15级综合周考(2)答案
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岳阳2024年08版小学五年级英语能力测评(含答案)考试时间:90分钟(总分:120)A卷一、综合题(共计100题共100分)1. plate tectonics) explain how continents move. 填空题:The ____2. 填空题:The ________ (病虫害) can harm plants.3. 填空题:The __________ (花蜜) attracts pollinators.4. 听力题:Astronauts travel to space in a ______.5. 听力题:I have ________ toys at home.6. 填空题:I can ______ (积极参与) in discussions.7. 填空题:My uncle enjoys __________ (开车) on road trips.8. 填空题:The ancient Egyptians developed ________ to measure time accurately.9. ers are ______ (食用的) and can be added to dishes. 填空题:Some flo10. 选择题:What do we call a house for bees?A. HiveB. NestC. DenD. Burrow答案:A11. 填空题:A ________ is small and furry.12. 根据文意和图示选单词,并将单词规范地书写在四线格内。
13. 选择题:What do we call something that floats on water?A. SinkB. FloatC. DriftD. Swim14. sh Armada was defeated in __________ (1588). 填空题:The Span15. 选择题:What is the largest ocean on Earth?A. Atlantic OceanB. Indian OceanC. Arctic OceanD. Pacific Ocean答案:D. Pacific Ocean16. 选择题:What is the opposite of tall?A. ShortB. BigC. LongD. Small答案:AWhat is the capital city of France?A. ParisB. LondonC. BerlinD. Rome答案:A18. 选择题:What is the capital of Lesotho?A. MaseruB. TeyateyanengC. MafetengD. Mohale's Hoek答案: A19. 填空题:The puppy is ________ (可爱).20. 填空题:The __________ (历史研究) can influence current events.21. 选择题:What do you call a person who teaches?A. DoctorB. TeacherC. EngineerD. Chef22. 听力题:Noble gases are found in group ______ of the periodic table.23. 听力题:The ______ helps with the regulation of body temperature.24. 听力题:The study of how rocks form and change is known as ______ geology.25. 填空题:This is my favorite . (这是我最喜欢的。
银川2024年05版小学五年级上册英语第二单元真题(含答案)考试时间:80分钟(总分:110)B卷考试人:_________题号一二三四五总分得分一、综合题(共计100题)1、听力题:A _______ is used to measure the amount of heat produced in a reaction.2、听力题:A _______ can help to visualize the motion of particles in a fluid.3、听力题:A ______ has a unique way of moving.4、听力题:__________ are used in the food industry for preservation.5、填空题:My brother is passionate about __________ (科学).6、What is the value of 3 + 3 × 3?A. 9B. 12C. 15D. 18答案:B7、填空题:The ________ has a long neck.8、How do you say "fish" in French?A. PoissonB. PescadoC. FischD. PesceA kitten can be very ______ (调皮).10、填空题:My friend is __________ (热心的) and helpful.11、听力题:The capital of Iceland is _______.12、听力题:My mom makes the best _____ (soup/salad).13、What do you call the language spoken in Brazil?A. SpanishB. PortugueseC. FrenchD. English答案:B14、听力题:The chemical symbol for neon is _______.15、填空题:A ______ (花卉市场) offers a variety of blooms.16、听力题:The chemical symbol for tellurium is ______.17、填空题:Wildflowers grow __________ (自然) in the fields.18、填空题:I hope to design a new ________ (玩具名) that everyone will love. It would be very ________ (形容词)!19、Which bird is known for its colorful feathers?A. SparrowB. PeacockC. PenguinD. Crow答案:B20、听力题:I see a squirrel in the ___. (park)I enjoy listening to ________ (音乐) while I do my homework. It helps me ________ (放松).22、填空题:The _____ (garden) is full of colorful flowers.23、填空题:_____ (绿化) helps improve air quality.24、听力题:The capital of India is __________.25、听力题:The __________ can change based on geological activity.26、What is the term for a group of galaxies held together by gravity?A. Galaxy ClusterB. SuperclusterC. Galaxy GroupD. Cosmic Cluster27、填空题:He is a _____ (博士) who teaches at a university.28、Which vegetable is orange and crunchy?A. PotatoB. CarrotC. SpinachD. Tomato答案:B29、听力题:My cousin is very good at ____ (science).30、填空题:We have a ______ (丰富的) library collection.31、听力题:A __________ is a mixture that can be separated by centrifugation.32、填空题:My brother is great at ____.33、What do you call a baby ostrich?A. ChickB. CalfC. KidD. Hatchling34、选择题:How many continents are there?A. FiveB. SixC. SevenD. Eight35、填空题:The _____ (magnolia) tree blooms in spring.36、What do you call a series of connected mountains?A. RangeB. HillC. ValleyD. Plain答案:A37、听力题:A liquid that can dissolve a solute is called a ________.38、What do we call the imaginary line that divides the Earth into the Northern and Southern Hemispheres?A. EquatorB. Prime MeridianC. Tropic of CancerD. Tropic of Capricorn答案:A39、What is the most spoken language in the world?A. EnglishB. MandarinC. SpanishD. Hindi答案:B40、What do you call a person who helps others in need?A. PhilanthropistB. BenefactorC. VolunteerD. All of the above答案:DMy sister is a good ________.42、填空题:A __________ (栽培) can be both fun and educational.43、听力题:A _______ can provide a lovely fragrance to your home.44、What is the term for the study of human societies and cultures?A. SociologyB. AnthropologyC. PsychologyD. History45、听力题:The flowers are _____ in the garden. (blooming)46、填空题:On weekends, I often set up a ________ (名词) with my toys and pretend they are havinga party.47、填空题:A _____ (水生植物) can live in ponds and lakes.48、填空题:I like to collect ________ (邮票) from different places.49、What do we call the science of studying the stars and planets?A. BiologyB. ChemistryC. AstronomyD. Physics答案: C50、听力题:I saw a ______ at the zoo. (lion)51、What is the capital of Lithuania?a. Vilniusb. Kaunasc. Klaipedad. Šiauliai答案:aIn the garden, the ______ (玫瑰) are blooming. They come in many ______ (颜色) like red, pink, and yellow.53、听力题:The study of compounds containing carbon is called ______ chemistry.54、What is the name of the fairy tale character who had a long braid?A. CinderellaB. RapunzelC. Snow WhiteD. Belle55、听力题:The _____ (舞蹈) is graceful.56、of the Berlin Wall occurred in __________ (1989). 填空题:The Fren57、听力题:The capital of Syria is _______.58、听力题:The _______ of a pendulum is affected by its length.59、填空题:Napoleon Bonaparte was a leader from ________.60、Which animal is known for its ability to change color?A. ChameleonB. FrogC. PenguinD. Snake答案:A61、听力题:The man is very ________.62、听力题:My ______ is a talented actor.63、What do we call the process of breaking down food into energy?A. DigestionB. AbsorptionC. MetabolismD. Ingestion答案:C64、填空题:I have a favorite ______ (颜色), which is blue because it reminds me of the sky.65、听力题:The clock is ________ ticking.66、What is the capital of Egypt?A. CairoB. AlexandriaC. LuxorD. Giza67、填空题:We visit the ______ (博物馆) to learn about art.68、What is the name of the popular board game where you try to take over the world?A. RiskB. MonopolyC. Settlers of CatanD. Clue答案: A69、What do we call a place where wild animals are protected?A. ZooB. SanctuaryC. FarmD. Park答案:B70、What is the color of grass?A. RedB. BlueC. GreenD. Yellow答案: C. Green71、填空题:My brother is my silly _______ who keeps me laughing.72、Which animal is known for its ability to swim fast?A. DogB. DolphinC. CatD. Elephant答案:B73、What do we call a house made of ice?A. IglooB. CabinC. CottageD. Hut答案:A74、填空题:My ________ (玩具) can be used for storytelling.75、填空题:My sister has a fluffy _______ (我妹妹有一只毛茸茸的_______).76、听力题:My favorite game is ________.77、选择题:What is the capital of Latvia?A. RigaB. VilniusC. TallinnD. Kaunas78、填空题:I love the colors of ______ (秋天) when the leaves change. It’s a beautiful sight to see.79、听力题:I see a _____ butterfly in the garden. (beautiful)80、填空题:I enjoy collecting _____ from parks.81、What is the main purpose of the respiratory system?A. To digest foodB. To circulate bloodC. To provide oxygenD. To filter waste答案: C. To provide oxygen82、选择题:What do we call a person who studies the weather?A. MeteorologistB. ClimatologistC. GeologistD. Biologist83、听力题:The _____ (牛) is in the field.84、填空题:The artist held an _____ (展览) of his work.85、填空题:I saw a ________ (鸟) in the tree.86、What is the capital of Vanuatu?A. Port VilaB. LuganvilleC. VilaD. Santo答案:A87、听力题:She likes to ______ with her friends. (play)88、填空题:The __________ (地理影响) has shaped human activity.89、Which animal is known for its long neck?A. ElephantB. GiraffeC. RhinoD. Hippo90、听力题:A ______ helps to protect against predators.91、How do you say "你好" in English?A. HelloB. GoodbyeC. PleaseD. Thank you92、What is the opposite of 'fast'?A. SlowB. QuickC. SpeedyD. Rapid答案:A93、What do we call the part of the plant that produces flowers?A. RootB. LeafC. StemD. Blossom答案:C94、听力题:The _______ produces beautiful blooms each year.95、填空题:A _____ is a body of water that is less salty than the ocean.96、填空题:The gerbil is a type of _______ (宠物) rodent.97、What do bees collect from flowers?a. Nectarb. Pollenc. Honeyd. Wax答案:a98、填空题:I like to _______ with my friends.99、填空题:My cousin has a __________仓鼠. (可爱的)100、填空题:Cacti are special because they can store ______ (水) for long periods.。
苏中五校校际联考2015年春学期第三次考试15级英语试卷(试卷、答案、答题纸)苏中五校校际联考2015年春学期第三次考试15级英语试卷(分值:100分考试时间:120分钟)一、单项选择(共30小题,每小题1分,满分30分)1. English is ________ useful language in the world.A. aB. anC. theD. /2. ---- Is that you, John?---- Yes. ________ John speaking. Who is that?A. I amB. He isC. This isD. That is3. There is _________ I want to tell you.A. something importantB. important somethingC. important the somethingD.the important something4. Mary gets up early _____ Sunday mornings.A. inB. forC. atD. on5. You ________ smoke here. This is no-smoking area.A. mustB. mustn’tC. needn’tD. shouldn’t6. ----- ______ is your mother?----- She feels better and better.A. WhatB. WhoC. HowD. Which7. _______ he will attend the meeting is not clear.A. WhetherB. IfC. ThatD. /8. ---- What about going to a movie?---- That’s ______.A. good ideaB. rightC. an ideaD. all right9. Making preparations ___very important for camping.A. areB. hasC. isD. have10. Would you mind ______ the window?A. me closeB. my closeC. mine closeD. my closing11. She ____ his invitation to the ball but didn’t____ it.A. receive ; acceptB. accepted ; receiveC. received ; acceptD. accept ; receive12. The students in Grade Three are made ___ten hours a day.A. studyB. to studyC. studiedD.studying13. By the time I graduated I _____5000 Englishwords.A. have learnedB. have been learnedC. had learnedD. had been learned14. The patient should ________ to the hospital atonce.A. sendB. be sendC. be sentD. issent15. Could you tell me __________?A. where are you fromB. where you to befromC. where do you come fromD. where youare from16. Do you remember the days ______ we spendtogether?A. whenB. thatC. whereD. what17. ----- I am sorry but I can’t go there with you.----- __________. I can go there by myself.A. I am glad toB. It’s my pleasureC. It doesn’t matterD. Not at all18. It is never too late to learn, ______?A. is itB. isn’t itC. does itD. doesn’tit19. Your son is _______ honest boy that all of uslike him very much.A. such aB. so aC. such anD. so20. The old lady ______ us her spare bedroom for$300 per month.A. rentedB. hiredC. borrowedD.2lent21. The picture on the wall looks like better ________.A. in the distanceB. at the distanceC. at a distanceD. in a distance22. –Is this your book, Mike?–No. It must be __________________.A. someone elseB. else someoneC. someone’s elseD. someone else’s23. Marie _______a dress when she cut her finger.A. madeB. is makingC. makesD. was making24. To stay awake last night, he drank one cup of coffee after _____________.A. otherB. the otherC. anotherD. the others25. Most of the traffic accidents are _____________ high speed.A. because ofB. sinceC. thanks toD. due to26. My mother has had the clothes .A. is washedB. was washingC. to washD. washed27. It’s generous them to donate money to UNICEF.They think it importantthem to help poor children go to school.A. to, forB. for, ofC. of, toD. of, for28. --- do you go shopping with your mother?---I seldom do that.A. How oftenB. How soonC. How farD. How much29. The Olympic Games, in 776B.C, didn’t include women players until 1912.A. first playingB. to be first plyaedC. first playedD. to be first playing30. Robert is said abroad, but I don’t know what country he studied in.A. to have studiedB. to studyC. to be studyingD. to have been studying二、完形填空(共30小题,每小题0.5分,共15分)先通读下面的短文,掌握大意,然后在每小题的A、B、C、D四个选项中选出最佳选项。
2015年葫芦岛市普通高中高三二模考试理科综合参考答案及评分标准选择题 1.A 2.B 3.C 4.D 5.C 6.A 7.C 8.A 9.A 10.B 11. C 12.D 13. B 14. D 15. D 16. A 17 .C 18 .B 19. AC 20.BD 21. ACD 非选择题22(1)2.165(2.163~2.167)(2分),1.20(2(2)1.3(2分) 23(1)CADBFE (2分)错一处不给分 (2)串联(2分)、7300(2分) (3)如图连接(3分)错一处不给分24(14分)(1)由乙图可知,0.14s 末物块离开弹簧,由受力分析 设摩擦力为f, 离开弹簧上升时的加速度为a 1,1sin ma mg f =+θ ………………(3分)解得f=2N ………………(2分) (2)设从0.14s 末经时间t 1速度减为0,111t a v = ………………(1分)解得t 1=0.5s ………………(1分) 上升距离1112t v s ⋅=………………(1分) 解得m s 11= ………………(1分) 从0.64s 末返回匀加速直线运动,设加速度为a 2,2-sin ma f mg =θ ………………(1分)解得a 2=4m/s 2经过t 2=0.1s 时间物块下滑距离为s 2,222221t a s =………………(1分) 解得s 2=0.02m ………………(1分) 则物块在0.14~0.74s 时间内摩擦力做功)(21s s f w +-= ………………(1分)图23-3代入数据解得J w 04.2-= ………………(1分)25(18分)(1)带电微粒在电场中加速,设微粒获得0v 速度M 、N两极板间所加电压为U 0, 由20021mv qU =………………(2分) 解得qmv U 220= ………………(2分)(2)设微粒经过一次偏转直接到达折线的顶点P 点射入磁场的速度为1v ,微粒做圆周运动的半径为R,洛伦兹力充当向心力 Rvm B qv 211= ………………(2分)由几何关系 d R =045cos 2 ………………(2分) 联立解得mqBdv 221=………………(2分) (3)若微粒既能途经P 点还能到达Q 点,且到Q 点时速度方向沿x 轴正方向,设M 、N两极板间所加的电压为U,微粒获得速度为v ,微粒做圆周运动的半径为r , 由动能定理 221mv qU =………………(1分) 洛伦兹力充当向心力 rv mB qv 2= ………………(1根据运动对称性,微粒能从P 点到达 Q 点,应满足 d n r =⋅245cos 20(...321、、=n ) ………………(4分) 解得...)321(16q 222、、==n mnd B U ………………(2分)【或者根据运动对称性,微粒能从P 点到达 Q 点,应满足 d n r =⋅045cos 2(取偶数、、、...8642=n )………………(4分) 解得)...8642(4q 222取偶数、、、==n mnd B U ………………(2分)】26.(14分)(1)a b(2分)(2)CO2 + Li4SiO4Li2CO3 + Li2SiO3(2分)(3)CO2(g) + H2O(g) = CO(g) + H2(g) +O2(g) ΔH = +524.8 kJ·mol-1(2分)(4)①氧化(2分)② CO2 + 2e- = CO + O2-(2分)(5)(5)5CO+11H 2C5H12+5H2O(2分)增大压强;及时将生成的C5H12分离出去(2分)27.(14分)(1)Al2O3+6H+=2Al3++3H2O (2分)提高酸的浓度(或适当提高反应温度或搅拌下进行反应或粉碎)(2分)(2)取少量母液Ⅰ,滴加KSCN溶液,无血红色,则Fe3+已水解完全(2分)(3)Fe(OH)3(1分)(4)①CO2(或Na2CO3)(2分)②AlO2—+CO2+2H2O=Al(OH)3↓+HCO3—(或2AlO2—+CO2+3H2O=2Al(OH)3↓+CO32—)(2分)(5)设生成Al(OH)3的质量为xAl2O3------ 2Al(OH)3102g 156g1×106g x102g×x=156g×1×106g 解得x=1.53×106g=1.53t (3分)28.(15分)(1)① Ag2SO4 (2分)②有黑色固体(Ag)生成,加入KSCN溶液后变红(2分)(2)① Fe2+ -e-=Fe3+(2分)②负(2分)③ Fe2++Ag+Fe3++Ag(2分)(3)①不能(1分)因为Fe(NO3)3溶液呈酸性,酸性条件下NO3-也可能氧化Ag。
15周2答案1. A(A. yùn xù tíhān B. fěi fēi fěi fēi C. Xuàn xún xùn xùn D. huì kuì kuì kuì)2. B(A. 帐→账C. 杆→竿D. 以→倚)3. B(A. 此题考查连词“从而”“进而”的辨析。
“从而”重在表目的关系或因果关系;而“进而”重在表递进关系,表示在前一个行动的基础上进一步的行动。
B. “不但……也……”是表示递进关系的,重点突出后面的内容;而“既……又……”是表示并列关系的;此句应用表递进关系的关联词,以强调偷税对个人的危害,不能用表并列关系的关联词。
C. “实质”是人们对事物的本质的认识,是人思维的结果;“性质”是事物的物质属性,非人的意志而转移的。
D. “掩饰”着重于手段虚伪,文过饰非,是贬义词;“掩盖”可泛指一般的遮盖,也指对错误缺点的隐藏,是中性词)4. C(A. 釜底抽薪,比喻从根本上解决问题。
此处应用“雪上加霜”。
B. 瑕不掩瑜,比喻缺点掩盖不了优点,缺点是次要的,优点是主要的。
但在该句中,相对“故事情节和演员的表演”,“音乐”不能算是影片的主要方面。
C. 翻云覆雨,比喻反复无常或者玩弄手段。
D. “抛砖引玉”,谦词,比喻用粗浅的、不成熟的意见引出别人高明的、成熟的意见,这个成语的主语只能是第一人称)5. D(A. 成分残缺,缺少主语,可删去“通过”或“使”。
B. 句式杂糅,可改为“有相当部分高血压病就是生活压力大、工作紧张诱发的”。
C. 语序不当,应改为“对于维护改革发展稳定大局,实现‘十一五’规划确定的目标任务,推进全面建设小康社会进程”)二、(9分)6. A(并不是所有的艺术批评都能决定和左右。
犯了绝对化的毛病,夸大了艺术批评的作用)7. C(犯了无中生有的错误)8. D(“只要……就”改变了原文的逻辑事理关系)14. ①一个形单影只、陷入对亡妻无限哀思的词人的形象。
泌阳一高2013—2014学年高三第十五次周考(实验班)理科综合试题命题老师:赵景泉禹蕾王勇审题老师:刘军刘静王书提考试时间:150分钟试卷满分:300分本卷分第I卷(选择题)和第II卷(非选择题)两部分。
可能用到的相对原子质量: H=1 N=14 O=16 S=32 Al=27 Cu=64 Fe=56 Ba=137第I卷(选择题共126分)1. 实验材料的正确选择是实验成功的前提。
下列实验的实验材料(对象)及优点描述正确的是起如此大负面影响是因为肉毒杆菌是一种生长在缺氧环境下的细菌,在罐头食品及密封腌渍食物中生存能力极强,其繁殖过程中会分泌一种蛋白质类的肉毒毒素,该毒素能引起特殊的神经中毒症状,致残率、病死率极高。
据此分析下列有关说法正确的是A.肉毒杆菌是异养生物,有氧环境中能量大部分来自线粒体B.肉毒毒素的合成和分泌过程需要内质网和高尔基体的参与C.与呼吸道相比,消化道更容易被肉毒杆菌感染而致病D.肉毒杆菌细胞中没有染色体,其增殖方式为无丝分裂3. 很多蔬菜水果中含有丰富的维生素C。
某科学家在癌细胞培养液中加入维生素C(实验组)以研究其对癌细胞生长的影响。
培养过程中定时检测处于分裂期细胞的百分比,得到如图曲线。
据此分析,下列有关说法正确的是A.癌细胞的出现是抑癌基因发生基因突变变成原癌基因并表达的结果B.实验组细胞在10~11h时对培养液中含氮、磷的物质吸收速率最快C.10h时对照组中所有细胞的染色体数和DNA数均为体细胞的2倍D.维生素C对癌细胞分裂间期的抑制作用比对分裂期的抑制作用明显4. 20世纪60年代后,医院开始用淀粉酶替代酸来分解淀粉。
如图所示为某同学探究不同pH条件下淀粉酶对淀粉的分解作用的实验结果。
据图分析,下列说法不正确的是A.应先将各组试管溶液pH分别调到设定数值再混合B.pH为3和9的两只试管中的淀粉酶的活性相同C.pH为13的试管调到pH为7后淀粉含量基本不变D.淀粉酶降低淀粉分解反应活化能的作用比酸更显著5. 有生物学家在某海岛上发现多年前单一毛色的老鼠种群演变成了具有黄色、白色和黑色三种毛色的种群。
2023年全国英语等级考试十五级真题及答案2023年全国英语等级考试十五级真题及答案Introduction2023年全国英语等级考试已经成为许多英语学习者的目标。
本文将为大家提供2023年英语等级考试十五级的真题及答案,旨在帮助学生更好地准备和应对考试。
Listening SectionPart A: Questions 1-5Directions: In this part of the test, you will hear five short conversations. After each conversation, you will hear a question and three possible answers. Choose the best answer and mark it on your answer sheet.1. A: Could you please pass me the salt?B: Sure, here you go.Q: What does the man do?2. A: I'm going to the library. Do you want to come with me?B: Sorry, I have a meeting in an hour.Q: What does the woman say?3. A: How was your trip to Paris?B: It was fantastic! I visited all the famous landmarks.Q: What can we infer about the woman?4. A: The concert tonight was amazing, wasn't it?B: Yes, it was absolutely incredible!Q: What do the speakers think about the concert?5. A: I'm having trouble understanding this math problem.B: Would you like me to explain it to you?Q: What does the woman offer to do?Part B: Questions 6-10Directions: In this part of the test, you will hear a longer conversation. After the conversation, you will hear some questions. Choose the best answer and mark it on your answer sheet.6. A: I'm thinking of starting my own business. What advice do you have?B: Well, first of all, you need to create a detailed business plan.Q: What does the man suggest?7. A: Can you believe it? I won the lottery!B: That's incredible! What are you going to do with the money?Q: What are the speakers discussing?8. A: I'm considering changing my major. What do you think about that?B: It's important to choose a major that aligns with your interests and goals.Q: What does the woman recommend?9. A: I'm thinking of buying a new car. Any suggestions?B: I recently purchased a hybrid, and I couldn't be happier with it.Q: What is the man's opinion on hybrid cars?10. A: I failed my math test again. I don't know what to do.B: Don't worry, I can help you study and understand the material better.Q: What does the woman offer to do?Reading SectionPart A: Questions 11-15Directions: In this part of the test, you will read five short passages. After each passage, you will see five statements. Decide if each statement is true or false according to the information in the passage. Mark your answer on the answer sheet.Passage 1Summer is the perfect time to visit the beach and enjoy the sunshine. Whether you want to swim, build sandcastles, or simply relax, the beach offers something for everyone.11. Summer is the best season to visit the beach.12. Building sandcastles is the only activity at the beach.13. The beach is a popular destination for people of all ages.14. Swimming is the most popular activity at the beach.15. The beach is a great place to unwind and de-stress.Part B: Questions 16-20Directions: In this part of the test, you will read a longer passage. After the passage, you will see some questions. Choose the best answer and mark it on your answer sheet.Passage 2The importance of sleep cannot be overstated. It plays a vital role in maintaining good health and overall well-being. Lack of sleep can lead to fatigue, difficulty concentrating, and a weakened immune system.16. Sleep has no impact on health.17. Lack of sleep can cause difficulties in focusing.18. Getting enough sleep strengthens the immune system.19. Sleep has no effect on overall well-being.20. Fatigue is a symptom of sleep deprivation.Writing SectionPart A: EssayDirections: In this part of the test, you will write an essay on the given topic. Your essay should be well-structured and organized, with a clear introduction, body, and conclusion. Use appropriate vocabulary and grammar to express your ideas.Essay Topic: The Importance of Environmental ProtectionIn recent years, environmental issues have become a global concern. Discuss the importance of environmental protection and propose some practical ways individuals can contribute to a healthier planet.Conclusion准备2023年英语等级考试是一个艰巨的任务,但是通过准确回答听力和阅读部分的题目,并以流畅的英语写出优秀的作文,我们可以更好地应对考试挑战。
中五校校际联考2015年春学期第三次考试15级英语试卷(分值:100分考试时间:120分钟)一、单项选择(共30小题,每小题1分,满分30分)1. English is ________ useful language in the world.A. aB. anC. theD. /2. ---- Is that you, John?---- Yes. ________ John speaking. Who is that?A. I amB. He isC. This isD. That is3. There is _________ I want to tell you.A. something importantB. important somethingC. important the somethingD.the important something4. Mary gets up early _____ Sunday mornings.A. inB. forC. atD. on5. You ________ smoke here. This is no-smoking area.A. mustB. mustn’tC. needn’tD. shouldn’t6. ----- ______ is your mother?----- She feels better and better.A. WhatB. WhoC. HowD. Which7. _______ he will attend the meeting is not clear.A. WhetherB. IfC. ThatD. /8. ---- What about going to a movie?---- That’s ______.A. good ideaB. rightC. an ideaD. all right9. Making preparations ___very important for camping.A. areB. hasC. isD. have10. Would you mind ______ the window?A. me closeB. my closeC. mine closeD. my closing11. She ____ his invitation to the ball but didn’t ____ it.A. receive ; acceptB. accepted ; receiveC. received ; acceptD. accept ; receive12. The students in Grade Three are made ___ ten hours a day.A. studyB. to studyC. studiedD. studying13. By the time I graduated I _____5000 English words.A. have learnedB. have been learnedC. had learnedD. had been learned14. The patient should ________ to the hospital at once.A. sendB. be sendC. be sentD. is sent 15. Could you tell me __________?A. where are you fromB. where you to be fromC. where do you come fromD. where you are from16. Do you remember the days ______ we spend together?A. whenB. thatC. whereD. what17. ----- I am sorry but I can’t go there with you.----- __________. I can go there by myself.A. I am glad toB. It’s my pleasureC. It doesn’t matterD. Not at all18. It is never too late to learn, ______?A. is itB. isn’t itC. does itD. doesn’t it19. Your son is _______ honest boy that all of us like him very much.A. such aB. so aC. such anD. so20. The old lady ______ us her spare bedroom for $300 per month.A. rentedB. hiredC. borrowedD. lent21. The picture on the wall looks like better ________.A. in the distanceB. at the distanceC. at a distanceD. in a distance22. –Is this your book, Mike?–No. It must be __________________.A. someone elseB. else someoneC. someone’s elseD. someone else’s23. Marie _______a dress when she cut her finger.A. madeB. is makingC. makesD. was making24. To stay awake last night, he drank one cup of coffee after _____________.A. otherB. the otherC. anotherD. the others25. Most of the traffic accidents are _____________ high speed.A. because ofB. sinceC. thanks toD. due to26. My mother has had the clothes .A. is washedB. was washingC. to washD. washed27. It’s generous them to donate money to UNICEF.They think it importantthem to help poor children go to school.A. to, forB. for, ofC. of, toD. of, for28. --- do you go shopping with your mother?---I seldom do that.A. How oftenB. How soonC. How farD. How much29. The Olympic Games, in 776B.C, didn’t include women players until 1912.A. first playingB. to be first plyaedC. first playedD. to be first playing30. Robert is said abroad, but I don’t know what country he studied in.A. to have studiedB. to studyC. to be studyingD. to have been studying二、完形填空(共30小题,每小题0.5分,共15分)先通读下面的短文,掌握大意,然后在每小题的A、B、C、D四个选项中选出最佳选项。
2023-2024学年山东省青岛十五中学中考二模英语试题含答案注意事项:1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。
2.回答选择题时,选出每小题答案后,用铅笔把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,再选涂其它答案标号。
回答非选择题时,将答案写在答题卡上,写在本试卷上无效。
3.考试结束后,将本试卷和答题卡一并交回。
Ⅰ. 单项选择1、I enjoy the party very much,but I ________ go home. It's too dark.A.have to B.may C.mustn't D.can't2、If you ________ your homework now, you ________ it before dinner.A.start; finish B.will start; will finishC.start; will finish D.will start; finish3、There are ________ teachers in our school, ________of them are women teachers.A.two hundreds ; three fourth B.two hundred ; three fourthsC.two hundred; three forths D.two hundreds; three fourths4、The earth goes ________ the sun.A.around B.through C.between D.across5、Animals as our good friends because they help us a lot.A.treat B.are treated C.treated D.were treated6、Nowadays, some robots are very humanlike. They even dance.A.can B.must C.need D.have to7、Her voice is so weak that I could ________ hear anything.A.almost B.nearly C.hard D.hardly8、Yoga is a kind of sport people around the world like now. Everyone, young and old does it.A.that B.who C.whose9、— Who the classroom tomorrow, Tony?— Our group.A.will clean B.cleans C.cleaned D.clear10、—Mike, can you play soccer with us on Saturday afternoon?—, but I promised to fly kites with Jack.A.Sure B.Yes, I can C.I’d love to D.No problemⅡ. 完形填空11、Life will be peaceful if you always do kind things.I teach my 1 to develop ahabit for helping others.We live in a rural(乡村) area.Most of 2 we see is beautiful nature.One of the exceptions( 例外)to the beauty is the rubbish that some people throw out of their car windows. 3 there are no necessary public services, such as rubbish collection.A helping behavior that I often 4 with my daughters is picking up rubbish in our neighborhood. My daughters often have a match to see who can collect the most rubbish. They will often say to me in an excited voice,“There’s some 5 ,—Daddy,stopthecar!”W ithout thinking 6 ,we will often get out of our car and pick it up. Though it may seem strange, we do it. In fact, we enjoy it. We pick up rubbish in parks, on side walks, almost anywhere.One dayI saw a man I had never met before picking up rubbish on the road.I 7 .He Raised his head and said to me with a smile,“I saw you doing this with your family.It’s a good idea to 8 our natural world.”There are many 9 ways to provide kindness for others. We may share a dinner with a beggar, visit lonely old people in the nursing home, or help the blind cross the street. We can think of something that can be finished easily but helpful.It is fun,self-satisfying,andw hat’s more,it can set a good example.Helping others is helping10 . Remember it,please!1.A.daughters B.friends C.students D.sons2.A.which B.what C.how D.where3.A.So B.And C.While D.Or4.A.receive B.travel C.carry D.practice5.A.bikes B.cars C.rubbish D.nature6.A.some B.any C.more D.less7.A.stopped B.looked C.talked D.asked8.A.break B.protect C.plan D.control9.A.other B.another C.else D.too10.A.himself B.themselves C.ourselves D.yourselfⅢ. 语法填空12、阅读下面的短文,用括号内所给单词的适当形式填空,必要时可加助动词。
重庆市合川大石中学高2015届数学(理科)周考(二)答案一选择题:1----5 CDADC 6------10 ADBCA二填空题: 11 0,6⎡⎤⎣⎦ 12 92 13 1,3⎛⎫+∞ ⎪⎝⎭14 01⋅ 15 4 16 (](,0)0,1-∞13、 设椭圆与双曲线的半焦距为c ,PF 1=r 1,PF 2=r 2. 由题意知r 1=10,r 2=2c ,且r 1>r 2,2r 2>r 1, ∴2c <10,2c+2c >10,⇒552c <<.⇒1<225c <4, ∴e 2= 11222221025c c c car r c c===---; e 1= 21222221025c c c c a r r c c ===+++. ∴e 1•e 2= 2225c c -= 2112531c >-。
三解答题:17题【考点】: 正弦函数的图象;正弦定理. 【专题】:三角函数的求值;三角函数的图像与性质;解三角形.【分析】: (Ⅰ)由图可知,A=1,T=π,可求ω=2,由函数f (x )=Asin (ϖx+φ)过点(,0),可得φ的值,从而可得f (x )解析式. (Ⅱ)由已知先求B 的值,又f (x )=sin (2x+),由0,可得0≤f (x )≤1,即可求f (x )在(0,B]上的值域. 【解析】: 解:(Ⅰ)由图可知,A=1,T=π,则ω=2,…2分 ∵函数f (x )=Asin (ϖx+φ)过点(,0)∴φ=…5分∴f (x )=sin (2x+)…6分 (Ⅱ)由=,得.则cosB=即B=…(10分)又f (x )=sin (2x+),由0,则0<2x +< π∴ 0≤sin (2x+)≤1…(12分)故0≤f (x )≤1,即值域是[0,1]…(13分)【点评】: 本题主要考察了正弦函数的图象和性质,正弦定理的应用,属于基本知识的考查. 18题【解析】(Ⅰ)①互换的黑球,此时甲盒子恰好有2黑球的事件记为A 1,则:1122111451()5C C P A C C ⋅==⋅ …(2分)②互换的是红球,此时甲甲盒子恰好有2黑球记为A 2,则:1123211453()10C C P A C C ⋅==⋅ …(5分)故甲盒中有2个黑球的概率12131()()5102P P A P A =+=+= …(6分)(2)设甲盒中黑球的个数为ξ, 则:112311453(1)10C C P C C ξ⋅===⋅;1(2)2P ξ==;112211451(3)5C C P C C ξ⋅===⋅ …(10分)因而ξ的分布列为: ∴ E ξ=103×1+21×2+51×3=1019 …(13分) 19题【解析】19、(12分)(1)因为DP ⊥平面ABCD ,所以DP AC ⊥, 1分因为四边形A B C D 为菱形,所以B D A C ⊥ 3分又,.BD PD D AC PBD =∴⊥平面因为.DE PBD AC DE ⊂∴⊥平面,6分 (2)连接,OE 在PBD ∆中,//,EO PD所以,EO ABCD ⊥平面分别以,,OA OB OE 所在直线为x 轴,y 轴,z 轴建立如图所示的空间直角坐标系,设,PD t =则()1,0,0A ,()()()0,3,0,1,0,0,0,0,,0,3,2t B C E P t ⎛⎫-- ⎪⎝⎭. 7分由(1)知,平面PBD 的一个法向量为1n (1,0,0), 设平面PAB 的一个法向量为)(z y x ,,2n ,则⎪⎩⎪⎨⎧=⋅=⋅0021AP n AB n 得3030x y x y tz ⎧-+=⎪⎨--+=⎪⎩,令1y =,得233,1,.t ⎛⎫= ⎪ ⎪⎝⎭2n 9分 因为二面角A PB D --的余弦值为155,所以2315cos ,5124t==+12n n , 解得23t =或23t =-(舍去),所以()0,3,23P - 11分 设EC 与平面PAB 所成的角为θ.因为()1,0,3EC =--,()3,1,1=2n ,∴2315sin |cos ,|525EC θ===2n 所以EC 与平面PAB 所成角的正弦值为155. 13分 20题【考点】: 导数在最大值、最小值问题中的应用;函数的零点;利用导数研究函数的单调性.OE BDCAPxyz【专题】: 导数的综合应用.【分析】: (1)当a=0时,f (x )≥g (x )在(0,+∞)上恒成立⇔,设φ(x )=,则f (x )≥g (x )在(0,+∞)上恒成立⇔m ≤φ(x )min ,利用导数研究函数φ(x )的单调性极值最值即可; (2)存在满足题意.f ′(x )=2(1+x )﹣=,函数f (x )的定义域是(﹣1,+∞),对m分类讨论即可得出单调性,而函数g (x )在(﹣1,+∞)上的单调递减区间是,单调递增区间是,解出即可.【解答】: 解:(1)当a=0时,f (x )≥g (x )在(0,+∞)上恒成立⇔,设φ(x )=,则f (x )≥g (x )在(0,+∞)上恒成立⇔m ≤φ(x )min ,∵φ′(x )=,当x ∈(0,e ﹣1)时,φ′(x )<0;当x ∈(e ﹣1,+∞)时,φ′(x )>0.故φ(x )在x=e ﹣1处取得极小值,也是最小值,即φ(x )min =φ(e ﹣1)=e ,故m ≤e . (2)存在满足题意.f ′(x )=2(1+x )﹣=,函数f (x )的定义域是(﹣1,+∞),若m ≤0,意.f ′(x )≥0,函数f (x )在(﹣1,+∞)上单调递增,不合题意; 当m >0时,由f ′(x )>0,得2(1+x )2﹣m >0,解得x >﹣1+或x <﹣1﹣(舍去),故m >0时,函数f (x )的增区间是,单调递减区间是, 而函数g (x )在(﹣1,+∞)上的单调递减区间是,单调递增区间是,故只需=﹣,解得m=.【点评】: 本题考查了利用导数研究函数的单调性极值与最值,考查了恒成立问题的等价转化方法,考查了分类讨论的思想方法,考查了推理能力与计算能力,属于难题.21、(12分)(Ⅰ)连结QF ,根据题意,|QP|=|QF|,则|QE|+|QF|=|QE|+|QP|=4||23EF >=,故动点Q 的轨迹Γ是以E ,F 为焦点,长轴长为4的椭圆. 2分设其方程为22221(0)x x a b a b+=>>,可知2a =,223c a b =-=,则1b =, 3分所以点Q 的轨迹Γ的方程为2214x y +=. 4分(Ⅱ)设直线l 的方程为m kx y +=,),(11y x A ,),(22y x B由⎪⎩⎪⎨⎧=++=1422y x m kx y 可得0)1(48)41(222=-+++m kmx x k ,由韦达定理有:⎪⎪⎩⎪⎪⎨⎧+-=+-=+222122141)1(4418k m x x k km x x 且0)41(1622>-+=∆m k5分 ∵21,,k k k 构成等比数列,∴212k k k ==2121))((x x m kx m kx ++,即:0)(221=++m x x km由韦达定理代入化简得:412=k .∵ 0>k ,∴21=k .7分 此时0)2(162>-=∆m ,即)2,2(-∈m .又由A O B 、、三点不共线得0m ≠,从而(2,0)(0,2)m ∈-. 故d AB S ⋅=||2122121||||121km x x k +⋅-+= ||4)(2121221m x x x x ⋅-+=||22m m ⋅-= 9分 ∵22221212144x x y y +=+= 则 =+21S S )(422222121y x y x +++⋅π)24343(42221++⋅=x x π2]2)[(16321221ππ+-+⋅=x x x x 45π=为定值. 11分 ∴S S S 21+⋅=45π||212m m ⋅-5π4≥∴当且仅当1m =±时等号成立. 综上:12S S S +的取值范围是5π[)4+∞,. 12分22、解析:(1)设数列{}n a 的公差为d ,由题意得11251015a d a d +=⎧⎨+=⎩,解得111a d =⎧⎨=⎩,∴n a n =,∴22n n n S +=。
由题意得1112n nb n b n ++=⋅,叠乘得121121112()()21212n n n n n n n b b b n n n b b b b b n n ----=⋅⋅⋅⋅=⨯⨯⨯=--.由题意得231232222n n nT =++++① 234111231222222n n n n nT +-=+++++ ②②—① 得:11111(1)11111222112248222212n n n n n n n n n T +++-+=++++-=-=---∴222n n n T +=-(2)由上面可得22(2T )22n n n S n n n -+=+,令2()2nn nf n +=,则(1)1f =,3(2)2f =,3(3)2f =,5(4)4f =,15(5)16f =。
下面研究数列2()2n n n f n +=的单调性, ∵2211(1)1(1)(2)(1)()222n n n n n n n n n f n f n +++++++-+-=-=,∴3n ≥时,(1)()0f n f n +-<,(1)()f n f n +<,即()f n 单调递减。
∵集合M 的子集个数为16,∴M 中的元素个数为4,∴不等式22nn nλ+≥,n N +∈解的个数为4, ∴15116λ<≤。