填空(共10小题;每小题1.5分,共15分)阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
A Labrador has been doing an important job to help people stay safe during the COVID-19 pandemic.Eight-year-old Roby runs through the streets of the hilly city of Medellin several times a day with a 1 in his jaws, taking vegetables, fruit and packaged foods to customers of the Fresh4U mini-market.“He helps us to maintain social distancing,” said Roby’ owner, Sherry Botero. “And people 2 it when we send the dog.” Roby enjoys eating carrots 3 to him by customers, a tip for bringing a basket of food.Roby wasn’t always a star. He was accepted into the family 4 by Ms Botero after repeated requests by her son to 5 a dog.But Ms Botero quickly 6 with the dog. And when she opened a mini-market four years ago, he started to accompany her to make deliveries.Roby can’t read 7 . But he remembers the names of customers who have previously rewarded him with treats. And with some practice, he has learned to go to their houses on his own.“He knows the names of five or six of our customers,” Ms Botero said, “So I send the goods with a receipt in the basket, and my customers 8 me through a bank transfer(转账;转移).”Roby might not know that he’s become an 9 worker. But he is happy to help his owner and 10 his daily pay.1. A. bag B. chain C. basket D. stick2. A. respect B. love C. follow D. notice3. A. gifted B. returned C. lent D. donated4. A. intentionally B. regretfully C. immediately D. unwillingly5. A. adopt B. train C. adore D. walk6. A. got away B. kept in touch C. caught up D. fell in love7. A. minds B. addresses C. numbers D. receipts8. A. treat B. help C. pay D. impress9. A. essential B. honest C. optimistic D. adventurous10. A. spend B. calculate C. collect D. increase第二节语法填空(共10小题;每小题1.5分,共15分)阅读下列短文,根据短文内容填空。
北京市东城区2019—2020学年度第二学期高三综合练习(一)英语2020.5本试卷共10页,共120分。
考试时长100分钟。
考生务必将答案答在答题卡上,在试卷上作答无效。
考试结束后,将本试卷和答题卡一并交回。
第一部分:知识运用(共两节,45分)第一节语法填空(共10小题;每小题1.5分,共15分)阅读下列短文,根据短文内容填空。
在未给提示词的空白处仅填写1个适当的单词,在给出提示词的空白处用括号内所给词的正确形式填空。
AThe goshawk,a rare bird,once close to extinction,has doubled1(it)number in a national park in the south of England.Around100years ago,there were thought to be no goshawks2 (leave),due to farmers hunting them and their woodland habitats being cut down.However,thanks to conservationists,goshawks are back.By monitoring their nesting sites over time,the teams have been able to protect them from further forestry work.As a result,their number3(grow)from just20pairs to40pairs in the past two years.BOne morning,I told my husband jokingly that he’d dropped the ball because he hadn’t made me coffee and I was having trouble getting motivated4(start)the day.My five-year-old son overheard me and asked what“drop the ball”meant.I told him it was just something like making a mistake.A few minutes later,he came into our bedroom5(hold)an overflowing coffee cup with a dishcloth underneath it to catch the drops.He said to my husband,“You dropped the ball,but I picked the ball up,”and he handed me the worst-tasting,most watered-down but6(sweet) cup of coffee ever.CIn half a century,the Internet has transformed society.Billions of us can connect at the touch of a button.Access7information,banks and shops has never been easier.The world has changed8(dramatic)and continues to do so in ways we couldn’t have imagined.However,the Internet isn’t without disadvantages.By design,it has no central authority,9makes protecting people online or dealing with misinformation a near-impossible task.10the Internet develops will shape our future.If the past50years has been dominated by free and open exchanges,the next50will be about whether rules and restrictions can actually make the Internet,and the world,a better place.第二节完形填空(共20小题;每小题1.5分,共30分)阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
2019北京市东城区高三一模英语2019.4本试卷共10页,共120分。
考试时长100分钟。
考生务必将答案答在答题卡上,在试卷上作答无效。
考试结束后,将本试卷和答题卡一并交回。
第一部分:知识运用(共两节,45分)第一节语法填空(共10小题;每小题1.5分, 共15分)阅读下列短文,根据短文内容填空。
在未给提示词的空白处仅填写一个..适当的单词,在给出提示词的空白处用括号内所给词的正确形式填空。
ATons of waste is being left on Mount Qomolangma by a 1 (grow) number of visitors, which bothers many people. A team will deal with the task 2 the climbing season ends this May, by which time there will be fewer visitors. Garbage 3 (collect) on Qomolangma requires two to three years of training, according to Cering Dandar, a mountaineer and guide.BFood is one of the most basic and important daily needs. It gives us the strength and energy we need 4 (work) and play. Food also plays a role in our social interactions. Whether we 5 (celebrate) important occasions or just relaxing with friends, eating is an important social pastime. It is also an important part of our culture.6 a particular people like to eat can tell us a lot7 a country’s geography, history and traditions.CGoing to museums has become a trendy thing to do during the holidays in China. A popular choice this Spring Festival was the Palace Museum, 8 a special exhibition was staged to provide a virtual royal experience for visitors. The entire museum 9 (decorate) withnewly-restored ancient royal lanterns and spring couplets, including a set of the Chinese character “Fu” 10 (write) by five Qing Dynasty emperors.第二节完形填空(共20小题;每小题1.5分,共30分)阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
北京市东城区2021—2022学年度第二学期高三综合练习(一)英语本试卷共11页,共100分。
考试时长90分钟。
考生务必将答案答在答题卡上,在试卷上作答无效。
考试结束后,将本试卷和答题卡一并交回。
第一局部:知识运用(共两节,30分)第一节完形填空(共10小题;每题L5分,共15分)阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最正确选项,并在答题卡上将该项涂黑。
Every year, around 20,000 American teenagers age out of foster care (寄养)at 18, and have to start their lives by themselves.Ella first became aware of foster care when her parents were considering adopting a child. Although the] didn't work out, Ella often found herself thinking a bout that child. “I'm really close with my family, and just couldn'timagine being 2 on my own at 18 J she says.Later, Ella visited Children Services, with a list of questions, trying to 3 what aging out looked like. One questionwas "What's not being 4 f or these young people?”. Near the top of the list was furniture. "The idea of moving into anapartment and not having a bed to sleep on pulled at my heartstrings,says Ella.Ella contacted her parents9 friends, asking if they had spare furniture to 5, And a local furniture storeoffered freespace and delivery truck. Then she formed Chair-ity, a nonprofit providing furniture for young adults who have 6 fostercare.Watching those in need receive a bed, a table一whatever-was transformational. Ella remembers Hannah, a former foster care girl who couldn't afford any furniture. When Hannah 7 to Chair-ity, Ella asked what she needed. "Everything J she replied. When she found her once 8 apartment stood a full kitchen set, a bed, and a table, she said, “It really relieved my pressure.“To think what hadn't been thought about in years could bring so much happiness to somebody was 9 J Ella says.Today, Chair-ity has given furniture to nearly 200 young adults. As word has got out, Ella has received donationsfrom more and more people. She's convinced these contributions give those young people 10 andconfidence.1.A. planB. jobC. wayD. taskA. occasionallyB. completelyC. frequentlyD. slightlyA.One good turn deserves another.B.Chance favors the prepared mind.C.Nothing is impossible to a willing heart.D.There's no such thing as useless knowledge.【24〜26题答案】【答案】24. B 25. A 26. D【解析】【导语】本文是一篇记叙文。
2019年北京东城区高三一模英语试卷【含答案及解析】姓名姓名___________ ___________ 班级班级班级____________ ____________ 分数分数____________________题号一 二 三 四 五 总分 得分一、单项填空1.K imberly ______ an article, so don’t disturb her.Kimberly ______ an article, so don’t disturb her. A .would write B .writesC .wrote ___________D .is writing2. Robert had a comfortable childhood, ______ up in a pleasant house with a view of the sea.A .grewB .growingC .grownD .to grow3. The world is not always ______ we wish it to be.A .thatB .whichC .whatD .where4. More subway lines ______ to make travelling easy in Beijing in the coming years.A .will buildB .will be builtC .buildD .are built5. This computer is different from the one I ______ in my last job. A .use B .have usedC .usedD .had used6. He had a great desire to have a home of his own, ______ he had always lived with his grandmother.A .orB .andC .soD .for7. — Are you ready for the history test tomorrow?— No, I wish I ______ the clock back.A.had turned B.could turn.would have turnedC.will turn D8. Meyer and his team were the first ______ how the disease spreads from animals to humans.A.showing B.showC.to show D.shown9. — Hey, the washing up has been done!.She’s always helpful.— That ______ Cynthia.could have beenA.need have been B.must have beenC.should have been D10. — The room looks bigger!— We ______ the furniture.A.have changed B.had changedC.changed _________ D.are changing11. Finding a time ______ suits everyone is going to be difficult.A.that B.when C.what D.where.It’s not12. We strongly advise you ______ eating your meal so latehealthy..againstA.on BC.from D.over13. Having pictures to color will keep children ______ for hours.A.amused B.amusing.to amuseC.amuse D14. The use of computers has made ______ possible for more people to work at home.A.it B.that C.which D.what15. Muir succeeds ______ other designers have failed—her clothes are original, yet stylish.A .thatB .whatC .whichD .where二、完形填空16.阅读下面短文,掌握其大意,从每题所给的A 、B 、C 、D 四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
2011年北京市东城区高考数学一模试卷(文科)一、本大题共8小题,每小题5分,共40分.在每小题列出的四个选项中,选出符合题目要求的一项.1. 已知复数z满足(1−i)z=2,i为虚数单位,则z等于( )A 1−iB 1+iC 12−12i D 12+12i2. 命题“∃x0∈R,使log2x0≤0成立”的否定为()A ∃x0∈R,使log2x0>0成立B ∃x0∈R,使log2x0≥0成立C ∀x0∈R,均有log2x0≥0成立 D ∀x0∈R,均有log2x0>0成立3. 已知函数f(x)是定义在R上的偶函数,且当x>0时,f(x)=ln(x+1),则函数f(x)的大致图象为()A B C D4. 给定下列四个命题:①若一个平面内的两条直线与另一个平面都平行,则这两个平面平行;②若两个平面都垂直于同一条直线,则这两个平面平行;③若两个平面互相垂直,则在其中一个平面内的直线垂直另外一个平面;④若两个平面互相平行,则在其中一个平面内的直线平行另外一个平面.其中为真命题的是()A ①和②B ②和③C ③和④D ②和④5. 已知函数y=sin(ωx+φ)(ω>0,0<φ≤π2)的部分图象如图所示,则点P(ω, φ)的坐标为()A (2,π3) B (2,π6) C (12,π3) D (12,π6)6. 若如图的程序框图输出的S是126,则①应为()A n ≤5B n ≤6C n ≤7D n ≤8 7. 已知函数f(x)=(12)x −x 13,那么在下列区间中含有函数f(x)零点的为( )A (0,13) B (13,12) C (12,1) D (1, 2)8. 空间点到平面的距离如下定义:过空间一点作平面的垂线,该点和垂足之间的距离即为该点到平面的距离.已知平面α,β,γ两两互相垂直,点A ∈α,点A 到β,γ的距离都是3,点P 是α上的动点,满足p 到β的距离是到p 到点A 距离的2倍,则点P 的轨迹上的点到γ的距离的最小值为( )A √3B 3−2√3C 6−√3D 3−√3二、填空题:本大题共6小题,每小题5分,共30分. 9. 抛物线y 2=8x 的焦点坐标是________.10. 在等差数列{a n }中,已知a 1=2,a 2+a 3=13,则a 4+a 5+a 6=________.11. 已知向量a →,b →,c →满足a →−b →+2c →=0→,且a →⊥c →,|a →|=2,|c →|=1,则|b →|=________. 12. 已知α∈(π2,π),tan(α+π4)=17,则sinα+cosα=________.13. 设f(x)={2a x ,x ≤1log a (x 2−1),x >1且f(2√2)=1,则a =________;f (f(2))=________.14. 设不等式组{x ≥0y ≥0y ≤−kx +4k在直角坐标系中所表示的区域的面积为S ,则当k >1时,ks k−1的最小值为________.三、解答题:本大题共6小题,共80分.解答应写出文字说明,演算步骤或证明过程. 15. 在△ABC 中,角A ,B ,C 的对边分别为a ,b ,c .cosC =45,c =2bcosA . (1)求证:A =B ; (2)若△ABC 的面积S =152,求c 的值.16. 已知四棱锥P −ABCD 的底面是菱形,PB =PD ,E 为PA 的中点.(1)求证:PC // 平面BDE ;(2)求证:平面PAC ⊥平面BDE .17. 某高校在2010年的自主招生考试中随机抽取了100名学生的笔试成绩,按成绩分组:第一组[160, 165),第二组[165, 170),第三组[170, 175),第四组[175, 180),第五组[180, 185)得到的频率分布直方图如图所示, (1)求第三、四、五组的频率;(2)为了以选拔出最优秀的学生,学校决定在笔试成绩高的第三、四、五组中用分层抽样抽取6名学生进入第二轮面试,求第三、四、五组每组各抽取多少名学生进入第二轮面试.(3)在(2)的前提下,学校决定在这6名学生中随机抽取2名学生接受甲考官的面试,求第四组至少有一名学生被甲考官面试的概率. 18. 已知函数f(x)=x 3+ax 2−x +c ,且a =f′(23).(1)求a 的值;(2)求函数f(x)的单调区间;(3)设函数g(x)=(f(x)−x 3)⋅e x ,若函数g(x)在x ∈[−3, 2]上单调递增,求实数c 的取值范围.19. 已知椭圆C 的中心在坐标原点,焦点在x 轴上,离心率为12,椭圆C 上的点到焦点距离的最大值为3.(1)求椭圆C 的标准方程;(2)若过点P(0, m)的直线l 与椭圆C 交于不同的两点A ,B ,且AP →=3PB →,求实数m 的取值范围.20. 对于n ∈N ∗(n ≥2),定义一个如下数阵:A nn =[a 11a 12…a 1n a 21a 22…a 2n…………a n1a n2…a nn]其中对任意的1≤i ≤n ,1≤j ≤n ,当i 能整除j 时,a ij =1;当i 不能整除j 时,a ij =0. (1)当n =4时,试写出数阵A 44;(2)设t(j)=∑a ij n i=1=a 1j +a 2j +⋯+a nj .若[x]表示不超过x 的最大整数,求证:∑t n j=1(j)=∑[n i=1ni ].2011年北京市东城区高考数学一模试卷(文科)答案1. B2. D3. C4. D5. A6. B7. B8. D9. (2, 0) 10. 42 11. 2√2 12. −1513. 7,6 14. 32 15. 解:(1)∵ c =2bcosA ,∴ 根据正弦定理得:sinC =2sinB ⋅cosA , 又sinC =sin[π−(A +B)]=sin(A +B),∴ sinC =sin(A +B)=sinAcosB +cosAsinB =2sinB ⋅cosA , 整理得:sinAcosB −cosAsinB =sin(A −B)=0, 在△ABC 中,∵ 0<A <π,0<B <π, ∴ −π<A −B <π, 则A =B ;(2)由(1)A =B ,可得a =b , ∵ cosC =45,且C 为三角形的内角,∴ sinC =√1−cos 2C =35,又△ABC 的面积S =152,∴ S =12absinC =310ab =152,即ab =a 2=25,∴ a =b =5,又cosC =45,由余弦定理得:c 2=a 2+b 2−2abcosC =10,则c=√10.16. 证明:(1)如图,设O为AC、BD的交点,连接EO,∵ E,O分别为PA,AC的中点,∴ EO // PC.∵ EO⊂平面BDE,PC⊄平面BDE,∴ PC // 平面BDE.(2)如图,连接OP∵ PB=PD,O为BD的中点∴ OP⊥BD.又∵ 在菱形ABCD中,BD⊥AC且OP∩AC=O∴ BD⊥平面PAC∵ BD⊂平面BDE∴ 平面PAC⊥平面BDE.17. 解:(1)由题设可知,第三组的频率为0.06×5=0.3第四组的频率为0.04×5=0.2第五组的频率为0.02×5=0.1.(2)第三组的人数为0.3×100=30第四组的人数为0.2×100=20第五组的人数为0.1×100=10因为第三、四、五组共有60名学生,所以利用分层抽样在60名学生中抽取6名学生,每组×6=3抽到的人数分别为:第三组3060×6=2第四组2060×6=1第五组1060所以第三、四、五组分别抽取3人,2人,1人.(3)设第三组的3位同学为A 1,A 2,A 3,第四组的2位同学为B 1,B 2, 第五组的1位同学为C 1则从6位同学中抽2位同学有:(A 1, A 2),(A 1, A 3),(A 1, B 1),(A 1, B 2),(A 1, C 1),(A 2, A 3),(A 2, B 1),(A 2, B 2)(A 2, C 1),(A 3, B 1),(A 3, B 2),(A 3, C 1),(B 1, B 2),(B 1, C 1),(B 2, C 1)共15种可能其中第四组的2位同学B 1,B 2中至少1位同学入选有(A 1, B 1),(A 1, B 2),(A 2, B 1),(A 2, B 2),(A 3, B 1),(A 3, B 2)(B 1, B 2),(B 1, C 1),(B 2, C 1)共9种可能 所以第四组至少有1位同学被甲考官面试的概率为915=3518. 解:(1)由f(x)=x 3+ax 2−x +c ,得f ′(x)=3x 2+2ax −1. 当x =23时,得a =f′(23)=3×(23)2+2f′(23)×(23)−1,解之,得a =−1.…(2)因为f(x)=x 3−x 2−x +c .从而f′(x)=3x 2−2x −1=3(x +13)(x −1),由f′(x)=3x 2−2x −1=3(x +13)(x −1)=0,得x 1=−13,x 2=1, 列表如下:所以f(x)的单调递增区间是(−∞,−13)和(1, +∞); f(x)的单调递减区间是(−13,1).…(3)函数g(x)=(f(x)−x 3)⋅e x =(−x 2−x +c)⋅e x ,有g ′(x)=(−2x −1)e x +(−x 2−x +c)e x =(−x 2−3x +c −1)e x , 因为函数在区间x ∈[−3, 2]上单调递增,等价于ℎ(x)=−x 2−3x +c −1≥0在x ∈[−3, 2]上恒成立, 只要ℎ(2)≥0,解得c ≥11, 所以c 的取值范围是c ≥11.…19. 解:(1)设所求的椭圆方程为:x 2a 2+y 2b 2=1(a >b >0) 由题意:{ca=12a +c =3a 2=b 2+c 2⇒{a =2b =√3c =1所求椭圆方程为:x 24+y 23=1.…(2)若过点P(0, m)的斜率不存在,则m =±√32. 若过点P(0, m)的直线斜率为k ,即:m ≠±√32时, 直线AB 的方程为y −m =kx由{y =kx +m 3x 2+4y 2=12⇒(3+4k 2)x 2+8kmx +4m 2−12=0, △=64m 2k 2−4(3+4k 2)(4m 2−12), 因为AB 和椭圆C 交于不同两点, 所以△>0,4k 2−m 2+3>0, 所以4k 2>m 2−3 ① 设A(x 1, y 1),B(x 2, y 2), 由已知AP →=3PB →, 则x 1+x 2=−8km3+4k 2,x 1x 2=4m 2−123+4k 2②AP →=(−x 1,m −y 1),PB →=(x 2,y 2−m)−x 1=3x 2③ 将③代入②得:−3(4km 3+4k 2)2=4m 2−123+4k 2整理得:16m 2k 2−12k 2+3m 2−9=0 所以k 2=9−3m 216m 2−12代入①式,得4k 2=9−3m 24m 2−3>m 2−34m 2(m 2−3)4m 2−3<0,解得34<m 2<3. 所以−√3<m <−√32或√32<m <√3.综上可得,实数m 的取值范围为:(−√3,−√32]∪[√32,√3).… 20. 解:(1)依题意可得,A 44=[1111010100100001]…(2)由题意可知,t(j)是数阵A nn 的第j 列的和, 因此∑t n j=1(j)是数阵A nn 所有数的和. 而数阵A nn 所有数的和也可以考虑按行相加.对任意的1≤i ≤n ,不超过n 的倍数有1i ,2i ,…,[ni ]i . 因此数阵A nn 的第i 行中有[ni]个1,其余是0,即第i 行的和为[ni].所以∑t n j=1(j)=∑[n i=1ni ].…。
北京市各地区2023届高考英语一模试题分类汇编-04七选五一、七选五参考答案:1.G 2.D 3.E 4.F 5.B【导语】这是一篇说明文。
散步被认为是最好的运动之一。
对许多人来说,每天散步对身体和精神都有巨大而长期的好处。
然而,这个习惯不仅仅是一个健康的习惯,也是创造力的必要因素。
斯坦福大学的一项研究发现,与坐着相比,走路时人们更有创造力。
1.根据空白处上文“For many people,daily walking offers massive and long-term physical and mental benefits(对许多人来说,每天散步对身体和精神都有巨大而长期的好处)”以及下文“A Stanford University study found that participants were more creative when walking as opposed to sitting(斯坦福大学的一项研究发现,与坐着相比,参与者在走路时更有创造力).”可知,此处上下文说的是走路不仅有益于身体健康,也是有利于创造力的培养,G项“However, this habit isn’t just a healthy habit but a necessary element of creativity(然而,这个习惯不仅是一个健康的习惯,也是创造力的必要因素)”表达的含义一致,故选G项。
2.根据下文“Our creative mindset is triggered by physical movement(我们的创造性思维是由身体运动引发的)”可知,走路时的身体运动很重要,D项“The physical movement during walking is obviously key(走路时的身体运动显然是关键)”表达的含义一致,讲述身体运动是重要的。
故选D项。
3.根据上文“Just by going outside, you are stepping out of your habitual surroundings and your comfort zone,which is necessary if you want to open your mind to new possibilities(只要走出去,你就走出了你习惯的环境和舒适区,如果你想打开你的思维,接受新的可能性,这是必要的)”可知此处说的是要到外面去走走,E项“You can walk through a park and observe people relaxing or birds singing(你可以穿过公园,观察人们放松或鸟儿唱歌)”符合语境,承接上文,故选E项。
东城区2010—2011学年度第二学期高三统一练习(一) 英语试卷 2011.4
第一部分:听力理解(共三节,30分) 第二部分:知识运用(共两节,45分) 第一节:单项填空(共15小题,每小题1分,满分15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,并在答题卡上将该项涂黑。 例:It’s so nice to hear from her again. , we last met more than thirty years ago. A.What’s more B.That’s to say C.In other words D.Believe it or not 答案是D。 21. — Do you still go jogging every morning? — Yes, I can’t think of a _____ way to start a day. A. better B. best C. worse D. worst 22. Cathy didn’t go to the cinema with us last night because she _____ her homework. A. does B. did C. was doing D. had done 23. Schools in the north tend to be better equipped, _____ those in the south are relatively poor. A. once B. while C. as D. until 24. The doctors _____ to operate on Sam because his parents had not given permission. A. would refuse B. have refused C. refuse D. refused 25. Be careful when washing those glasses! I don’t want them _____. A. to have been broken B. to be broken C. breaking D. break 26. “Drive-ins” have large parking lots _____ customers are served in their cars by waitresses. A. who B. when C. which D. where 27. — There aren’t any toys in our suitcase. Where have you put them? — Oh, no. That old lady sitting next to us _____ have taken ours by mistake. A. must B. could C. should D. would 28. I won’t invite you to the house warming party until we _____ in. A. are moving B. will move C. have moved D. moved 29. I’m exhausted. I stayed up the whole night, _____ for my midterm math exam. A. studying B. to study C. to be studying D. studied 30. Bill _____ football very well though he didn’t play it last month for catching a bad cold. A. plays B. played C. was playing D. have played 31. _____ so many countries, you may have learned a lot about different cultures. A. To visit B. To have visited C. Having visited D. Visiting 32. We’ve been looking at houses but haven’t found _____ we like yet. A. this B. that C. it D. one 33. When it comes to going after _____ you love in life, don’t take no for an answer. A. how B. why C. what D. that 34. — What are your plans for _____ future? — I always dream of _____ future that I can spend all the time painting. A. 不填; a B. the; a C. the; 不填 D. a; the 35. _____ David showed the report to the public surprises me. A. What B. That C. Which D. Who 第二节 完形填空(共20小题;每小题1.5分,共30分) 阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。 As sixth graders, kids were separating into groups, but I wasn’t sure where I belonged. Our teacher gave us a task called “secret friends” for the coming week. We were supposed to do nice things 36 our friends without letting them know who was doing it. We could leave 37 notes or cards either on their desks or in their backpacks. Before doing the task, with our eyes closed, from a basket, we 38 a name of a classmate who we were to secretly befriend over the next five days. Soon, the task was turned into a competition of giving 39 instead of notes. Everyone was getting cool presents except me. My friend followed the teacher’s 40 without a fault. I received nothing but handmade cards with nice words about me. On the last morning, I finally got a package. When I 41 it, the girls around all 42 . It was perfumed powder, an “old lady” gift. My face went red. I tried to forget about the 43 gift, but when the same girls 44 it again during the break in the bathroom, I joined in, “How stupid! My grandmother wouldn’t 45 want it.” The girls laughed at my 46 and filed out of the bathroom. Washing my hands, I let the water run through my fingers 47 I thought about my words. It wasn’t 48 like me to say things like that. “I’m your secret friend.” It was Rochelle. “I’m sorry about the gift.” she whispered to me, tears 49 down her face. From a poor family, she was a 50 at school for those with rich parents. Yet she just took all the 51 and the horrible treatment silently. I was sick to my stomach as my 52 words ran through my mind. She had heard everything. How could I have been so cruel? Later I learned she had felt bad all week about not being able to leave me any cool present and her mum had given up her only luxury(奢侈品). And I had 53 everything for her. I told her that I had only said those things to try to 54 . “We aren’t that different from each other, are we?” She smiled 55 . Her simple words, spoken from her heart, found their way straight into mine. 36. A. for B. behind C. through D. like 37. A. convincing B. satisfying C. rewarding D. encouraging 38. A. drew B. dragged C. found D. got 39. A. chances B. help C. hope D. gifts 40. A. guidance B. patterns C. directions D. admission 41. A. discovered B. opened C. grasped D. held 42. A. blamed B. shouted C. laughed D. commented 43. A. special B. delicate C. worrying D. embarrassing 44. A. mentioned B. saw C. showed D. suggested 45. A. just B. ever C. even D. only 46. A. remarks B. feeling C. suffering D. reactions 47. A. if B. as C. since D. because 48. A. exactly B. perfectly C. normally D. necessarily 49. A. dashing B. getting C. smoothing D. streaming 50. A. goal B. target C. centre D. wonder 51. A. challenge B. puzzle C. teasing D. ignoring 52. A. powerful B. hurtful C. tense D. scary 53. A. ruined B. broken C. changed D. disturbed 54. A. turn off B. show off C. get in D. fit in 55. A. optimistically B. understandingly C. persuasively D. honestly