四川省成都外国语学校2017-2018学年八年级入学考试英语试卷

成都外国语学校2018-2019学年度上期入学考试高二英语笔试试卷注意事项：1.本试卷分第I卷（选择题）和第II卷（非选择题）两部分。

2.本堂考试120分钟，满分150分。

3.答题前，考生务必先将自己的姓名、考号准确无误地填写在答题卡规定的位置上，并使用2B铅笔填涂。

4.考试结束后，将答题卡交回，答题卡不得折叠。

第I卷（选择题共70分）第一部分阅读理解（共两节，满分40分）第一节 (共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的四个选项(A、B、C和D)中, 选出最佳选项。

并在答题卡上将该选项涂黑。

AWashington, D.C. Bicycle ToursCherry Blossom Bike Tour in Washington, D.C.Duration:3 hoursThis small group bike tour is a fantastic way to see the world-famous cherry trees with beautiful flowers of Washington, D.C. Your guide will provide a history lesson about the trees and the famous monuments where they blossom. Reserve your spot before availability - and the cherry blossoms - disappear!Washington Capital Monuments Bicycle TourDuration:3 hours (4 miles)Join a guided bike tour and view some of the most popular monuments in Washington,D.C. Explore the monuments and memorials on the National Mall as your guide shares unique facts and history at each stop. Guided tour includes bike,helmet, cookies and bottled water.Capital City Bike Tour in Washington, D.C.Duration:3 hoursMorning or Afternoon, this bike tour is the perfect tour for D.C. newcomers and locals looking to experience Washington, D.C. in a healthy way with minimum effort.Knowledgeable guides willentertain you with the most interesting stories about Presidents, Congress, memorials, and parks. Comfortable bikes and a smooth tour route (路线) make cycling between the sites fun and relaxing. Washington Capital Sites at Night Bicycle TourDuration:3 hours (7 miles)Join a small group bike tour for an evening of exploration in the heart of Washington, D.C. Get up close to the monuments and memorials as you bike the sites of Capitol Hill and the National Mall. Frequent stops are made for photo taking as your guide offers unique facts and history. Tour includes bike,helmet, and bottled water. All riders are equipped with reflective vests and safety lights.1. Which of the following does the bicycle tour at night provide?A. City maps.B. Cameras.C. Meals.D. Safety lights.2. Which tour do you need to book in advance?A. Cherry Blossom Bike Tour in Washington, D.C.B. Washington Capital Monuments Bicycle Tour.C. Capital City Bike Tour in Washington,D. Washington Capital Sites at Night Bicycle Tour.3. What will you do on the Capital City Bike Tour?A. Meet famous people.B. Go to a national park.C. Visit well-known museums.D. Enjoy interesting stories.【答案】1. D 2. A 3. D【解析】本文是一则广告，介绍了华盛顿特区四项自行车旅行项目Cherry Blossom Bike Tour in Washington, D.C、Washington Capital Monuments Bicycle Tour、Capital City Bike Tour in Washington, D.C和Washington Capital Sites at Night Bicycle Tour以及这些项目的时长和特色要求。

XX—2018学年度第一学期八年级英语第一次月考成绩试卷分析一、试题特点本次英语试题是梯级强化训练月考试题，难易程度适中，严格按照中考的出题模式出的试卷，测查的范围就是Units1—2的知识，知识点考查详细，采用各种形式检测学生对英语基础知识的掌握程度及灵活综合运用语言的能力。

二、考试总体情况两个班的两极分化非常严重，普遍成绩较低。

本次考试学生整体情况都不理想。

一方面是孩子们做这类试卷形式的题很少，另一方面孩子们比较浮躁，考试态度不是很端正。

三、试卷分析、听力此次考试的听力题目的是从一开始就要让孩子们重视听力，听说读写全面发展。

孩子们的听力层次不齐，有的孩子可以拿满分，有的孩子低至10来分。

以后还是要加强孩子们的听力训练。

2、完形填空完形填空是考试的基本题型，本次完形填空孩子们都比较熟悉。

比较简单，但是答题情况并不理想。

3、阅读理解三篇阅读理解，严格按照中考模式出题。

A篇阅读是判断正误，考察第一单元的知识。

B篇阅读和篇阅读的题都很简单，答题较为理想。

4、完成句子这道题可以很好的反映出孩子们记单词的情况。

通过试卷答题情况，反映出孩子们平时没有好好记单词，即使我们每节都有听写单词的环节，但是孩子们知识当成任务完成即可，没有灵活的运用知识。

、短文填空本次短文填空有10个空，是比较简单的，但是男孩子们的答题情况不好。

主要是因为他们对待英语考试的态度不端正。

6、任务型阅读这个阅读是文的类似版本，读起来比较流畅，试题也比较简单，但是大部分学生没有写出来。

7、完成对话这道题是要求孩子们写出英文句子，但是有部分学生理解英文太弱，没有英语的语言沟通思维，同时大部分孩子不记单词，所以这道题做的不是很好。

8、作文作文历来都是考试的一个重中之重的任务。

这次的考试作文题是我从第五单元的知识提取出来的，但是孩子答得不好，能的满分的学生寥寥无几。

而且孩子的作文反映出很强的中文思维。

四、教学建议综合学生答卷中的问题，为了今后更好的教学，提出以下教学建议：、基础知识的落实要常抓不懈，尤其在复习期间应巧抓落实。

Why don’t you talk to your parents 一、单项选择。

（10分）1．—Do you like your new neighbors?—No. The ________ between us are getting worse，I think.A. resultsB. invitationsC. relationsD. reasons【答案】C2. My aunt told my father ________ yesterday afternoon.A. call her upB. to call her upC. call up herD. to call up her【答案】B3. —Could you please have a walk with me?—Sorry，I ________．I have something important to do now.A. mustn'tB. needn'tC. can'tD. may not【答案】C4. I am not happy, because I argued ________ my best friend ________ the problem.A. for；aboutB. for；onC. with；aboutD. with；for【答案】C5. —How long may I ________ the book?—________ a week.A. keep；InB. borrow；FromC. return；ToD. keep；For【答案】D6. If you get on well with your classmates，you ________ your school life better.A. enjoyB. will enjoyC. enjoyedD. are enjoying【答案】B7. —Did you call her up last night?—No，I didn't. I wrote her a letter ________.A. insteadB. yetC. eitherD. however【答案】A8. —I ________ my best friend yesterday morning.—Why not call her up and say sorry to her?A. argued withB. looked afterC. hung out withD. depended on【答案】A9. —________ do you think of after－school activities?—I think ________ is important for children to join them.A. What；itB. How；itC. How；thatD. What；that【答案】A10. —Could you go shopping with me tomorrow?— ________．My father and I will go to Wuhan tomorrow.A. I think soB. Yes, I hope soC. I'm afraid soD. Sorry, I'm afraid I can't【答案】D二、完型填空（10分）Dear Peter，Without knowing more about you，it is hard for me to give you some good advice.But first，I am sure that you are ___16___. You said that nobody would care if you left home. What about your ___17___？And other family members？It seems that you are very ___18___. You'd better go to see a doctor or talk ___19___ your parents. They will be able to help you.Second，I'm sure there's someone else in your class who feels lonely，___20___. You never know ___21___ other people feel. Try to make friends with your classmates.And you could ___22___ a club to meet new people and make friends，too.You ___23___ find happiness by yourself.So my ___24___ advice is to write a list of all the good things about yourself，learn to like yourself，and then ___25___ will see your confidence (信心) and like you，too.Editor16. A. right B. wrong C. OK D. well17. A. teachers B. classmates C. friends D. parents18. A. popular B. tired C. sad D. kind19. A. to B. about C. of D. on20. A. too B. either C. also D. as well21. A. why B. how C. when D. where22. A. take part in B. join C. join in D. take23. A. mustn't B. shouldn't C. couldn't D. need to24. A. finally B. last C. end D. one25. A. other B. the other C. anotherr D. others【答案】16. B 17. D 18. C 19. A 20. A 21. B 22. B 23. D 24. B 25. D三、阅读理解（10分）Everyone gets angry. Many things may make you angry. Maybe your teacher gave you too much homework. Or maybe a friend borrowed your favorite video game and then broke it. You may get angry when something doesn't go your way. Maybe you get mad at yourself when your team loses an important game. Or maybe you become a road rager(路怒族) when a driver accidentally cuts in front of you. That makes you angry! You need to know what to do with your anger. Here are some things you can do when you feel angry：Talk to a friend you can trust.Count(数数) to ten.Get or give a hug.Take some exercise.Draw a picture of our anger.Play a video game.Run around the outside of the house five times as fast as you can.Sing along with the CD player.Think good thoughts(maybe about a fun vacation or your favorite sport).Take a bike ride, go skating, play basketball — do something active!Never getting angry is impossible. But when you are angry, you can do something and it can make things better or worse. Don't let anger be the boss of you. Be in control of it!26. In the passage, the writer gives us _______ pieces of advice.A. tenB. elevenC. twelve．thirteen27. The underlined part "when something doesn't go your way" probably means ____A. when you get lostB. when you are on a wrong wayC. when you meet with something difficultD. when things don't go as you imagine28. If you run around the outside of your house five times, and your house is a circle of 260 meters, so you'll run _______.A. 1,300 kilometersB. 1,300 metersC. 1,360 kilometersD. 1,360 meters29. As for doing with anger, which of the following is NOT mentioned in the passage?A. Talk to a friend you believe.B. Get a hug.C. Have a fight with a friend.D. Think good thoughts.30. The passage is mainly about _______.A. how to deal with your angerB. letting anger be the boss of youC. drinking more water when you're angryD. doing something active when you're angry【答案】26. A 27. D 28. B 29. C 30. A四、任务型阅读（10分）Michael went back to Fullerton, his hometown.His visit to Fullerton was very special to him.①他出生在那儿，在那儿长大。

……………………………………………………………………2017~2018学年八年级第一学期第一次月考总分核分人英语试卷（人教版）本试卷分卷玉和卷域两部分。

卷玉为选择题，卷域为非选择题。

本试卷共6页。

总分120分，考试时间120分钟。

（可在总分基础上增加5~10分卷面分）Start exercising before it's too late!学校班级姓名考场考号座位号卷玉（选择题，共70分）听力部分（第一节）得分评卷人玉援听句子，选出句子中所包含的信息。

（共5小题，每小题1分，计5分）（（（（）1. A. back B. duck C. quick………………）2. A. 2% B. 12% C. 20%）3. A. junk food）4. A. I had a good time.B. My vacation was terrible.B. delicious foodC. healthy foodC. I didn't have fun on my vacation.）5. A. Lily watches movies every day.B. Lily always watches TV.（………………C. Lily hardly ever watches TV.得分评卷人域援听句子，选出该句的最佳答语。

（共5小题，每小题1分，计5分）………………考试须知（（（（（）6. A. The Great Wall.）7. A. I'm busy.B. With my parents.B. Read books.C. Last year.淤答卷前请将密封线左侧的项目填写清楚。

C. By using the Internet.C. Shanghai is beautiful.）8. A. It was great.）9. A. Four days.）10. A. Yes, she is.B. I like Shanghai.B. Four times a week.C. Basketball.B. No, she doesn't.C. No, she didn't.………………于答案须用蓝色、黑色钢笔或者圆珠笔书写。

2017-2018学年第二学期期中考试八年级英语试卷分值：100分时间：90分钟命题人：徐燕儿审核人：周琴第一部分听力部分（20分）一、听力（本题有15小题，第一节、第二节每小题1分，第三节每小题2分，共20分）第一节：听小对话，选择正确答案。

每段对话仅读一遍。

1. What’s wrong with the man?A. He had a cold.B. He had a cough. C .He has a toothache.2. Where did the man go yesterday?A. He went to visit the old people.B. He went to the hospital.C. He went to play with his classmates.3. What does the girl often do after school?A. Do homework.B. Help mom do chores.C. Play the piano.4. What will the man do tonight?A. Watch the TV showB. Read a book.C. Go to the zoo tosee monkeys.5. How is the weather today?A. RainyB. Sunny.C. Cloudy.第二节：听对话，回答问题。

每段对话读两遍。

听下面一段对话，回答第6—7小题。

6. What did the man think of the film?A. Boring.B. Relaxing.C. Interesting .7. What do they plan to do?A.Go window shopping.B. Go to Window of the World.C. Go to a park.听下面一段对话，回答第8—10小题。

【区级联考】四川省巴中市恩阳区2017-2018学年八年级下学期期中考试英语试题四川初二期中2019-04-07311次一、单选题1. My father likes tea nothing in it.A．of B．have C．with2. Eric arrived on time, it was the rush hour.A．although B．because C．unless3. I’ve no idea if they ______ boating if it tomorrow.A．will go; rains B．will go; will rain C．go; rains4. I saw him when I passed by.A．ran B．to run C．running5. His parents don’t have _____ , they are .A．enough time; enough busy B．time enough; busy enough C．enough time; busy enough6. —Hi, Li Ming. Why are you in such a hurry?—_______ the 7:00 train.A．To catch B．Catching C．Catch7. He lives _______ in the village, but he never feels_______.A．alone; alone B．alone; lonely C．lonely; alone8. ----We’ll do what we can ______ English well.----You’re right.A．study B．to study C．will study9. Missing the train means ________ for an hour.A．wait B．to wait C．waiting10. Smoking is bad for your health. You should .A．give up it B．give it up C．give up them11. —_____ you please play tennis with me? —Sorry, I _____.A．Could; can’t B．Could; couldn’t C．Can; couldn’t12. There is a bird in the tree now.A．sings B．singing C．is singing13. —I'm not going swimming tomorrow afternoon. — . I have to clean up my bedroom.A．So am I B．Neither am I C．Neither I am14. My teacher made _______ easier to work out this problem in his way.A．this B．that C．it15. At nine yesterday morning, I ______ an English class while they ______ a PE class.A．was having; were having B．was having; had C．had; were having16. —How long may I _______ your book?—For a week. But you mustn’t ________ it to others.A．borrow, lend B．keep, lend C．keep, borrow17. Bob used ______ on the right in China, but he soon got used ______ on the left in England.A．to drive; to drive B．to driving; to driving C．to drive; to driving18. ---- I found my sister ______ my things and took away my magazines. What should I do?---– I guess you should tell her it’s not right to do so.A．looked through B．looked up C．looked for19. —Mike looks unhappy. What’s wrong?—It seems that he has some trouble ________ a problem.A．to solve B．solving C．solves20. —You look too tired. Why not ________ a rest?—Sounds good.A．stop having B．to stop having C．stop to have二、完型填空21. Some children wish to be writers some day. They want to write stories or books for people _____. That's good！It's good to write ___ for people t o read！But they should know that they need to be good readers first ____ they are really good writers. They should read a lot of books，instead of watchin g TV and spending a lot of time playing games when they are free.There is more fun in reading. You want to look for more books to read.Before you decide ____ a good writer，you'd better say to ___，“I must read more and more！”【小题1】A．read B．to read C．reading【小题2】A．everything B．anything C．something【小题3】A．before B .after C. until【小题4】A．to do B．to be C．to have【小题5】A．you B．yourself C．yours22. A boy lost his arms in an accident and his father lost his life. Since then, he had to ___the arms of his younger brother. Except for writing with his toes, he could hardly do ___ in his life.As the two brothers grew up together, they had lots of ____ and they often argued. Then one day, his younger brother ____ him. So he was very sad an d didn’t know _____ to do.A girl lost her hands because of a fire. Though her elder sister wanted to ____ her, she decided to be completely independent. At school, she always stu died hard. Once she wrote the following in her composition, “I am ____. Though I lost my hands, I still have legs. Though my wings are broken, my heart c an still fly.”One day, the boy and the girl were both invited ___ a television interview program. They both were asked to write something on a piece of paper with t heir toes. The boy wrote “My younger brother’s arms are my arms” ____ the girl wrote “Broken wings, ____ heart”.【小题1】A．go on B．depend on C．look for【小题2】A．anything B．something C．nothing【小题3】A．differences B．hobbies C．problems【小题4】A．hit B．left C．hated【小题5】A．who B．how C．what【小题6】A．leave B．take care of C．write to【小题7】A．sad B．lucky C．unlucky三、阅读单选【小题8】A ．to B ．on 【小题9】A ．as B ．so 【小题10】A ．jumpingB ．broken23.FFINE COLD MEDICINE A: General information.FFINE is a cold medicine.B : How should I use FFINE tablets?Adults should take two pills of FFINE a day: one in the morning and one at night. Teenagers form 13 to 19 should take one pill a day: Do not take FFINE fo r more than three days.Children from 6 to 12 should use FFINE as instructed by doctors.C : Who should not take FFINE?Children under 6.People with high blood pressure.People with heart disease.【小题1】The medicine mentioned in the passage is for .A ．the coldB ．high blood pressureC ．heart disease【小题2】If Mr. Gates who is 36 needs to take FFINE, how many pills does he need to take in three days?A ．Two pills.B ．Three pills.C ．Six pills【小题3】If Lily is seven years old and she needs to take FFINE, .A ．she can take one pill a dayB ．she shouldn’t take FFINE for more than three daysC ．she should use FFINE as instructed by doctors 【小题4】The FFINE medicine is suitable for .A ．people with high blood pressure B ．people above 13C ．people with heart disease【小题5】What’s the main idea of the passage?A ．It is the instruction of a kind of medicine.B ．It tells us some ways to prevent the cold.C ．It tells us some ways to stay healthy.C ．flyingC ．while C ．for24. Many people asked me how I started Pajama (睡衣) Program, but in fact, it seemed that Pajama Program came to me. I never planned to start it. In the beginning, I just wanted to find my purpose (意义) in life.I visited a children’s home. I read to them in the evening once a week. One night I watched them go to sleep. There was no changing clothes, no bedtime sto ries, no hugs from parents. Bedtime should not be like that. I decided to send some pajamas to the children’s home. I couldn’t change the children’s life, but I could give them warm, clean pajamas to sleep in.The next week I took some pajamas to the children’s home. One little girl didn’t take the pajamas from me. She asked me quietly, “What are these?”“They’re pajamas,” I said.“When do I wear them?”“When you go to bed at night.”She still didn’t understand.“What do you usually wear to bed?” I asked her.“My pants,” she said.I felt sad. A few weeks later, it seemed that a “raindrop” fell onto my head and the words PAJAMA PROGRAM spoke to me loud. Then I started to tell everyone to give me new pajamas for my birthday, Christmas ..., and I gave them to children in need. And then I found my purpose in life.【小题1】From the passage we know the writer ______.A．gave the homeless children hugsB．went to the children’s home every weekC．gave much money to the children’s home【小题2】What did the writer think the children should do at bedtime?①change clothes②listen to stories③ play games with parents ④ get hugs from parentsA．①②③B．①②④C．①②③④【小题3】Why didn’t the little girl take the pajamas from the writer?A．Because she didn’t like them.B．Because she liked wearing her pants to bed.C．Because she didn’t know what they were.【小题4】How did the writer feel after she heard the little girl’s words?A．Tired.B．Sad.C．Angry.【小题5】What is the best title for the passage?A．What’s the purpose of life B．Welcome to Pajama ProgramC．The “raindrop” that changed my life25. Let’s Learn More about Each OtherAre the lives of city kids the same as those in villages? In many ways, they are very different. But what are the differences?Hu Peng of Wuhan and four friends decided to find them out. Earlier this month, they lived for a week in Caidian, a village near Wuhan. Hu and his fri ends went door to door in Caidian and asked the kids there lots of questions. They wanted to learn more about village kids’ everyday lives, so they asked the se questions like —Do your parents teach you how to do housework? How much money do you usually spend on dinner? What would you do if a thief came into your house? They also asked 150 city kids the same questions.What’s the Difference?Last week the team gave a report to their class. There are lots of differences between children’s lives in cities and those in villages. The biggest differen ce is independence. Hu’s team said that 60 percent of city kids couldn’t do much housework, but 90 percent of village kids could care for themselves.City kids told Hu they cared about school a lot, and they had no time for washing clothes or making their beds. Village kids said they helped their paren ts with housework a lot. They cooked, did some cleaning and fed animals. Hu’s team also found that village kids had less pocket money. Many never used c omputers. They played in rivers or on mountains. Some didn’t really like to make new friends.Hu and his friends said their trip gave them more self-confidence because they were doing something by themselves. But it also made them a little worr ied because they saw they still had a lot to learn. “When we grow up, our parents can’t take care of us,” said Hu. “We have to learn to take care of ourselve s.” Shen Guanquan, one of Hu’s friends, said, “When children learn to care for themselves, they learn to do lots of things.”【小题1】How many city kids went to learn about village kids’ everyday lives?A．Three.B．Four.C．Five.【小题2】They found that most village kids ________.A．had no time for their study B．didn’t care much about schoolC．helped their parents with housework a lot【小题3】From the article, the biggest difference is ____ between city kids and village kids.A．independence B．time C．self-confidence【小题4】The underlined word “it” in the last paragraph means _________.A．their trip B．their report C．city kids【小题5】Hu Peng and his friends finished their report by _________.A．questioning village kids’ parentsB．questioning village kids and city kidsC．watching village kids’ everyday lives26. Years ago, if a person had some problem in his life, he might go home and write in his diary. Now he might go onto the Internet and write about them i n a blog.Differences between a blog and a diaryUsually, a person thinks of his diary as a book full of secrets. He does not want to share. But in the blog, anyone can read what he writes.I have a little sister, and sometimes I go onto the Internet to read her blog. She writes about swimming practice and not studying enough for her chemistry ex am. When I was her age, I wrote about the same things, but only in my diary. Then, after I finished writing, I would put my diary in a secret place because I was worried that my sister might read it!Problems with bloggingThe biggest problem with blogging is that anyone can read what you write. If I was angry with a friend and wrote something bad about her in my diary, she would never know. However, if my sister wrote something bad about a friend, that friend might read her blog and get angry. Because we do not always think about things carefully before we write about our days. It is easy to hurt others’ feeling in a blog. So we have to be very careful about what we write.Keeping in touch with (保持联系)friendsBlogging has both good and bad points, of course. People choose to blog because they know that their friends will read what they write.If I was feeling sad one day and wrote in my diary “Nobody cares about me,” no one would know about it. However, if my sister wrote the same sentence in her blog, her best friends would quickly reply and tell her how much they like her. Blogs help people keep in touch with their friends and know what the peo ple around them are doing.Blogs are a very good way to write about daily life, if people are careful aout what they write. However, I still like writing better in my diary!【小题1】What’s the difference between blogs and diaries according to the passage?A．Blogs can be read by others while diaries only by writers themselves.B．Blogs are always good while diaries are sometimes bad for writers.C．Blogs are a good way to write about life while diaries about other things【小题2】It is easy to hurt others’ feeling in blogs, because people.A．usually write about their daily life thereB．only write something bad about others thereC．don't always think carefully before writing there【小题3】What is the biggest problem with blogging?A．Help people keep in touch with their friends.B．Someone may read your blog and get angry with you.C．Anyone may read what you write.【小题4】We can learn from the passage that.A．the writer will choose to blog so that others can keep in touch with himB．the writer would rather keep diaries than write in a blogC．the writer doesn't like her sister's writing in a blog【小题5】What’s the best title of this passage?A．Differences between a blog and a dairyB．Problems with bloggingC．Keeping in touch with friends.四、补全对话5选527. 从对话后的选项中选择适当的选项补全对话。

教育精品学习资源 教育精品学习资源 International Charities

教学 目标 1. Can get useful information from the listening material. 2. Able to skillfully use the dialogue.

教 学 重、难 点 The same as the aims

教 学 设 计 Step 1:Show" Learning aims" Step2:Show" Guide One"to the students. Guide One 10＇ 一Listen to the tape and answer some questions. 1What’s the matter with the boy? 2 How long has the boy felt bad? 3 Will the boy be all right in a few days? 二True or False. 1) The boy does not look very well. 2) His face is red. 3) He has felt like this for three days. 4) He will be all right in a few days. 5) He has to take the medicine four times a day. 4. Work in pairs and make a new conversation. Step3.Show" Guide Two"to the students. Guide Two 10＇ Let students Listen to the tape and read part B 2 Read and act out Have a match ! Who can do it best ? Step4:Show“Guide Three” to the students. 教育精品学习资源 教育精品学习资源 Guide Three 10＇ Study skills Punctuation 英语标点符号的使用 Let students look at using punctuation marks and then complete the exercises on page 103 Class Exercise （一） Millie has written about her experience as a host of a charity show. Help her add the correct punctuation marks. The big day come very quickly, and suddenly it was the night before the charity show. I could not sleep at all that night because I was so excited, “Will it be a success?” I kept asking myself. Twenty minutes before the big event, the doors opened and many people came into the theatre. “No time to be nervous any more. This is it!” I told myself. A lot of people came to watch the show. They were making a lot of noise, so I had to speak loudly Class Exercise （二） Complete the exercises on the bookwork 教育精品学习资源

2017-2018学年四川省成都市锦江区嘉祥外国语学校八年级（上）期末数学试卷一、A卷（100分）选择题（每小题3分，共30分）1．（3分）下列四个图案中，是轴对称图形，但不是中心对称图形的是（ ）A．B．C．D．2．（3分）函数y＝+中自变量x的取值范围是（ ）A．x≤2B．x≤2且x≠1C．x＜2且x≠1D．x≠13．（3分）如果点P（m，1+2m）在第二象限，那么m的取值范围是（ ）A．B．C．m＜0D．4．（3分）已知是方程组的解，则a+b＝（ ）A．2B．﹣2C．4D．﹣45．（3分）下列命题中的假命题是（ ）A．一组邻边相等的平行四边形是菱形B．一组邻边相等的矩形是正方形C．一组对边平行且相等的四边形是平行四边形D．一组对边相等且有一个角是直角的四边形是矩形6．（3分）如图，点O是矩形ABCD的中心，E是AB上的点，沿CE折叠后，点B恰好与点O重合，若BC＝3，则折痕CE的长为（ ）A．B．C．D．67．（3分）如图，正方形ABCD的对角线AC，BD相交于点O，DE平分∠ODA交OA于点E，若AB＝4，则线段OE的长为（ ）A．B．4﹣2C．D．﹣28．（3分）已知一次函数y＝kx+b（k≠0）图象过点（0，2），且与两坐标轴围成的三角形面积为2，则一次函数的解析式为（ ）A．y＝x+2B．y＝﹣x+2C．y＝x+2或y＝﹣x+2D．y＝﹣x+2或y＝x﹣29．（3分）济南市某储运部紧急调拨一批物资，调进物资共用4小时，调进物资2小时后开始调出物资（调进物资与调出物资的速度均保持不变）．储运部库存物资S（吨）与时间t （小时）之间的函数关系如图所示，这批物资从开始调进到全部调出需要的时间是（ ）A．4小时B．4.4小时C．4.8小时D．5小时10．（3分）如图，点P为定角∠AOB的平分线上的一个定点，且∠MPN与∠AOB互补，若∠MPN在绕点P旋转的过程中，其两边分别与OA、OB相交于M、N两点，则以下结论：（1）PM＝PN恒成立；（2）OM+ON的值不变；（3）四边形PMON的面积不变；（4）MN的长不变，其中正确的个数为（ ）A．4B．3C．2D．1二、填空题（每题4分，共16分）11．（4分）因式分解：（x2+4）2﹣16x2＝ ．12．（4分）一次函数y1＝kx+b与y2＝x+a的图象如图，则kx+b＞x+a＞0的解集是 ．13．（4分）在平行四边形ABCD中，AD＝13，∠BAD和∠ADC的角平分线分别交BC于E，F，且EF＝6，则平行四边形的周长是 14．（4分）如图，在菱形ABCD中，AB＝4cm，∠ADC＝120°，点E、F同时由A、C两点出发，分别沿AB、CB方向向点B匀速移动（到点B为止），点E的速度为1cm/s，点F的速度为2cm/s，经过t秒△DEF为等边三角形，则t的值为 ．三、解答题（共54分）：15．（15分）（1）计算（2）解不等式组，并写出不等式组的非负整数解．（3）解分式方程：＝+16．（6分）计算：已知＝，求（﹣）÷（+x）的值．17．（7分）对x，y定义一种新运算T，规定：T（x，y）＝（其中a，b均为非零常数），这里等式右边是通常的四则运算，例如：T（0，1）＝＝b，已知T （1，1）＝2.5，T（4，﹣2）＝4．（1）求a，b的值；（2）若关于m的不等式组恰好有2个整数解，求实数P的取值范围．18．（8分）如图所示，已知△ABC的三个顶点的坐标分别为A（﹣2，3）、B（﹣6，0）、C （﹣1，0），（1）请直接写出点A关于原点O对称的点的坐标；（2）将△ABC绕坐标原点O逆时针旋转90°，求出A′点的坐标．（3）请直接写出：以A、B、C为顶点的平行四边形的第四个顶点D的坐标．19．（8分）京广高速铁路工程指挥部，要对某路段工程进行招标，接到了甲、乙两个工程队的投标书．从投标书中得知：甲队单独完成这项工程所需天数是乙队单独完成这项工程所需天数的；若由甲队先做10天，剩下的工程再由甲、乙两队合作30天完成．（1）求甲、乙两队单独完成这项工程各需多少天？（2）已知甲队每天的施工费用为8.4万元，乙队每天的施工费用为5.6万元．工程预算的施工费用为500万元．为缩短工期并高效完成工程，拟安排预算的施工费用是否够用？若不够用，需追加预算多少万元？请给出你的判断并说明理由．20．（10分）在菱形ABCD中，∠BAD＝60°．（1）如图1，点E为线段AB的中点，连接DE，CE，若AB＝4，求线段EC的长；（2）如图2，M为线段AC上一点（M不与A，C重合），以AM为边，构造如图所示等边三角形AMN，线段MN与AD交于点G，连接NC，DM，Q为线段NC的中点，连接DQ，MQ，求证：DM＝2DQ．一、填空题（每题4分，共20分）B卷（50分）21．（4分）已知1＜x＜2，，则的值是 ．22．（4分）已知直线y＝x+（n为正整数）与坐标轴围成的三角形的面积为S n，则S1+S2+S3+…+S2012＝ ．23．（4分）已知∠ABC＝60°，点D是其角平分线上一点，BD＝CD＝6，DE∥AB交BC 于点E．若在射线BA上存在点F，使S△DCF＝S△BDE，请写出相应的BF的长：BF＝ ．24．（4分）如图，四边形ABCD中，∠A＝∠ABC＝90°，AD＝2，BC＝5，E是边CD的中点，连接BE并延长与AD的延长线相交于点F．若△BCD是等腰三角形，则四边形BDFC 的面积为 ．25．（4分）如图1，把一张正方形纸片对折得到长方形ABCD，再沿∠ADC的平分线DE折叠，如图2，点C落在点C′处，最后按图3所示方式折叠，使点A落在DE的中点A′处，折痕是FG，若原正方形纸片的边长为9cm，则FG＝ cm．二、解答题（共30分）26．（8分）某数码专营店销售甲、乙两种品牌智能手机，这两种手机的进价和售价如下表所示：甲乙进价（元/部）43003600售价（元/部）48004200（1）该店销售记录显示．三月份销售甲、乙两种手机共17部，且销售甲种手机的利润恰好是销售乙种手机利润的2倍，求该店三月份售出甲种手机和乙种手机各多少部？（2）根据市场调研，该店四月份计划购进这两种手机共20部，要求购进乙种手机数不超过甲种手机数的，而用于购买这两种手机的资金低于81500元，请通过计算设计所有可能的进货方案．（3）在（2）的条件下，该店打算将四月份按计划购进的20部手机全部售出后，所获得利润的30%用于购买A，B两款教学仪器捐赠给某希望小学．已知购买A仪器每台300元，购买B仪器每台570元，且所捐的钱恰好用完，试问该店捐赠A，B两款仪器一共多少台？（直接写出所有可能的结果即可）27．（10分）如图1，直线l1：y＝﹣x+3与坐标轴分别交于点A，B，与直线l2：y＝x交于点C．（1）求A，B两点的坐标；（2）求△BOC的面积；（3）如图2，若有一条垂直于x轴的直线l以每秒1个单位的速度从点A出发沿射线AO 方向作匀速滑动，分别交直线l1，l2及x轴于点M，N和Q．设运动时间为t（s），连接CQ．①当OA＝3MN时，求t的值；②试探究在坐标平面内是否存在点P，使得以O、Q、C、P为顶点的四边形构成菱形？若存在，请直接写出t的值；若不存在，请说明理由．28．（12分）问题背景：如图1，等腰△ABC中，AB＝AC，∠BAC＝120°，作AD⊥BC于点D，则D为BC的中点，∠BAD＝∠BAC＝60°，于是＝＝；迁移应用：如图2，△ABC和△ADE都是等腰三角形，∠BAC＝∠DAE＝120°，D，E，C 三点在同一条直线上，连接BD．①求证：△ADB≌△AEC；②请直接写出线段AD，BD，CD之间的等量关系式；拓展延伸：如图3，在菱形ABCD中，∠ABC＝120°，在∠ABC内作射线BM，作点C 关于BM的对称点E，连接AE并延长交BM于点F，连接CE，CF．①证明△CEF是等边三角形；②若AE＝5，CE＝2，求BF的长．2017-2018学年四川省成都市锦江区嘉祥外国语学校八年级（上）期末数学试卷参考答案与试题解析一、A卷（100分）选择题（每小题3分，共30分）1．（3分）下列四个图案中，是轴对称图形，但不是中心对称图形的是（ ）A．B．C．D．【分析】根据轴对称图形与中心对称图形的概念求解．【解答】解：A、是轴对称图形，不是中心对称图形，符合题意；B、不是轴对称图形，也不是中心对称图形，不符合题意；C、不是轴对称图形，是中心对称图形，不符合题意；D、是轴对称图形，也是中心对称图形，不符合题意．故选：A．【点评】掌握好中心对称图形与轴对称图形的概念．轴对称图形的关键是寻找对称轴，图形两部分折叠后可重合，中心对称图形是要寻找对称中心，旋转180度后两部分重合．2．（3分）函数y＝+中自变量x的取值范围是（ ）A．x≤2B．x≤2且x≠1C．x＜2且x≠1D．x≠1【分析】根据二次根式的性质和分式的意义，被开方数大于等于0，分母不等于0，就可以求解．【解答】解：根据二次根式有意义，分式有意义得：2﹣x≥0且x﹣1≠0，解得：x≤2且x≠1．故选：B．【点评】本题考查函数自变量的取值范围，涉及的知识点为：分式有意义，分母不为0；二次根式的被开方数是非负数．3．（3分）如果点P（m，1+2m）在第二象限，那么m的取值范围是（ ）A．B．C．m＜0D．【分析】点在第二象限的条件是：横坐标是负数，纵坐标是正数，据此可得到一个关于m的不等式组，求解即可．【解答】解：∵点P（m，1+2m）在第二象限，∴，解得．故选：B．【点评】坐标平面被两条坐标轴分成了四个象限，每个象限内的点的坐标符号各有特点，该知识点是中考的常考点，常与不等式、方程结合起来求一些字母的取值范围，比如本题中求m的取值范围．4．（3分）已知是方程组的解，则a+b＝（ ）A．2B．﹣2C．4D．﹣4【分析】将代入方程组中的两个方程，得到两个关于未知系数的一元一次方程，解答即可．【解答】解：∵是方程组的解∴将代入①，得a+2＝﹣1，∴a＝﹣3．把代入②，得2﹣2b＝0，∴b＝1．∴a+b＝﹣3+1＝﹣2．故选：B．【点评】解答此题，需要对以下问题有一个深刻的认识：①使二元一次方程两边的值相等的两个未知数的值，叫做二元一次方程的解；②二元一次方程组的两个方程的公共解，叫做二元一次方程组的解．5．（3分）下列命题中的假命题是（ ）A．一组邻边相等的平行四边形是菱形B．一组邻边相等的矩形是正方形C．一组对边平行且相等的四边形是平行四边形D．一组对边相等且有一个角是直角的四边形是矩形【分析】要找出正确命题，可运用相关基础知识分析找出正确选项，也可以通过举反例排除不正确选项，从而得出正确选项．【解答】解：A、根据菱形的判定定理，正确；B、根据正方形和矩形的定义，正确；C、符合平行四边形的定义，正确；D、错误，可为不规则四边形．故选：D．【点评】本题考查菱形、矩形和平行四边形的判定与命题的真假区别．6．（3分）如图，点O是矩形ABCD的中心，E是AB上的点，沿CE折叠后，点B恰好与点O重合，若BC＝3，则折痕CE的长为（ ）A．B．C．D．6【分析】先根据图形翻折变换的性质得出BC＝OC，BE＝OE，∠B＝∠COE＝90°，∠BCE ＝∠ACE，求出AC＝2BC，求出∠BAC＝30°，求出∠BCE＝30°，解直角三角形求出CE 即可．【解答】解：∵△CEO是△CEB翻折而成，∴BC＝OC，BE＝OE，∠B＝∠COE＝90°，∠BCE＝∠ACE，∴EO⊥AC，∵O是矩形ABCD的中心，∴OE是AC的垂直平分线，AC＝2BC＝2×3＝6，∴∠CAB＝30°，∴∠BCA＝60°，∴∠BCE＝∠ACE＝30°，在Rt△BCE中，CE＝＝＝2，故选：A．【点评】本题考查了翻折变换，矩形的性质，直角三角形的性质，解直角三角形等知识点，能求出∠BAC＝30°是解此题的关键．7．（3分）如图，正方形ABCD的对角线AC，BD相交于点O，DE平分∠ODA交OA于点E，若AB＝4，则线段OE的长为（ ）A．B．4﹣2C．D．﹣2【分析】先过E作EH⊥AD于H，设OE＝x，则EH＝AH＝x，AE＝2﹣x，根据勾股定理可得Rt△AEH中，x2+x2＝（2﹣x）2，解方程即可得到线段OE的长．【解答】解：如图，过E作EH⊥AD于H，则△AEH是等腰直角三角形，∵AB＝4，△AOB是等腰直角三角形，∴AO＝AB×cos45°＝4×＝2，∵DE平分∠ODA，EO⊥DO，EH⊥DH，∴OE＝HE，设OE＝x，则EH＝AH＝x，AE＝2﹣x，∵Rt△AEH中，AH2+EH2＝AE2，∴x2+x2＝（2﹣x）2，解得x＝4﹣2（负值已舍去），∴线段OE的长为4﹣2．故选：B．【点评】此题考查正方形的性质，解决问题的关键是作辅助线构造直角三角形，运用勾股定理列方程进行计算．8．（3分）已知一次函数y＝kx+b（k≠0）图象过点（0，2），且与两坐标轴围成的三角形面积为2，则一次函数的解析式为（ ）A．y＝x+2B．y＝﹣x+2C．y＝x+2或y＝﹣x+2D．y＝﹣x+2或y＝x﹣2【分析】先求出一次函数y＝kx+b与x轴和y轴的交点，再利用三角形的面积公式得到关于k的方程，解方程即可求出k的值．【解答】解：∵一次函数y＝kx+b（k≠0）图象过点（0，2），∴b＝2，令y＝0，则x＝﹣，∵函数图象与两坐标轴围成的三角形面积为2，∴×2×|﹣|＝2，即||＝2，解得：k＝±1，则函数的解析式是y＝x+2或y＝﹣x+2．故选：C．【点评】本题考查一次函数图象上点的坐标特征和三角形的面积公式，有一定的综合性，注意点的坐标和线段长度的转化．9．（3分）济南市某储运部紧急调拨一批物资，调进物资共用4小时，调进物资2小时后开始调出物资（调进物资与调出物资的速度均保持不变）．储运部库存物资S（吨）与时间t （小时）之间的函数关系如图所示，这批物资从开始调进到全部调出需要的时间是（ ）A．4小时B．4.4小时C．4.8小时D．5小时【分析】依题意，根据函数图象可知，调进物资共用4小时，且速度保持不变，则4小时的时候已经调进结束，且共调进物资60吨．在2个小时内调出物资50吨，可计算出调出物资的速度以及剩下10吨的用时．【解答】解：解法一：调进物资共用4小时，且速度保持不变，则4小时的时候已经调进结束，且共调进物资60吨；货物还剩10吨，说明在2小时内，调出物资50吨，可得调出物资的速度为25吨/时，则剩下10吨用时：＝0.4小时，故共用时间4.4小时．解法二：由图中可以看出，2小时调进物资30吨，调进物资共用4小时，说明物资一共有60吨；2小时后，调进物资和调出物资同时进行，4小时时，物资调进完毕，仓库还剩10吨，说明调出速度为：（60﹣10）÷2吨，需要时间为：60÷25时，由此即可求出答案．物资一共有60吨，调出速度为：（60﹣10）÷2＝25吨，需要时间为：60÷25＝2.4（时）∴这批物资从开始调进到全部调出需要的时间是：2+2.4＝4.4小时．故选：B．【点评】此题考查学生的推理能力，关键是应算出调出物资需要的时间，再加上前面调进时的2小时即可．需注意调进需4小时，但2小时后调进物资和调出物资同时进行．10．（3分）如图，点P为定角∠AOB的平分线上的一个定点，且∠MPN与∠AOB互补，若∠MPN在绕点P旋转的过程中，其两边分别与OA、OB相交于M、N两点，则以下结论：（1）PM＝PN恒成立；（2）OM+ON的值不变；（3）四边形PMON的面积不变；（4）MN的长不变，其中正确的个数为（ ）A．4B．3C．2D．1【分析】如图作PE⊥OA于E，PF⊥OB于F．只要证明△POE≌△POF，△PEM≌△PFN，即可一一判断．【解答】解：如图作PE⊥OA于E，PF⊥OB于F．∵∠PEO＝∠PFO＝90°，∴∠EPF+∠AOB＝180°，∵∠MPN+∠AOB＝180°，∴∠EPF＝∠MPN，∴∠EPM＝∠FPN，∵OP平分∠AOB，PE⊥OA于E，PF⊥OB于F，∴PE＝PF，在△POE和△POF中，，∴△POE≌△POF，∴OE＝OF，在△PEM和△PFN中，，∴△PEM≌△PFN，∴EM＝NF，PM＝PN，故（1）正确，∴S△PEM＝S△PNF，∴S四边形PMON＝S四边形PEOF＝定值，故（3）正确，∵OM+ON＝OE+ME+OF﹣NF＝2OE＝定值，故（2）正确，在旋转过程中，△PMN是等腰三角形，形状是相似的，因为PM的长度是变化的，所以MN的长度是变化的，故（4）错误，故选：B．【点评】本题考查全等三角形的性质、角平分线的性质定理、四边形的面积等知识，解题的关键是学会添加常用辅助线，构造全等三角形解决问题，属于中考常考题型．二、填空题（每题4分，共16分）11．（4分）因式分解：（x2+4）2﹣16x2＝　（x+2）2（x﹣2）2　．【分析】首先利用平方差公式分解因式，进而结合完全平方公式分解得出答案．【解答】解：（x2+4）2﹣16x2＝x4+8x2+16﹣16x2＝（x2﹣4）2＝（x+2）2（x﹣2）2．故答案为：（x+2）2（x﹣2）2．【点评】此题主要考查了公式法分解因式，熟练应用乘法公式是解题关键．12．（4分）一次函数y1＝kx+b与y2＝x+a的图象如图，则kx+b＞x+a＞0的解集是　﹣3＜x ＜﹣2　．【分析】不等式组kx+b＞x+a＞0的解是一次函数y2＝x+a的图象y1＝kx+b下方且在x轴上方的部分对应的x的取值范围，据此即可解答．【解答】解：由图象得：不等式组kx+b＞x+a＞0的解集是﹣3＜x＜﹣2．故答案为：﹣3＜x＜﹣2．【点评】本题考查了一次函数的图象与一元一次不等式的关系：从函数的角度看，就是寻求使一次函数y＝kx+b的值大于（或小于）0的自变量x的取值范围；从函数图象的角度看，就是确定直线y＝kx+b在x轴上（或下）方部分所有的点的横坐标所构成的集合．13．（4分）在平行四边形ABCD中，AD＝13，∠BAD和∠ADC的角平分线分别交BC于E，F，且EF＝6，则平行四边形的周长是　45或33　【分析】分两种情况，首先判断BA＝BE＝CF＝CD，从而求出BF，得出BE的长，即可得出答案．【解答】解：分两种情况：①如图1所示：∵AE、DF分别是∠BAD、∠ADC的角平分线，∴∠BAE＝∠DAE，∠CDF＝∠ADF，∵四边形ABCD是平行四边形，∴AD∥BC，AB＝CD，BC＝AD＝13，∴∠DAE＝∠BEA，∠ADF＝∠CFD，∴∠BAE＝∠BEA，∠CFD＝∠CDF，∴BE＝BA＝CF＝CD，又∵AD＝13，EF＝6，∴BF＝（BC﹣EF）＝3.5，∴BE＝BF+EF＝3.5+6＝9.5，∴AB＝9.5．∴平行四边形ABCD的周长＝2（AD+AB）＝2（13+9.5）＝45；②如图2所示：同①得：BE＝BA＝CF＝CD，∴AB＝BE＝（BC﹣EF）＝（13﹣6）＝3.5，∴平行四边形ABCD的周长＝2（AD+AB）＝2（13+3.5）＝33；故答案为：45或33．【点评】本题考查了平行四边形的性质以及等腰三角形的判定，解答本题的关键是判断出BA＝BE＝CF＝CD．14．（4分）如图，在菱形ABCD中，AB＝4cm，∠ADC＝120°，点E、F同时由A、C两点出发，分别沿AB、CB方向向点B匀速移动（到点B为止），点E的速度为1cm/s，点F的速度为2cm/s，经过t秒△DEF为等边三角形，则t的值为 ．【分析】延长AB至M，使BM＝AE，连接FM，证出△DAE≌EMF，得到△BMF是等边三角形，再利用菱形的边长为4求出时间t的值．【解答】解：延长AB至M，使BM＝AE，连接FM，∵四边形ABCD是菱形，∠ADC＝120°∴AB＝AD，∠A＝60°，∵BM＝AE，∴AD＝ME，∵△DEF为等边三角形，∴∠DAE＝∠DFE＝60°，DE＝EF＝FD，∴∠MEF+∠DEA═120°，∠ADE+∠DEA＝180°﹣∠A＝120°，∴∠MEF＝∠ADE，∴在△DAE和△EMF中，∴△DAE≌EMF（SAS），∴AE＝MF，∠M＝∠A＝60°，又∵BM＝AE，∴△BMF是等边三角形，∴BF＝AE，∵AE＝t，CF＝2t，∴BC＝CF+BF＝2t+t＝3t，∵BC＝4，∴3t＝4，∴t＝故答案为：．或连接BD．根据SAS证明△ADE≌△BDF，得到AE＝BF，列出方程即可．【点评】本题主要考查了菱形的性质，全等三角形的判定与性质，等边三角形的性质等知识，解题的关键是运用三角形全等得出△BMF是等边三角形．三、解答题（共54分）：15．（15分）（1）计算（2）解不等式组，并写出不等式组的非负整数解．（3）解分式方程：＝+【分析】（1）原式利用零指数幂、负整数指数幂法则，平方差公式，以及绝对值的代数意义计算即可求出值；（2）分别求出不等式组中两不等式的解集，找出两解集的公共部分确定出不等式组的解集，进而求出非负整数解即可；（3）分式方程去分母转化为整式方程，求出整式方程的解得到x的值，经检验即可得到分式方程的解．【解答】解：（1）原式＝3﹣1﹣1++2﹣1＝+2；（2），由①得：x≤1，由②得：x＜4，则不等式组的解集为x≤1，即不等式组的非负整数解为0，1；（3）去分母得：x2﹣4x+4＝x2+4x+4+16，解得：x＝﹣2，经检验x＝﹣2是增根，分式方程无解．【点评】此题考查了解分式方程，熟练掌握运算法则是解本题的关键．16．（6分）计算：已知＝，求（﹣）÷（+x）的值．【分析】先将分式化简，再由＝，可得＝，整体代入即可．【解答】解：（﹣）÷（+x）＝÷＝﹣•＝﹣，∵＝，∴＝1﹣＝1﹣，∴﹣＝﹣，∴原式＝﹣．【点评】此题考查了分式的化简求值，熟练掌握运算法则是解本题的关键．17．（7分）对x，y定义一种新运算T，规定：T（x，y）＝（其中a，b均为非零常数），这里等式右边是通常的四则运算，例如：T（0，1）＝＝b，已知T （1，1）＝2.5，T（4，﹣2）＝4．（1）求a，b的值；（2）若关于m的不等式组恰好有2个整数解，求实数P的取值范围．【分析】（1）根据题中的新定义列出关于a与b的方程组，求出方程组的解即可得到a 与b的值；（2）利用题中的新定义化简已知不等式组，求出解集，根据关于m的不等式组恰好有2个整数解，确定p的范围即可．【解答】解：（1）根据题意得：，①+②得：3a＝9，即a＝3，把a＝3代入①得：b＝2，故a，b的值分别为3和2；（2）根据题意得：，由①得：m≤，由②得：m＞p﹣3，∴不等式组的解集为p﹣3＜m≤，∵不等式组恰好有2个整数解，即m＝0，1，∴﹣1≤p﹣3＜0，解得≤p＜2，即实数P的取值范围是≤p＜2．【点评】本题主要考查了解二元一次方程组以及解一元一次不等式组，理解题中的新定义，并熟练掌握一元一次不等式组的解法是解本题的关键．18．（8分）如图所示，已知△ABC的三个顶点的坐标分别为A（﹣2，3）、B（﹣6，0）、C （﹣1，0），（1）请直接写出点A关于原点O对称的点的坐标；（2）将△ABC绕坐标原点O逆时针旋转90°，求出A′点的坐标．（3）请直接写出：以A、B、C为顶点的平行四边形的第四个顶点D的坐标．【分析】（1）由关于原点O对称的点的坐标特点即可得出答案；（2）由旋转的性质即可得出答案；（3）分三种情况：①BC为对角线时；②AB为对角线时；③AC为对角线时；由平行四边形的性质即可得出答案．【解答】解：（1）∵A（﹣2，3），∴点A关于原点O对称的点的坐标为（2，﹣3）；（2）将△ABC绕坐标原点O逆时针旋转90°，如图1所示：A′点的坐标为（﹣3，﹣2）；（3）如图2所示：BC为对角线时，点D的坐标为（﹣5，﹣3）；AB为对角线时，点D的坐标为（﹣7，3）；AC为对角线时，点D的坐标为（3，3）；综上所述，以A、B、C为顶点的平行四边形的第四个顶点D的坐标为（﹣5，﹣3）或（﹣7，3）或（3，3）．【点评】本题考查了平行四边形的性质、旋转的性质、关于原点O对称的点的坐标特点、坐标与图形性质；熟练掌握平行四边形的性质和旋转的性质是解题的关键．19．（8分）京广高速铁路工程指挥部，要对某路段工程进行招标，接到了甲、乙两个工程队的投标书．从投标书中得知：甲队单独完成这项工程所需天数是乙队单独完成这项工程所需天数的；若由甲队先做10天，剩下的工程再由甲、乙两队合作30天完成．（1）求甲、乙两队单独完成这项工程各需多少天？（2）已知甲队每天的施工费用为8.4万元，乙队每天的施工费用为5.6万元．工程预算的施工费用为500万元．为缩短工期并高效完成工程，拟安排预算的施工费用是否够用？若不够用，需追加预算多少万元？请给出你的判断并说明理由．【分析】（1）设甲单独完成这项工程所需天数，表示出乙单独完成这项工程所需天数及各自的工作效率．根据工作量＝工作效率×工作时间列方程求解；（2）根据题意，甲乙合作工期最短，所以须求合作的时间，然后计算费用，作出判断．【解答】解：（1）设乙队单独完成这项工程需要x天，则甲队单独完成这项工程需要x天．根据题意，得．解得x＝90．经检验，x＝90是原方程的根．∴x＝×90＝60．答：甲、乙两队单独完成这项工程分别需60天和90天．（2）设甲、乙两队合作完成这项工程需要y天，则有．解得y＝36．需要施工费用：36×（8.4+5.6）＝504（万元）．∵504＞500．∴工程预算的施工费用不够用，需追加预算4万元．【点评】此题考查分式方程的应用，涉及方案决策问题，所以综合性较强．20．（10分）在菱形ABCD中，∠BAD＝60°．（1）如图1，点E为线段AB的中点，连接DE，CE，若AB＝4，求线段EC的长；（2）如图2，M为线段AC上一点（M不与A，C重合），以AM为边，构造如图所示等边三角形AMN，线段MN与AD交于点G，连接NC，DM，Q为线段NC的中点，连接DQ，MQ，求证：DM＝2DQ．【分析】（1）如图1，连接对角线BD，先证明△ABD是等边三角形，根据E是AB的中点，由等腰三角形三线合一得：DE⊥AB，利用勾股定理依次求DE和EC的长；（2）如图2，作辅助线，构建全等三角形，先证明△ADH是等边三角形，再由△AMN是等边三角形，得条件证明△ANH≌△AMD（SAS），则HN＝DM，根据DQ是△CHN的中位线，得HN＝2DQ，由等量代换可得结论．【解答】解：（1）如图1，连接BD，则BD平分∠ABC，∵四边形ABCD是菱形，∴AD∥BC，∴∠A+∠ABC＝180°，∵∠A＝60°，∴∠ABC＝120°，∴∠ABD＝∠ABC＝60°，∴△ABD是等边三角形，∴BD＝AD＝4，∵E是AB的中点，∴DE⊥AB，由勾股定理得：DE＝＝2，∵DC∥AB，∴∠EDC＝∠DEA＝90°，在Rt△DEC中，DC＝4，EC＝＝＝2；（2）如图2，延长CD至H，使CD＝DH，连接NH、AH，∵AD＝CD，∴AD＝DH，∵CD∥AB，∴∠HDA＝∠BAD＝60°，∴△ADH是等边三角形，∴AH＝AD，∠HAD＝60°，∵△AMN是等边三角形，∴AM＝AN，∠NAM＝60°，∴∠HAN+∠NAG＝∠NAG+∠DAM，∴∠HAN＝∠DAM，在△ANH和△AMD中，∵，∴△ANH≌△AMD（SAS），∴HN＝DM，∵D是CH的中点，Q是NC的中点，∴DQ是△CHN的中位线，∴HN＝2DQ，∴DM＝2DQ．【点评】本题考查了菱形的性质、三角形的中位线、三角形全等的性质和判定、等边三角形的性质和判定，本题证明△ANH≌△AMD是关键，并与三角形中位线相结合，解决问题；第二问有难度，注意辅助线的构建．一、填空题（每题4分，共20分）B卷（50分）21．（4分）已知1＜x＜2，，则的值是　2　．【分析】先求﹣）2的值，然后利用1＜x＜2得到为正数，从而的值．【解答】解：（﹣）2＝+x﹣1﹣2，而+x＝7，所以（﹣）2＝4，因为1＜x＜2，所以﹣＝2．故答案为2．【点评】本题考查了二次根式的混合运算：先把二次根式化为最简二次根式，然后合并同类二次根式即可．在二次根式的混合运算中，如能结合题目特点，灵活运用二次根式的性质，选择恰当的解题途径，往往能事半功倍．22．（4分）已知直线y＝x+（n为正整数）与坐标轴围成的三角形的面积为S n，则S1+S2+S3+…+S2012＝ ．【分析】令x＝0，y＝0分别求出与y轴、x轴的交点，然后利用三角形面积公式列式表示出S n，再利用拆项法整理求解即可．【解答】解：令x＝0，则y＝，令y＝0，则﹣x+＝0，解得x＝，所以，S n＝••＝（﹣），所以，S1+S2+S3+…+S2012＝（﹣+﹣+﹣+…+﹣）＝（﹣）＝．故答案为：．【点评】本题考查的是一次函数图象上点的坐标特点，表示出S n，再利用拆项法写成两个数的差是解题的关键，也是本题的难点．23．（4分）已知∠ABC＝60°，点D是其角平分线上一点，BD＝CD＝6，DE∥AB交BC 于点E．若在射线BA上存在点F，使S△DCF＝S△BDE，请写出相应的BF的长：BF＝　2或4　．【分析】根据菱形的判定和性质，等边三角形的判定和性质，分两种情形分别求解即可解决问题．【解答】解：作DF∥BC交AB于F．延长CD交AB于H．∵DF∥BE，DE∥BF，∴四边形DEBF是平行四边形，∴S△BDF＝S△BDE，S△BDF＝S△DFC，∴S△DFC＝S△BDE，∵∠ABC＝60°，BD平分∠ABC，∴∠ABD＝∠DBE＝30°，∵DF∥BE，∴∠FDB＝30°，∴∠FBD＝∠FDB＝30°，∴FB＝FD，∴四边形DEBF是菱形，∵BD＝CD＝6，∴∠DBC＝∠DCB＝30°，∵∠DEC＝∠ABC＝60°，∴∠CDE＝90°，∴DE＝CD•tan30°＝6×，∴BF＝DE＝2，∵DE∥AB，∴∠BHC＝∠EDC＝90°，∴CH⊥AB，作点F关于CH的对称点F′，连接DF′，易知S△DFC＝S△DF′C，在Rt△DFH中，FH＝HF′＝DF•sin30°＝，∴BF′＝4，综上所述，满足条件的BF的值为2或4．故答案为：2或4．【点评】考查了菱形的判定和性质，等边三角形的判定和性质等知识，解题的关键是学会添加常用辅助线，构造特殊四边形解决问题，属于中考压轴．24．（4分）如图，四边形ABCD中，∠A＝∠ABC＝90°，AD＝2，BC＝5，E是边CD的中点，连接BE并延长与AD的延长线相交于点F．若△BCD是等腰三角形，则四边形BDFC 的面积为　5或20　．【分析】首先证明四边形BDFC是平行四边形，则可分①BC＝BD时，利用勾股定理列式求出AB，然后利用平行四边形的面积公式列式计算即可得解；②BC＝CD时，过点C 作CG⊥AF于G，判断出四边形AGCB是矩形，再根据矩形的对边相等可得AG＝BC＝5，然后求出DG＝4，利用勾股定理列式求出CG，然后利用平行四边形的面积列式计算即可得解；③BD＝CD时，BC边上的中线应该与BC垂直，从而得到BC＝2AD＝4，矛盾．【解答】解：∵∠A＝∠ABC＝90°，∴BC∥AD，∴∠CBE＝∠DFE，在△BEC与△FED中，，∴△BEC≌△FED（AAS），∴BE＝FE，又∵E是边CD的中点，∴CE＝DE，∴四边形BDFC是平行四边形；∴①BC＝BD＝5时，由勾股定理得，AB＝＝＝，所以，四边形BDFC的面积＝5×＝5．②BC＝CD＝5时，如图，过点C作CG⊥AF于G，则四边形AGCB是矩形，所以，AG＝BC＝5，所以，DG＝AG﹣AD＝5﹣2＝3，由勾股定理得，CG＝＝＝4，所以，四边形BDFC的面积＝5×4＝20．③BD＝CD时，BC边上的中线应该与BC垂直，从而得到BC＝2AD＝4，矛盾，此时不成立；综上所述，四边形BDFC的面积是5或20．故答案为5或20．【点评】本题主要考查勾股定理的运算和等腰三角形的性质，解决本题的关键是正确认识到需要讨论，讨论等腰三角形的边应如何分类．25．（4分）如图1，把一张正方形纸片对折得到长方形ABCD，再沿∠ADC的平分线DE折叠，如图2，点C落在点C′处，最后按图3所示方式折叠，使点A落在DE的中点A′处，折痕是FG，若原正方形纸片的边长为9cm，则FG＝ cm．。

2017-2018学年下学期期中考试八年级英语试卷（满分：120分；考试时间： 120分钟）★友情提示：本卷满分 120 分，请同学们注意整洁和书写规范。

所有答案都必须填在答题卷相应的位置上，答在本试卷上一律无效。

听力部分（20分）I．A．单句理解听句子，从所给图中选出与所听到的句子情景相同（相近）图画。

（5分）II．B．听对话，根据所听到的内容，选择正确的答案。

（10分）第一节：听下面3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，选出最佳答案。

( )6. How long will the man have to wait for the next bus?A. 20 minutes.B. 15 minutes.C. 10 minutes.( )7. What’s John going to do?A. Stay at home and watch TVB. Go to the movies.C. Go out for supper.( )8. What color can make the man sad? A. Blue. B. Black C.Red第二节：听下面3段对话，每段对话后有二或三个小题，从题中所给的A、B、C三个选项中，选出最佳答案。

听第1段对话，回答9、10题。

( )9. Which train will the man take?A. The 8:20 pm train.B. The 9:15 am train.C. The 9:15 pm train. ( )10. How much does the man pay for the tickets in all?A. 60 yuan.B. 120 yuan.C.150 yuan.听第2段对话，回答11、12题。

( )11. What does the man like doing in New York?A. Going shopping.B. Visiting museums.C.Doing some sports. ( )12. How do they like the traffic in New York?A. Bad.B. Good.C. So-so.听第3段对话，回答13至15题。

2017-2018学年第二学期八年级英语第六单元提优卷一、单项选择(每小题1分，满分15分)( )1.It's excellent chance for people to learn the importance of team work.A. theB./C. aD. an( )2.—Would you like football this afternoon?—I'm afraid not. I'm not interested in football. Instead, I feel like swimming.A. to play; to goB. playing;goingC. to play;goingD. playing;to go ( )3. It is necessary us to help our friends out when they meet difficulties.A. toB. ofC. withD. for( )4.—Wow, an iPhone 8, what a big surprise!Thanks, darling!—It's your birthday present. But please read the carefully before you use it.A. informationB. instructionsC. invitationsD. instruments ( )5.—What kind of house do you like to live in, Tom?—We hope the new flat is to the ones in Seattle.A. similarB. differentC. interestingD. beautiful ( )6.He came and stopped to look at the exhibits .A. close; closelyB.closely;closeC. close;closeD. closely;closely ( )7.—I Tom for three days. Is he ill?—I'm afraid so. The doctor said he needed .A. didn't see;operatingB. haven't seen;an operationC. haven't seen; to be operatedD. hadn't seen;operating on( )8.You can never imagine what great difficulty I have your house.A.foundB.findingC.to findD. for finding ( )9.We are going to have a meeting this afternoon. I'll call Wendy to make sure .A. why to startB. when to startC. what to startD. which to start ( )10. That man was , but he could know what something was by feeling it.A. blindB. poorC. oldD. disabled ( )11.—Don't hope. Everything will be over soon.—Yes.We should learn to be brave when we are in trouble.A. turn upB. give upC. clean upD. take up( )12.It's very kind you to lend me your reusable shopping bags.A. ofB. forC. toD. with( )13.I don't know if it tomorrow. If it , I won't go.A. will rain; will rainB. rains; rainsC. rains;will rainD. will rain;rains ( )14.—Mario, your mobile phone is ringing.—Wait a minute. It's dangerous for us it while crossing the street.A. answeringB. to answerC. answerD. answered ( )15.—It's easy for five workers to push the broken van away.—Yes. .A. When the cat's away the mice will playB. Every dog has its dayC. Many hands make light workD. Don't put all your eggs in one basket二、完形填空(每小题1分，满分10分)Before I could turn 10, I had lost my parents. To 1 myself and my education, I had taken to delivering(递送) newspapers.I would get up every morning by 5 a.m. and walk five kilometers from Hydery to the newspaper office in Bazar. By 6 a. m., I would 2 50 copies of newspaper which must have weighed over five kilos. After delivering them, I would rush home—another three kilometers away—cook my breakfast, eat 3 and be off to school.One morning, I found a boy of my age at my doorstep. He introduced himself as Jimmy and said his 4 wanted to see me. I guessed they wished to subscribe to(订阅)the newspaper, so I followed him to his place nearby.Jimmy's mother opened the door. She served me a large plate of snacks and fruit salad, It was a rich breakfast, one that brought back 5 of the happy time with my parents. As I was about to leave, Jimmy's father, Mr Kader appeared with a new bicycle."This is for you!" he said, patting my shoulder."But I have no money!" I cried."Who is asking you to 6 this, my son?" he continued.It took me a few seconds to sense the 7 moment. I didn't even realize my tears were rolling down my face. Jimmy's mother held me closely. It was like 8 , as if my mother were there.Mr Kader said that my newspaper editor, Mr Brown, was a friend of his，and the editor told him my 9 .I bowed, thankfully, and left. This time, I didn't have to walk!For many years later, it was the 10 that changed my life. I also learned a lesson:Help should always be given according to people's needs. Never try to feed a person who is dying of thirst.( )1.A. enjoy B.control C. support D. encourage ( )2.A. collect B. make C. find D. read( )3.A. quietly B. carefully C. nervously D. quickly( )4.A. classmates B. parents C. neighbours D. teachers( )5.A. memories B. messages C. chances D. plans( )6 .A. pay for B. sell out C. give away D. pick up( )7.A. relaxing B. warm C. crazy D. interesting ( )8.A. luck B. hope C. life D. home( )9. A. decision B. secret C.story D. choice( )10.A. breakfast B. bicycle C. newspaper D. education三、阅读理解(每小题2分，满分24分)ALast December, students at Duluth Edison Charter Schoolin the US took part in a food drive(募捐).They were on theirway to collect food and other things for their local food bank.Since lots of people in the world are still suffering fromhunger, food banks are set up to help them. They collect andstore food and give it to people who cannot afford to buy it.Thereare thousands of food banks in the world. Some peopledonate(捐赠)food or money to them，and some work asvolunteers in the banks. The students from Duluth Edison Charter School had their own task-they had to collectwhat poor people needed for their holiday.Each grade received different requests(需求)from the food bank. Some needed to collect potatoes and vegetables from the farm. Some went to bakeries(面包房)to ask for cakes. And for seventh-grader Isabelle Sydow, she had to make gift boxes with her teammates. In her own words，the reason for donating is simple. "Not everybody has everything they need，and we think it will be nice to give everybody what they need for the holiday," said Sydow.Students collected a total of 1,409 items for the food bank and donated$262. "Thanks for your help," said Eric, the leader of the local food bank. "The poor people will have a nice Christmas just like everybody else."( )1 .What was the students' task?A. To visit the poor during the holiday.B. To work as volunteers in the food bank.C. To find out different requests of the poor.D. To collect what the poor needed for Christmas.( )2 .Sydow and her teammates were asked to .A. ask for cakesB.raise some moneyC. make gift boxesD. collect vegetablesBMany kids help parents to do chores in the house. Theymay take out the trash, walk the dog or sweep the floor. Inreturn, some kids get money or otherrewards from their parents, such as 20 minutes to playcomputer games.But some people do not think that kids should getrewards for doing chores. One of themis Jane Smith, aparenting educator and family coach. She believes if kids get rewards, they may think that work isn't worth doing unless you get something in return. For example, kids won't sweep the floor if they see it is dirty. But they will do it if their parents reward them for it."Every house is a team effort," Jane said. "A home is a living space for everyone in the family. It's important for kids to see that we all have a responsibility to keep our home clean."Other people hold different opinions. They believe that money or other rewards encourage kids to do more chores. It also teaches them real world lessons. They can learn about how we need to work to make money.Now, there are also apps that encourage kids to do chores. The apps give kids points and digital(电子的) gifts that can be used either online or in life. With the app ChoreMonster, kids earn digital points after doing chores. Kids can exchange their points for real rewards，such as time to play video games or a trip to the mall. "Our goal is to encourage kids so they can earn rewards," says Joe Black, the founder of ChoreMonster. "Kids need positive(积极的)power to make them do chores."( )3.If rewarded for doing chores, kids can learn to .A. take responsibilityB. use apps wellC. make money through workD. understand team effort( )4.What's the purpose of the apps mentioned in the passage?A. To give kids points and gifts.B. To encourage kids to do chores.C. To exchange points for real rewards.D. To give kids advice on doing chores.( )5.The passage mainly talks about .A. how to encourage kids to do choresB. what kind of chores kids should doC. if kids should do chores at homeD. whether kids should be rewarded for doing choresCA team is a group of people with a common goal. A school's football team has two goals. One goal is to win. That is what the team wants to do. The other goal is to build character. Character is what a person values, and how a person gets along with others. That is why schools have football teams. They want to help students develop good values.Each team member builds character. They learn to cooperate(合作).They learn to make good decisions. They work hard. They practice every day. They learn to follow the rules.Each team member has a position(位置).Each position is part of winning. No one player has the ability to win the game for the team. Only if the team works together does a team win. People often say, "There is no I in TEAM."Whether the team wins or loses，at the end of the game they congratulate the other team. That is called sportsmanship. While they fight to win during the game, it is just a game. They cannot be angry with the other team. If they are, they'll hear from their coach.makes sure the team reaches the school's goal. The coach cares about the whole team. The coach gives each player advice. When the team wins, everyone celebrates. And the coach is glad. But after the season is over, the coach is still happy. The coach gets to see the players as they go to school every day. The character they have built is part of their success in school, too.Some coaches say that if you go into a classroom at their school you'll be able to tell the players. It is not that they are bigger than the other students. It is the ones who are helping other students work. Teamwork is part of their lives.( )6. What's the purpose of building football teams at school according to this passage?A. To help students get good grades.B. To help students become leaders.C. To help students develop good values.D. To help students improve football skills.( )7. What does the underlined sentence "There is no I in TEAM." in Paragraph 3 mean?A. I never take part in the game.B. I am not a member of the team.C. A famous star is the key to success.D. Teamwork comes first during the game.( )8. Which of the following can be put in the blank in Paragraph 5?A. The captainB. The coachC. The headmasterD. The monitorDOnce upon a time all feelings went to an island for a vacation, and each was having a good time. Suddenly, a warning of a strong storm was announced, so all rushed to their boats. Yet, Love did not wish to run away quickly. There was so much to do. But as the clouds darkened, Love realized it was time to leave. But there were no boats to use. Love looked around with hope.Just then Richness was passing by Love in a large boat. Love shouted, "Richness, can you take me with you?" Richness answered, "No, I can't. There is a lot of gold and silver in my boat. There is no place here for you."Love decided to ask Vanity (虚荣)who was also passing by in a beautiful boat for help. But Vanity said with a cold voice, "No, I can't take you with me. My boat will get dirty with your muddy feet."Sorrow passed by after some time. Again，Love asked for help. But it was useless. "No, I can't take you with me. I am so sad. I want to be by myself."When Happiness passed by a few minutes later, Love again called for help. But Happiness was so happy that it hardly cared about anyone else.Love was growing worried and hopeless. Just then somebody called out, "Come, Love, I will take you with me." Love did not know who was so kind, but jumped onto the boat happily.After getting off the boat，Love met Knowledge. Love asked，"Knowledge, do you know who was so kind to give me a lift when no one else wished to help?"Knowledge smiled, "Oh, that was Time.""Time?" asked Love. "But why did Time help me?" Knowledge smiled with deep wisdom and answered, "Because only Time is able to understand how valuable(有价值的)Love is." ( )9. According to the passage, which one did not go to an island for a vacation?A. Love.B. Richness.C. Vanity.D. Knowledge. ( )10.Which word has the same meaning as "Sorrow"?A. Worry.B. Anger.C. Sadness.D. Smile.( )11.Other feelings passed by Love in their boats one by one. Which is the right order according to the passage?A. Richness→Vanity→Sorrow→Happiness→TimeB. Richness→Happiness→Sorrow→Vanity→TimeC. Time→Richness→Vanity→Sorrow→HappinessD. Richness→Happiness →V anity→Sorrow→Time( )12.What can we learn from the passage?A. When we are rich, we may pay more attention to love.B. All the feelings are important in our life except love.C. As time goes by, we can realize the importance of love.D. When we are in happiness and sorrow, we shouldn't remember love.四、词汇(每小题1分，满分10分)根据所给汉语注释或通过上下文写出单词。