重庆八中初2018级初三下期英语定时训练(三)无听力部分无答案

免费领取更多精品资料请关注公众号：教培智库重庆八中2017～2018学年度（下）初三年级第一次全真模拟考试英语试题第I卷（共95分）I．听力测试。

（共30分）第一节（每小题1.5分，共9分）听一遍。

根据你所听到的句子，从A、B、C三个选项中选出最恰当的答语，并把答题卡上对应题目的答案标号涂黑。

1.A.Nice to meet you,too. B.Many thanks. C.The same to you.2.A.Yes,please. B.I like it. C.Tea,please.3.A.Never mind. B.Good luck! C.No problem.4.A.Hold on,please. B.Yes.Who are you? C.Why not?5.A.It doesn’t matter. B.You are welcome. C.I’m sorry.6.A.Yes,I can. B.Good idea. C.No,it isn’t.第二节（每小题1.5分，共9分）听一遍。

根据你所听到的对话和问题，从A、B、C三个选项中选出正确答案，并把答题卡上对应题目的答案标号涂黑。

7.A.Go shopping. B.Go bike-riding. C.Go swimming.8.A.To the supermarket. B.To the restaurant. C.To the bank.9.A.Jane. B.Jane’s father. C.Jane’s friend.10.A.Apples. k. d shake.11.A.A day. B.Six days. C.Seven days.12.A.Sunny. B.Rainy. C.Snowy.第三节（每小题1.5分，共6分）听两遍。

根据你所听到的长对话内容，从A、B、C三个选项中选出正确答案，并把答题卡上对应题目的答案标号涂黑。

重庆市八中2018-2019 学年度（下）初三年级月考I听力测试。

II单项选择。

21.--I hurt my leg by accident. Should I take X-ray? –Of course, you should. The doctor will usually check _X-ray you take first.A.an, \B.a, aC.an, theD.a, the22.--You’re playing the violin so beautifully! –Thank you! I practice it very hard every day so that I can bea one day.A.pianistB.dentistC.scientistD.musician23. —Uncle Lee, did you see my father? –Yes, I happened him at Yonghui supermarket half an hour ago.A.meetB.meetingC.metD.to meet24. My teacher Amy is a beautiful lady and looks much than her age because she does exercise a lot.A.niceB.energeticC.youngerD.older25. —What do you think of the science fiction movie ”The wondering Earth” made in China? –I found a great success for Chinese to make such a wonderful film like that.A.itB.it’sC.thatD.that’s26. visitors come to Chongqing to take cable cars(缆车)during the vacation because Chongqing has become a popular destination on the Internet（网红城市）now.A.ThousandB.ThousandsC.Thousand ofD.Thousands of27. —Haven’t you seen the sign” No Smoking In The Ronn” here? –Sorry, when I came in. I’ll put out the cigarette right away.A.I didn’t see it.B.I haven’t seen it.C.I will see it.D.I was seeing it.28. Remember not to go across the street the traffic light turns green.A.becauseB.afterC.whenD.until29.One of my family rules is that I can’t watch TV unless my homework.A.was finishedB.is finishedC.will be finishedD.finishes30. —I’m so excited about Huawei’s new fold able（可折叠的）smartphone. Do you know?–Very soon. We’ll see.A.how can I get oneB.how I can get oneC.when will it come outD.when it will come outIII.完型填空。

重庆⼋中初2018级初三（上）第⼀次⽉考英语（⽆听⼒⽆答案）重庆⼋中初2018级初三（上）第⼀次⽉考英语试题第I 卷I 听⼒测试。

II 单项选择。

（每⼩题1分，共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，并把答题卡上对应题⽬的答案涂⿊。

21.---There’s _______ useful word in this sentence. Do you know its meaning?---Sorry, I don’t. But I can _______ in the dictionary soon.A.a, look up itB. an, look up itC. an, look it upD. a, look it up22.---Excuse me, is there a _______ near here? I want to buy some books.---Sure, go along Center Street and turn left, then you can find it.A.libraryB. restroomC. restaurantD. bookstore23.If you want to learn a language _______, you should pay more attention to _______ it.A.good, useB. well, usingC. good, usingD. well, use24.It’s no nice _______ you to help me with my _______ Englis h.A.of, spokenB. for, speakingC. of, speakingD. for, spoken25.You’ll remember _______ you have learned _______ it’s a little difficult for you.A.what, becauseB. that, thoughC. what, althoughD. that, if26.---_______ nice weather it is today! Why not _______ out for a walk?---That sounds good.A.What a, goB. What, goC. How a, to goD. How, going27.---One of the drivers _______ in this car accident already.---Sorry to hear that.A.has diedB. have deadC. has been diedD. have been dead28.Because he ate _______ junk food, he _______ three pounds last month.A.too much, put onB. much too, put upC. too many, put offD. many too, put down29.---Look! There’s an old man _______ on the ground.---Let’s go and see what _______./doc/152f0bb577eeaeaad1f34693daef5ef7bb0d1268.html y, happenedB. lying, happenedC. lied, has happenedD. lying, was happened30.---He warned us _______ in the deep river.---Yes. I hear that whoever swims in it will end up _______ his life.A.don’t swim, losingB. not swim, lostC. not to swim, losingD. not to swim, to lose31.---Have you read the novel _______ A Christmas Carol?---Yes, I _______ it a month ago./doc/152f0bb577eeaeaad1f34693daef5ef7bb0d1268.html d, have readB. called, readC. is named, have readD. is calling, read32.---I wonder _______ the man is a businessman?---That’s for sure. He often goes _______ business across the country.A.that, forB. if, onC. whether, toD. that, in33.Asking for help _______ this way sounds more _______.A.by, politelyB. at, politeC. on, politelyD. in, polite34.---Excuse me, could you please tell me _______?---Sure, go along Center Street and turn left, the bank is across from the supermarket.A.how can I get to the bankB. how to get the bankC. which is way to the bankD. where is the bank35.---How about dressing up as ghosts on Halloween?---_______. What should we do to prepare for it?A.Have a good timeB. I don’t think soC. That sounds like funD. That’s too scaryIII 完型填空。

重庆八中初2024届2023—2024学年度（上）Unit8-9 练习英语试题I. 第一节听一遍。

根据你所听到的句子，从A、B、C三个选项中选出最恰当的答语，并把答题卡上对应题目的答案标号涂黑。

1. A. It is Lily’s. B. His name’s Tom. C. It’s expensive.2. A. I like cartoons. B. He likes documentaries. C. They like dramas.3. A. By planting more trees. B. By taking classes. C. By writing stories.4. A. Thanks. B. Sorry to hear that. C. You are welcome.5. A. At 8:00. B. In the laboratory. C. By bus.6. A. Never mind. B. OK, I will. C. Sorry, I won’t.第二节听一遍。

根据你所听到的对话和问题，从A、B、C三个选项中选出正确答案，并把答题卡上对应题目的答案标号涂黑。

7. A. America. B. China. C. Australia.8. A. Thin. B. Short. C. Tall.9. A. Swimming. B. Skiing. C. Skating.10. A. Paul’s. B. Jenny’s. C. Allen’s.11. A. Her parents. B. Herself. C. Her friend.12. A. Tina bowed to her. B. Tina shook hands with her. C. Tina kissed her.第三节听两遍。

根据你所听到的长对话，从A、B、C三个选项中选出正确答案，并把答题卡上对应题目的答案标号涂黑。

2023年重庆市第八中学校中考三模英语试题学校:___________姓名：___________班级：___________考号：___________lives alone18．A．keep B．help C．give D．make 19．A．many B．much C．little D．few 20．A．on B．with C．in D．under三、阅读单选ChessFencingFirst LegoLeagueArcheryChinese competitors had an excellent performance at the World Skills Competition 2022 Special Edition. They have already won eight golds.Li Dexin won the nation’s first gold medal in cabinet makingtime that a Chinese competitor has won the first prize in this event since the nation startedlocations（位置）or connecting them to memorable images makes them easier to remember. There are also more things that we can do to improve our memory. Hancock says that being generally organized makes things easier for your brain. Many other experts also suggest that we should get a lot of rest and exercise. So, the good news to take from this is that while it may be hard, improving our memory is something we can do.28．The writer introduces the topic of the passage by __________.A．listing numbers B．describing a scene C．telling a story D．asking questions 29．What should we do to remember better according to paragraphs 2—3?A．Wait some time before reviewing.B．Write down what we can’t remember.C．Learn the important parts several times.D．Go back over what we’ve studied at once.30．What does the underlined word “them” in Paragraph 4 refer to ?A．ideas B．tips C．places D．connections 31．What would Hancock advise ?① Doing nothing after studying.② Having enough rest.③ Connecting new things with memorable images.④ Being generally organized.A．①②B．②③C．③④D．①④The earth’s ozone layer （臭氧层）is gradually recovering（修复）, thanks to tens of years of work, certain harmful chemicals（化学品）are becoming fewer and fewer, according to a new United Nations report.The ozone layer plays an important role in protecting living things on the earth. It is about 15 to 40 kilometers above the earth’s surface, and it prevents humans and the environment from harmful radiation（辐射）.The international groups were shocked after experts discovered a hole in the ozone layer in May 1985. Scientists had found that some chemicals ate away the earth’s ozone layer. Two years later, an international agreement called the Montreal Protocol（《蒙特利尔协议书》）was created to stop the use of those chemicals.At the same time, the Montreal Protocol also has a positive influence on the fight againstclimate（气候）change. The depletion（损耗）of the ozone layer is not the main cause of climate change. But research is showing that these efforts to save the ozone layer can help deal with climate change. “Ozone action sets an example to climate action,” says World Meteorological Organization Secretary-General Petteri Taalas. “Our success shows that we are able to and we have to control temperature increase.”If everything goes well, the ozone player is expected to recover to 1980 levels by 2040, the U.N. says. __________ For example, the earth’s ozone layer above Antarctica（南极洲）is the thinnest. It will take time to fix the hole, maybe until 2066.32．You may read the passage in a __________.A．science magazine B．social report C．school noticeD．story book33．According to the passage, we can know _________.A．the earth’s ozone layer cannot prevents harmful radiationB．the Montreal Protocol was created to discover a hole in the ozone layerC．Ozone action shows we can and must control temperature increaseD．the Montreal Protocol has a bad influence on the fight against climate change 34．Which of the following sentence can be put in the _________?A．Many places may need less time.B．In some places, it may take much longer.C．It will require much more actions in other places.D．We may need much more space for it.35．The writer’s main purpose in writing the passage is to _________.A．tell us an international agreement called the Montreal ProtocolB．share us something about the earth’s climate changeC．introduce the basic information about the earth’s ozone layer to childrenD．show us the fact that the earth’s ozone layer is gradually recovering①China has completed its BeiDou Navigation Satellite System, or BDS, becoming another one in the world with a global navigation network （全球导航网络）, and the other three are GPS of the US, GLONASS of Russia and Galileo of the European Union.② As the name suggests, the global navigation satellite system provides navigation and location services 24 hours a day. From what we have kmown so far, building a good satellitesystem costs a lot. Besides, the other systerns have been set up. Why does China have a new one if there is nothing special?③ The other three systems have 24 satellites in MEO（中轨道）. In addition to the 24 satellites, China’s new global navigation satellite system BeiDou-3 also has three satellites in GEO（地球静止同步轨道）and three in IGSO（倾斜地球同步轨道）. These six satellites are special because they have a fixed area of activity. This can improve BDS’accuracy （精准度）in China and the Asia-Pacific area to 5 meters, compared with a 10-meter accuracy in other areas.④BDS has another advantage-the short message service. It allows users to have a two-way communication. In areas not covered by communication signals, BDS can make the short message service work in areas without humans, such as deserts, forests, mountainous and polar areas. With this service, users who are in danger can tell the rescue team （救援队）theirlocation and condition.⑤ As a county with the largest population in the world,its important for China to have its own global navigation satellite system to meet the needs of the country’s development.⑥ In fact, BDS is also good business. According to the official report, China’s satellite industry has kept a 20% annual growth since 2012. And BDS contributes（贡献）about 80% of it. In addition, BDS has also created countless high-paying jobs. And with continuous improvement, it will have much more to offer in the future.36．We can know that BDS is the ________ global navigation network in the world.A．third B．fourth C．fifth D．sixth 37．According to the passage, we can infer （推断）that __________.A．GPS of the US and GLONASS of Russia have 25 satellites in MEOB．BDS can make the short message service work in areas like deserts or forestsC．BDS might improve itself and have better influences in the futureD．European Union doesn’t need its own navigation satellite system38．What is the structure of the passage?A．B．C．D．39．What is the best title of the article?A．The good points of GPS B．A global navigation network C．The popularity of BDS D．The special BDS四、补全对话7选5六、改写句子八、同义句转化十、短文语境提示填空十一、材料作文62．时光荏苒，六月的脚步越来越近，同学们即将离开这个与你朝夕相处三年的校园。

重庆八中2009届高三下学期第三次月考（英语）第I卷（三部分，共115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. How much does the woman's ticket cost?A. $1.0.B. S1.5.C. $2.5.2. What does the man want Mark to be?A. A musician.B. A policeman.C. A businessman.3. What is the probable relationship between the speakers?A. Mother and son.B. Doctor and patient.C. Teacher and student4. Where does this conversation most probably take place?A. In a furniture store.B. In a sports store.C. In a shoe store.5. Why does the woman walk all the way to her office?A. It is not very far to her office.B. She loves doing something new.C. She takes it as a kind of exercise.第二节（共12小题；每题1.5分，满分18分）听下面4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。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，每小题将给出5秒钟的作答时间。

考试范围：xxx；满分：***分；考试时间：100分钟；命题人：xxx 学校：__________ 姓名：__________ 班级：__________ 考号：__________一、选择题1．I’m not sure whether I can hold a party in the open air, because it ______ the weather. A．stands for B．depends on C．lives on D．agrees with 2．---Could you tell me where the bookstore is? ---_____? I didn’t hear clearly. A．Pardon B．How are you C．How do you do D．Yes, please 3．---I don’t know _____ next. ---You’d better finish your homework first.A．what to do B．how to do C．when to do D．where to do 4．---Do you know _____ ? --- By train.A．how did Mr. Wang go to France B．when did Mr. Wang go to France C．how Mr. Wang went to France D．when Mr. Wang went to France 5．─Must I be home before eight o'clock, Mum?─No, you_________. But you have to come back before ten o'clock.A．needn't B．can't C．mustn't D．may 6．Her mother hardly_________ to work_________ the bus every morning.A．go；by B．goes；by C．go；on D．goes；on 7．─Would you mind_________ in the dining hall？─Of course not.A．not to smoke B．not smoking C．to smoking D．smoke 8．— Could you please open the door for me, Jim?—_________? I didn’t hear clearly.A．Sure B．What C．Pardon D．Really 9．—Excuse me, could you please tell me _________?—It's not far from here. I can walk with you.A．how can I get to Xinhua BookstoreB．how I can get to Xinhua BookstoreC．how could I get to Xinhua Bookstore10．— Is AC Milan ________ Italian football club?—Yes. It’s one of ________ most successful clubs in Italy.A．an; / B．an; the C．/; the D．/; / 11．—Could you please tell me _______?—No problem. Just go straight. It’s at the corner.A．how can I get to the park B．where the new park is C．when the park opens 12．—Could you please open the window, Mike?—______? I didn’t catch what you said.A．What B．PardonC．Really D．All right13．—Do you like Sichuan food?—Yes. My brother and I like hot food very much.A．all B．both C．either D．neither14．My father used to ________ newspapers and watch TV after dinner. But now he is used to ________ a walk.A．read; take B．read; taking C．reading; take D．reading; taking 15．I met Lily a bookstore yesterday.A．on B．to C．in D．of16．— Did you study any other language ________ English when you were at college?— Yes, I studied three. I have forgotten all ________ a few words of each.A．besides；except B．except；besides C．besides；besides 17．—How much are these postcards?—________.A．There are two B．Not much C．Two pounds D．Very much 18．These postcards are ________.A．they B．theirs C．their D．them19．The robot has a speaker _______ a mouth.A．for B．as C．on D．being20．It’s _________ of you to wait _________ for your turn every time.A．polite; polite B．politely; politely C．polite; politely D．politely; polite 21．The clerk warned us ____ quiet in the library.A．to keep B．not to keep C．keeping22．Don't ask Miss Smith's age. It is ________.A．impossible B．fascinating C．friendly D．impolite 23．Can you send the file to me _______?A．by the email B．on emailC．in email D．by email24．They didn’t go home _________ they finished their work.A．because B．when C．until25．—Excuse me, could you please tell me the way to the ? I have had too much water.—Go along the street and you will find one.A．bedroom B．living room C．classroom D．restroom 26．—A research suggests that walking helps people live longer.—I quite agree, but it on when and how they walk.A．remains B．separates C．returns D．depends【参考答案】一、选择题1．B2．A 3．A 4．C5．A 6．D 7．B 8．C9．B 10．B 11．B 12．B 13．B 14．B 15．C 16．A 17．C 18．B 19．B 20．C 21．A 22．D 23．D 24．C25．D26．D【参考解析】一、选择题1．B解析：B【详解】句意：是否举行宴会我不确定，因为得取决于天气状况。

八中初三英语试题及答案一、听力部分（共20分）1. 根据所听对话，选择正确答案。

（每题1分，共5分）A) 听第一段对话，回答以下问题：(1) What is the man doing?A. Cooking dinner.B. Watching TV.C. Reading a book.(2) Why does the woman want to go to the park?A. To play tennis.B. To play basketball.C. To play soccer.B) 听第二段对话，回答以下问题：(3) What does the woman suggest the man do?A. Take a rest.B. Go to the doctor.C. Drink some water.答案：1-5 C A B B C2. 根据所听短文，完成下列信息。

（每题2分，共15分）A) 听第一段短文，记录以下信息：(6) The boy is _______ years old.(7) The boy is _______ to the library.(8) The boy wants to _______.B) 听第二段短文，记录以下信息：(9) The girl is going to _______.(10) The girl's favorite subject is _______.(11) The girl's mother is a _______.答案：6. 15 7. excited 8. borrow books9. the beach 10. English 11. teacher二、语法填空（共20分）3. 根据所给单词的适当形式填空。

（每题1分，共10分）(12) I _______ (be) to the Great Wall three times.(13) She _______ (not go) to the cinema last night.(14) The children _______ (play) football on the playground now.答案：12. have been 13. didn't go 14. are playing4. 根据句意，用括号中所给词的适当形式填空。

2018-2019学年九年级（下）第三次定时练习数学试卷一．选择题（共12小题）1．﹣1，0，1，2四个数中，绝对值最小的数是（）A．﹣1 B．0 C．1 D．22．如图图形中是轴对称图形的是（）A．B．C．D．3．计算（x3）3的结果是（）A．x27B．x6C．x9D．3x34．要使有意义，则x的取值范围为（）A．x B．x C．x D．x5．下列调查中，最适宜采用全面调查方式（普查）的是（）A．对重庆市中学生每周锻炼所用时间的调查B．对重庆市某校九年级（1）班学生进行“是否有生日在同一天问题的调查C．对重庆市中学生心理健康现状的调查D．对重庆市中学生周末上网时间的调查6．×+的值介于（）A．6至7之间B．7至8之间C．8至9之间D．9至10之间7．若x+y＝3，xy＝1，则﹣5x﹣5y+3xy的值为（）A．﹣12 B．﹣14 C．12 D．188．如图，△ABC中，DE∥BC，且AE：EC＝1：3，若S△ABC＝16，则△ADE的面积是（）A．1 B．3 C．4 D．99．如图，以点O为圆心、2cm为半径作半圆，以圆心O为直角顶点作等腰Rt△AOB，斜边AB刚好与半圆相切于点C，两直角边都与半圆所在弧相交，则图中阴影部分的面积为（）A．4cm2B．2cm2C．πcm2D．2πcm210．如图，观察这组图形中五角星的个数，其中第①个图形中共有4个五角星，第②个图形中共有10个五角星，第③个图形中共有18个五角星…，按此规律，则第⑥个图形中五角星的个数为（）A．64 B．34 C．40 D．5411．如图，某社区一建筑物上，悬挂“创文明小区，建和谐社会”的宣传条幅AB，小明站在位于建筑物正前方的台阶一上D点处测得条幅顶端A的仰角为36.9°，朝着条幅的方向走到台阶下的E点处，测得条幅顶端A的仰角为63.5°，已知台阶DE的坡度为1：2，DC＝2米，则条幅AB的长度约为（）（参考数据：sin36.9°≈0.60，tan36.9°≈0.75，sin63.5°≈0.89，tan63.5°≈2.00）A．7米B．8米C．9米D．10米12．如果关于x的方程+＝1有正分数解，且关于x的不等式组的解集为x＜﹣6，则符合条件的所有整数a的和为（）A．0 B．2 C．3 D．4二．填空题（共5小题）13．2016年我国高新技术产品出口总额达40500亿元，将数40500用科学记数法表示为．14．计算：（）﹣2+（π﹣3）0﹣＝．15．如图，△ABC内接于⊙O，∠OBC＝40°，则∠A的度数为．16．为了方便出行，王叔叔连续统计了重庆市市区五一节前后5天的最高气温，并制作成折线统计图，则这五个数据的中位数与极差之和为．17．星期天早晨，王老师骑自己的摩托车与一辆货车同时从A地出发，以不同的速度匀速向B地行驶，货车的行驶速度较快，当货车到达B地后，停车装上货物后就沿原路以原速返回，在途中与王老师相遇．若两车之间的距离y（千米）与行驶时间x（小时）之间的函数图象如图所示，则A，B两地之间的距离是千米．三．解答题（共7小题）18．如图，已知∠1＝∠4，∠2与∠3互补，求证：AB∥CE．19．某市4所大学（用A、B、C、D表示）各组织部分学生参加“汉语桥”大赛，各学校组织的学生人数绘制成的条形统计图和扇形统计图如图所示．请根据统计图回答下列问题：（1）将条形统计图补充完整；扇形统计图中C代表的扇形的圆心角为度；（2）赛后，大赛组织方从参赛的学生中挑选出2名学生前往西藏的日噶则、那区、山南3个地区（分别用R、N、S表示）宣传汉语，每名学生各自随机选择一个地区进行宣传工作，请用画树状图或列表的方法求出两人恰好都选择了同一地区的概率．20．化简：（1）（a﹣b）2﹣（a+b）（a﹣3b）（2）÷（m﹣2﹣）21．如图，一次函数y＝ax+b（a≠0）的图象与反比例函数y＝（k≠0）的图象交于A，B 两点，与x轴交于点C，与y轴交于点D，已知OA＝，点B的坐标为（m，﹣2），tan ∠AOC＝（1）求反比例函数和一次函数的解析式；（2）若点P在y轴的正半轴上，且使得S△PBC＝6S△AOC，求P点的坐标．22．2017年3月23日，2018年足球世界杯预选赛中国队与韩国队在长沙交锋，由于球迷热情参与，五万多张票一票难求，3月1日大麦网楷书四启动球票申购，许多球票被一些不良商家大量抢购，再高价卖出，某不良商家以480元/张的价格购进若干张球票，将这些球票标价为1500元/张，然后在标价的基础上打折出售，折后再降价180/张．（1）问该商家最多打几折销售，能使利润率不低于50%？（2）为了照顾广大球迷，组委会决定将大量球票通过球迷协会统一购买的方式卖给球迷．某球迷协会组委会售票处得（m+60）张球票，每张球票价格比（1）中商家售出的最低价格少（m+10）%，购票共用去38880元，求m的值（m≠0）．23．在等边△ABC中，BD是AC边上的高，BE平分∠CBD交AC于点E．（1）如图1，过点E作EK⊥AB于点K，若EK＝，求CE的长；（2）如图2，在BC上取一点G，连接EG，且EG＝2DE．点F是△ABC外一点，连接AF，BF，∠FBE＝∠FAB＝60°，连接GF交EB于点H，求证：GF⊥BE．24．当一个多位数的位数为偶数时，在其中间位插入一位数k，（0≤k≤9，且k为整数）得到一个新数，我们把这个新数称为原数的关联数．如：在435729中间插入数字6可得435729的一个关联数4356729；在435729中间插入数字7可得435729的另一个关联数4357729．请阅读以上材料，解决下列问题：（1）若一个两位数M的关联数是原数的9倍，求满足条件的M的关联数；（2）对于一个六位数N＝（1≤x≤5，0≤y≤9，0≤z≤7且x、y、z为整数），在N的中间位插入一位数（z+2），得其关联数，已知N为21的倍数，且N的关联数与N 之差为9的倍数，求证：x+y+1能被3整除．参考答案与试题解析一．选择题（共12小题）1．﹣1，0，1，2四个数中，绝对值最小的数是（）A．﹣1 B．0 C．1 D．2 【分析】求出四个数的绝对值，比较即可．【解答】解：|﹣1|＝1，|0|＝0，|1|＝1，|2|＝2，绝对值最小的数是0．故选：B．2．如图图形中是轴对称图形的是（）A．B．C．D．【分析】根据轴对称图形的概念对各选项分析判断即可得解．【解答】解：A、不是轴对称图形，故本选项不符合题意；B、是轴对称图形，故本选项符合题意；C、不是轴对称图形，故本选项不符合题意；D、不是轴对称图形，故本选项不符合题意．故选：B．3．计算（x3）3的结果是（）A．x27B．x6C．x9D．3x3【分析】根据幂的乘方的运算法则计算可得．【解答】解：（x3）3＝x9，故选：C．4．要使有意义，则x的取值范围为（）A．x B．x C．x D．x【分析】二次根式中被开方数的取值范围：二次根式中的被开方数是非负数，此外还需考虑分母不为零．【解答】解：要使有意义，则2x﹣1＞0，∴x的取值范围为．故选：C．5．下列调查中，最适宜采用全面调查方式（普查）的是（）A．对重庆市中学生每周锻炼所用时间的调查B．对重庆市某校九年级（1）班学生进行“是否有生日在同一天问题的调查C．对重庆市中学生心理健康现状的调查D．对重庆市中学生周末上网时间的调查【分析】根据普查得到的调查结果比较准确，但所费人力、物力和时间较多，而抽样调查得到的调查结果比较近似判断即可．【解答】解：A．对重庆市中学生每周锻炼所用时间的调查适合抽样调查；B．对重庆市某校九年级（1）班学生进行“是否有生日在同一天问题的调查适合全面调查；C．对重庆市中学生心理健康现状的调查适合抽样调查；D．对重庆市中学生周末上网时间的调查适合抽样调查；故选：B．6．×+的值介于（）A．6至7之间B．7至8之间C．8至9之间D．9至10之间【分析】直接利用二次根式的混合运算法则计算进而估算的取值范围，进而得出答案．【解答】解：原式＝6+，∵2＜＜3，∴8＜6+＜9，故选：C．7．若x+y＝3，xy＝1，则﹣5x﹣5y+3xy的值为（）A．﹣12 B．﹣14 C．12 D．18【分析】本题可对﹣5x﹣5y+3xy进行转换，可转换为﹣5（x+y）+3xy，题中已知x+y＝3，xy＝1，代入即可．【解答】解：由分析可得：﹣5x﹣5y+3xy＝﹣5（x+y）+3xy，已知x+y＝3，xy＝1，代入可得﹣5x﹣5y+3xy＝﹣12．故选：A．8．如图，△ABC中，DE∥BC，且AE：EC＝1：3，若S△ABC＝16，则△ADE的面积是（）A．1 B．3 C．4 D．9【分析】证明△ADE∽△ABC，根据相似三角形的面积比等于相似比的平方列式计算，得到答案．【解答】解：∵＝，∴＝，∵DE∥BC，∴△ADE∽△ABC，∴＝（）2，即＝，解得，△ADE的面积＝1，故选：A．9．如图，以点O为圆心、2cm为半径作半圆，以圆心O为直角顶点作等腰Rt△AOB，斜边AB刚好与半圆相切于点C，两直角边都与半圆所在弧相交，则图中阴影部分的面积为（）A．4cm2B．2cm2C．πcm2D．2πcm2【分析】连接OC，根据切线的性质得出OC⊥AB，求出AB长，再求出阴影部分的面积即可．【解答】解：连接OC，∵AB切半圆O于C，∴OC⊥AB，∵△BOA是等腰直角三角形，∴∠AOB＝90°，OA＝OB，∠A＝∠B＝45°，∴AC＝BC，OC＝BC＝AC＝2cm，即AB＝4cm，∠DOF+∠EOG＝180°﹣90°＝90°，∴阴影部分的面积S＝+﹣＝4（cm2），故选：A．10．如图，观察这组图形中五角星的个数，其中第①个图形中共有4个五角星，第②个图形中共有10个五角星，第③个图形中共有18个五角星…，按此规律，则第⑥个图形中五角星的个数为（）A．64 B．34 C．40 D．54【分析】先根据题意求找出其中的规律，即可求出第⑥个图形中五角星的个数．【解答】解：第①个图形一共有0+2×2＝4个五角星，第②个图形一共有：1+（3×3）＝10个五角星，第③个图形一共有2+（4×4）＝18个五角星，…第n个图形一共有n﹣1+（n+1）•（n+1）个五角星，把n＝6代入n﹣1+n•n＝5+7×7＝54，故选：D．11．如图，某社区一建筑物上，悬挂“创文明小区，建和谐社会”的宣传条幅AB，小明站在位于建筑物正前方的台阶一上D点处测得条幅顶端A的仰角为36.9°，朝着条幅的方向走到台阶下的E点处，测得条幅顶端A的仰角为63.5°，已知台阶DE的坡度为1：2，DC＝2米，则条幅AB的长度约为（）（参考数据：sin36.9°≈0.60，tan36.9°≈0.75，sin63.5°≈0.89，tan63.5°≈2.00）A．7米B．8米C．9米D．10米【分析】要求AB的长，只要构造出直角三角形，利用锐角三角函数进行求解即可，作DF⊥AB于点F，然后根据题目中的数量关系，可以表示出关于AB的等式，从而可以得到AB的值．【解答】解：作DF⊥AB于点F，如右图所示，由题意可得，DF＝CB，∵台阶DE的坡度为1：2，DC＝2米，∴CE＝2CD＝4米，∵∠AFD＝90°，∠ADF＝36.9°，DC＝2米，tan∠ADF＝，∴tan36.9°＝，即DF＝，又∵∠ABE＝90°，∠AEB＝63.5°，CE＝4米，CB＝DF，tan∠AEB＝，∴BE＝，即DF﹣4＝，∴，解得，AB≈8米，故选：B．12．如果关于x的方程+＝1有正分数解，且关于x的不等式组的解集为x＜﹣6，则符合条件的所有整数a的和为（）A．0 B．2 C．3 D．4【分析】分式方程去分母转化为整式方程，表示出整数方程的解，由分式方程的解为正分数求出a的范围，再由不等式组的解集确定出a的范围，进而求出a的具体范围，确定出整数a的值，求出之和即可．【解答】解：分式方程去分母得：4x﹣（5+a）＝x﹣2，解得：x＝，由分式方程的解为正分数，得到a+3＞0，即a＞﹣3，∵x≠2，∴≠2，a≠3，不等式整理得：，由不等式的解集为x＜﹣6，得到6﹣3a≥﹣6，即a≤4，∴a的范围是﹣3＜a≤4，且a≠3∵a是整数，∴a的值为﹣2，﹣1，0，1，2，4，把a＝﹣2代入x＝，即x＝，符合题意；把a＝﹣1代入x＝，即x＝，符合题意；把a＝0代入x＝，即x＝1，不符合题意；把a＝1代入x＝，即x＝，符合题意；把a＝2代入x＝，即x＝，符合题意；把a＝4代入x＝，即x＝，符合题意；∴符合条件的整数a取值为﹣2，﹣1，1，2，4，之和为4，故选：D．二．填空题（共5小题）13．2016年我国高新技术产品出口总额达40500亿元，将数40500用科学记数法表示为4.05×104．【分析】科学记数法的表示形式为a×10n的形式，其中1≤|a|＜10，n为整数．确定n 的值时，要看把原数变成a时，小数点移动了多少位，n的绝对值与小数点移动的位数相同．当原数绝对值＞10时，n是正数；当原数的绝对值＜1时，n是负数．【解答】解：40500用科学记数法表示为：4.05×104．故答案为：4.05×104．14．计算：（）﹣2+（π﹣3）0﹣＝ 2 ．【分析】原式利用零指数幂、负整数指数幂法则，以及算术平方根定义计算即可得到结果．【解答】解：原式＝4+1﹣3＝2，故答案为：215．如图，△ABC内接于⊙O，∠OBC＝40°，则∠A的度数为50°．【分析】根据三角形内角和定理求出∠BOC，根据圆周角定理解答即可．【解答】解：∵OB＝OC，∴∠OCB＝∠OBC＝40°，∴∠BOC＝180°﹣40°﹣40°＝100°，由圆周角定理得，∠A＝∠BOC＝50°，故答案为：50°．16．为了方便出行，王叔叔连续统计了重庆市市区五一节前后5天的最高气温，并制作成折线统计图，则这五个数据的中位数与极差之和为27 ．【分析】根据折线统计图，读出其中的数据，根据中位数及极差相关知识即可求得．【解答】解：由图知，重庆市市区五一节前后5天的最高气温分别为：22℃、24℃、23℃、25℃、24℃．将这五个数据由小到大排序为：22、23、24、24、25．则这五个数据的中位数为24．极差为：25﹣22＝3则中位数与极差之和为：24+3＝27故答案为：27．17．星期天早晨，王老师骑自己的摩托车与一辆货车同时从A地出发，以不同的速度匀速向B地行驶，货车的行驶速度较快，当货车到达B地后，停车装上货物后就沿原路以原速返回，在途中与王老师相遇．若两车之间的距离y（千米）与行驶时间x（小时）之间的函数图象如图所示，则A，B两地之间的距离是360 千米．【分析】根据题意和函数图象中的数据可以分别求得王老师骑摩托车的速度和货车的速度，从而可以求得A，B两地之间的距离．【解答】解：设王老师骑摩托车的速度为akm/h，则货车的速度为：a+＝（a+30）km/h，120﹣（4.5﹣4）a＝[a+（a+30）]×（5.1﹣4.5）解得，a＝60，∴a+30＝90，∴A，B两地之间的距离是：90×4＝360（千米），故答案为：360．三．解答题（共7小题）18．如图，已知∠1＝∠4，∠2与∠3互补，求证：AB∥CE．【分析】想办法证明∠3+∠ACE＝180°即可解决问题．【解答】证明：∵∠1＝∠4，∴AC∥BD，∴∠2＝∠ACE，∵∠3+∠2＝180°，∴∠3+∠ACE＝180°，∴AB∥EC．19．某市4所大学（用A、B、C、D表示）各组织部分学生参加“汉语桥”大赛，各学校组织的学生人数绘制成的条形统计图和扇形统计图如图所示．请根据统计图回答下列问题：（1）将条形统计图补充完整；扇形统计图中C代表的扇形的圆心角为144 度；（2）赛后，大赛组织方从参赛的学生中挑选出2名学生前往西藏的日噶则、那区、山南3个地区（分别用R、N、S表示）宣传汉语，每名学生各自随机选择一个地区进行宣传工作，请用画树状图或列表的方法求出两人恰好都选择了同一地区的概率．【分析】（1）先利用A代表的人数和它所占的百分比计算出样本容量为200，则可计算出C代表的人数为80，然后用360°乘以C代表所占的百分比得到扇形统计图中C代表的扇形的圆心角的度数；最后补全条形统计图；（2）画树状图展示所有9种等可能的结果数，再找出两人恰好都选择了同一地区的结果数，然后根据概率公式求解．【解答】解：（1）20÷10%＝200，所以样本容量为200，所以C代表的人数为200﹣20﹣40﹣60＝80（人），所以扇形统计图中C代表的扇形的圆心角的度数为360°×＝144°；条形统计图补充完整为：故答案为144；（2）画树状图为：共有9种等可能的结果数，其中两人恰好都选择了同一地区的结果数为3，所以两人恰好都选择了同一地区的概率＝＝．20．化简：（1）（a﹣b）2﹣（a+b）（a﹣3b）（2）÷（m﹣2﹣）【分析】（1）先利用完全平方公式和多项式乘多项式法则计算，再去括号、合并同类项即可得；（2）先计算括号内分式的减法，再将除法转化为乘法，继而约分即可得．【解答】解：（1）原式＝a2﹣2ab+b2﹣（a2﹣3ab+ab﹣3b2）＝a2﹣2ab+b2﹣a2+3ab﹣ab+3b2＝4b2；（2）原式＝÷（﹣）＝÷＝•＝＝．21．如图，一次函数y＝ax+b（a≠0）的图象与反比例函数y＝（k≠0）的图象交于A，B 两点，与x轴交于点C，与y轴交于点D，已知OA＝，点B的坐标为（m，﹣2），tan ∠AOC＝（1）求反比例函数和一次函数的解析式；（2）若点P在y轴的正半轴上，且使得S△PBC＝6S△AOC，求P点的坐标．【分析】（1）过A作AE⊥x轴于E，由tan∠AOE＝，得到OE＝3AE，根据勾股定理即可求出AE和OE的长，即得到A的坐标，代入双曲线即可求出k的值，得到解析式；把B的坐标代入反比例函数的解析式即可求出B的坐标，把A和B的坐标代入一次函数的解析式即可求出a、b的值，即得到答案．（2）设P点坐标为P（0，t），再根据面积关系列出方程求解．【解答】解：（1）过A作AE⊥x轴于E，tan∠AOE＝，∴OE＝3AE，∵OA＝，由勾股定理得：OE2+AE2＝10，解得：AE＝1，OE＝3，∴A的坐标为（3，1），∵A点在双曲线上y＝上，∴1＝，∴k＝3，∴双曲线的解析式y＝；∵B（m，﹣2）在双曲y＝上，∴﹣2＝，解得：m＝﹣，∴B的坐标是（﹣，﹣2），代入一次函数的解析式得：，解得：，则一次函数的解析式为：y＝x﹣1；（2）设P点坐标为P（0，t），如图所示，∵一次函数的解析式为：y＝x﹣1；∴D（0，﹣1），C（，0），∴OD＝t+1，OC＝，∵S△PBC＝6S△AOC，∴，即，解得，t＝5，∴P（0，5）．22．2017年3月23日，2018年足球世界杯预选赛中国队与韩国队在长沙交锋，由于球迷热情参与，五万多张票一票难求，3月1日大麦网楷书四启动球票申购，许多球票被一些不良商家大量抢购，再高价卖出，某不良商家以480元/张的价格购进若干张球票，将这些球票标价为1500元/张，然后在标价的基础上打折出售，折后再降价180/张．（1）问该商家最多打几折销售，能使利润率不低于50%？（2）为了照顾广大球迷，组委会决定将大量球票通过球迷协会统一购买的方式卖给球迷．某球迷协会组委会售票处得（m+60）张球票，每张球票价格比（1）中商家售出的最低价格少（m+10）%，购票共用去38880元，求m的值（m≠0）．【分析】（1）设该商家最多打x折销售，根据（售价﹣降价﹣进价）除以进价等于利润率，让其大于等于50%，解不等式即可；（2）先根据（1）求得的打折数，求出实际售价，根据单张售价乘以售出张数，列方程求解即可．【解答】解：（1）设该商家最多打x折销售，根据题意得：≥50%化简得：150x≥900∴x≥6答：该商家最多打6折销售，能使利润率不低于50%．（2）由（1）得1500×﹣180＝900﹣180＝720（元）由题意得：720[1﹣（m+10）%]（m+60）＝38880化简得：（90﹣m）（m+60）＝5400∴m2﹣30m＝0∴m（m﹣30）＝0∵m≠0∴m﹣30＝0∴m＝30答：m的值为30．23．在等边△ABC中，BD是AC边上的高，BE平分∠CBD交AC于点E．（1）如图1，过点E作EK⊥AB于点K，若EK＝，求CE的长；（2）如图2，在BC上取一点G，连接EG，且EG＝2DE．点F是△ABC外一点，连接AF，BF，∠FBE＝∠FAB＝60°，连接GF交EB于点H，求证：GF⊥BE．【分析】（1）证明△BEK是等腰直角三角形，得出BK＝EK＝，由直角三角形的性质得出AK＝EK＝1，AE＝2AK＝2，得出AC＝AB＝AK+BK＝1+，即可得出答案；（2）证明△ABF≌△CBE（ASA），得出BF＝BE，证出△BEF是等边三角形，得出BF＝EF，作EM⊥BC于M，证出BG＝EG，证明△BFG≌△EFG（SSS），得出∠BGF＝∠EGF，由等腰三角形的性质即可得出结论．【解答】（1）解：∵△ABC是等边三角形，BD是AC边上的高，∴AB＝AC，∠A＝∠C＝∠ABC＝60°，BD平分∠ABC，∴∠ABD＝∠CBD＝∠ABC＝30°，∵BE平分∠CBD，∴∠CBE＝∠DBE＝15°，∴∠ABE＝∠ABD+∠DBE＝45°，∵EK⊥AB，∴△BEK是等腰直角三角形，∴BK＝EK＝，∵∠AEK＝90°﹣∠A＝30°，∴AK＝EK＝1，AE＝2AK＝2，∴AC＝AB＝AK+BK＝1+，∴CE＝AC﹣AE＝﹣1；（2）证明：∵∠FBE＝∠FAB＝60°，∠ABC＝∠C＝60°，∴∠ABF＝∠CBE，∠FAE＝∠C，在△ABF和△CBE中，，∴△ABF≌△CBE（ASA），∴BF＝BE，∵∠FAB＝60°，∴△BEF是等边三角形，∴BF＝EF，作EM⊥BC于M，如图2所示：∵BE平分∠CBD，∴ME＝DE，∵EG＝2DE，∴EG＝2ME，∴∠EGM＝30°，∵∠EGM＝∠CBE+∠GEB，∴∠GEB＝30°﹣15°＝∠CBE，∴BG＝EG，在△BFG和△EFG中，，∴△BFG≌△EFG（SSS），∴∠BGF＝∠EGF，∵BG＝EG，∴GF⊥BE．24．当一个多位数的位数为偶数时，在其中间位插入一位数k，（0≤k≤9，且k为整数）得到一个新数，我们把这个新数称为原数的关联数．如：在435729中间插入数字6可得435729的一个关联数4356729；在435729中间插入数字7可得435729的另一个关联数4357729．请阅读以上材料，解决下列问题：（1）若一个两位数M的关联数是原数的9倍，求满足条件的M的关联数；（2）对于一个六位数N＝（1≤x≤5，0≤y≤9，0≤z≤7且x、y、z为整数），在N的中间位插入一位数（z+2），得其关联数，已知N为21的倍数，且N的关联数与N 之差为9的倍数，求证：x+y+1能被3整除．【分析】（1）设原数为＝10a+b，其关联数为＝100a+10m+b，根据关联数为原数的9倍即可得出b与a，m之间的关系，结合a、b、m即可得出结论；（2）根据N的关联数与N之差为9的倍数得出z＝7，而原数是21的倍数，得出3（33x+3y+2）+（x+y+1）是3的倍数，继而结论．【解答】解：（1）设原数为＝10a+b，其关联数为＝100a+10m+b，∵＝9∴100a+10m+b＝9×（10a+b），∴5a+5m＝4b∴5（a+m）＝4b∵b、m为整数，a为正整数，且a、b、m均为一位数，∴b＝5，a+m＝4；∴或或或；∴满足条件的三位关联数为135，225，315，405；（2）证明：原六位数N＝＝1001（100x+10y+z），在N的中间位插入一位数（z+2），N的关联数＝＝10001（100x+10y+z）+1000（z+2）N的关联数与N之差＝10001（100x+10y+z）+1000（z+2）﹣1001（100x+10y+z）＝9000（100x+10y+z）+1000（z+2）∵N的关联数与N之差为9的倍数，∴1000（z+2）是9的倍数，又∵0≤z≤7，故z＝7又∵原六位数N＝＝1001（100x+10y+z）＝7×143×（100x+10y+z），它是21的倍数，∴100x+10y+7＝3（33x+3y+2）+（x+y+1）是3的倍数，∴（x+y+1）是3的倍数；。

重庆八中初2019级寒假复习检测英语试题（满分：150分考试时间：120分钟）第I卷（共95分）I.听力测试（略）30分。

II.单项选择。

（每小题1分，共15分）从A、B、C、D四个选项中选出可以填入空白处的正确答案，并把答题卡上对应题目的答案标号涂黑。

21.The art pieces in the museum made of ________ glass are worth watching. I’d like to buy _______ to add to the beauty of my new house.A. a; itB.\;oneC. a; oneD./;it22.—How old is your grandpa? He looks energetic.—Yeah, it is hard to imagine he is already in his __________.A. seventiesB. seventyC. seventiethD. seventieths23.He was advised to eat ________ hamburgers and drink ________ cola to keep fit.A. fewer; fewerB. less; lessC. fewer; lessD. less; fewer24.—Mom, how should I take the medicine?—oh, dear, I am pretty busy with my work right now. Please read the ________by yourself.A. instructionsB. predictionsC. productionsD. directions25.-—I heard that David was________ boy among all the boys.—Oh, really? You mean he was ________ than the others?A. more creative; more creativeB. the most creative; the most creativeC. more creative; the most creativeD. the most creative; more creative26.I prefer _______ rather than________ when I feel tired and stressed out.A. playing sports, listening to musicB. to play sports, listening to musicC. playing sports, listen to musicD. to play sports, listen to music27.—Did the fact cat notice that there was a mouse running toward the window?—I guess she didn’t. She__________ the fish happily with all her heart and soul.A.is eatingB. has eatenC. was eatingD.ate28.It’s a great pleasure for Peppy and George to help their parents _______their tent in the open fieldand spend a whole night sleeping in it there on the Children’s Day.A.look upB. take upC. put upD. call up29.---The number of old people in China is increasing rapidly.---I believe they _______ better care of in the future with the development of our country.A.can takeB. are takingC. are takenD. can be taken30.-----When do you plan to tell everyone the truth?-----Not ________ anyone finds out something is wrong.A.afterB. whenC. althoughD. until31.The Jaguar（捷豹）cars_______ well in China these years because the brand________ to an Indian company in 2008 that Chinese don’t truth.A.don’t sell; was soldB. aren’t sold; soldB.don’t sell; sold D. aren’t sold; was sold32.All the students_________ from school since the class ended except Jude. He is really hard-working.A.have leftB. has leftC. have been awayD. has been away33.Mr. Green has been coughing these days so his doctor________ him not to smoke.A.warnedB. keptC. suggestedD. had34.----Will Luckin Coffee finally take the place of Starbucks in our neighborhood?----__________.Because it is much cheaper and tastes great as well.A.I’m afraid notB. I’m afraid soC.I hope notD.I expect not35.------I heard many people were talking about the movie “The Wondering Earth”. I really wonder_________.------Probably the creativity of those Chinese who created the first hardcore science fiction.A.why was it so popularB. what it has made so popularB.what has made it so popular D. where it is so popularIII.完型填空。