江苏省海门市东灶港初级中学2012-2013学年八年级上学期期末考试思品

江苏省海门市东灶港初级中学2013-2014学年七年级英语上学期期中试题(请把答案写在答题卷上)一、听力部分（20分）A. 根据所听的内容，选择正确图片，每段对话读两遍。

1. What is Jim’s uncle?2. What are the boys doing?A. B. C.3.What’s this ?A. B. C.4.. Amy, what’s in the picture?A. B. C.B. 根据所听的内容，选择正确答案。

5. Is Millie swimming?A. Yes, she is.B. No, she isn’t.C. Sorry, I don’t know.6. What’s her telephone number?A.84351978B. 84561968C. 835619587. What colour is Lily’s blouse?A. White.B. Red.C. Black.8. How many students are there in Class One?A. 35.B. 43.C. 42.9. Who has a yellow ruler?A. Tom.B. Mike.C. David.10. What class is Li Lei in?A. Class 3.B. Class 4.C. Class 5.C. 听对话和短文，选择正确答案. 听两遍。

听一段对话，回答第11-12小题。

11. What color is the kite?A. It’s in the pi cture.B. It’s Nick’s.C. It’s yellow.12. What does Nick often do at the weekend?A. He does his homework.B. He flies a kite.C. He cleans the wall.13. A. A teacher B. A policeman C. A doctor14. A. in her car B. by bus C. on foot15. A. dancing B. cooking C. singingD. 听第二篇短文短文，根据短文内容回答16～20小题。

江苏省海门市东灶港初级中学2014届九年级英语上学期期中试题（总分：120分）（请将答案写在答题纸上）第Ⅰ卷（选择题共60分）一. 选择题（本题共15小题；每小题1分，满分15分）1. We had _______ 7-day holiday during the National holidays, but some of usfelt unhappy because of _________heavy traffic on the highways.A. an, theB. a, theC. a, aD. an, a2.—What do you think of Jane?—She is to be a good teacher.A. patient enoughB. too patientC. enough patientD. so patient3. My close friend felt unhappy, I wanted to send her a(an) _______ card to cheerher up, but there was ______ left in the shop.A. red, anyoneB. blue, no oneC. orange, noneD. orange, nothing.4. After all of us finished our homework, the teacher told us _________at once.A. to hand it inB. hand them inC. to hand them outD. hand it out5. How careless it was _______ Millie to make _______ many silly mistakes inthe Math exam!A. for; suchB. of; soC. for; soD. of; such6. The old man feels very _________because all his children have gone abroad andhis wife _________ for almost two years.A. alone, has diedB. lonely, diedC. lonely, has been deadD. alone, has been dead7. Few men________ shopping with their wives ________ at home to watch TV．A. prefer going，to stayingB. prefer to go，to shoppingC. would rather to go，than stayD. would rather going，than staying8. Why not ______ your teacher for advice when you don’t know ______ theproblems?A. ask; what to do withB. to ask; how to deal withC. ask; what to deal withD. to ask; how to do with9. The fat boy always worries about _______ enough food _______ every day. Howfunny!A. having not, eatB. having not, to eatC. not having, eatD. not having, to eat10. None of us knew what had happened ___ they told us about it.A. thoughB. whenC. afterD. until11. You’d better not read today’s newspaper because there is _____ .A. something importantB. anything newC. important thingD. nothing special12. It’s raining so__________ that we can _________ go out now.A. hard; hardlyB. hard; hardC. hardly; hardlyD. hardly; hard13. He is a clever boy. His __________ are of great __________ to us.A. advice; valueB. suggestions; valueC. advice; valuableD. suggestion; valuable14. A good teacher should be strict _______the students ______their study.A. with; withB. in; inC. in; withD. with; in15. -----Would you mind my_______ here?------- ________. Let me take my bag away.A. to sit; Better notB. sitting; Better notC. to sit; Not at allD. sitting; Not at all二、完形填空（本题共15小题；每小题1分，满分15分）On my first job, I worked as a sports editor for a small newspaper. I never got a letter from my readers, so I was 16 that there was an envelope on my desk one morning. From the 17 , I could see it was from a most popular newspaper.When I opened it, I found a note and it read, “You did a good job. Go on!”The note was 18 by Mr John, a famous sports editor. As I was a green hand （新手）, his words made me 19 .After that, I kept the note in my desk drawer. Whenever I doubted 20 I had the ability to be a good editor, I would read John's note and become 21 again.Later, when I made friends with Mr John, the note writer, I learned that he often wrote notes to 22 young people in many fields. “When I make 23 feel happy,” he told me, “I feel happy, too.”24 , why are there few note writers like John in our life? In my opinion, many people are afraid that they cannot be well____25__. Also, writing takes more time and it is 26 to pick up the phone. The problem with phone callsis that they cannot 27 a long time, but a note is a good way of record and our words can be read 28 .So, when you find some people around you need 29 , please write a note of encouragement to bring them more confidence. Maybe, you are not sure what will 30 ,but remember Mr John's words—making others feel happy makes youhappy, too.16. A. certain B. sure C. surprised D. frightened17. A. calendar B. envelope C. book D. photo18. A. signed B. picked C. copied D. practised19. A. unhappy B. sleepy C. excited D. sad20. A. why B. that C. what D. whether21. A. serious B. confident C. strict D. humorous22. A. expect B. describe C. introduce D. encourage23. A. other B. the other C. others D. the others24. A. But B. However C. Therefore D. Actually25. A. understood B. understand C. show D. shown26. A. stronger B. weaker C. harder D. easier27. A. wait B. last C. stop D. rest28. A. once B. only once C. more than once D. less than once29. A. thanks B. truth C. trouble D. help30. A. happen B. matter C. turn D. hold三．阅读理解(本题共15小题；每小题2分，满分30分)AA popular shopping bag has been seen on the arm of some of the world’s most beautiful women. It sells at an official price of ￡5, but as much as ￡400 online. The bag called “I’m Not a Plastic Bag”is made of cotton. It is so “hot” that now everyone wants to get one. It’s fashionable, and it’s green!Supporters see the bag as a way to move away from throwaway(一次性的) plastic bags that are given away in large numbers by supermarkets every year.When the bags were first sold, about 500 people waited in line to buy one. So far, 20,000 of the popular bags have been sold at the second largest supermarket in Great Britain. It is one of the ways to encourage shoppers to use the reusable(可再利用的) bags, rather than the plastic ones.The bag has also become a must-have for many famous people who want to be fashionable, and at the same time care about the environment.The designer of the bag has been asked to develop the bag by the “We Are What We Do” group. The group believes that each person in Great Britain uses about 167 plastic bags every year. It says that small lifestyle changes can have a strong effect on reducing waste and the environmental pollution. It also says that everyone should try his best to protect the earth from being polluted.31. We can buy the popular bag at a price of ￡5 __________.A. on the InternetB. from the shops all over the worldC. at the desig ner’s homeD. at the 2nd largest supermarket inBritain32. According to the passage, the “We Are What We Do”group most probably means___________.A. those who want to do something by themselvesB. those who design the new bagsC. an organization that protects the environmentD. a business that sells bags33. The purpose of designing the popular bags is __________.A. to make moneyB. to help famous peopleC. to make women fashionableD. to reduce the environmental pollutionBWhen I was about 12, I had an enemy (敌人), a girl who liked to point out my shortcomings (缺点). Week by week her list grew: I was very thin; I wasn’ta good student; I talked too much; I was too proud (骄傲), and so on. I triedto hear all these as long as I could. At last, I became very angry. I ran to my father with tears in my eyes.He listened to me quietly. Then he asked, “Are the thing she said true or not? Janet, didn’t you ever think about what you are really like? Well, you now have that girl’s opinion. Go and make a list of everyth ing she said and mark the points that are true. Pay no attention to the other things she said.”I did as he told me. To my great surprise, I discovered that about half thethings were true. Some of them I couldn’t change (like being very thin), buta good number I could --- and suddenly I wanted to change. For the first timeI got a very clear picture of myself.I brought the list back to Daddy. He wouldn’t like to take it. “That isjust for you,” he said, “You know better than anyone else the tru th about yourself. But you have to learn to listen, not just close your ears in anger and feeling hurt. When something said about you is true, you will find it will be of help to you. Our world is full of people who think they know your duty.Don’t shut yo ur ears. Listen to them all, but hear the truth and do the right thing.”Daddy’s advice has returned to me at many important periods. In my life,I have never had a better piece of advice.34. Which do you think would be the best title (标题) for this passage?A. Not An Enemy, But the Best FriendB. The Best Advice I’ve Ever HadC. My FatherD. My Childhood35. Why did the writer’s father listen to her quietly? Because__________.A. he believed that most of what his daughter’s “enemy” said was true.B. he had been so angry with his daughter’s shortcomings that he wanted toshow this by keeping quiet for some timeC. he knew that his daughter would not listen to him at that momentD. he wasn’t q uite sure which girl was telling the truth36. What did the father do after he had heard his daughter’s complaint?A. He told her not to pay any attention to what her “enemy” had said.B. He criticized(批评) her and told her to overcome (克服) her shortcomings.C. He told her to write down all that her “enemy” had said about her andpay attention only to the things that were true.D. He wouldn’t like to take the list and have a look at it.37. What does “I got a very clear picture of myself” mean?A. I had my picture taken and this time it was a very clear one.B. I asked someone to draw a very clear picture of myself.C. The picture I got this time was clearer than those I had got before.D. I came to know myself very clearly this time.CThere are some very good things about open education. This way of teaching allows the students to grow as people, and to develop their own interests in many subjects. Open education allows students to be responsible（负责任的） for their own education, as they are responsible for what they do in life. Some students do badly in a traditional classroom. The open classroom may allow them to enjoy learning. Some students will be happier in an open education school.They will not worry about grades or rules. For students who worry about these things a lot, it is a good idea to be in an open classroom.But many students will not do well in an open classroom. For some students, there are too few rules. These students will do little in school. They will not make good use of open education. Because open education is so different from traditional education, these students may have a problem getting used to making so many choices. For many students it is important to have some rules in the classroom. They worry about the rules even when there are no rules. Even a few rules will help this kind of students. The last point about open education is that some traditional teachers do not like it. Many teachers do not believe in open education. Teachers who want to have an open classroom may have many problems at their schools.38. Open education allows the students to_______.A. be late for schoolB. be responsible for their parentsC. develop their own interestsD. discover subjects outside class39. Open education may be a good idea for the students who______.A. enjoy traditional learningB. worry about gradesC. do well in a traditional classroomD. are responsible for what they do40. Some students will do little in an open classroom because______.A. there are too few rulesB. they hate activitiesC. open education is meaninglessD. they worry about the rules41. Which of the following is NOT mentioned（提到） in the passage?A. Some traditional teachers do not like open education.B. Many teachers do not believe in open education.C. Teachers may have problems in open classrooms.D. Teachers' feeling and attitudes are important to students.DWe spent a day in the country and picked a lot of flowers. Our car was full of flowers inside! On the way home we had to stop at traffic lights, and there my wife saw the bookshelf.It stood outside a furniture(家具)shop. "Buy it," she said at once. "We'll carry it home on the roof-rack(车顶架. I've always wanted one like that."What could I do? Ten minutes later I was twenty dollars poorer, and the bookshelf was tied onto the roof rack. It was tall and narrow, quite heavy too.As it was getting darker, I drove slowly. Other drivers seemed more polite than usual that evening. The police even stopped traffic to let us through. Carrying furniture was a good idea.After a time my wife said, "There's a long line of cars behind. Why don't they overtake(超车)?"Just at that time a police car did overtake. The two officers(警官)inside looked at us seriously when they went past. But then, with a kind smile they asked us to follow their car through the busy traffic. The police car stopped at our village church(教堂). One of the officers came to me."Right, sir," he said. "Do you need any more help now?"I didn't quite understand. "Thanks, officer," I said. "You've been very kind.I live just down the road."He was looking at our things: first at the flowers, then at the bookshelf. "Well, well," he said and laughed. "It's a bookshelf you've got there! We thoughtit was-er, something else."My wife began to laugh. Suddenly I understood why the police drove here.I smiled at the officer. "Yes, it's a bookshelf, but thanks again." I drove homeas fast as I could.42. From the story we know that______.A. The writer was poor and didn't buy the bookshelf for his wifeB. The writer's wife didn't like the bookshelf at allC. The writer was very angry with his wifeD. The writer was not very glad to buy the bookshelf for his wife43. What made the writer think that carrying furniture was "a good idea"?A. He could drive slowly and it was safe.B. Other drivers would let him go first.C. His wife could use a new bookshelf.D. He could save a lot of money and time.44. Why were the police and other drivers so kind to the writer?A. Because they thought the writer liked studying very much and needed a bookshelf.B. Because they didn't think it was polite to overtake a car with a bookshelfon it.C. Because they thought somebody in the writer's family had died and he needed help.D. Because they thought it was dangerous to carry a bookshelf on a car.45. When did the officers begin to realize(意识)they had made a mistake?A. Before they arrived at the church.B. Before they overtook the writer's car.C. After one of them looked at the flowers and the bookshelf carefully at the church.D. After the writer's family left the church.第Ⅱ卷（非选择题共60分）四、词汇（本题共15小题；每小题1分，满分15分)A.请根据句意或括号中的中文提示、英文释义，写出句中所缺单词，使句子通顺。

江苏省海门市东灶港初级中学2013-2014学年八年级生物上学期期中试题新人教版说明：1.本试卷共5页，包括试题(第1～4页)和答题纸(第5页)二部分。

本次考试满分为50分，考试用时50分钟。

2.试题答案请写在第．．．．．．．．5．页答题纸的指定位置．．．．．．．．．．。

．．．．．．．．．，其他位置作答一律无效3.考试结束后，只交答题纸。

一．请你选一选：本题包括25小题，每小题只有一个选项最符合题意。

每小题1分，共25分。

请将正确答案的字母填在答题纸上相应的表格内。

1．中医常通过“切脉”来推知体内各器官的健康状况，“切脉”常见的部位是…………………………………………………………………………（）A. 桡动脉B.肱动脉C.颈动脉D. 股动脉2.在人体内数量最大、分布最广的血管是？…………………………….（）A．动脉 B．静脉 C．毛细血管 D．主动脉3.与人类的“谈虎色变”有直接关系的，并且是人类所特有的神经中枢是：……………………………………………………………………….（）A.视觉中枢B.听觉中枢C.语言中枢D.运动中枢4.你知道现在有人为提高视力而做的激光手术，是将眼球的什么结构切薄？………………………………………………………………………（）A.角膜B.巩膜C. 虹膜D.脉络膜5. 下列各项中，不是毛细血管适于物质交换的特点的是……………….（）A.数量大，分布广B.管壁非常薄C.血流速度慢D.管腔小，弹性小6．在视觉的形成过程中，物象和视觉的形成部位分别是…………….…（）A．视网膜、大脑皮质 B．大脑皮质、视网膜C．视网膜、视神经 D．视神经、大脑皮质7．下列关于内分泌腺的叙述中，错误的是………………………………（）Ａ.有导管Ｂ.无导管Ｃ.具有调节作用Ｄ.分泌的激素直接进入腺体内的毛细血管8．患急性阑尾炎的病人，其血常规化验一般表现为…………………….（）A．红细胞增多 B．白细胞增多 C．血小板减少 D．白细胞减少9．某人的尿量比正常情况下增加数倍，发生病变的部位可能是………（）A．肾小球 B．肾小体 C．肾小管 D．肾小囊10．听觉形成的正确途径是……………………………………………..（）A.声波→鼓膜→耳蜗内听觉感受器→听神经→听小骨→大脑B.声波→鼓膜→听小骨→耳蜗内听觉感受器→听神经→大脑C.声波→鼓膜→听神经→大脑→耳蜗内听觉感受器D.声波→鼓膜→耳蜗内听觉感受器→听小骨→听神经→大脑11．体格检查时，医生用小木槌扣击膝盖下韧带，会使小腿前伸，发生膝跳反射，受检查者的这种行为受神经系统哪部分控制…………………………（）A.脊髓B.大脑C.小脑D.脑干12．人体排出尿液的作用是………………………………………………….（）A．排出新陈代谢产生的废物 B.调节体内水分和无机盐含量C.维持组织细胞的正常生理功能D.以上都是13．神经系统中有“生命中枢”之称的结构是…………………………….（）A．大脑 B．脑干 C．小脑 D．脊髓14. 在人体的肾脏结构中，出入肾小球的血管…………………………….（）A．均为小动脉 B．入球为小动脉，出球为小静脉C．均为小静脉 D．入球为小静脉，出球为小动脉15.植物人是指只有呼吸和心跳而没有其他活动的病人，他肯定没有受到损伤的部位是……………………………………………………………………（）A.大脑皮层B. 小脑C.脑干D. 大脑16.下列成年人的血压可被认为是高血压的是……………………………（）A. 11/7千帕B. 20/13千帕C. 13/10千帕D. 16/10.7千帕17.现有一只新鲜的猪心脏，最简单的判别它的左右的方法是：……………………………………………（）A.手捏心室壁B.将心脏切开C. 手捏心房壁D.向心脏内灌水18．组成中枢神经系统的是……………………………………………………（）A.脑和脊髓B.脑和脑神经C.脊髓和脊神经D.脑神经和脊神经19．下列血管输送的是动脉血的是……………………………………………（）A.上腔静脉B.下腔静脉C.肺静脉D.肺动脉20．护士将葡萄糖针剂从病人的前臂静脉输入体内，当葡萄糖流经肺泡的毛细血管时，所经过的途径是…………………………………………………（）a 上腔静脉b下腔静脉c 右心房d左心室e右心室 f左心房g肺静脉h肺动脉A. acehB. bcfgC. adgcD. bcef21．在人体的血液循环中，对运载血细胞和运输养料和废物起重要作用的是（）A．红细胞 B．白细胞 C．血小板 D．血浆22．血液里红细胞或血红蛋白含量低于正常值，会引起………………（）A．发炎 B．糖尿病 C．贫血 D．坏血病23．下列各项中，不属于排泄途径的是……………………………..…（）A．呼出二氧化碳 B．皮肤排汗 C．食物残渣的排出 D．排尿24．人的听觉感受器在……………………………………………………（）A．鼓膜上 B．鼓室内 C．耳蜗内 D．半规管内25．分泌生长激素的腺体是……………………………………………..（）A．垂体 B．甲状腺 C．胰腺 D．肾上腺二、请你帮忙：（用字母填在答题纸相应部位的横线上．．．．．．．．．．．．．．．．,每格1分，共5分）26. 请你找出下列【（1）～（5）】与其因素【A～E】之间的对应关系，并用字母填．．．．在答题纸相应部位的横线上．．．．．．．．．．．．（1）瞳孔缩小 A.幼年缺乏生长激素（2）近视眼 B.胰岛素分泌少（3）传导性耳聋 C.晶状体过凸（4）侏儒症 D.鼓膜受损（5）糖尿病 E.光线过强（1） ；（2） ；（3） ；（4） ；（5） 。

江苏省海门市东灶港初级中学2013-2014学年八年级物理上学期期中试题新人教版一、选择题(28分，每题2分)1.下列有关声现象的说法中，正确的是（）A．声波能传递信息，也能传递能量B．“禁止高声喧哗”中的“高”是指声音的音调高C．只要物体在振动，我们就一定能听到声音D．两名宇航员在太空中能直接对话2．玻璃鱼缸内养有金鱼，若轻轻地敲击鱼缸边缘，则会看到鱼被吓走，此时鱼接收到声信号的主要途径是（）Ａ．水—鱼Ｂ．空气—水—鱼Ｃ．鱼缸—水—鱼Ｄ．空气—鱼缸—水—鱼3．在夏天开着空调的公交汽车和寒冷的冬天的公交汽车车窗上都会出现水珠,水珠是在车窗的( )A．夏天在外表面,冬天在内表面 B．夏天在内表面,冬天在外表面C．都在内表面 D．都在外表面4．铅的熔点是328℃,那么温度是327℃的铅其状态是( )A．一定是液态 B．一定是固态C．一定是固液共存状态 D．三种情况都有可能5．下列物态变化中，属于升华现象的是（）A．放在衣橱了的樟脑丸越来越小；冬天窗户上的“冰花”B．冬天的“雾凇”；水面上结的冰C．花盆中潮湿的泥土变干；D．冬天冰冻的衣服，在通风处自然晾干；利用“干冰”人工降雨6．下列事例中属于防止蒸发吸热产生危害的是( )A．没有汗腺的狗,酷暑时伸长舌头来散热B．夏天下暴雨,衣服淋湿后要换干衣服C．病人发烧时常用湿毛巾敷头部D．夏天在教室地上洒些水7.如图1所示的四种现象中，由光的直线传播形成的是( )8.图8是利用透明玻璃板探究平面镜成像特点的实验示意图，下列说法正确的是( )A.像的大小与蜡烛到玻璃板的距离有关B.蜡烛远离玻璃板过程中，蜡烛的像始终与蜡烛等大C.把光屏放在玻璃板后像所在的位置，像会成在光屏上D.用玻璃板代替平面镜是为了能在玻璃板后成一实像9.如图5所示，对下列光学现象的描述或解释错误的是( )A.图（a ）中漫反射的光线尽管杂乱无章，但每条光线仍然遵循光的反射定律B.图（b ）中木工师傅观察木板是否平整，是利用了光的直线传播特点C.图（c ）所示炎热夏天公路上的海市蜃楼景象，是由光的反射现象造成的D.图（d ）所示是太阳光经过三棱镜色散后的色光排列情况10.下列关于光现象的说法中正确的是( )A.日食和月食是由于光的反射引起的B.高楼大厦的玻璃幕墙造成的光污染是由于光的漫反射引起的C.很厚的玻璃板看起来变薄了是由于光的折射引起的D.红色的牡丹花看上去为红色是由于它吸收红光、反射其它色光引起的11．如图4－12所示，OA 是光从水中射入空气的一条反射光线，若OA 与水面夹角60º，关于入射角α、折射角γ的说法正确的是( ) A.α＝60º，γ＜60º B. B.α＝60º，γ＞60ºC.α＝30º，γ＜30ºD.α＝30º，γ＞30º 12．在池边看水中的鱼，看到鱼的位置比实际要浅，这是由于（ ）A ．光线从水中射入空气时发生折射，折射角大于人射角B ．光线从空气射人水中时发生斤射，折射角小于入射角C ．光线在水面处发生镜面反射D ．光线在水面处发生漫反射13. 某校新建成一个喷水池，在池底的中央安装一只射灯。

江苏省海门市东灶港初级中学2013-2014学年七年级上学期期中考试数学试题新人教版一、选择题：（下面每小题给出的四个选项中，只有一个是正确的．每题2分，共24分）1．−2的绝对值是（）A． 2 B．−2 C． D．2．数轴上一点A,一只蚂蚁从A出发向右爬了4个单位长度到了原点,则点A所表示的数是（）A． 4 B．−4 C．±4 D．−23．下列各式的值与a−b− c的值不相等的是（）A． a−（b+c） B．（−c）−（b−a） C．（a−b）+（−c） D．a−（b−c）4．下列比较大小正确的是（）A．−5<−4 B．−（−21）<+（−21）C．−｜−10｜> 8 D．−｜−7｜= −（−7）5．地球的表面积约是510 000 000 km2，用科学计数法表示为（）A． 51 ×107 km2 B．5.1 ×107 km2 C．5.1 ×108 km2 D． 0. 51 ×109 km2 6．下列各组是同类项的一组是（）A．与B．−与C．与D．与7．下列说法中错误的是（）A．的二次项为 B．单项式的次数为3C．+1是二次二项式 D．的系数为8．若m、n互为相反数，c，d互为倒数，则代数式4（m+n）−3cd的值为（）A． 4 B．−1 C．−3 D． 09．下列计算的结果正确的是（）A． a+a=2a2 B．a5−a2 =a3 C．3a+b=3ab D． a2−3a2 =−2a210．在、、、这四个数中，最大的数比最小的数要大（）A． 13 B．10 C．8 D．511．已知a−b=3，c+d=2，则（b+c）−（a−d）的值是（）A． 1 B．−1 C．−5 D．1512．下面是按一定规律排列的一列数：第1个数：；第2个数：；第3个数：⋯⋯第3个数：．那么，在第10个数、第11个数、第12个数、第13个数中，最大的数是（）A．第10个数 B．第11个数 C．第12个数 D．第13个数二、填空题：（每题2分，共20分）13．−3的倒数是．14．若一个数的绝对值为7，则这个数是．15．已知是同类项，则m+n= ．16．若，则．17．小明在超市买一食品，外包装上印有“总净含量（300±5）g”的字样。

江苏省海门市东灶港初级中学2012届九年级物理上学期期末考试试题 新人教版第I 卷 选择题 (共24分)第I 卷12小题，每小题2分，共24分．每小题给出的四个选项中只有一个选项正确．请将正确的答案请按要求填涂在答题卡上．1．在全国蹦床锦标赛中，当运动员从蹦床上起跳后，在空中上升的过程中A ．动能变小，重力势能变大B ．动能变小，重力势能变小C ．动能变大，重力势能变大D ．动能变大，重力势能变小2．如图所示，下列用电器的额定电流最接近4A 的是3．小明在学了家庭电路后按下列四种方式安装了一盏大功率的电灯，你认为正确的是 4．下列说法中正确的是A ．机械效率越高，机械做功一定越快B ．做功越多的机械，机械效率一定越高C ．做功越快的机械，功率一定越大D ．功率越大的机械做功一定越多5. 用水平力F 拉着重为100N 的物体，在水平地面上向左匀速移动5m ，物体所受地面的摩擦力大小为20N ，则 A ．重力做的功是500J B ．拉力做的功为100JC ．拉力大小为120N D ．拉力大小为100N6．在安装直流电动机模型的实验中，如果安装完毕，闭合开关后，线圈顺时针方向转动，则能使线圈逆时针方向转动的做法是A ．减少一节电池，使通过线圈的电流减小B ．把电源的两极和磁铁的两极同时对调C ．移动滑动变阻器的滑片，使通过线圈的电流增大D ．把电源两极对调或改变线圈中的电流方向7.小明和小华同学在做“探究：比较水与煤油吸收热量时温度升高的快慢”的实验时, 使用了如图所示的装置．设计实验方案时，他们确定以下需控制的变量，其中多余的是： Ａ．采用完全相同的加热方式 Ｂ．酒精灯里所加的酒精量相同Ｃ．取相同质量的水和煤油 Ｄ．盛放水和煤油的容器相同A B CDA .家用电冰箱B .电视机C .节能灯D .电压力锅 第5题图8．如图所示，B 端悬挂一重为G 的重物，不计杠杆自重，在A 点施加动力F 使杠杆保持水平平衡.则下列说法正确的是A ．因为OA ＞OB ，所以F ＜G B ．当杠杆平衡时，一定满足G×OB=F×OAC ．F 的大小可能大于GD ．作用在B 点的拉力向下，所以F 的方向一定向上9．如图所示电路，下列说法正确的是A ．L 1和L 2串联B ．开关S 只控制L 2C ．电流表测干路中的电流D ．电流表测L 1中的电流10．小明同学在物理实践活动中，设计了如图所示的四种用电流表或电压表示数反映弹簧所受压力大小的电路，其中R ’是滑动变阻器，R 是定值电阻，电源两极间电压恒定．四个电路中有一个电路能实现压力增大，电表示数增大，这个电路是11．下列电路图中电源电压U 保持不变，定值电阻R 的阻值已知．在不改变电路的情况下，能测出未知电阻Rx 的阻值的电路图是12下列判断错误．．的是 A ．若U ＝2.5V ，无论怎样移动滑片P ，电路的总功率均不会超过0.75WB ．当滑片P 移至某个位置时，L 和R 的电功率可以相等C ．若U ＞2.5V ，且不损坏灯泡和变阻器，无论怎样移动滑片P ，电路中的总功率一定大于0.75WD ．若U ＜2.5V ，无论怎样移动滑片P ，L 均不能正常发光第Ⅱ部分 非选择题（共76分）二、填空题(本题共8小题，每空1分，共 25分)13．某同学用100N 的力作用在杠杆上，把物体举高了0.3m ，这时手下降的高度是1.2m ，被举高的物体重力是 ▲ N,做了 ▲ J 的功，（不计杠杆自重和摩擦）．金属片 弹簧 绝缘板 金属片弹簧绝缘板 金属片 弹簧 绝缘板 金属片 弹簧 绝缘板第8题图 第7题图 第9题图14．如图所示，工人用动滑轮将重400N 的木箱匀速向上提升，不计摩擦和滑轮重，在此过程中，工人用的拉力为 ▲ N ，木箱的重力势能 ▲ （选填“增大”、“减小”或“不变”）．15．街道旁的路灯总是一起亮、一起熄，它们的连接方式是 ▲ ， 理由是各盏路灯的工作 ▲ （选填“互相”或“互不”）影响．16．汽油机的一个工作循环有四个冲程，如图所示是汽油机的 ▲ 冲程，在这个冲程中，活塞压缩燃料使它的温度升高，是通过 ▲ 的方式增加燃料的内能．为了不让汽油机在工作时温度升得太高，气缸外有一个水套，让气缸被水包围着，这是通过 ▲ 的方式降低气缸的温度，采用水是因为水的 ▲ 较大．17．在如图所示的电路中，电源电压为3V ，开关闭合后，电流表和电压表的读数分别是0.10A 和2.0V ，则R 2两端的电压是 ▲ V ，R 1的电阻是 ▲ Ω． 18．如图甲所示是小宇家的电能表，此时表的示数为 ▲ kW ·h ，他家允许接入的用电器总功率最大为 ▲ W ；图乙是他家的一盏白炽灯，此灯的额定电压为 ▲ V ，该灯正常工作5min 消耗的电能为 ▲ J ，这个过程中电能表的转盘转动 ▲ 圈．19．（1）如图所示，小明将微型电扇与一只发光二极管连接，用手快速拨动风扇叶片，这这时发现发光二极管微弱的发光。