江苏省南通市实验中学2015-2016学年七年级下学期期中考试英语试卷
2015-2016学年度第二学期期中考试初一年级英语试卷(本试卷共9 页，满分为150分，考试时间为120分钟)第Ⅰ卷（选择题共90分）一、听力二、单项选择（本题共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。
( ) 21. girl riding a bike is university student.A. a; anB. the; theC. the; aD. the;an( ) 22. Look at the photo. It’s from Canada and this is __________.A. the Eiffel TowerB. Red SquareC. the CN TowerD. Mount Fuji ( ) 23. Nantong is _________ east of China and _________ north of Suzhou.A. in the; 不填B. 不填; to theC. in the; on theD. to the; on the ( ) 24. —David, you left your English book on the desk?—It isn’t . I think it is .A. mine; Nick’sB. mine; NickC. my; Nick’sD. my; Nicks( ) 25. There’s with my computer. It works well.A. something wrongB. nothing wrongC. anything wrongD. everything wrong( ) 26. ---_________ is it to your home town from here?---Well, it takes three hours to get there by car.A. How soonB. How muchC. How longD. How far ( ) 27. ---How do you say 120,608 in English?---It’s____________.A. one hundred and twenty, six hundred and eightB. one hundred and twenty thousands, six hundred and eightC. one hundred and twenty thousand, six hundred and eightD. one hundred, twenty thousand, six hundred and eight( ) 28. —Excuse me, how can I get to the post office?—Go the bridge and turn left. Walk the museum, and you’ll see it.A. along; toB. across; pastC. past; toD. cross; past( ) 29. --- Hello, ?--- This is Peter. May I speak to Amy?A. who’re youB. who’s that callingC. are you Tom GreenD. who is this speaking( ) 30. Children love pandas, but sometimes they are ____________. Don’t stand near them.A. friendlyB. lovelyC. dangerousD. quiet( ) 31. —Why are you so happy, Jim?—Because there a basketball match between my favourite teams today.A. is going to haveB. are going to beC. is going to beD. are going to have( ) 32. More than ________ the students watch the film in the school hall. It is so interesting.A. two thousandB. two thousandsC. two thousand ofD. thousands of( ) 33. —enjoy Beijing opera with us?— Good idea.A. Why don’tB. What aboutC. Why not youD. Why not ( ) 34. —your hometown like?—It’ s a good place .A. How’s; to liveB. How does; livingC. What’s; to liveD. What does; living ( ) 35. ---Would you like to have lunch with me?---________, but I’m afraid I don’t have time.A. Yes, I’d like some.B. Thank you.C. Yes, please.D. No, I’d love to.三、完形填空（本题共15小题；每小题1分，满分15分）请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Mr. Clarke works in a middle school. He likes reading and often 36 some books from the library. He 37 to the radio every morning and reads 38 after supper. So he knows much and teaches well. His 39 worship(崇拜) him very much. Mike, Mr. Clarke’s little son, is only nine. He 40 likes reading books. And he often asks his father some questions. Mr. Clarke always thinks he's not 41 to understand him and just gives the 42 to the easy questions. Of course the boy is not satisfied with(对…满意) it. One day Mike reads something about the electric lights (电灯) and is 43 _ it. 44 his father tells him to do some housework, he says to him “you should answer my questions first.” He asks him 45 questions, and his father answers all. Then his father says proudly, "Fathers always know 46 than sons!" The boy thinks for a while and says, " 47 " "Oh? Why?" Mr. Clarke is surprised. Mike does n’t answer48 asks, "Who invented(发明) the electric lights?" 49 "answers Mr. Clarke. “Why didn't his father invent them, then?" Looking at his son, Mr. Clarke doesn't know 50 to answer it!( ) 36. A. finds B. lends C. borrows D. buys( ) 37. A. hears B. listens C. says D. reads( ) 38. A. messages B. letters C. stories D. newspapers ( ) 39. A. teachers B. parents C. students D. classmates ( ) 40. A. also B. never C. even D. only( ) 41. A. enough old B. old enough C. clever enough D. enough clever ( ) 42. A. news B. answers C. paper D. books( ) 43. A. worried about B. interested in C. afraid of D. angry with ( ) 44. A. When B. Before C. If D. Because ( ) 45. A. few B. little C. a few D. a little( ) 46. A. more B. most C. less D. least( ) 47. A. I don’t think so B. I think so C. I’m sure D. I don’t know ( ) 48. A. and B. or C. but D. so( ) 49. A. Thomas Brown B. Allan Smith C. Thomas Edison D. Ron Jenkins ( ) 50. A. how B. where C. which D. what四、阅读理解（本题共15小题；每小题2分，满分30分）请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
AOne day, a dog meets his friend, a little sheep. The sheep is sitting by the river. He is looking at himself in the water. He is crying. The dog asks,” What’s wrong?”“Look at me!” the sheep says sadly. Then he cries more loudly. “People cut my wool. They cut my wool every spring because I am a sheep.”“Think about it carefully! Your wool can make people warm,” the dog says. “People want to make coats, hats, and gloves with it. You can help them!”“But I need to be warm, too. I look so funny without my coat,” the sheep answers.“Your wool will start very soon,” the dog says. “In summer you will like being cool.”“I guess you are right,” the sheep says. “Maybe it’s just my first haircut.”51. The dog meets the sheep by a________.A. lakeB. riverC. treeD. house52. The sheep cries because _____________.A. the dog doesn’t play with him.B. he is looking at himself in the water.C. he doesn’t like what he looks like without wool.D. he needs to keep warm with his wool.53. People often cut wool in_______________.A. springB. summerC. autumnD. winter54. This is the ____________ haircut for the sheep.A. firstB. secondC. thirdD. fourthBJames comes to a restaurant near his home to have breakfast. He sits at a table and the waiter comes up and says, “Can I take your order, James?”“But you don’t show your menu to me,Mr. Hunt,” sa ys the boy.“Oh, sorry! I forget it. Here it is.”James takes out his wallet and finds there is only 6.00 dollars in it.“Well,” s ays Mr. Hunt.” What about a hamburger, a pizza, two eggs and a glass of coke?”“Oh,no,” s ays the boy.” I’ll buy a picture-book this afternoon. It is 1.50 dollars.”“I see,” s ays the waiter. And then he brings the boy a nice breakfast.55. Which of the following costs the most money?A. A sandwichB. A hamburgerC. A pizzaD. A cake56. James can only pay ______ dollars at most for his breakfast.A. ＄6.50B. ＄4.50C. ＄3.50D. ＄7.5057. At last James has ______ for his breakfast.A. two eggs, a hamburger, a cake and a glass of coffeeB. two eggs, a pizza, a cake and a glass of coffeeC. two eggs, a hamburger, a cake and a glass of cokeD. one egg, a pizza, a sandwich and a glass of coffeeCSkin—diving ( 潜水运动) is a new sport today . This sport can take you to a wonderful world . It’s like to visit the moon . When you’re under the water, it’s easy for you to climb big rocks ( 岩石) because you’re not heavy.Here, under the water , everything is blue and green . During the day , there’s enough light . And you can see a lot of fish swimming around you. You can catch them with your hands. To catch fish is of the most interesting parts of this sport .When you have tanks ( 罐) of air on your back , you can stay in deep water for a long time . But you must be careful when you dive in deep water .58. Skin—diving well take you to ___________ .A. the moonB. a new worldC. riversD. the earth59. You can climb big rocks easily under the water because __________.A. you’re strong enoughB. you’re tall enoughC. you’re not heavier than on landD. you’re healthy enough60. With a tank of air on your back, you can __________ .A.. not move any moreB. stay under water for a long timeC. catch fish very easilyD. can only stay in deep water61. Which is wrong ?A. Skin—diving is a new sport.B. Skin—diving is very interesting.C. In the day, there’s no light.D. You can catch fish with your hands when you are skin—diving.DWhen people are dirty, they take a bath or a shower. Animals don't have soap(肥皂), but they do keep themselves clean. Many animals with hair, such as dogs and cats, keep themselves clean by licking (舔)their hair. They also use their teeth to pull out small dirty things from their hair. When they lick their hair, it is almost as if they are using a wet brush to clean themselves.Birds take baths to stay clean. First they walk through water that is not deep. Next they beat （拍打) their wings to dry themselves. Birds also take sand baths（沙浴）on the ground. It is thought that they do this to drive away parasites(寄生虫).Even fish need cleaning. Fish have very little parasites that live in their mouths. Some fish live by eating these parasites off other fish. Such fish are called "cleaner fish". Larger fish will open their mouths so that the cleaner fish can get in to clean.Some animals that live in groups clean each other, such as monkeys. They often clean one another. One monkey may clean an area that the other monkey can't reach. How interesting it is!62. One way that birds keep clean is to __________.A. open their mouthsB. take sand bathsC. beat their wingsD. clean each other63. According to the third paragraph, all the following are true EXCEPT（除了） _______.A. fish need cleaningB. some fish are cleaner fishC. some parasites live in the fish's mouths.D. larger fish open their mouths to eat cleaner fish64. You may probably read this passage in a _________.A. weather reportB. school reportC. science bookD. history book65. The best title of the passage is _________ .A. Animals Keeping CleanB. Different AnimalsC. Driving Away ParasitesD. Monkeys Living in Groups第Ⅱ卷（非选择题共60分）五、词汇（本题共15小题；每小题1分，满分15分）A．请根据括号中的中文提示、英文释义或句意，写出句中所缺单词，使句子通顺。
人教版七年级下册英语期中考试试题
平河中学2015---2016学年度下学期期中考试卷七年级英语（考试时间：120分钟试卷总分100分）第一部分听力（共四节，满分20分）第一节听句子，选出与所听内容相符的图画句子。
注意听两遍。
（5分）( )1.A B C( )2.A B C( )3.A B C( )4.A B C( )5.A B C第二节听句子，选择最佳应答语。
注意听两遍。
（5分）( )6. A. I can play the guitar. B. Yes, I can. C. You’re right. ( )7. A. Good idea. B. I like tigers. C. I’d love to.( )8. A. No, I’m not. B. It takes about ten minutes. C. Sorry, I have to do my homework. ( )9. A. By bike. B. About five kilometers. C. I don’t know.( )10. A. by bus B. train. C. car.第三节听对话选择最佳答案。
注意听两遍。
（5分）( )11. A. in the schoolbag. B. under the chair. C. on the desk.( )12.A.math. B. Chinese. C. music.( )13.A. under the desk. B. on the bed. C. in the desk.( )14.A .apples B. bananas C. strawberries( )15.A. chicken. B. hamburger C. beef第四节听短文，根据短文内容回答问题。
注意听三遍（5分）( )16. How old is Eric?A. 13.B. 10.C. 20.( )17.Is his father a musician?A. Yes, he isB. No, he isC. Yes, she is( )18. Is his sister a good student?A. Yes, she is.B. a teacher.C. No, she isn’t.( )19.What is the dog’s name?A. CocoB. MimiC. Bob( )20. What is his favorite sports?A. ping-pong.B. volleyballC. basketball第二部分英语知识运用（共二节，满分30分）第一节词语释义，选出与句子划线部分意思最相近的解释，并把所选答案的字母代号填入答题卷相应位置内。
2015-2016学年江苏大丰实验初级中学七年级上学期期中英语试卷
2015-2016学年江苏大丰实验初级中学七年级上学期期中英语试卷一、单选题1. There is umbrella in Art room .A．an , an B．a , the C．a , an D．an , the2. ______ some food and fruit on the table. Would you like ________?A．There are, some B．There is, someC．There are, any D．There is, any3. ---What can I do for you? ---I’d like two ____.A．box of apple B．boxes of applesC．boxes of apple D．box of apples4. My father _______ the housework at the weekend.A．doesn’t B．doC．doesn’t do D．don’t do5. ---- Do you get up early ________ Sunday morning?---- No, I get up _______ about eight.A ．on, at C ．in, at6. ---You look very beautiful. --- _________.A ．That’s right B ．No, I don’t look beautiful C ．That’s all rightD ．Thanks7. He is in ___________.A ．Class two, Grade seven B ．class3, grade7C ．Three Class, Seven GradeD ．Class Two, Grade Seven8. ---- ______ Lucy come from American?---- No. She _____ from England.A ．Is; doesn’t B ．Does; is C ．Does; comeD ．Is; comes9. My sister_______ with her family_______ Shanghai now.A ．live, on B ．live, in C ．lives, inD ．lives, on10. I am good at_______ ball games and .A ．playing, swimming B ．playing, swim C ．play, swimD ．playing, swimsD ．at, atB ．on, on 2015-2016学年江苏⼤丰实验初级中学七年级上学期期中英语试卷11. Every morning I go to school ______________ . And in the afternoon I walk back home, too.A．by bike B．on foot C．by car D．by bus12. ----Can you get some paper for me, please?---- __________ I can’t hear you well here.A．Of course B．Really?C．Please don’t D．Pardon?13. The girl doesn’t like ___________ a red blouse. She is ___________ a blue one now.A．put on; wear B．wear; put C．putting on; wearing D．wearing; putting on14. -----What are those two men in brown? ----- They __________ teachers.A．are both B．both are C．are all D．all are15. ----When ________ the shopping mall _________? ----From 8a.m to 10:00p.m.A．is; open B．does; open C．is; opens D．do; open二、完型填空16. 完形填空How are you, Lisa? I’m writing a letter____you in my school. It’s a big middle____. I’m in a big class. There’re fifty students in my class. There are about t hree hundred teachers in my school. My English teacher____Mr. Green.____is a good teacher.We go to school____Monday to Friday. There are four classes in the morning and two in the afternoon. We play games____four o’clock on Friday after clas s.I have many friends at school. One of them is an American. She can____English and Chinese. The other friends____Chinese. I like to play____them. We of ten____basketball together. That’s my favorite game.【小题1】A．for B．to C．with D．from【小题2】A．school B．class C．classroom D．office【小题3】A．be B．are C．am D．is【小题4】A．Her B．He C．She D．Him【小题5】A．from B．for C．in D．on【小题6】A．in B．on C．at D．about【小题7】A．tell B．talk C．speak D．in【小题8】A．are all B．is all C．all D．all is【小题9】A．for B．and C．at D．with【小题10】A．play B．playing C．plays D．are play三、阅读单选17. This term we have a new teacher of English. His name is Mr. Peterson. He is an Australian. He is not tall and he is thin. He has a round face and small bl ue eyes. He wears glasses and they make him look smart. He has brown hair.Mr. Peterson is hard-working (勤劳的）. In class, he has many good ideas to make the class very interesting. We all like his class. After class, he alwaysenc ouragesus to speak English. Sometimes, he plays games with us. He is very strong and he can play basketball and football very well. He is good at sports. S ometimes he plays table tennis with us, but he doesn’t play it very well.Mr. Peterson loves living in China very much. He enjoys lots of things in China. He really loves eating Chinese food. He loves traveling(旅游）in China to o. He is going to visit Xi’an next month.【小题1】What does Mr. Peterson do?A．A doctor B．A teacher C．A farmer D．A worker【小题2】We cannot use _________ to describe（描述）Mr. Peterson.A．tall B．thin C．smart D．hard-working【小题3】How many ball games is Mr. Peterson good at?A．4B．3C．2D．1【小题4】The underlined（划线）word “encourage” means __________ in Chinese.A．阻止B．嘲笑C．逼迫D．鼓励【小题5】Which of the following is NOT true（正确）?A．Mr. Peterson is a very good English teacher.B．Mr. Peterson enjoys playing computer games.C．Mr. Peterson is good at football.D．Mr. Peterson enjoys his life in China.18. A woman has some trouble(患病) with her eyes, so she goes to see the doctor. He is a new doctor and doesn’t know her, so he asks some questions and o ne of them is, “How old are you?”A ．headB ．eyesC ．earsD ．mouth【小题2】The new doctor wants to know the woman’s __________.A ．QQ numberB ．hobbiesC ．nameD ．age【小题3】The woman can’t remember(记得) _______ age.A ．the doctor’s B ． her husband’s C ．herD ．her son’s【小题4】The woman is _________ years old now.A ．18B ．30C ．36D ．48【小题5】The woman is ______ years younger than （比…..年轻）her husband.A ．12B ．18C ．20D ．2419.【小题1】Something is wrong with the woman’s ___________.woman’s age now?婚), I am eighteen years old, and my husband is thirty. Now my husband is sixty. And that is twice(两倍) thirty, right?” So boys and girls, do you know the The woman says, “I don’t know, doctor, but let me think about it.” She thinks for a few minutes and then says, “Yes, I know now, doctor! When I marry(结【小题1】Tom is a 12-year-old boy. If he has a headache, he should take __________ a day.A ．tablet B．1 tablet C．2 tablets D．3 tablets【小题2】The Library closes at __________on Friday.A．5:00 p.m.B．9:00 a.m.C．4:00 p.m.D．12:00 a.m.【小题3】Lin and his father want to go to the Sunshine Zoo, they should pay __________.A．$ 15B．$ 30C．$ 45D．$ 10【小题4】We can borrow Children Books .A．on the first floor B．on the 2nd floorC．on the 3rd floor D．on the 4th floor【小题5】We can go to the Sunshine Zoo .A．by car B．by bikeC．by bus D．by train20. Hello. My name is Liang Bin and I’m 13 year sold. I come from Wuhan. In the morning I get up at half past six, and then I run near my home. At twenty past seven, I have breakfast with my parents. Usually I have eggs and milk. Sometimes I have bread and fruit juice. but I don’t eat meat. I go to school at tw enty to eight. My favourite subject is English and I like talking with my friends in English.Hi , I’m Zhao Li and I’m 13 years old. I’m from Xi’an and I’m a student in Grade 7. There are four people in my family and my sister and I share the same r oom. Every morning my sister and I get up at half past six, and then we read our Chinese or English books after we walk near my home for twenty minutes. At half past seven, we go to school. We are in the same school but we are not in the same class. I’m in Class 1 and my sister is in Class 2. There is a black co mputer in our room. We do our homework and talk with our friends on it.【小题1】What is Liang Bin’s favourite subject ?A．English B．HistoryC．Geography D．Maths【小题2】Zhao Li _________ on the computer in her room.A．Plays games B．reads booksC．talks with friends D．draw pictures.21. In a chatting room on the Internet, some children are talking about what they like to do at school.Flying fish: I think music is my favourite. I like listening to many beautiful English songs. I need to____after a day’s work. So I often listen to my favourite music after supper.Singing Bird: I like music, too. But I only listen to Chinese songs. I also like drawing. Maybe I can be a great artist when I grow up. I also like reading. Rea ding makes me clever.Jumping Tiger: I don’t like music or drawing. They are a waste (浪费) of time, I think. I am a good basketball player. I can help our school team win. Don’t四、填空you think it’s cool?Running football: I am not a good basketball player. But I play football well. Playing football makes me strong. I feel great when I am on the football field. I spend thirty minutes a day playing football.Swimming cat: I am not like many other boys, I don’t like sports very much. I just think reading is my favourite. I can learn a lot from books. I spend an hou r reading books every day.【小题1】The underlined word “relax” means “___________” in the passage.A ．work harder B ．do housework C ．have a restD ．have supper【小题2】What does Jumping Tiger think is cool?A ．Music.B ．Basketball.C ．FootballD ．Drawing【小题3】Who only likes reading books ?A ．Flying fish B ．Singing Bird C ．Swimming catD ．Running football22. 任务型阅读请阅读短文，并根据短文内容完成后面的表格。
江苏省南通市2015-2016学年七年级数学下册期中测试题
江苏省南通市2015-2016学年七年级数学下学期期中测试2015-2016学年度（下）七年级期中测试卷数 学 参考答案一、选择题（本大题共10小题，每小题2分，共20分）1．B 2．D 3．A 4．B 5．C6．D 7．A 8．D 9．A 10．C二、填空题（本大题共8小题，每小题2分，共16分）11．3 12．072<-b 13．3 14．四 15．50016．（－3，4） 17．122- 18．32<x三、解答题（本大题共10小题，共64分）19．解（1）2133-+-= 2分 21-= 3分（2）21475.01--+-= 2分411-= 3分20．解：（1）由53=-y x ①，得53+=x y ③，代入1525=+y x ② 得1125=x 2分 把1125=x 代入53+=x y ③得1120=y 3分 解得，⎪⎪⎩⎪⎪⎨⎧==11201125y x 4分（2）原方程组整理得：⎩⎨⎧-=--=-8512115y x y x 2分 解得，⎩⎨⎧==22y x 4分21．解：去分母得：2924---x x ≤1 2分解得，x ≥2- 4分解集在数轴上表示正确 5分22．解：由方程组解得1-=+k y x 3分由y x +≤1，得1-k ≤1，解得k ≤2 5分23．解：由12-a ≥0，12-a ≤0得21=a 2分 所以41=b 3分241211133=⨯=ab 5分24．解：（1）画图正确 2分证明：（2）∵EF ⊥AC ，∴∠EFC =90°，∵BD ⊥AC ，∴∠BDC =90° ∴∠EFC =∠BDC ，∴BD ∥EF ，∴∠DBC =∠FEC 4分∵DH ∥BC ，∴∠BDH =∠DBC ，∴∠BDH =∠CEF 5分25．解：（1）A 1（5，1），B 1（3，－4） 2分（2）画图正确 4分（3）△A 1B 1C 1的面积：8 6分26．解：由不等式0312>++x x ，解得，52->x 1分 由不等式a x a x 3)1(4453++>++，解得，a x 2<3分 ∵不等式组恰有三个整数解，∴a x 252<<- 4分∴a 22<≤3，即实数a 的取值范围是：a <1≤23 6分27．解：（1）设每个篮球的销售利润是x 元，每个排球的销售利润是y 元．根据题意可得⎩⎨⎧=+=+650201035597y x y x 2分解得，⎩⎨⎧==2025y x 3分 答：每个篮球的销售利润是25元，每个排球的销售利润是20元． 4分（2）设篮球购进m 个，则排球购进（100－m ）个 根据题意可得⎪⎩⎪⎨⎧-≥≤-+)100(2117400100160200m m m m ）（ 6分 解得，3100≤m ≤35 7分 因为m 是正整数，所以m =34或m =35则100－m =66或者100－m =65所以一共有两种进货方案：方案一：当篮球的数量为34个时，排球的数量为66个，方案二：当篮球的数量为35个时，排球的数量为65个． 8分28．解：（1）∵a 没有平方根，∴0<a ，∴0>-a∴点A （a ，－a ）在第二象限 2分（2）由方程组⎩⎨⎧-=+-=++42823c b a c b a ，用a 表示b ，c 得4+-=a b ，a c -= 再利用点A 到y 轴的距离是点B 到y 轴距离的3倍得43+-=-a a 4分可以分两种情况分析：①)4(3+-=-a a解之，得6=a ，所以2-=b ，6-=c ； ②)4(3+--=-a a解之，得3=a ，所以1=b ，3-=c ；综上，B （－2，－6）或B （1，－3） 6分（3）利用A （a ，－a ）和B （4+-a ，a -）， 可以判断线段AB 平行于x 轴．由点D 的坐标（2，－4）， △OAB 的面积是△DAB 面积的2倍， 可以判断点A 和点B 在x 轴的下方，则0>a 21AB ·212⨯=a AB · 4-a 8分 解得，38=a 或8=a所以，B （34，38-）或B （4-，8-） 10分沁园春·雪 <毛泽东>北国风光，千里冰封，万里雪飘。
2015-2016学年泽林牛津版七年级下Unit1单元测试卷含答案
江苏省南京市2015-2016学年七年级下英语第一单元测试卷班级姓名一、选择题( )1._________ the students will go to the isl and for the picnic.A. Two hundreds ofB. Two hundredC. Two hundred ofD. Hundreds of ( ) 2. Mary has ______ bedroom in the new flat.A. she’sB. her’sC. her ownD. her own’s( ) 3. The teacher asked those boys ______ so much noise.A. do not makeB. not makeC. not makingD. not to make( ) 4. They are reading ______lesson on page _______.A. twentieth, twentyB. the twentieth, twentiethC. the twentieth, twentyD. twenty, twentieth( ) 5. That tennis ball is one of ___________.A. Jane fatherB. Jane’s fatherC. Jane fathers’D. Jane’s father’s ( )6．They arrived__________ London_________ the morning of July 1．A．in，in B．on，in C．in，on D．at．on ( )7．—What do you usually have_________ breakfast?—A bag of milk and two eggs．A．by B．for C．at D．with( )8．Do you share a bedroom__________ your sister?A．with B．for C．of D．at( )9．Welcome_________ to visit our school．A．you B．your C．yours D．／( )10．There are________ in our school library．A．a lot books B．a lot of books C．lots books D．lots of book ( )11．That music sounds________．I want to listen to it again．A．well B．good C．badly D．bad( )12．I like_______ card with_________ apple on it．A．the，the B．the，a C．a，the D．the．an ( )13．Neil will send________．A．a video for Simon B．Simon to a videoC．a video to Simon D．Simon for a video( )14．Your bike is different__________．A．from my B．from mine C．of me D．of mine ( )15．I live__________ a small room__________ my parents．A．on，in B．on，with C．in，with D．with．with ( )16．Nancy’s sister doesn’t__________ bedroom．A．has her own B．have her ownC．have her own’s D．has her own’s( )17．Look! The boy ran_________ the classroom__________ a bird in his hand．A．in，has B．into，with C．into，has D．in．with( )18．The girl came back_________ her mother was cooking．A．so B．while C．and D．but( )19．Stephen_________ on the bunk bed while Neil________ in the kitchen．A．is lying，is siting B．lies，is sittingC．is lieing，is siting D．is lying，is sitting( )20．He has_________ books and he reads__________．A．a lot of，a lot B．a lot．lotC．lots of，lot of D．a lot of．a lot of二、完型填空We go to many places every day. 1 do you usually travel(旅行)? Do you usually walk or ride bikes?In a modern city, there are many 2 for you to choose when you go travelling. If you are in a hurry, you can take a 3 . Taxis don't 4 to stop at the bus stop. And the driver can take you to any 5 you want to go. 6 , travelling by taxi costs much money. So you can also choose to take the underground. It is much faster than buses. You don't have to 7 a lot if you travel by underground. When you are not busy, you can take a bus, then you can also 8 the scenery(风景) of the city on it.If you want to 9 , travelling 10 foot or by bike may be good for you. Walking can make you healthy.Today, many people have cars. But do you think it is a good thing to have too many cars in the street?( )1. A .Why B. How C. When D. Where( )2. A. roads B.traffic C. places D. ways( )3. A. bus B. car C. plane D. taxi( )4. A .want B. need C. like D. hope( )5. A. station B. bus stop C. place D. office( )6. A. However B. And C. For example D. Because( )7. A. cost B. take C. spend D. buy( )8. A. enjoy B. talk about C. think of D. like( )9. A. work B. study C. be busy D. exercise( )10. A. with . B. on C. by D. in三、阅读理解AHello, everyone! Welcome to Suqian. This is a new city in the north ofJiangsu. There are many places of interest to visit here. You can stay in theStar International (星辰国际) Hotel, a 5-star hotel. It was in use in 2011and is one of the best hotels in Suqian. It is near Luoma Lake on YulanRoad. The hotel is close to Suqian Horticultural Park (园博园), withSantai Mountain (三台山) to the east and Luoma Lake to the west. LuomaLake is one of the four largest freshwater lakes in Jiangsu. The hotel is 20 minutes’ walk from the lakeside and 15 minutes’ drive from the city centre. No. 102 and No. 105 buses can take you there.The hotel has free Wifi, and each room has a computer, a TV set and a telephone. Hot water is offered (供应) 24 hours. There is a shopping center which is open from 9 a.m. to 22:00 p.m. The coffee bar is open from 10:00 am to 23:00 pm. There is a free swimming pool inside. The hotel also has a KTV, a SPA, a gym, chess and cards rooms and so on. You can enjoy yourselves there. Hope that you will have a great time during your stay in Suqian.( )1. The passage mainly tells something about ______.A. a lakeB. a parkC. a hotelD. a mountain( )2. There is ______ in each room in the Star International Hotel.A. a swimming poolB. a computer, a TV set and a telephoneC. A computer and a clockD. a TV set and a picture( )3. What’s the meaning of the underlined(划线的)word “free” in the second paragraph ?A. 自由的B. 免费的C.空闲的D. 松散的BDifferent countries have different ideas about manners (礼仪). In America “table manners ” are important. How do you show good table manners in America? Here are some tips.Noises at tableIt is never a good idea to make a noise or burp (打嗝) at table. American people think this is not polite. If people burp, they always say, “Excuse me.”When to eat with your fingersAmerican people don’t use chopsticks (筷子) when they are eating. They use forks and knives. Sometimes they use their fingers (手指) to eat things. There are some foods that you can eat with your fingers. They are sandwiches, pizza, hamburgers and fruit.Your mouthIt’s not polite to talk with food in your mouth or eat with your mouth open.How much to eatIt’s good manners to eat all the food on your plate. This shows you like the food. It’s always polite to say the food is nice, even when it’s not good at all.( )4.What do people in America say when they burp?A. Excuse me.B. It’s OK.C. Thank you.D. All right.( )5.What do American people use their fingers to eat?A. Pork.B. Vegetables.C. Beef.D. Hamburgers.( )6.Which is good manners according to (根据) the passage?A. Burping at table.B. Saying the food is nice.C. Eating with your mouth open.D. Eating noodles with your fingers.( )7.The topic of this passage is ______ in America.A. good mannersB. how to eatC. good table mannersD. school lifeCWhen July comes, children know they’ll have the final exams and the school year will end soon. Boys and girls will have a nearly two months’ holiday, and they’ll leave school by train or by car to return home to see their fathers and mothers.The summer holiday is the best time of the year for most students. The weather is good, so they can spend most of their time playing outside .If one lives in the country, he can go on a trip into the woods or in the fields. If one lives in a big city, he can go to a park to play.The best place for a summer holiday is the seaside. Some children are lucky enough to live near the sea. But for the others who do not, if they have the chance to stay at one of the big seaside towns for a week or two, they will talk about it all the following school year.Now, what makes children like the seaside so much? I think it is the sand, the sea and the sun, not anything else. Of course, there are lots of new things to see, nice things to eat and interesting things to do. But the feeling of the sand under their feet, the salt water on their skin, and the warm sun on their backs make them happier.( )8. Every year, school children have the final exams in ____, and the exam means the school year will end.A. MayB. JanuaryC. JulyD. December( )9. According to the passage, if a child comes from a big city, he can often ____ in the summer holidays.A. stay at homeB. go on a trip to the woodsC. go on a trip in the fieldsD. go to a park to play( )10. It’s the best way for children to go to the ____ to spend their summer holiday s.[来源:A. parkB. seasideC. cityD. country( )11. ____ make children like the seaside so much?A. The beautiful parksB. The new thingsC. The sand, the sea and the sunD. The people near the seaDMany expressions in America，as in other countries，come from the names of people．“John Hancock”is the best known example．Hancock was a rich man．He helped the patriots(爱国者)in the American Revolution(革命) and became a head in the war(战争)against Britain．He was one of the first men to sign the Declaration of Independence(独立宣言)．Yet he is remembered best for his large signature(签名)．The story is told that when Hancock sat down to sign the Declaration of Independence．he said that he would write his signature large enough for John Bull(英国人的绰号)to read without his glasses．John Bull means England，as Uncle Sam means the United States．Hancock’s signature on the Declaration was written two times larger than those of the others so that you can read his name more easily than even the names of Thomas Jefferson or Benjamin Franklin．Tod ay John Hancock is used to mean any person’s signature．If you ask any American to put his“John Hancock”on a piece of paper，he quickly knows what you mean-you are asking him to sign his name．( )12．This passage is mainly(主要地)about__________．A．the American Revolution B．John Hancock’s handwritingC．how an American expression began D．signing the Declaration of Independence ( )13．Hancock is remembered best because he__________．A．was rich B．was a headC．was an Englishman D．signed his name in large letters( )14．He wrote in that way because he wanted to__________．A．have people see that signature B．show that he was proud(自豪)to be a patriotC．see how large he could write D．be remembered for writing a large name ( )15．John Bull is_________．A．another name for Uncle Sam B．England’s Uncle SamC．a name for England D．another name for the USA四、根据首字母、句子意思或汉语提示写单词．1．—Wh at’s your d of life?—I want to be a famous singer．2．Nanjing is the c of Jiangsu．3．My uncle has a new house with a small g behind it．4．There’s some bread on the plate．Let’s it．5．I often play games with my friends on the_________(海滨)．6．What_________(其他的)things do you want?7．Mary is glad to have her o bedroom now．8．—Where does Mr Fox live?—He lives in a small________(小镇)in Britain．9．I’m enjoying the music．Please keep q ．10．Boys and girls，please keep our classroom clean and t ．11．—Shall we go to the museum this weekend?—That’s a good i ．12．There are about two________(千)students in our school．13．—How can I climb onto the wall?—There’s a 1 ．It may be helpful．14．Is your classroom on the g floor or on the first floor?15．—Where’s Mum?—She’s cooking in the_________．16．We all know September is the n month of a year．17．I have a pet dog．_________(它的)name is Maomao．18．My granny_________(种植)a lot of vegetables on the farm．19．Sandy says her________(邻居)are very kind and she is happy to live here．20．There’s a new square in the_________(中心)of Nantong．五、用所给词的适当形式填空．1．Mr Xu is_________(friend)．You can ask him for help．2．The re’s a dog________(lie)under the chair．3．In the evening，we watch TV in the_________(sit)room．4．The comic book is_________(real)interesting．We all like it．5．He has at__________(little)novels in his schoolbag．6．It’s my son’s_________(twelve)birthday toda y．7．—Where shall we put the books?—Please out them on those_________(shelf)．8．I want a_________(swim)pool in my dream home．9．It’s a_________(rain)day．We can’t play basketball．10．This question is not difficult．You can answer it________(easy)．11．Thank you for________(invite)me to dinner．12．People from different________(country)come to visit Beijing every year．13．I’d like one and a half kilos of_________(tomato)，please．14．In winter，Simon usually takes a bath_________(two)a week．15．There’s a________(wo od)bridge over the small river．16．Paris is the capital of_________(French)．17．He cant’s wait_________(open)the box to see what’s in it．18．Little David looks very_________(fun)in his father’s jacket．19．She is in her________(forty)，but she still looks young．20．Who’s the_________(own)of the new ear?六、变换下列句型，进行同义句转换．1．Would you like to see a film?___________you_________ to see a film?2．The capital of Japan is Tokyo．_________is the__________of Japan．3．I live in a house．It has ten rooms．I live in a__________ __________ten rooms．4．I climb a ladder to get into my house．I get into my house__________a___________．5．It rains a lot in autumn here．There is__________ __________in autumn here．6．I share a bedroom with my sister．My sister and I__________in the__________bedroom．7．The air conditioner is above the window．The window_________ _________ the air conditioner．8．There is a ruler on the pencil-box．There is an English book under the pencil-box．The pencil-box__________ __________a ruler and an English book．9．He has a lot of clothes．He has_______ _________clothes．10．They will arrive on July 9．They will arrive on_________ _________of July．七、任务型阅读People around the worldAt this moment, in different places of the world people are doing different things.In London it’s five o’clock and people are leaving work and are going home. They are waiting for buses and running for trains. Some people are driving their cars. Some are having afternoon tea at home or walking to pubs (酒吧) to have a drink.In Moscow it’s eight o’clock and people aren’t having afternoon tea. They are having dinner at home or in restaurants. Some are going to the opera or watching a ballet. Some are watching TV or playing games at home.In Beijing it’s one o’clock. People aren’t having dinner. They are sleeping.In Los Angeles it’s nine o’clock. People aren’t getting up, washing or getting dressed. They are working. Children are starting their lessons.In New York it’s midday (12:00). People are having lunch. They are eating hamburgers or hot1. __________2. ___________3. __________4. __________5. ___________6. __________7. ___________8. __________9. __________ 10.___________八、根据短文内容及首字母提示，填写所缺的单词The Reading Club meets in the library after school. We read and talk a___1____ English story books. It is a lot of fun. I tell the o____2___ students about good books. Then, they tell me about their f____3___ books. We also learn about new books and choose what we want to r____4__ next. We can read books alone, or we can listen to recordings of storybooks on CDs. I like l____5____ to stories on CD. I can hear many d___6____ voices and sounds. This h___7____me speak and understand English.S____8_____ we read books in pairs. Students in Grade 9 help me read difficult books. They tell me what the words mean and help me understand. This is very h___9____. I like to learn f____10___ the older students.1. __________2. ___________3. __________4. __________5. ___________6. __________7. ___________8. __________9. __________ 10.___________九、书面表达根据提示，以My Classroom为题，写一篇60个单词左右的短文．1．教室在第四层上．2．它又大，又干净，又明亮．3．教室的对面是个阅览室，我们每天都去那里．4．在教室里，有54套桌椅，一张讲桌，两块黑板，许多图片……5．Anna坐在我前面，Mary坐在我后面，我们是好朋友．大家认真学习，感到很快乐．_______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ ___________________________________________________________________参考答案一、选择题1．C 2．C 3．D 4．C 5．D 6．C 7．B 8．A 9．D 10．B 11．B 12．D 13．C 14．B 15．C 16．B 17．B 18．B 19．D 20．A二、完型填空1-5 BDDBC 6-10 ACADB三、阅读理解1-3 CBB 4-7 ADBC 8-11 CDBC 12-15 ADBA四、根据首字母、句子意思或汉语提示写单词．1．dream 2．capital 3．garden 4．share 5．Beach 6．Other 7．own 8．town 9．quiet 10．tidy 11．idea 12．thousand 13．ladder 14．ground 15．kitchen 16．ninth 17．Its 18．grows 19．neighbours 20．centre五、用所给词的适当形式填空．1．friendly 2．lying 3．sitting 4．really 5．least 6．twelfth 7．shelves 8．swimming 9．rainy 10．easily 11．inviting 12．countries 13．tomatoes 14．twice 15．wooden 16．France 17．to open 18．funny 19．forties 20．owner六、变换下列句型，进行同义句转换．1．Do，want 2．Tokyo．capital 3．house with 4．with，1adder 5．much rain 6．live．same 7．is below 8．is between 9．lots of 10．the ninth七、任务型阅读1. around2. Time3. drink4. restaurants5. playing6. Beijing7. sleeping8. Nine9. Students/ Children 10. or八、根据短文内容及首字母提示，填写所缺的单词1.about2.other3.favourite4.read5.listening6.different7.helps8.Sometimes9.helpful 10.from九、书面表达My ClassroomMy classroom is on the third floor．It’s big．clean and bright．There is a reading room opposite the classroom．We go there every day．There are 54 desks and chairs，a teacher’s desk，two blackboards and many pictures in the classroom．Anna is sitting in front of me．Mary is sitting behind me．We are good friends．We work hard at our lessons and we all feel very happy。
2015-2016学年江苏省南通市海安县七校联考七年级(下)期中数学试卷
2015-2016学年江苏省南通市海安县七校联考七年级（下）期中数学试卷一、选择题（共10小题，每小题2分，满分20分）1．（2分）实数、、0、﹣π、、﹣、﹣、0.131131113…，其中无理数的个数是（）A．4 B．2 C．1 D．32．（2分）下列运算正确的是（）A．﹣=5 B．=102C．=2D．=±0.53．（2分）由方程组可得出x与y的关系式是（）A．x+y=9 B．x+y=3 C．x+y=﹣3 D．x+y=﹣94．（2分）下列生活中的各个现象，属于平移变换现象的是（）A．拉开抽屉B．用放大镜看文字C．时钟上分针的运动D．你和平面镜中的像5．（2分）小明去超市买东西花20元，他身上只带了面值为2元和5元的纸币，营业员没有零钱找给他，那么小明付款有几种方式（）A．2种 B．3种 C．4种 D．5种6．（2分）若0＜x＜1，则x，，x2的大小关系是（）A．＜x＜x2B．x＜＜x2C．x2＜x＜D．＜x2＜x7．（2分）有下列四个命题：①相等的角是对顶角；②两条直线被第三条直线所截，同位角相等；③过一点有且只有一条直线与已知直线平行；④在同一平面内，垂直于同一条直线的两条直线互相平行．其中真命题的个数为（）A．1 B．2 C．3 D．48．（2分）已知∠1和∠2的两边互相平行，已知∠1=40°，则∠2=（）A．40°B．140°C．40°和50°D．40°或140°9．（2分）点P（﹣|a|﹣1，b2+2）一定在（）A．第一象限B．第二象限C．第三象限D．第四象限10．（2分）如图①是一块瓷砖的图案，用这种瓷砖来铺设地面，如果铺成一个2×2的正方形图案（如图②），其中完整的圆共有5个，如果铺成一个3×3的正方形图案（如图③），其中完整的圆共有13个，如果铺成一个4×4的正方形图案（如图④），其中完整的圆共有25个，若这样铺成一个10×10的正方形图案，则其中完整的圆共有（）个．A．100 B．121 C．181 D．1021二、填空题（共8小题，每小题3分，满分24分）11．（3分）的平方根是．12．（3分）化简：|﹣2|+|﹣﹣|=．13．（3分）构造一个以为解的二元一次方程．14．（3分）点A（9﹣a，a﹣3）在第一、三象限的角平分线上，则点A的坐标为．15．（3分）把命题“同角的余角相等”改写成“如果…那么…”的形式．16．（3分）定义新运算：对于任意实数a，b，都有a⊕b=a（a﹣b）+1，其中等式右边是通常的加法、减法及乘法运算，比如2⊕5=2（2﹣5）+1=2（﹣3）+1=﹣6+1=﹣5，那么不等式3⊕x＜13的解集为．17．（3分）如图，直线l1∥l2，∠A=125°，∠B=85°，则∠1+∠2=．18．（3分）在平面直角坐标系中，设坐标轴的单位长度为1cm，整数点P从原点O出发，速度为1cm/s，且点P只能向上或向右运动，如点p从O点出发1秒时，点p的坐标为（0，1）（1，0），整数点个数为2个；点p从O点出发2秒时，点p的坐标为（0，2）（2，0），（1，1），整数点个数为3个…，当P点从点O出发10秒时，可得到整数点有个；当P点从点O出发秒时，可得到整数点（10，5）．三、认真答一答（本大题共8大题，满分56分）19．（7分）解下列方程组（1）（2）．20．（5分）已知y=x2+px+q，当x=1时，y=3；当x=3时，y=7．求当x=﹣5时，y 的值．21．（5分）已知a，b为实数，且﹣（b﹣1）=0，求a2015﹣b2016的值．22．（6分）求不等式组的解集并把解集在数轴上表示出来，最后求出不等式组所有自然数解的和．23．（6分）已知关于x的不等式2（a﹣b）x+a﹣5b＞0的解集为x＜，求关于x的不等式ax＞b的解集．24．（7分）已知，如图，CD⊥AB，GF⊥AB，∠B=∠ADE，试说明∠1=∠2．25．（8分）在平面直角坐标系中，A（0，2），B（4，0），C（4，3）（1）求△ABC的面积；（2）如果在第二象限内有一点P（a，1），试用含a的式子表示四边形ABOP的面积；（3）在（2）的条件下，是否存在点P，使得四边形ABOP的面积与△ABC的面积相等？若存在，求出点P的坐标；若不存在，请说明理由．26．（12分）荣昌公司要将本公司100吨货物运往某地销售，经与春晨运输公司协商，计划租用甲、乙两种型号的汽车共6辆，用这6辆汽车一次将货物全部运走，其中每辆甲型汽车最多能装该种货物16吨，每辆乙型汽车最多能装该种货18吨．已知租用1辆甲型汽车和2辆乙型汽车共需费用2500元；租用2辆甲型汽车和1辆乙型汽车共需费用2450元，且同一种型号汽车每辆租车费用相同．（1）求租用一辆甲型汽车、一辆乙型汽车的费用分别是多少元？（2）若荣昌公司计划此次租车费用不超过5000元．通过计算求出该公司有几种租车方案？请你设计出来，并求出最低的租车费用．2015-2016学年江苏省南通市海安县七校联考七年级（下）期中数学试卷参考答案与试题解析一、选择题（共10小题，每小题2分，满分20分）1．（2分）（2016春•海安县期中）实数、、0、﹣π、、﹣、﹣、0.131131113…，其中无理数的个数是（）A．4 B．2 C．1 D．3【分析】根据无理数是无限不循环小数，可得答案．【解答】解：﹣π、﹣、0.131131113…是无理数，故选：D．【点评】此题主要考查了无理数的定义，注意带根号的要开不尽方才是无理数，无限不循环小数为无理数．如π，，0.8080080008…（每两个8之间依次多1个0）等形式．2．（2分）（2016春•海安县期中）下列运算正确的是（）A．﹣=5 B．=102C．=2D．=±0.5【分析】原式各项利用算术平方根及立方根定义计算即可得到结果．【解答】解：A、原式没有意义，错误；B、原式=102，正确；C、原式==，错误；D、原式=0.5，错误，故选B．【点评】此题考查了立方根，以及算术平方根，熟练掌握各自的定义是解本题的关键．3．（2分）（2011•淄博）由方程组可得出x与y的关系式是（）A．x+y=9 B．x+y=3 C．x+y=﹣3 D．x+y=﹣9【分析】由①得m=6﹣x，代入方程②，即可消去m得到关于x，y的关系式．【解答】解：由①得：m=6﹣x∴6﹣x=y﹣3∴x+y=9．故选A．【点评】本题考查了代入消元法解方程组，是一个基础题．4．（2分）（2016春•海安县期中）下列生活中的各个现象，属于平移变换现象的是（）A．拉开抽屉B．用放大镜看文字C．时钟上分针的运动D．你和平面镜中的像【分析】根据平移的定义直接判断即可．【解答】解：A、是平移；B、大小发生变化，不是平移；C、是旋转；D、你和平面镜中的像不是平移，是轴对称．故选A．【点评】本题考查了图形的平移，图形的平移只改变图形的位置，而不改变图形的形状和大小，学生易混淆图形的平移与旋转或翻转而误选．5．（2分）（2014•鸡西一模）小明去超市买东西花20元，他身上只带了面值为2元和5元的纸币，营业员没有零钱找给他，那么小明付款有几种方式（）A．2种 B．3种 C．4种 D．5种【分析】设小明付款时2元和5元的纸币分别有x、y张，由于小明去超市买东西花20元，由此得到方程2x+5y=20，然后根据x、y都是自然数即可确定x、y 的值．【解答】解：设小明付款时2元和5元的纸币分别有x、y张，∵小明去超市买东西花20元，∴2x+5y=20，∴2x=20﹣5y而x≥0，y≥0，且x、y是整数，∴y必须是偶数，∴y=2，4或0，x=5，0或10．∴小明付款有三种方式．故选B．【点评】此题首先要正确理解题意，根据题意找出题目的隐含条件，然后利用这些条件列出方程或不等式解决问题．6．（2分）（2009•鸡西）若0＜x＜1，则x，，x2的大小关系是（）A．＜x＜x2B．x＜＜x2C．x2＜x＜D．＜x2＜x【分析】已知x的取值范围，可运用取特殊值的方法，选取一个符合条件的实数代入选项求得答案．【解答】解：∵0＜x＜1，∴可假设x=0.1，则==10，x2=（0.1）2=，∵＜0.1＜10，∴x2＜x＜．故选C．【点评】解答此类题目关键是要找出符合条件的数，代入计算即可求得答案．注意：取特殊值的方法只适用于填空题与选择题，对于解答题千万不能用此方法．7．（2分）（2016春•海安县期中）有下列四个命题：①相等的角是对顶角；②两条直线被第三条直线所截，同位角相等；③过一点有且只有一条直线与已知直线平行；④在同一平面内，垂直于同一条直线的两条直线互相平行．其中真命题的个数为（）A．1 B．2 C．3 D．4【分析】分别根据对顶角的性质、同位角的定义、平行线的性质对各小题进行逐一判断即可．【解答】解：①相等的角不一定是对顶角，故此命题是假命题；②两条平行线线被第三条直线所截，同位角相等，故此命题是假命题；③过一直线外一点有且只有一条直线与已知直线平行，故此命题是假命题；④在同一平面内，垂直于同一条直线的两条直线互相平行，故此命题是真命题．故选A．【点评】本题考查的是命题与定理，熟知对顶角的性质、同位角的定义、平行线的性质等知识是解答此题的关键．8．（2分）（2016春•海安县期中）已知∠1和∠2的两边互相平行，已知∠1=40°，则∠2=（）A．40°B．140°C．40°和50°D．40°或140°【分析】分两种情况作出图形，然后根据平行线的性质解答即可．【解答】解：如图1，∵∠1和∠2的两边互相平行，∴∠3=∠1=40°，∴∠2=∠3=40°，如图2，∵∠1和∠2的两边互相平行，∴∠3=∠1=40°，∴∠2=180°﹣∠3=180°﹣40°=140°，综上所述，∠2=40°或140°．故选D．【点评】本题考查了平行线的性质，是基础题，熟记性质是解题的关键，作出图形更形象直观．9．（2分）（2016春•海安县期中）点P（﹣|a|﹣1，b2+2）一定在（）A．第一象限B．第二象限C．第三象限D．第四象限【分析】先判断出点P的横坐标为负数，纵坐标为整数，然后根据各象限内点的坐标特征求解即可．【解答】解：∵|a|＞0，∴﹣|a|﹣1＜0，∵b2＞0，∴b2+2＞0．∴点P的横坐标是负数，纵坐标是正数，∴点P在第二象限．故选B．【点评】本题考查了点的坐标，解答本题的关键在于记住各象限内点的坐标的符号，四个象限的符号特点分别是：第一象限（+，+）；第二象限（﹣，+）；第三象限（﹣，﹣）；第四象限（+，﹣）．10．（2分）（2016春•海安县期中）如图①是一块瓷砖的图案，用这种瓷砖来铺设地面，如果铺成一个2×2的正方形图案（如图②），其中完整的圆共有5个，如果铺成一个3×3的正方形图案（如图③），其中完整的圆共有13个，如果铺成一个4×4的正方形图案（如图④），其中完整的圆共有25个，若这样铺成一个10×10的正方形图案，则其中完整的圆共有（）个．A．100 B．121 C．181 D．1021【分析】观察图案，由①可知：圆的个数为：1个，即12个；由②可知：圆的个数为：4+1=5个，即22+12个；由③可知：圆的个数为：9+4=13个，即32+22个；…所以可得结论．【解答】解：圆的个数分别是：①：1，②：22+12=5，③：33+22=9+4=13，④：42+32=16+9=25，所以若这样铺成一个10×10的正方形图案：圆的个数为：102+92=100+81=181，故选C．【点评】本题既考查了平面镶嵌问题，又考查了数字变化和图形变化的规律问题，此类题的解题思路：认真观察图形，从第一个图形开始，依次总结规律，善于联想可能预见的规律，并一一实验其准确性．二、填空题（共8小题，每小题3分，满分24分）11．（3分）（2016•商丘四模）±．【分析】的平方根就是2的平方根，只需求出2的平方根即可．【解答】解：∵=2，2的平方根是±，∴的平方根是±．故答案为是±．【点评】本题考查的是一个正数的算术平方根及平方根，需要注意的是本题求的是的平方根，而不是4的平方根，不能混淆．12．（3分）（2016春•海安县期中）化简：|﹣2|+|﹣﹣|=2+．【分析】先去绝对值符号，再合并同类项即可．【解答】解：原式=2﹣++=2+．故答案为：2+．【点评】本题考查的是实数的运算，熟知绝对值的性质是解答此题的关键．13．（3分）（2016春•海安县期中）构造一个以为解的二元一次方程x+y=1等（答案不唯一）．【分析】先任意写出一个关于x、y的一次代数式，然后将x=5，y=﹣4代入求得代数式的值即可．【解答】解：∵当x=5，y=﹣4时，x+y=5+（﹣4）=1，∴符合条件的一个方程为x+y=1．故答案为：x+y=1（答案不唯一）．【点评】本题主要考查的是二元一次方程的解的定义，掌握方程的解得定义是解题的关键．14．（3分）（2016春•海安县期中）点A（9﹣a，a﹣3）在第一、三象限的角平分线上，则点A的坐标为（3，3）．【分析】根据第一、三象限的角平分线上点的横坐标等于纵坐标，可得方程，根据解方程，可得答案．【解答】解：由A（9﹣a，a﹣3）在第一、三象限的角平分线上，得9﹣a=a﹣3，解得a=6，则点A的坐标为（3，3），故答案为：（3，3）．【点评】本题考查了点的坐标，利用第一、三象限的角平分线上点的横坐标等于纵坐标得出方程是解题关键．15．（3分）（2013•邵东县模拟）把命题“同角的余角相等”改写成“如果…那么…”的形式如果两个角是同一个角的余角，那么这两个角相等．【分析】命题有题设和结论两部分组成，通常写成“如果…那么…”的形式．“如果”后面接题设，“那么”后面接结论．【解答】解：根据命题的特点，可以改写为：“如果两个角是同一个角的余角，那么这两个角相等”，故答案为：如果两个角是同一个角的余角，那么这两个角相等．【点评】本题考查命题的定义，根据命题的定义，命题有题设和结论两部分组成．16．（3分）（2016春•海安县期中）定义新运算：对于任意实数a，b，都有a⊕b=a（a﹣b）+1，其中等式右边是通常的加法、减法及乘法运算，比如2⊕5=2（2﹣5）+1=2（﹣3）+1=﹣6+1=﹣5，那么不等式3⊕x＜13的解集为x＞﹣1．【分析】根据运算的定义列出不等式，然后解不等式求得不等式的解集即可．【解答】解：3⊕x＜13，3（3﹣x）+1＜13，解得：x＞﹣1．故答案为：x＞﹣1．【点评】此题考查一元一次不等式解集的求法，理解运算的方法，改为不等式是解决问题的关键．17．（3分）（2015春•黄州区期末）如图，直线l1∥l2，∠A=125°，∠B=85°，则∠1+∠2=30°．【分析】先利用三角形外角性质得∠1+∠3=125°，∠2+∠4=85°，把两式相加得到∠1+∠3+∠2+∠4=210°，再根据平行线的性质，由l1∥l2得到∠3+∠4=180°，然后通过角度的计算得到∠1+∠2的度数．【解答】解：如图，∵∠1+∠3=125°，∠2+∠4=85°，∴∠1+∠3+∠2+∠4=210°，∵l1∥l2，∴∠3+∠4=180°，∴∠1+∠2=210°﹣180°=30°．故答案为30°．【点评】本题考查了平行线性质：两直线平行，同位角相等；两直线平行，同旁内角互补；两直线平行，内错角相等．也考查了三角形外角性质．18．（3分）（2016春•海安县期中）在平面直角坐标系中，设坐标轴的单位长度为1cm，整数点P从原点O出发，速度为1cm/s，且点P只能向上或向右运动，如点p从O点出发1秒时，点p的坐标为（0，1）（1，0），整数点个数为2个；点p从O点出发2秒时，点p的坐标为（0，2）（2，0），（1，1），整数点个数为3个…，当P点从点O出发10秒时，可得到整数点有11个；当P点从点O出发15秒时，可得到整数点（10，5）．【分析】结合运动的方法以及排列组合知识得出规律“当点P出发n秒，可得到整数点n+1个，且横纵坐标之和为n”，由此规律即可得出结论．【解答】解：结合运动规律可知，当运动n秒时，横坐标可供选择的数字有：0，1，2，…，n，任取其中一个有n+1个选择，当横坐标固定后，由运动的特性可知：横纵坐标之和为n，∴纵坐标只有一种选法．∴当点P出发n秒，可得到整数点n+1个，且横纵坐标之和为n．当n=10时，可得到10+1=11个整数点；当能得到点（10，5）时，n=10+5=15．故答案为：11；15．【点评】本题考查了规律型的点的坐标，解题的关键是找出规律“当点P出发n 秒，可得到整数点n+1个，且横纵坐标之和为n”．本题属于中档题，难度不大，解决该题型题目时，根据点P的运动方式结合前面学过的排列组合知识找出规律是关键．三、认真答一答（本大题共8大题，满分56分）19．（7分）（2016春•海安县期中）解下列方程组（1）（2）．【分析】（1）方程组利用加减消元法求出解即可；（2）方程组利用加减消元法求出解即可．【解答】解：（1），①+②得：4x=8，即x=2，把x=2代入①得：y=1，则方程组的解为；（2），①﹣②得：x﹣y=1③，③×2013﹣①得：x=﹣2，把x=﹣2代入③得：y=﹣3，则方程组的解为．【点评】此题考查了解二元一次方程组，利用了消元的思想，消元的方法有：代入消元法与加减消元法．20．（5分）（2014春•太仓市期末）已知y=x2+px+q，当x=1时，y=3；当x=3时，y=7．求当x=﹣5时，y的值．【分析】将x与y的值代入求出p与q的值，确定出y与x解析式，将x=﹣5代入计算即可求出y的值．【解答】解：将x=1，y=3；x=3，y=7分别代入得：，解得：，∴y=x2﹣2x+4，当x=﹣5时，y=39．【点评】此题考查了解二元一次方程组，利用了消元的思想，消元的方法有：代入消元法与加减消元法．21．（5分）（2016春•海安县期中）已知a，b为实数，且﹣（b﹣1）=0，求a2015﹣b2016的值．【分析】由已知条件得到+（1﹣b）=0，利用二次根式有意义的条件得到1﹣b≥0，再根据几个非负数和的性质得到1+a=0，1﹣b=0，解得a=﹣1，b=1，然后根据乘方的意义计算a2015﹣b2016的值．【解答】解：∵﹣（b﹣1）=0，∴+（1﹣b）=0，∵1﹣b≥0，∴1+a=0，1﹣b=0，解得a=﹣1，b=1，∴a2015﹣b2016=（﹣1）2015﹣12016=﹣1﹣1=﹣2．【点评】本题考查了非负数的性质：算术平方根具有非负性．非负数之和等于0时，各项都等于0利用此性质列方程解决求值问题．22．（6分）（2016春•海安县期中）求不等式组的解集并把解集在数轴上表示出来，最后求出不等式组所有自然数解的和．【分析】分别求出每一个不等式的解集，将不等式解集表示在数轴上，结合公共部分确定不等式组的解集，将解集内的自然数相加可得．【解答】解：，解不等式3（x﹣1）+2＜5x+3，得：x＞﹣2，解不等式+x≥3x﹣4，得：x≤，将不等式解集表示在数轴上如图：故不等式组的解集为：﹣2＜x≤，不等式组所有自然数解的和为0+1+2=3．【点评】本题考查的是解一元一次不等式组，正确求出每一个不等式解集是解题的关键．23．（6分）（2016春•海安县期中）已知关于x的不等式2（a﹣b）x+a﹣5b＞0的解集为x＜，求关于x的不等式ax＞b的解集．【分析】不等式去括号，移项合并，表示出解集，根据已知解集确定出a与b 的值，即可求出所求不等式的解集．【解答】解：不等式移项得：2（a﹣b）x＞5b﹣a，由不等式的解集为x＜，得到a﹣b＜0，且=，整理得：a＜b，且3a=8b，即a=b，∴a＜0，则不等式ax＞b变形得：x＜=．【点评】此题考查了不等式的解集，熟练掌握不等式组取解集的方法是解本题的关键．24．（7分）（2013春•安龙县期末）已知，如图，CD⊥AB，GF⊥AB，∠B=∠ADE，试说明∠1=∠2．【分析】利用平行线的判定及性质，通过证明∠1=∠BCD=∠2达到目的．【解答】证明：∵∠B=∠ADE（已知），∴DE∥BC（同位角相等，两直线平行）∴∠1=∠DCB．（两直线平行，内错角相等）∵CD⊥AB，GF⊥AB，∴CD∥FG（平面内，垂直于同一条直线的两条直线平行），∴∠2=∠DCB．（两直线平行，同位角相等）∴∠1=∠2．（等量代换）【点评】此题主要考查了平行线的判定及性质．性质：1、两直线平行，同位角相等；2、两直线平行，内错角相等；3、两直线平行，同旁内角互补．判定：1、同位角相等，两直线平行；2、内错角相等，两直线平行；3、同旁内角互补，两直线平行．25．（8分）（2016春•海安县期中）在平面直角坐标系中，A（0，2），B（4，0），C（4，3）（1）求△ABC的面积；（2）如果在第二象限内有一点P（a，1），试用含a的式子表示四边形ABOP的面积；（3）在（2）的条件下，是否存在点P，使得四边形ABOP的面积与△ABC的面积相等？若存在，求出点P的坐标；若不存在，请说明理由．【分析】（1）画出图形，根据三角形面积公式计算即可．（2）根据S=S△AOB+S△AOP计算即可，注意a＜0这个条件．四边形ABCD（3）列出方程即可解决．【解答】解：（1）如图所示，S△ABC=×3×4=6．（2）S=S△AOB+S△AOP=×4×2+×2×（﹣a）=4﹣a．四边形ABCD（3）由题意4﹣a=6，∴a=﹣2，∴点p坐标为（﹣2，1）．【点评】本题考查坐标与图形性质、三角形面积等知识，解题的关键是记住三角形面积公式，学会利用分割法求四边形面积，属于中考常考题型．26．（12分）（2008•哈尔滨）荣昌公司要将本公司100吨货物运往某地销售，经与春晨运输公司协商，计划租用甲、乙两种型号的汽车共6辆，用这6辆汽车一次将货物全部运走，其中每辆甲型汽车最多能装该种货物16吨，每辆乙型汽车最多能装该种货18吨．已知租用1辆甲型汽车和2辆乙型汽车共需费用2500元；租用2辆甲型汽车和1辆乙型汽车共需费用2450元，且同一种型号汽车每辆租车费用相同．（1）求租用一辆甲型汽车、一辆乙型汽车的费用分别是多少元？（2）若荣昌公司计划此次租车费用不超过5000元．通过计算求出该公司有几种租车方案？请你设计出来，并求出最低的租车费用．【分析】（1）找出等量关系列出方程组再求解即可．本题的等量关系为“1辆甲型汽车和2辆乙型汽车共需费用2500元”和“租用2辆甲型汽车和1辆乙型汽车共需费用2450元”．（2）得等量关系是“将本公司100吨货物运往某地销售，经与春晨运输公司协商，计划租用甲、乙两种型号的汽车共6辆，用这6辆汽车一次将货物全部运走，其中每辆甲型汽车最多能装该种货物16吨同一种型号汽车每辆且同一种型号汽车每辆租车费用相同”．【解答】解：（1）设租用一辆甲型汽车的费用是x元，租用一辆乙型汽车的费用是y元．由题意得，；解得：，答：租用一辆甲型汽车的费用是800元，租用一辆乙型汽车的费用是850元．（2）设租用甲型汽车z辆，租用乙型汽车（6﹣z）辆．由题意得，解得2≤z≤4，由题意知，z为整数，∴z=2或z=3或z=4，∴共有3种方案，分别是：方案一：租用甲型汽车2辆，租用乙型汽车4辆；方案二：租用甲型汽车3辆，租用乙型汽车3辆；方案三：租用甲型汽车4辆，租用乙型汽车2辆．方案一的费用是800×2+850×4=5000（元）；方案二的费用是800×3+850×3=4950（元）；方案三的费用是800×4+850×2=4900（元）；∵5000＞4950＞4900；∴最低运费是方案三的费用：4900元；答：共有三种方案，分别是：方案一：租用甲型汽车2辆，租用乙型汽车4辆；方案二：租用甲汽车3辆，租用乙型汽车3辆；方案三：租用甲型汽车4辆，租用乙型汽车2辆．最低运费是4900元．【点评】解题关键是要读懂题目的意思，找出（1）合适的等量关系：1辆甲型汽车和2辆乙型汽车共需费用2500元”和“租用2辆甲型汽车和1辆乙型汽车共需费用2450元”．（2）根据租车费用不超过5000元列出方程组，再求解．参与本试卷答题和审题的老师有：2300680618；sks；zhxl；wdxwzk；Liuzhx；csiya；CJX；ZJX；星期八；caicl；tcm123；1160374；梁宝华；马兴田；nhx600；gsls；曹先生；三界无我；zhangCF；开心；弯弯的小河（排名不分先后）菁优网2017年2月26日第21页（共21页）。
江苏省南通市2015-2016学年七年级(下)期中数学试卷(解析版)
2015-2016学年江苏省南通市七年级（下）期中数学试卷一、选择题（共10小题，每小题2分，满分20分）1．的算术平方根是（）A．B．C．D．2．在平面直角坐标系中，点P（2，﹣7）位于（）A．第一象限 B．第二象限 C．第三象限 D．第四象限3．不等式2x+3＜5的解集在数轴上表示为（）A．B．C．D．4．已知正方形的面积是17，则它的边长在（）A．5与6之间B．4与5之间C．3与4之间D．2与3之间5．如图，将一块含有30°角的直角三角板的两个顶点叠放在矩形的两条对边上，如果∠1=27°，那么∠2的度数为（）A．53°B．55°C．57°D．60°6．如果a＜b，那么下列不等式成立的是（）A．a﹣b＞0 B．a﹣3＞b﹣3 C．a＞ b D．﹣3a＞﹣3b7．已知x=3+k，y=4﹣3k，则用含x的代数式表示y为（）A．y=13﹣3x B．y=﹣13﹣3x C．y=﹣5﹣3x D．y=5﹣3x8．如图，点A，B，E在一条直线上，下列条件中不能判断AD∥BC的是（）A．∠1=∠2 B．∠A+∠ABC=180°C．∠A=∠5 D．∠3=∠49．已知关于x的不等式组的解集为3≤x＜5，则的值为（）A．﹣2 B．﹣C．﹣4 D．﹣10．如图，长方形ABCD中，AB=6，第一次平移长方形ABCD沿AB的方向向右平移5个单位，得到长方形A1B1C1D1，第2次平移将长方形A1B1C1D1沿A1B1的方向向右平移5个单位，得到长方形A2B2C2D2…，第n次平移将长方形A n﹣1B n﹣1C n﹣1D n﹣1沿A n﹣1B n﹣1的方向平移5个单位，得到长方形A n B n C n D n（n＞2），若AB n的长度为2016，则n的值为（）A．400 B．401 C．402 D．403二、填空题（共8小题，每小题2分，满分16分）11．化简：=．12．用不等式表示“b的2倍与7的差是负数”．13．是关于x和y的二元一次方程ax+y=1的解，则a的值为．14．若（3x﹣2y﹣8）2+|x﹣2y﹣4|=0，则点P（x，y）在第象限．15．打折前，买60件A商品和30件B商品用了1080元，买50件A商品和10件B商品用了840元，打折后，买500件A商品和500件B商品用了9500元，比不打折时，一共少花了元．16．已知第二象限的线段PQ∥x轴，点P（﹣1，4），PQ=2，则点Q的坐标为．17．如图，数轴上A，B两点表示的数分别是1和，点A关于点B的对称点是点C，则点C所表示的数是．18．若关于x的不等式﹣mx﹣n＞0的解集是x，则关于x的不等式（m﹣n）x＞n+m的解集是．三、解答题（共10小题，满分64分）19．计算：（1）+﹣；（2）﹣12+﹣﹣||20．解方程组（1）（2）．21．解不等式，并把解集表示在数轴上．．22．若关于x、y的二元一次方程组的解满足x+y≤1，求k的取值范围．23．已知a，b是实数，且b=，求的值．24．已知：如图，在△ABC中，BD⊥AC于点D，E为BC上一点，过E点作EF⊥AC，垂足为F，过点D作DH∥BC交AB于点H．（1）请你补全图形．（2）求证：∠BDH=∠CEF．25．如图，三角形ABC中任一点P（m，n）经平移后对应点为P1（m+4，n﹣3），将三角形ABC作同样的平移得到三角形A1B1C1．（1）直接写出A1、C1的坐标分别为A1，C1；（2）在图中画出△A1B1C1；（3）请直接写出△A1B1C1的面积是．26．若关于x的不等式组恰有三个整数解，求实数a的取值范围．27．某体育用品专卖店销售7个篮球和9个排球的总利润为355元，销售10个篮球和20个排球的总利润为650元．（1）求每个篮球和每个排球的销售利润；（2）已知每个篮球的进价为200元，每个排球的进价为160元，若该专卖店计划用不超过17400元购进篮球和排球共100个，且要求篮球数量不少于排球数量的一半，请你为专卖店设计符合要求的进货方案．28．在平面直角坐标系中，O为坐标原点，点A的坐标为（a，﹣a），点B坐标为（b，c），a、b、c满足．（1）若a没有平方根，判断点A在第几象限并说明理由；（2）若点A到y轴的距离是点B到y轴距离的3倍，求点B的坐标；（3）点D的坐标为（2，﹣4），△OAB的面积是△DAB面积的2倍，求点B的坐标．2015-2016学年江苏省南通市七年级（下）期中数学试卷参考答案与试题解析一、选择题（共10小题，每小题2分，满分20分）1．的算术平方根是（）A．B．C． D．【考点】算术平方根．【分析】利用算术平方根的定义计算即可得到结果．【解答】解：根据题意得：的算术平方根为．故答案为：．2．在平面直角坐标系中，点P（2，﹣7）位于（）A．第一象限 B．第二象限 C．第三象限 D．第四象限【考点】点的坐标．【分析】根据各象限内点的坐标特征解答．【解答】解：点P（2，﹣7）位于第四象限．故选D．3．不等式2x+3＜5的解集在数轴上表示为（）A．B．C．D．【考点】在数轴上表示不等式的解集；解一元一次不等式．【分析】先求出不等式的解集，再在数轴上表示出来即可．【解答】解：移项得，2x＜5﹣3，合并同类项得，2x＜2，系数化为1得．x＜1．在数轴上表示为：．故选A．4．已知正方形的面积是17，则它的边长在（）A．5与6之间B．4与5之间C．3与4之间D．2与3之间【考点】估算无理数的大小；算术平方根．【分析】由正方形的面积等于边长的平方，故根据已知的面积开方即可求出正方形的边长为，由16≤17≤25可得的取值范围．【解答】解：设正方形的边长为a，由正方形的面积为17得：a2=17，又∵a＞0，∴a=，∵16≤17≤25，∴4≤5．故选B．5．如图，将一块含有30°角的直角三角板的两个顶点叠放在矩形的两条对边上，如果∠1=27°，那么∠2的度数为（）A．53°B．55°C．57°D．60°【考点】平行线的性质．【分析】根据三角形的一个外角等于与它不相邻的两个内角的和求出∠3，再根据两直线平行，同位角相等可得∠2=∠3．【解答】解：由三角形的外角性质，∠3=30°+∠1=30°+27°=57°，∵矩形的对边平行，∴∠2=∠3=57°．故选：C．6．如果a＜b，那么下列不等式成立的是（）A．a﹣b＞0 B．a﹣3＞b﹣3 C．a＞ b D．﹣3a＞﹣3b【考点】不等式的性质．【分析】根据不等式的基本性质对每个选项进行判断．【解答】解：a＜bA、a﹣b＜0，故A选项错误；B、a﹣3＜b﹣3，故B选项错误；C、a＜b，故C选项错误；D、﹣3a＞﹣3b，故D选项正确．故选：D．7．已知x=3+k，y=4﹣3k，则用含x的代数式表示y为（）A．y=13﹣3x B．y=﹣13﹣3x C．y=﹣5﹣3x D．y=5﹣3x【考点】解二元一次方程．【分析】将x看做已知数求出k即可．【解答】解：由x=3+k，可得：k=x﹣3，把k=x﹣3代入y=4﹣3k=13﹣3x，故选A8．如图，点A，B，E在一条直线上，下列条件中不能判断AD∥BC的是（）A．∠1=∠2 B．∠A+∠ABC=180°C．∠A=∠5 D．∠3=∠4【考点】平行线的判定．【分析】根据平行线的判定定理：同位角相等，两直线平行；内错角相等，两直线平行；同旁内角互补，两直线平行分别进行分析即可．【解答】解：A、∠1=∠2可利用内错角相等，两直线平行判定AD∥BC，故此选项错误；B、∠A+∠ABC=180°可利用同旁内角互补，两直线平行判定AD∥BC，故此选项错误；C、∠A=∠5可利用同位角相等，两直线平行判定AD∥BC，故此选项错误；D、∠3=∠4，可根据内错角相等，两直线平行判定CD∥BA，不能判定AD∥BC，故此选项正确；故选：D．9．已知关于x的不等式组的解集为3≤x＜5，则的值为（）A．﹣2 B．﹣C．﹣4 D．﹣【考点】解一元一次不等式组；二元一次方程组的解．【分析】先解不等式组，解集为a+b≤x＜，再由不等式组的解集为3≤x＜5，转化成关于a，b的方程组来解即可．【解答】解：不等式组由①得，x≥a+b，由②得，x＜，∴，解得，∴=﹣2．故选A．10．如图，长方形ABCD中，AB=6，第一次平移长方形ABCD沿AB的方向向右平移5个单位，得到长方形A1B1C1D1，第2次平移将长方形A1B1C1D1沿A1B1的方向向右平移5个单位，得到长方形A2B2C2D2…，第n次平移将长方形A n﹣1B n﹣1C n﹣1D n﹣1沿A n﹣1B n﹣1的方向平移5个单位，得到长方形A n B n C n D n（n＞2），若AB n的长度为2016，则n的值为（）A．400 B．401 C．402 D．403【考点】平移的性质．【分析】根据平移的性质得出AA1=5，A1A2=5，A2B1=A1B1﹣A1A2=6﹣5=1，进而求出AB1和AB2的长，然后根据所求得出数字变化规律，进而得出AB n=（n+1）×5+1求出n即可．【解答】解：∵AB=6，第1次平移将矩形ABCD沿AB的方向向右平移5个单位，得到矩形A1B1C1D1，第2次平移将矩形A1B1C1D1沿A1B1的方向向右平移5个单位，得到矩形A2B2C2D2…，∴AA1=5，A1A2=5，A2B1=A1B1﹣A1A2=6﹣5=1，∴AB1=AA1+A1A2+A2B1=5+5+1=11，∴AB2的长为：5+5+6=16；∵AB1=2×5+1=11，AB2=3×5+1=16，∴AB n=（n+1）×5+1=2016，解得：n=402．故选C二、填空题（共8小题，每小题2分，满分16分）11．化简：=3．【考点】二次根式的性质与化简．【分析】先算出（﹣3）2的值，再根据算术平方根的定义直接进行计算即可．【解答】解：==3，故答案为：3．12．用不等式表示“b的2倍与7的差是负数”2b﹣7＜0．【考点】由实际问题抽象出一元一次不等式．【分析】负数即是小于零的数，由此可用不等式表示．【解答】解：b的2倍与7的差是负数用不等式表示为2b﹣7＜0，故答案为：2b﹣7＜013．是关于x和y的二元一次方程ax+y=1的解，则a的值为3．【考点】二元一次方程的解．【分析】把x、y的值代入方程可得到a的方程，可求得a的值．【解答】解：∵是关于x和y的二元一次方程ax+y=1的解，∴代入方程可得a﹣2=1，解得a=3，故答案为：3．14．若（3x﹣2y﹣8）2+|x﹣2y﹣4|=0，则点P（x，y）在第四象限．【考点】点的坐标．【分析】根据非负数的性质列方程组求出x、y的值，再根据各象限内点的坐标特征解答．【解答】解：由题意得，，解得，所以，点P坐标为（2，﹣1），在第四象限．故答案为：四．15．打折前，买60件A商品和30件B商品用了1080元，买50件A商品和10件B商品用了840元，打折后，买500件A商品和500件B商品用了9500元，比不打折时，一共少花了500元．【考点】二元一次方程组的应用．【分析】设打折前A商品每件x元，B商品每件y元，根据①买60件A商品和30件B商品用了1080元；②买50件A商品和10件B商品用了840元．可列出方程组求得A、B商品的单件，继而可得打折前买500件A商品和500件B商品所需总费用，比较即可得答案．【解答】解：设打折前A商品每件x元，B商品每件y元，根据题意，得：，解得：，∴打折前买500件A商品和500件B商品需要500×16+500×4=10000元，则打折后比打折前少花10000﹣9500=500（元），故答案为：500．16．已知第二象限的线段PQ∥x轴，点P（﹣1，4），PQ=2，则点Q的坐标为（﹣3，4）．【考点】点的坐标．【分析】根据平行于x轴的点的纵坐标相等求出点Q的纵坐标，再根据PQ的长度分两种情况求出横坐标，然后写出即可．【解答】解：∵线段PQ∥x轴，点P（﹣1，4），∴点Q的纵坐标为4，∵PQ=2，∴点Q在点P的左边时，点Q的横坐标为﹣1﹣2=﹣3，此时点Q的坐标为（﹣3，4），点Q在点P的右边时，点Q的横坐标为﹣1+2=1，∵线段PQ在第二象限，∴点Q的横坐标是负数，∴此种情况不符合题意，所以，点Q的坐标为（﹣3，4）．故答案为：（﹣3，4）．17．如图，数轴上A，B两点表示的数分别是1和，点A关于点B的对称点是点C，则点C所表示的数是．【考点】实数与数轴．【分析】由题意可得AB=BC，列式计算即可．【解答】解：点C所表示的数是=2﹣1，故答案为2﹣1．18．若关于x的不等式﹣mx﹣n＞0的解集是x，则关于x的不等式（m﹣n）x＞n+m的解集是x＜．【考点】解一元一次不等式．【分析】先解关于x的不等式﹣mx﹣n＞0，得出解集，再根据不等式的解集是x，从而得出m与n的关系，解得即可．【解答】解：∵关于x的不等式﹣mx﹣n＞0的解集是x，∴m＜0，﹣=，解得m=﹣5n，∴n＞0，∴解关于x的不等式（m﹣n）x＞n+m得，x＜，∴x＜=，故答案为x＜．三、解答题（共10小题，满分64分）19．计算：（1）+﹣；（2）﹣12+﹣﹣||【考点】实数的运算．【分析】（1）原式利用立方根，平方根定义计算即可得到结果；（2）原式利用平方根、立方根定义，以及绝对值的代数意义化简，计算即可得到结果．【解答】解：（1）原式=﹣3+3﹣=﹣；（2）原式=﹣1+0.5﹣﹣=﹣．20．解方程组（1）（2）．【考点】解二元一次方程组．【分析】（1）根据代入消元法，可得方程组的解；（2）根据代入消元法，可得方程组的解．【解答】解：（1）由①，得y=3x﹣5．③把③代入②，得5x+2（3x﹣5）=15．解这个方程，得x=．把x=代入③，得y=．所以原方程的解为．（2）原方程组整理得：．由②，得x=5y﹣8，③把③代入①，得5（5y﹣8）﹣11y=﹣12．解这个方程，得y=2．把y=2代入③，得x=2．这个方程组的解为．21．解不等式，并把解集表示在数轴上．．【考点】解一元一次不等式；在数轴上表示不等式的解集．【分析】去原不等式去分母变形为4x﹣2﹣（9x+2）≤6，解该不等式得出x≥﹣2，将其在数轴上表示出来即可．【解答】解：去分母得：4x﹣2﹣（9x+2）≤6，解得：x≥﹣2．把解集表示在数轴上如图所示．22．若关于x、y的二元一次方程组的解满足x+y≤1，求k的取值范围．【考点】二元一次方程组的解．【分析】先把方程组的两个方程相加求出x+y=k﹣1，再解不等式即可解答．【解答】解：由方程组解x+y=k﹣1，由x+y≤1，得：k﹣1≤1，解得：k≤2．答：k的取值范围是k≤2．23．已知a，b是实数，且b=，求的值．【考点】立方根；二次根式有意义的条件．【分析】根据负数没有算术平方根求出a的值，进而确定出b的值，代入原式计算即可得到结果．【解答】解：由2a﹣1≥0，2a﹣1≤0得a=，∴b=，则原式==2．24．已知：如图，在△ABC中，BD⊥AC于点D，E为BC上一点，过E点作EF⊥AC，垂足为F，过点D作DH∥BC交AB于点H．（1）请你补全图形．（2）求证：∠BDH=∠CEF．【考点】平行线的判定与性质；垂线；作图—基本作图．【分析】（1）根据题意，完成几何图形；（2）根据垂直的定义和平行线的判定得到BD∥EF，则∠CEF=∠CBD，再由DH∥BC得到∠BDH=∠CBD，于是有∠BDH=∠CEF．【解答】解：（1）如图，（2）证明：∵BD⊥AC，EF⊥AC，∴BD∥EF，∴∠CEF=∠CBD，∵DH∥BC，∴∠BDH=∠CBD，∴∠BDH=∠CEF．25．如图，三角形ABC中任一点P（m，n）经平移后对应点为P1（m+4，n﹣3），将三角形ABC作同样的平移得到三角形A1B1C1．（1）直接写出A1、C1的坐标分别为A1（5，1），C1（3，﹣4）；（2）在图中画出△A1B1C1；（3）请直接写出△A1B1C1的面积是8．【考点】作图-平移变换．【分析】（1）根据点P平移后的点可得，△ABC先向右平移4个单位，然后向下平移3个单位得到△A1B1C1，根据点A、C的坐标，写出点A1，C1的坐标；（2）根据坐标系的特点，将点A、B、C先向右平移4个单位，然后向下平移3个单位，然后顺次连接；（3）用△ABC所在的矩形的面积减去三个小三角形的面积．【解答】解：（1）由图可得，A1（5，1），C1（3，﹣4）；（2）所作图形如图所示：（3）S△A1B1C1=5×4﹣×2×4﹣×2×3﹣×2×5=20﹣4﹣3﹣5=8．故答案为：（5，1），（3，﹣4）；8．26．若关于x的不等式组恰有三个整数解，求实数a的取值范围．【考点】一元一次不等式组的整数解．【分析】首先利用a表示出不等式组的解集，根据解集中的整数恰好有3个，即可确定a的值．【解答】解：解+＞0，得x＞﹣；解3x+5a+4＞4（x+1）+3a，得x＜2a，∴不等式组的解集为﹣＜x＜2a．∵关于x的不等式组恰有三个整数解，∴2＜2a≤3，解得1＜a≤．27．某体育用品专卖店销售7个篮球和9个排球的总利润为355元，销售10个篮球和20个排球的总利润为650元．（1）求每个篮球和每个排球的销售利润；（2）已知每个篮球的进价为200元，每个排球的进价为160元，若该专卖店计划用不超过17400元购进篮球和排球共100个，且要求篮球数量不少于排球数量的一半，请你为专卖店设计符合要求的进货方案．【考点】一元一次不等式的应用；二元一次方程组的应用．【分析】（1）设每个篮球和每个排球的销售利润分别为x元，y元，根据题意得到方程组；即可解得结果；（2）设购进篮球m个，排球个，根据题意得不等式组即可得到结果．【解答】解：（1）设每个篮球和每个排球的销售利润分别为x元，y元，根据题意得：，解得：，答：每个篮球和每个排球的销售利润分别为25元，20元；（2）设购进篮球m个，排球个，根据题意得：，解得：≤m≤35，∴m=34或m=35，∴购进篮球34个排球66个，或购进篮球35个排球65个两种购买方案．28．在平面直角坐标系中，O为坐标原点，点A的坐标为（a，﹣a），点B坐标为（b，c），a、b、c满足．（1）若a没有平方根，判断点A在第几象限并说明理由；（2）若点A到y轴的距离是点B到y轴距离的3倍，求点B的坐标；（3）点D的坐标为（2，﹣4），△OAB的面积是△DAB面积的2倍，求点B的坐标．【考点】坐标与图形性质；平方根；解三元一次方程组；三角形的面积．【分析】（1）根据负数没有平方根进行解答即可；（2）解方程组得出关于a的代数式，分两种情况解答即可；（3）根据AB坐标判断线段AB平行于x轴，进而解答即可．【解答】解：（1）∵a没有平方根，∴a＜0，∴﹣a＞0，∴点A（a，﹣a）在第二象限；（2）由方程组，用a表示b，c得b=﹣a+4，c=﹣a，再利用点A到y轴的距离是点B到y轴距离的3倍得：|﹣a|=3|﹣a+4|，可以分两种情况分析：①﹣a=3（﹣a+4），解之，得a=6，所以b=﹣2，c=﹣6；②﹣a=﹣3（﹣a+4），解之，得a=3，所以b=1，c=﹣3；综上，B（﹣2，﹣6）或B（1，﹣3）；（3）利用A（a，﹣a）和B（﹣a+4，﹣a），可以判断线段AB平行于x轴．由点D的坐标（2，﹣4），△OAB的面积是△DAB面积的2倍，可以判断点A和点B在x轴的下方，则a＞0，AB•a=2×AB•|a﹣4|，解得，a=或a=8，所以，B（，）或B（﹣4，﹣8）．2016年8月27日。
2015-2016学年七年级英语自主学习能力测试题1及参考答案
2015-2016学年七年级英语自主学习能力测试题1 说明：本试卷共7页，满分100分，考试时间90分钟。
请将答案填写在答题纸上。
听力部分（满分20分）Ⅰ. 听对话回答问题。
（10分）本部分共有10道小题，每小题你将听到一段对话，每段对话听两遍。
在听每段对话前，你将有5秒钟的时间阅读题目；听完后，你将有5秒钟的时间选择你认为最合适的备选答案。
1. What are they talking about?2. What is the boy doing?3. What d oes the boy’s mother do after supper?4. What are they talking about?5. What are they going to buy f or their teachers?A. Some cups.B. Some cards.C. Some cakes.6. How does the girl usually go to school every day?A. By bike.B. On foot.C. By bus.7. What does the woman mean?A. There isn’t an English word for the food.B. She doesn’t like the food.C. She doesn’t know English.8. Where are they probably(可能) talking?A. In a supermarket.B. At home.C. In a restaurant.9. What colour is Peter’s mask?A. It’s blue.B. It’s yellow.C. It’s green.10. W hat does the boy do when he is not happy?A. Plays chess.B. Goes shopping.C. Draws.Ⅱ. 听对话和短文回答问题。
【初中英语】江苏省南通市八一中学2015-2016学年七年级上学期第三次阶段测试英语试题 人教版
七年级第三次阶段测试卷英语时间：100分钟分值：120分一、单项选择（15分）( )1. I’m busy in the evening, because there _______ lots of work to do.A. hasB. haveC. isD. are( )2. –Was your cousin born _______ the evening _______ 31st of January? –Yes!A. in; atB. at; ofC. on; ofD. of; in( )3. –New Yea r’s Day __________. What do you think you can buy your grandpa?–A pair of sports shoes. They are comfortable.A. comes; toB. is coming; forC. will come; ofD. is coming; to ( )4. It’s late now, but I still have homework .A. too much; too muchB. much too; too muchC. too much; much tooD. much too; much too( )5. – What can I do for you? –I’d like to buy two of .A. kilos; potatosB. kiloes; potatoesC. kiloes; potatosD. kilos; potatoes( )6. –Do you see my glasses? I can’t see well without them. –this pair of glasses ?A. Is; yourB. Is; yoursC. Are; youD. Are; yours( )7. He is in good , because his lifestyle is very .A. health; healthyB. healthy; healthyC. health; healthD. healthy; health( )8. –Sandy, do you tomorrow’s party? –Yes. Everything is OK.A. come fromB. try onC. get ready forD. have fun( )9. –do you watch TV every week? –Less than five hours.A. How longB. How oftenC. How muchD. How many ( )10. –Are you good at maths? –Yes, I am interested in it.A. learnB. to learnC. learnsD. learning( )11. –I’m hungry .Will you please give me bread? –Of course.A. aB. anC. someD. any( )12. –Where can I buy a football? –Maybe you should go to the .A. clothes shopB. flower shopC. shoe shopD. sports shop ( )13. –This dress is . Can I ? –Sure. Here you are.A. enough cheap; try on itB. cheap enough; try on itC. enough cheap; try it onD. cheap enough; try it on( )14. –New Yea r’s Day __________. What do you think you can buy your grandpa?–A pair of sports shoes. They are comfortable.A. comes; toB. is coming; forC. will come; ofD. is coming; to ( )15. –Mum, I’d like to play computer games this afternoon.–_________. But please do your homework first.A. That’s right.B. All right.C. That’s all right.D. All the best.二、完形填空（15分）Most of 16 like Christmas. On Christmas Eve, 17 24th——the night 18 Christmas Day, children are very happy. They put their stockings(长筒袜)at the end of their beds before they 19 . They want Father Christmas(圣诞老人) 20 them some presents.Parents tell children that Father Christmas is a very 21 man. He arrives on Christmas Eve. He lands on the top of the kitchen and comes 22 the chimney(烟囱)in the fireplace. He 23 children a lot of presents.On Christmas Day, children often wake up very early 24 . They can not wait (迫不及待)to 25 their stockings and they are 26 to see so many lovely presents. Then they 27 and say. “ Merry Christmas!” to their parents. Then the family usually 28 a big breakfast. They29 the whole day playing with the new toys and 30 their friends. They greet each other witha hug(拥抱)and say, “ Merry Christmas!”( )16. A. I B. we C. me D. us( )17. A. November B. December C. October D. September ( )18. A. after B. on C. before D. at( )19. A. go to bed B. have supper C. get up D. have dinner ( )20. A. to show B. to buy C. to give D. to make ( )21. A. young B. kind C. boring D. bad( )22. A. in B. up C. through D. from ( )23. A. brings B. does C. makes D. takes ( )24. A. in the afternoon B. in the evening C. in the morning D. at night ( )25. A. close B. open C. shut D. use( )26. A. excited B. busy C. difficult D. interesting ( )27. A. wake up B. get up C. phone D. find( )28. A. have B. has C. eats D. will have ( )29. A. let B. spend C. take D. cost ( )30. A. visiting B. playing C. watching D. staying三、阅读理解（30分）(A)David is a twelve-year-old boy. He is tall and strong with short blond (金色的) hair. He likes sports and reading. Every week David gets ten dollars from his parents. This money is his weekly (每周的) pocket money. It’s not a present. David must work for the family to get the money.On Monday, David must sweep the floor and walk the dog after he finishes (完成) his homework. On Tuesday, David must take out the rubbish (垃圾) bags in the morning and clean the garden after school. On Wednesday, he should wash the dishes and clean the kitchen after dinner. On Thursday, he helps his mother do some cooking. Sometimes he has to go to the supermarket to buy some food and drinks. On Friday, he should water (给…… 浇水) the flowers in the garden after school. On Saturday and Sunday, David doesn’t need to do the housework, so he goes to the cinema with his classmates or does some shopping in the shopping mall.David wants to buy a new football, but he doesn’t have enough money. He is looking forward to (期盼) getting more pocket money.( ) 31. From the passage, we know David ________.A. is short with brown hairB. likes sports and musicC. usually works for his familyD. gets a present every week( ) 32. David has to work for ________ days a week to get ten dollars.A. fourB. fiveC. sixD. seven( ) 33. David sweeps the floor after ________.A. cleaning the gardenB. finishing his homeworkC. watering the flowersD. shopping in the supermarket( ) 34. David ________ on Wednesday.A. takes out the rubbish bagsB. buys some food and drinksC. washes the dishes and cleans the kitchenD. goes to the cinema with his classmates( ) 35. Which of the following is TRUE according to the passage?A. David makes money by sending letters.B. David never cooks food for his family.C. David wants to have more money to buy a football.D. David always goes shopping after school.(B)Winter Sale!Winter is coming. So we are having a big and end-of-autumn sale. Look at the prices!A blouse(女式衬衫)：$5 A coat:$20 A silk(丝绸)skirt: $28A pair of trainers(运动鞋):$30 A pair of jeans:$30Will you come to Reborn Fashion Shop on the 2nd floor of New Century Shopping Mall from Friday to Sunday?Cash Back!Spend twenty dollars in our shop, we will（将）give you five dollars back. Spend 40 dollars, and you will get 10 dollars back.Remember: only at weekendsYou are welcome to Happy Times Doll Shop on the first floor of New Century Shopping Mall.Closing Down Sale!Come to our shop next Monday. There is a discount（打折）on every kind of chocolate. And wewill give you a big box of sweets for free(免费) if you spend more than 20 dollars in our shop. So come to Sweetheart Chocolate Shop on the first floor of New Century Shopping Mall.( )36. How many shops are mentioned in this advertisement(广告)?A. Two.B. Three.C. Four.D. Six.( )37. What is the price of a silk skirt in Reborn Fashion Shop?A. $5.B. $20.C. $28.D. $30.( )38. If you spend 20 dollars in Happy Times Doll Shop, how much money will you get back?A. 5 dollars.B. 15 dollars.C. 20 dollars.D. 40 dollars. ( )39. If you want to buy clothes at a lower(更低的)price, where should(应该)you go?A. Reborn Fashion Shop.B. Happy Times Doll Shop.C. Sweetheart Chocolate Shop.D. The first floor of New Century Shopping Mall. ( )40. What does the word "cash" mean in Chinese?A. 商品B. 发票C. 现金D. 赠品(C)Do your parents ever say,“Act like a lady.”or“Be a gentleman.”to you? But in the eyes of today’s teenagers, what should a lady or a gentleman be like? Let’s take a look.What is a gentleman? The girls have their ideas:Huang Xiaoyu of Guizhou: A gentleman doesn’t often get angry. He wants others to be well and happy. He is always ready to help. There is a boy in my class and I think he is a gentleman. If I don’t do well in the English test, he will say,“You will do better next time.”That makes me feel happy.Chen Tingting of Shenzhen: A gentleman always says,“Ladies first.”When students clean up the classroom, he does the heavy work. He lets girls go into rooms first. There are no gentlemen in my class. When there is something to eat, the boys in my class always get them before girls!What is a lady？Boys tell us what they think a lady is:Wu Yifan of Dalian: A lady is quiet and kind, but she’s not shy(害羞) and she can talk about her ideas in front of others. To me, Jiang Yiyan, a film star, is a lady. She is pretty and kind. She does a lot for others.Wang Lichao of Tianjin: A lady is not just beautiful but clever. She never says bad words. She is quiet and kind to others. I don’t think there is a lady in my class. Most of the girls are wild beauties, I think.( )41. A gentleman doesn’t ___________.A. care about others’ feelingB. always say“ladies first”C. do the heavy workD. get angry easily( )42. What does Huang Xiaoyu think a gentleman will do if she doesn’t do well in the English exam?A. He will say“You’ll do better next time”.B. He will get happy.C. He will say“Don’t be so careless next time”.D. He will laugh at her.( )43. Why does Wu Yifan think Jiang Yiyan is a lady?A. Because she is quiet.B. Because she likes expressing(表现) herselfC. Because she is pretty and kind.D. Because she is very shy.( )44. What does the underlined words“wild beauties”mean in this passage?A. Beautiful and kind girls.B. Pretty-looking but rude(粗鲁的) girls.C. Gentle and shy girls.D. Clever girls.( )45. Where is the passage from?A. A story bookB. A picture book.C. A science book.D. A magazine.四、词汇运用（15分）A、根据中英文提示或句意完成句子。
江苏省南通市实验中学七年级政治下学期期中试题 苏教版
江苏省南通市实验中学2015-2016学年七年级政治下学期期中试题第Ⅰ卷（选择题共30分）第Ⅰ卷共15小题，每小题2分，共30分。
每小题给出的四个选项中只有一个．．．．选项是最符合题意的。
答案请按要求填涂在答题卡上。
1.以下关于生命的说法中，正确的是（▲）①每个人的生命都是独一无二的，都有自己独特的风格和特点②要珍爱自己的生命和别人的生命③地球上的生命是人类社会长期发展的产物④要热爱大自然这个生命的家园，保护环境，维护生态平衡A.①②③④B.①②④C.①②③D. ②③④2.黑格尔说过，自杀是一种“自卑的勇敢”，是一种不负责任的愚蠢行为。
这句话告诉我们（▲）①自杀都是因为自卑造成的②生命可贵，我们应该热爱生命③自杀的人都是勇敢的人④我们要对自己的行为负责任A.①②③④B. ②③C. ②④D.③④3.属于对生命造成伤害，破坏环境的行为的有（▲）①随手乱扔废电池②使用一次性塑料袋③干扰动物的生活④使用布袋A.①②③④B.①②③C.①③④D.②③④4.“人活着不应该追求生命的长度，而应该追求生命的内涵，活着的最高境界就是把他的整个生命奉献给全人类。
”这话说明了生命的意义在于（▲）A.长短B.质量C.享受D.索取5.实现人生意义，追求生命的价值，正确的做法是（▲）①干好自己的本职工作②要从现在做起③从日常点滴做起④等长大后再考虑A.②③④B.①②④C.①③④D.①②③6.处于青春期的学生，认为自己了不起，家长无知、无情。
这体现了青少年的青春期心理特点（▲）①自我意识②独立意识③成人感④闭锁心理A.①②③B.①②④C.②③④D.①②③④7.进入青春期，青少年机体发育增快，生理不断成熟。
下列属于这种变化的有（▲）①性机能发育成熟②身体外形急剧变化③体内机能迅速健全④有时产生焦虑、烦躁、抑郁、恐惧等情绪A.①②③B.②③④C.①②④ D．①③④8．著名作家柳青说：“人生的道路虽然漫长，但紧要处常常只有几步，特别是当人年轻的时候。
福建省晋江市平山中学2015_2016学年七年级英语下学期期中试题仁爱版
福建省晋江市平山中学2015-2016学年七年级英语下学期期中试题（考试时间:90分钟，满分:100分）注意：请将试卷答案填涂在答题卡上，写在试卷上无效。
书写要规范、美观。
第一部分听力（20分）第一节：听句子，（两遍）：从A、B、C三幅图中选出与句子意思相符的图。
（5分）第二节：听对话（两遍）：选出最佳选项。
（10分）听第一段对话，回答第6小题。
( )6. Where does the woman want to go?A. The bookstore.B. The post office.C. The station.听第二段对话，回答第7小题。
( )7. What’s Jack doing?A. He is flying a kite.B. He’s taking a photo.C. He’s riding a bike. 听第三段对话，回答第8小题。
( )8. H ow can the woman get to the bus stop?A.Turn right twice.B.First turn left and then turn right.C.First turn right and then turn left.听第四段对话，回答第9、10小题。
( )9.What is the boy doing?A. He is reading.B. He is writing a letter.C. He is cleaning the blackboard.( )10.How often does the boy write to his parents?A. Once a week.B. Once a month.C. Once a year.听第五段对话，回答第11、12小题。
( )11.Where is the sofa?A. On the desk.B. Under the desk.C. Near the desk.( )12.Is there a lamp on the man’s desk?A. Yes, there is.B. No, there isn’t.C. We don’t know.听第六段对话，回答第13、14、15小题。