【精品】2018届九年级(下)中考模拟 英语试题
- 格式:docx
- 大小:754.94 KB
- 文档页数:9
九年级英语模拟试题及答案2018年九年级英语模拟试题及答案2018年中考临近,相关的中考试题也陆续公布了,下面是店铺整理的2018年中考模拟试题,希望能帮到你。
2018年度第二学期第二阶段学业质量监测试卷九年级选择题(共40分)一、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。
1. The solar-powered airplane Solar Impulse 2 arrived in Nanjing ______ April, 2015.A. inB. onC. atD. to2. Eric will never win a gold in the swimming race ______ he works hard.A. ifB. whenC. unlessD. since3. If ______ is a high-stress job, it is important that you learn how to relax after a busy day.A. youB. yourC. yoursD. yourself4. We’d better ______ subjects like age, weight or money while talking in Western countries.A. agreeB. avoidC. affordD. allow5. — ______ will I stay in Singapore during the summer holiday?— Let me check it for you. For two days.A. How muchB. How lon gC. How farD. How many6. Tony is ______ than his father, though he is only eleven years old.A. tallB. tallerC. tallestD. the tallest7. Everyone lent a hand so that the work ______ a week earlierthan I had planned.A. finishesB. has finishedC. is finishedD. was finished8. If you ______ go, at least wait until the storm is over.A. mustB. canC. willD. may9. It is reported that thousands of people ______ since a terrible earthquake hit Nepal.A. diedB. have diedC. have been deadD. will die10. — Paul shows little ______ in the piano competition.— Yes, but his mother insists that he should catch the chance.A. painB. causeC. situationD. interest11. Kevin was ______ late for school this morning. The bell rang right after he walked into the classroom.A. usuallyB. alreadyC. reallyD. nearly12. — ______ big lanterns! I like them very much!— Yes. They sell well at the Lantern Festival.A. HowB. WhatC. What aD. What an13. Mr Green felt surprised and wondered _______.A. when did she come back homeB. who did the cleaning this morningC. how could I get to the post officeD. why they finish the work so early14. Walk along the street and turn right at the second crossing. Which of the following is correct?A. B. C. D.15. — It is raining heavily! Will the rain last long?— _______. The weather report says it will be sunny tomorrow.A. I don’t think soB. It doesn’t matterC. I a greeD. Yes, of course二、完形填空(共10小题;每小题1分,满分10分)阅读下面短文,从短文后所给各题的四个选项 (A、B、C和D) 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。
人教版 2018年年九年级英语中考模拟试卷(满分 150 分,时间120 分钟)第一部分:基础知识运用(共两节,满分35 分)第一节:单项选择(共20 小题,每小题 1 分,满分 20 分)() 1.Happy birthday to you, Mary!--.级 A. Thanks a lot. B. The same to you.班C. You're welcome.D. It's very kind of you.() 2. A talk on Chinese history in the school hall next Monday.A.be givenB. has been givenC. will be givenD. will given()3.-- Must I return the book I borrowed last week before 6:00 pm?-- No, you.名 A.mustn't B.needn't C.shouldn't D.can't姓()4.--Do you mind if I smoke here?-- --. You can go to smoke in the next door.A.Yes, please.B.You'd better not.C.Not at all.D.Of course not.()5.-- --I'm very worried about tomorrow's math test. I'm afraid I can't pass 号this time.考-- --! I'm sure you can make it.A. No problem.B. That's right.C. Cheer up.D. Take it easy.()6.--Which would you like, rice or noodles?--is OK. I'm hungry.A.EitherB. BothC. NeitherD. All()7.This TV set is too loud, would you please?A.to turn it downB.turn it downC.turn down itD.to turn down it()8. Please keep quiet, I have to tell you .A. something specialB.anything specialC.special somethingD.special anything()9. Liu Xiang is one of runners in the world.A. famousB. more famousC. most famousD. the most famo()10. ―Are these your books?―No, they are not.A. IB. myC. mineD. me()11.Lesson is not so difficult as we think.A. NineB. NinthC. The NineD. The Ninth()12. Boys and girls, please stop so much noise. It,s time for clasA. to produceB. producingC. to makeD. making()13. There is no water in the cup,?A. is itB. is thereC. isn't itD. isn’ t there()14. There an English Evening next Friday.A. isB. hasC. will haveD. will be()15. Linda a lot since she entered Harvard University.A. changeB. has changedC. will changeD. changed1()16. ―Go and ask Mr. Brown for help.―But I don't know.A. where he livesB. where he liveC. where does he liveD. where is he living()17. My sister is going to look for another job the company offers him more money.A. besidesB. whenC. unlessD. after()18.―They have never been to Australia before.―.A. Neither do weB. Neither have weC. So we haveD. So have we()19.―has your mother worked in this factory?—Since 1995.A. How longB. How oftenC. How farD. How soon ()20. People under 21 are not to drink in the USA.A. allowB. allowedC. allowingD. allows第二节:完型填空(共15 小题,每小题 1 分,满分 15 分)A )阅读下面短文,从短文后各题所给的 A 、B、C、D 四个选项中,迁出可以填入空白处的最佳选项,并将其编号填入题前的括号内。
2018年中考英语九年级毕业模拟试题及答案九年级四月质量监测英语试题温馨提示:1、试卷共四个部分、七大题。
考试时间120分钟,满分120分。
2、听力与选择题的答案,用2B铅笔在答题卡上指定位置将答案标号涂黑。
如需改动,用橡皮擦干净后,再选涂其它答案标号。
答在试卷上无效。
3、非选择题的答案(含5665小题)用黑色中性笔直接在答题卡上作答。
第一部分听力测试Ⅰ. 听力测试(共三节,20小题,满分25分)第一节 : 听对话或描述,选图画。
听下面三段对话和两段描述。
从A、B、C 三幅图中选出正确的一幅。
每段材料仅读一遍。
(每小题1分,共5分) 1. 2. 3. 4. 5. A B C AB C A B C A B C A BC第二节:听对话,选答案。
听下面 4 段对话,根据对话内容,从 A、B、C 三个选项中选出最适当的答案。
每段对话读两遍。
(每小题 1 分,共 10 分)听第 6 段材料,完成 67 小题。
6. Where does the man want to go? A. To a cinema.B. To a library.C. To a park. 7. How long will it takethe man to get there by bus? A. 10 minutes. B. 20minutes. C. 30 minutes. 听第 7 段材料,完成 89 小题。
8.What is the boy going to do after school? A. Play tennis.B. Play football.C. Play volleyball. 9. What sport doesthe girl like? A. Running. B. Skiing.C. Swimming. 听第 8 段材料,完成 1012 小题。
10. People want to go toHarbin at this time of year because ________. A. they want to goshopping B. there are many interesting places in Harbin C.they want to enjoy the snow and the ice 11. A trip to Harbin costs ________.A. 2,580 yuanB. 3,580 yuanC. 4,580 yuan 12. They willprobably go to ________ at last. A. Hong Kong B. Harbin C.Hainan 听第 9 段材料,完成 1315 小题。
四川省广安市邻水县2018届九年级英语下学期模拟考试试题三卷Ⅰ(共三部分;满分70分)注意事项:1.全卷共12页。
满分120分,由卷Ⅰ(70分)和卷Ⅱ(50分)组成,答题时间为120分钟。
2.请考生将自己的姓名、考号填涂到答题卡上。
3.请考生将卷Ⅰ的答案涂到答题卡上相应位置,卷Ⅱ的答案写在答题卡上相应位置。
第一部分听力部分(共两节;满分20分)第一节(共10小题;每小题1分,满分10分)听下面10段对话。
每段对话后有一个小题,从题后所给的A、B、C三个选项中选出最佳答案,并将答案转涂到机读卡上相应的位置。
听完每段对话后,你有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话读两遍。
1. What is Tom doing now?A. B. C.2. What is the girl good at?A. B. C.3. Where is the girl’s mother?A. B. C.4. How does the man want to go there?A. B. C.5. Who does the girl want to see first?A. B. C.6. What does the boy want?A. Some sandwiches.B. Some dumplings.C. Some hamburgers.7. What did John get on his birthday?A. A toy sheep.B. A toy rabbit.C. A toy dog.8. What’s under the tree?A. Lucy’s dog.B. Lucy’s new bike.C. Lucy’s cat.9. What will the weather be like tomorrow?A. Snowy.B. Sunny.C. Rainy.10. What was Helen doing when the accident happened?A. She was playing chess with her friend.B. She was playing badminton.C. She was playing ping-pong.第二节(共l0小题;每小题l分,满分l0分)听下面三段对话和一个独白,每段对话或独白后有几个小题,从题后所给的A、B、C三个选项中选出最佳答案,并将答案转涂到机读卡上相应的位置。
2018届中考英语第三次模拟考试题(含答案)2018年九年级第三次模拟考试英语试卷 2018.05.22 (满分:120分考试时间:100分钟)注意事项考生在答题前请认真阅读本注意事项及各题答题要求: 1.本试卷共8页,包含选择题(第1题~第45题,共60分)、非选择题(第46题~第81题,共60分)两部分。
本次考试时间为100分钟,满分120分。
考试结束后,请将答题纸交回。
2.答题前,请考生务必将自己的学校、班级、姓名、准考证号用0.5毫米的黑色签字笔写在答题纸上相应的位置。
请在答题纸指定区域作答,在试卷或草稿纸上作答一律无效。
一、单项选择(共15小题;每小题l分,计15分)在下列各题A、B、C、D四个选项中选择一个能填入题干空白处的最佳答案。
1. Although it seemed to be ________ painful experience, he still found it ________ fun. A.a; / B./; a C.a; the D.a; a 2. ---I can't find the magazine I bought this morning. ---Well, Jack is reading over there. Why not go and see if it is yours?A. itB. thatC. oneD. some 3. A hard-working man ________ become a great scientist, but a great scientist ________ be a hard-working man. A.can't; can B.may not; must C.can't; must D.may not; can 4. my sister I do well in our lessons. My mother is very proud of us. A. Not; but B. Neither; nor C. Either; or D. Both; and 5. Pick up your pen and draw your own invention. Maybe it will be a real product one day! A. turned on B. turned down C. turned into D. turned off 6. ---Where is your uncle?I haven't seen him for a long time. ---He Beijing for about halfa year. He moved there Last November. A. has gone to B. has been to C. has arrived in D. has been in 7. ---Did you see a man in black pass by just now? ---No, sir. I a newspaper. A. read B. was reading C. would read D. am reading 8. --- I wonder ________ you'll water this kind of flower. --- Every other day. A. how often B. how long C. how soon D. how much 9. ---Dad, would you please walk a little more ? ---Sorry. I thought you could followme. A. closely B. quickly C. quietly D. slowly 10.With the wide use of e-business, the way of shopping we were used to a lot.A. changeB. changingC. changedD. has changed 11. "I want to know ." said the boy opening the box. A. what's inside the box B. where the box is C. that there's some candy D. how big is the box 12. ---I didn’t have the to go out alone at night when I was a little child. ---Neither did I. But now I’m brave enough.A. courageB. powerC. abilityD. chance 13. ---Do you like to play basketball? --- No, but I ____________ play basketball at college. A. get used to B. was used to C. used to D. use to 14. ---It’s raining hard. Would you please lend me your umbrella? --- . I’ve lent it to Peter. A. I don’t think so B. I can’t agree more C. I’m afraid I can’t D. I haven’t decided yet 15. --- All the people of Yangzhou need to work together to make our city more beautiful. --- That’s it. ___________. A. Practice makes perfect B. Many hands make light work C. When in Rome, do as the Romans do D. A friend in need is a friend indeed 二、完形填空(共15小题;每小题l分,计15分)阅读下列短文,从文后各题所给的四个选项中选出一个最佳答案。
绝密★启用前2018年中考英语模拟试卷一.语音:找出划线部分与所给单词划线部分读音相同的选项(共5分)( ) A many B wash C wake D hat( ) eful A but B umbrella C cut D UFO( ) 3.bread A hear B tea C real D head( ) 4.exam A excuse B explain C example D expressA coldB postC hopeD lot二.词汇(每题1分,共15分)A)用括号中所给单词的适当形式填空。
1. I learn English by _______ (ask) the teacher for help.2. Studying grammar is the best way _________ (learn) English.3. He thinks this is his __________ (success) life style.4. You should make the _________ (decide) for yourself.5. You’d better refuse _________ (go).B)根据首字母及汉语提示写出所缺单词。
6.She enjoys speaking in class because her______________(语音) is good .7. My aunt is going to get her ears _P_________.8. Without my P___________, don’t touch my things.9.He is ___________(自信的)to pass the exam.10. Don’t always depend on others. You can do it by________ (你自己).C) 选出与句子画线部分意思相同或相近的选项。
学校 班级 姓名 考号 _________________--------------------------------------------- 装 --------------------------------------- 定 ---------------------------------- 线 ------------------------------------------------------2018九年级英语中考模拟试题一. 单词辨音( 找出画线部分读音不同的单词,每题1分,共5分) ( ) 1. A. tea B. meat C. weather D. beach ( ) 2. A. back B. fast C. have D. map( ) 3. A. warm B. garden C. market D. party ( ) 4. A 、early B 、sky C 、city D 、very ( ) 5. A. push B. fun C. sun D. ugly 二. 语法与情景会话(每题 1 分, 共 25 分)( ) 6. He has tried twice, and he is asked to have ______ third try. A.the B.a C.an D./ ( ) 7.Jack gets on well with other students, so we make ______ our monitor.A.heB.hisC.himD.it ( ) 8.Do you know the name of the boy ______ father is a doctor?A.whoB.whichC.thatD.whose ( ) 9.Don ’t be afraid of asking for help _______ it is needed.A.whenB.afterC.althoughD.unless ( ) 10.His schoolbag is _______ than mine.A.bestB.betterC.goodD.the best ( ) 11.—I will visit the lake of Hangzhou. See you next week.—______.A.Have a nice tripB. Thank youC.That ’s rightD.That ’s a good idea ( ) 12. _________ of us has read the story ,so we know nothing about it .A .SomeB .BothC .NoneD .All( )13. My student Tom is always breaks school rules and I think it ______ to talk with his mother. A. polite B. important C. necessary D. interesting ( ) 14. Which of the following is the correct pronunciation for the word"interesting"?A ./in'tristi ŋ/B ./in'tristin/C ./'intr əstin/D ./'intr əstiŋ/( ) 15. The workers are very tired. They work for over 10 hours a day, but they ______a little. A. pay B. were paid C. are paid D. paid ( ) 16.What is the sentence pattern(句型) of the sentence “He made the boy laugh.”A. S+VB. S+V+OC. S+V+IO+DOD. S+V+O+OC( )17.—There is an MP5 on the desk. Whose is this? —It can be my ______. She bought one yesterday. A.sister B.sister ’s C.sisters ’ D.sisters ( ) 18.—Would you like to go swimming with me?—I ’d like to. But I ’m busy ______ my homework.A.doB.to doC.doneD.doing( ) 19.The number of TFboy ’s fans _______ about 11 million and a number of them are teenagers. A.is B.are C.was D.were ( ) 20.—My mother is ill in hospital, so I have to look after her. —_______.A.It doesn ’t matterB.I ’m sorry to hear thatC.That ’s OKD.No problem ( ) 21. —Must I learn all these words by heart?—No, you ______. It’ll be fine if you copy them in your exercise books. A. needn’t B. can’t C. shouldn’t D. mustn’t ( ) 22. —How often do you have a meeting one month? —_______. A. For one week B. One week ago C. In one week D. Once a week ( ) 23.—Do you know ______?—Two months ago.A.when did he take this photoB.when he took this photoC.where did he take this photoD.where he took this photo( ) 24. How noisy it is! Could you please ____the CD player a little?A. turn offB. turn downC. turn onD. turn up( ) 25.This bus doesn’t go to the train station. I’m afraid you’ll have to ______ at the library and take the A52.A.take offB.put offC.get offD.turn off( ) 26. China is one of ____________ countries in the world.A. oldB. the olderC. oldestD. the oldest( ) 27 --________beautiful day it is! Let's go and have a picnic in the park. --Good idea!A. HowB. How aC. WhatD. What a( ) 28. The old man is so lonely that he hopes to know about ______ every day.A. special something B special anything C something special D. anything special( ) 29. two soccer games in ours school next week.A. There haveB. There will haveC. There are going to beD. There is going to be( )30. ________ mothers couldn’t go to the meeting, because they have go ne to Shanghai .A. Mary and Peter’sB. Mary and PeterC. Mary’s and PeterD. Mary’s and Peter’s三.完形填空(每题 l 分,共 l0 分)Many students have hobbies, such as reading, planting, growing vegetables in their gardens, and looking after animals. Some hobbies are relaxing and 31 are creative. Hobbies can develop your interests and help you learn new skills.David Smith is a student, and his hobby is writing. __32 the summer of 2000, he spent four weeks on asummer camp. As well as the usual activities, such as sailing, climbing and mountain biking, there was a writing workshop with a professional__33 . She asked us to imagine that we were in a story. Then we wrote about our__34 at the camp.”In senior high school David wrote a story about teenage life, and it 35 as a book in 2003. Many teenagers love his book, and as a result, David has become a 36 young writer.David has been very lucky __37 his hobby has brought him enjoyment and success, but he is__38interested in many other things. “I like playing volleyball, too, ” says David. “I spend some of my free time playing volleyball for my school team.__39 I’ll write more books in the future,but I’m not sure.It’s sometimes difficult__40 that we shouldn't spend all our time on our favorite hobby.There are many other interesting things to do in life, and we should try to do something new or different.( ) 31.A.other B.others C.the other D.another( ) 32.A.During B.At C.For D.On( ) 33.A.manager B.doctor C.singer D.writer( ) 34.A.experiences B.examples C.excuses D.experiments( ) 35.A.took out B.tried out C.came out D.went out( ) 36.A.successful B.normal C.polite D.lonely( ) 37.A.or B.but C.because D.though( ) 38.A.too B.also C.only D.either( ) ually B.Immediately C.Maybe D.Once( ) 40.A.remember B.remembers C.remembered D.to remember四.阅读理解(每题 2 分, 共 30 分)AWe are collecting more news for our school English newspaper. Would you like to be reporters for it? Welcome! Here are two pieces from the news page.根据短文内容,判断下列各句正误。
2018年连云港市中考英语全真模拟考试(三)一、单项选择(共15小题;每小题1分,满分15分)1. —What _______excellent weather it is!—Pretty good. What about playing _________football in the park this afternoon?A. a ; theB. an ; \C. \; theD. \ ; \2. —Nancy, Have you ever been to Gao Gong Island? It is famous for its natural beauty.—I’ve been there twice. And I hear a glass bridge will be built _____ a ri ver near the sea.A. overB. toC. onD. with3. —______ we are tired out, we still keep working hard towards our dreams.—Wish you to realize your dream soon.A. IfB. UnlessC. ThoughD. Because4. —_________mobile phone is out of fashion. What about your sister’s?—____________has an i-phone X—the most popular now.A. Your; HerB. Your; SheC. Yours; SheD. Yours; Hers5. —Is there ________ in The Syrian Arab Republic(叙利亚)?—Yes, I’m sorry to hear that lots of local people died because of the air attack.A. something newB. nothing newC. new anythingD. anything new6. — How do you like the science fiction adventure film Ready Player One(头号玩家)?— Wonderful! I have never seen a ______one before.A. goodB. betterC. wellD. best7. -—Must I finish writing the report today?—No. You _______ if you have something else to do.A. can'tB. couldn'tC. mustn'tD. don't have to8. —It’s raining outside. Where’s my umbrella? —Oh, Tom ____________.A. takes it awayB. took it awayC. has taken it awayD. has taken away it9. —Many people can not afford one house in life because it too much.— Sure! People are now complaining that the price is too___________.A. spends; expensiveB. costs;expensiveC. pays; highD. costs; high10. — Do yo u mind me ____________ on the seats?— Certainly not. You can choose ____________ of the two seats.A. sit; everyB. sitting; eitherC. sitting; neitherD. sit; both11.—In the song I Bet My Life, the US rock band Imagine Dragons tells people never to______catching their dreams.—Yes. It is a wonderful song and popular with both the young and the old.A. give upB. give outC. give inD. give off12. —It is reported that some natural resources will ______ because they are used carelessly.—What a pity! Let’s act to protect them right away.A. break outB. run outC. put outD. hand out13. — Do you live a green life?—Yes. I’d rather________ to work in the past, but now I’m used to _______ a public bike.A.to drive; ridingB. driving; rideC. drive; ridingD. driving;riding14. —Thank you for offering me so many valuable suggestions!—_______, my dear friend.A. Don’t mention itB. All rightC. Best wishesD. With pleasure15. — Food waste is a serious problem in many countries around the world.—Exactly! The Economist Intelligence Unit (EIU, 经济学人智库) recently made a surveytosee ________in different countries.A.how much food is wastedB. how much food do people wasteC. th at the United States wastes the most foodD. whether ca n people do something to save food二、完形填空(共15小题;每小题1分,满分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。
2018中考英语模拟试题和答案解析(总16页)--本页仅作为文档封面,使用时请直接删除即可----内页可以根据需求调整合适字体及大小--2018年中考英语模拟试题及答案一、选择填空。
(共15小题,计15分)从A、B、C、D四个选项中,选出可以填入空白处的最佳答案。
1. —Have you seen wolf warriors II (《战狼II》)—Yes. This is _______ educational film and it has become one of _______ most popular films in the world.A. a; /B. a; theC. an; theD. /; the2. —Hi, Cathy! I saw Miss Zhang in the meeting room just now.―No, it ______ be her. She went to Nanjing two days ago.A. mustB. mayC. can’tD. needn’t3. —Did you watch 2018 CCTV Spring Festival Evening Gala in Taian—Certainly. That night the sky over Taian was as _______ as that in the day with the light.A. brightB. brightlyC. brighterD. more brightly4. — What about going to the cinema on foot with me, Wei Ming?— I prefer _______ a bike to _______ there.A. ride; walkB. riding; walkC. ride; walkingD. ridin g; walking5. China’s first home-built aircraft carrier(航空母舰) hit the water in Dalian ______ _the morning of April 26, 2017.A. inB. onC. atD. to6. When we see any waste lying on the ground, we should _______.A. pick it outB. point at itC. pick it upD. kick it out7. —It’s said that the TV program Readers was quite popular.—Yes. _______ my parents _______ my little sister likes watching it very much.A. Neither; norB. Both; andC. Either; orD. Not only; bu t also8. —Do you know China’s famous scientist Pan Jianwei?—You mean “the father of quantum”(量子之父)Yes, he is the _______ of our country.A. prideB. prizeC. proudD. heart9. —We’ll study in different schools next term. I hope you’ll enjoy your time in the newschool!—_______A. I’ll take your advice.B. The same toyou.C. Congratulations!D. Me, too.10. — Will Sally come here tomorrow?—I don’t know if she_______ here tomorrow. If she _______ here, I will tell you.A. comes; comesB. will come; com esC. comes; will comeD. will come; will come11. —The 24th Winter Olympics will be held in China in 2022.—_______ exciting news it is!A. HowB. What anC. WhatD. How an12. Every day, _______ people wait to watch the raising of the national flag at Tian’anmen Square.A. thousandsB. two thousandsC. thousand ofD. thousands of13. —Wechat is an invention _______ can help people talk to friends, share photos, ideas and feelings freely.—I think it’s very useful in our life.A. whichB. whomC. whereD. whose14. — Would you mind my using your camera?—Sorry, there’s _______ with it.A. wrong somethingB. wrong anythin gC. anything wrongD. something wr ong15. —Many people talk about “Didi”. I really wonder _______.—Just call to order a taxi through it on your mobile phone.A. how I can use itB. who uses it mo stC. why people use itD. what it is used for二、完形填空。
【精品】2018届九年级(下)中考模拟 数学试题
(全卷共五个大题,满分150分,开始时间:120分钟)
参考公式:y=ax 2+bx+c(a ≠0)的顶点坐标为24,24b ac b a a ⎛⎫-- ⎪⎝⎭,对称轴公式为
2b x a =- 一、选择题(本大题共12个小题,每小题4分,共48分)在每个小题下面,都给出了代号为A 、B 、C 、D 的四个答案,其中只有一个是正确的,请将答题卡上对应题目的正确答案标号涂黑。
1.7的倒数是()
A.-7
B.7
C.17
D.17-
2.计算(xy 2)3的结果是()
A.x 3y 5
B.xy 6
C.x 4y 5
D.x 3y 6
3.如果∆ABC ∽∆DEF ,且相似比为2:3,则它们对应边上的高之比为()
A.2:3
B.4:9
C.3:5
D.9:4
4.下列调查中,最适合抽样调查(抽查)方式的是()
A.对我校某班全体同学填报中考志愿情况的调查
B.对乘坐高铁的旅客的行李进行检查
C.对全市中学生的课外阅读情况的调查
D.对纯电动汽车“FF91”的零部件进行检查
5.函数25y x =-
A.x ≥-2
B.x ≠5且x ≥-2
C.x ≠5且x >-2
D.x ≠5且x ≠-2
6.下列命题是假命题的是()
A.对变形的外角和都是360°
B.直角三角形的两锐角互余
C.三角形的内角和一定是180°
D.三角形的一个外角的度数等于该三角形两内角和的度数
7.
A.3.5和4.0
B.4.0和4.5
C.4.5和5.0
D.5.0和5.5
8.下列图形都是由同样大小的●按照一定规律组成的,其中第①个图形中一共有4个●,第②个图形中有10个●,…,按此规律排列下去,第⑦个图形中●的个数为()
A.70
B.72
C.88
D.90
9.位于南开(融侨)中学旁边的“转转桥”是重庆市网红景点之一,在桥下人形天桥(如图1),其平面图如图2所示,天桥入口D点有一台阶DC,其坡度为i=1:0.75,在DC 上方有一平层BC=1米,且BC与地面MN平行,在天桥顶端A点测得B点的俯角为63°,且AD⊥MN,为指导台阶AB的长度,请根据以上信息,帮小亮计算出台阶AB 的长度,约为()精确到0.1米,参考数据:sin63°≈0.90,cos63°≈0.45,tan63°≈2.00 A.1.4米 B.2.5米 C.2.8米 D.2.9米
10.如图,A 、B 、C 都是○O 上的点,OC 与AB 交于点E ,过点B 且与○O 相切的直线
与AC 的延长线交于点D ,若
OC=∠BAC=45°,∠D=75°,则BE 的长为()
A.4
B. C.2
D.11.若数a 既使关于x 的不等式组12326x a x a x a -+⎧+≤⎪⎨⎪-⎩ 无解,又使关于x 的分式方程
122x a a x x +-=+-的解小于4,则满足条件的所有整数a 的个数为()
A.2
B.3
C.4
D.5
12.如图,Rt ∆AOB 中,∠AOB=90°,AO=3BO ,OB 在y 轴上,将Rt ∆AOB 绕点O
顺时针旋转至∆RtA ’OB ’,其中点B ’落在反比例函数2
y x =-的图像上,OA ’交反比例函数k
y x =的图像于点C ,且OC=2CA ’,则k 的值为()
A.4
B.7
2 C.8 D.7
二、填空题(本大题共6个小题,每小题4分,共24分),请将每小题的
答案直接填写在答题卡中对应的横线上。
13.重庆市2018年普通高中计划招生195000人,将数195000用科学计
数法表示为
14.计算:(-2)0-|-4|=
15.初2018级某班文娱委员,对该班“肆月”学习小组同学购买不同单价的毕业照(单位:元)情况进行了统计,绘制了如图所示的条形统计图,则所购毕业照平均每张的单
价是元。
16.如图,在边长为8的菱形ABCD 中,∠BAD=45°,BE⊥AD于点E,以B为圆心,BE为半径画弧,分别交AB、CB于点F、G,则图中阴影部分的面积为(结果保留π)17.甲从A地到B地,1分钟后乙沿同一条路线也从A地道B地,
在A、B之间的C地乙追上甲,甲立即返回A地,乙继续向B地前
行,两人到达各自目的地后停止行走,在整个过程中,甲、乙两人
均保持各自的速度匀速行走,甲、乙两人相距的路程y(米)与甲
出发的时间x(分钟之间的关系如图所示,则乙到达B地时,甲与A
地相距的路程是米。
18.藏族小伙小游到批发市场购买牛肉,已知牦牛肉和黄牛肉的单价
之和为每千克44元,小游准备购买牦牛肉和黄牛肉总共不超过120
千克,其中黄牛肉至少购买30千克,牦牛肉的数量不少于黄牛肉的2倍,粗心的小游在做预算时将牦牛肉和黄牛肉的价格弄对换了,结果实际购买两种牛肉的总价比预算多了224元,若牦牛肉、黄牛肉的单价和数量均为整数,则小游实际购买这两种牛肉最
多需要花费元。
三、解答题:(本大题共2个小题,每小题8分,共16分)解答时每小题必须写出必要的演算过程或推理步骤,请将解答过程书写在答题卡中对应的位置上。
19.如图,AB//CD,点G在CD上,GE交AB于F,BE⊥GE于点E,GH平分∠CGF,若∠B=38°,求∠HGF的度数。
20.2018年5月13日,大国重器——中国第一艘国产航母正式海试,某校团支部为了了解同学们对此事的知晓情况,随机抽取了部分同学进行调查,并根据收集到的信息绘制了如下两幅不完整的统计图,图中A表示“知道得很详细”,B表示“知道个大概”,C表示“听说了”,D表示“完全不知道”,请根据途中提供的信息完成下列问题:(1)扇形统计图中A对应的圆心角是度,并补全折线统计图。
(2)被抽取的同学中有4位同学都是班级的信息员,其中有一位信息员属于D类,校团支部从这4位信息员中随机选出两位作为校广播站某访谈节目的嘉宾,请用列表法或。