九年级第14单元复习卷
人教版九年级英语第十四单元测试题 Unit 14附答案
Unit14 I remember meeting all of you in Grade 7单元测试题（满分100分）班级_______ 姓名___________ 分数___________一、单项选择（15分）( )1.Welcome you all to China and enjoy ________ here.A.yourselfB.yourselvesC.themselvesD.himself( )2 -Could you tell me how long ________the hook?-At most one month.A.I can keepB.can I borrowC.I can borrowD.can I keep( )3-Why are you worried?－I'm expecting a call from my daughter. She ________New York for three days.A. has left forB.has been toC.has been inD.has come in ( )4-Do you remember ________ me in Kunming?－Yes,of course.Two years ago.A.to seeB.seeC.seeingD.saw( )5 Please remember the following things when you are in the museum.________,don't touch the things. Second, don't make noise.A.First of allB.By the wayC.In factD.So far( )6.He used to ____problems________ along with his classmates, but he can get on well with them now.A.have;getB.has;getsC.have;gettingD.having;getting ( )7.-Well,it is time to________.－So it is. Otherwise , we may miss the train.A.take upB.set upC.take outD.set out( )8.-Congratulations!You have won the first prize in the English Contest.-________!A.Thank youB.Good ideaC.Of courseD. Enjoy yourself( )9.－When did the classroom have a power cut?－This morning,while we ________ a physics lesson.A.have hadB.were havingC.are havingD.will have( )10.With the development of science and technology, robot cooks ________in our families in the future.A.appearB.appearedC.will appearD.is appearing( )11.You can't imagine how much they ________knowledge!A.are thirsty forB.are famous forC.are good forD.is thirst for( )12.1'm________the trip during which we can go wherever we want to go.－You'll take me, and I'll take the money.A.taking part inB.taking care ofC.looking back atD.looking forward to ( )13.As students,we should ________ourselves. We can't spend much time playing computer games.A.be responsible forB.be proud ofC.be popular withD.be thankful to( )14.-Can I come today or tomorrow? ________is OK. I'm busy today and tomorrow. A.Either B.Neither C.Each D.None( )15.－Over 100 countries and organizations ________warm support to the Belt and Road initiative(倡议）since 2013.－Wonderful!Our circle of friends is growing bigger!A.giveB.have givenC.gaveD.will give二、完形填空。
人教版九年级上册《第14章 内能的利用》单元测试卷(含答案)
人教版九年级上册《第14章内能的利用》2022年单元测试卷一、单选题（本大题共12小题，共36分）1.（3分）把盛有冷水的铝壶放到电炉上加热，则发生热传递三种方式的先后顺序应该是()A. 对流、辐射、传导B. 传导、对流、辐射C. 传导、辐射、对流D. 辐射、传导、对流2.（3分）关于热机，下列说法不正确的是()A. 热机的功率越大，其工作效率越高B. 减少城市热岛效应的措施之一就是倡导“绿色出行”C. 热机是将内能转化为机械能的装置D. 不管技术如何改进，热机的效率都不可能达到100%3.（3分）四冲程内燃机在一个循环中，内能转化为机械能的冲程是()A. 吸气B. 压缩C. 做功D. 排气4.（3分）8.（2022洪山区期中）从能量转化的角度看，一台四冲程内燃机在一个循环中，下列说法中正确的是（）A. 只有做功冲程存在着化学能转化为内能的过程B. 排气冲程存在着内能转化为机械能的过程C. 吸气冲程具有很明显的机械能转化为内能的过程D. 压缩冲程存在着机械能转化为化学能的过程5.（3分）如图表示出了电冰箱的构造和原理，下列说法正确的是()A. 制冷剂在冷冻室内由液态变为气态，是汽化吸热过程B. 冰箱的工作说明热量可以自发地从低温物体传递到高温物体C. 冷冻室中结的霜，是一种熔化现象D. 制冷剂在冷凝器内由气态变成液态，是凝固放热过程6.（3分）2020年1月18日，第十届江苏“台湾灯会”在常州恐龙城开幕。
如图所示为展会中的“走马灯”，点燃底部蜡烛，热空气上升驱动扇叶转动，观众惊奇地看到纸片小人的影子动了起来。
这个过程发生的能量转化与四冲程汽油机冲程图中相同的是()A. B. C. D.7.（3分）质量2kg的煤油燃烧一部分，剩余1kg则下列说法正确的是()A. 密度变为原来的1/2B. 比热容变为原来的1/2C. 质量变化原来的1/2D. 热值变为原来的1/28.（3分）西昌卫星发射中心用长征三号运载火箭，于2019年4月20日将第四十四颗北斗导航卫星成功送上太空。
人教版新目标英语九年级全册Unit14单元AB卷测试题及答案解析
人教版新目标英语九年级全册Unit 14单元AB卷测试题及答案解析Unit 14 单元 A 卷测试题Written test part ( 共95 分)V .单项选择(每小题1分，共15分)从 A 、B、C、 D 四个选项中选择可以填入空白处的最佳答案。
( ) 21. Matt was late for school three times in _______ row last week.A. aB. anC. theD. 不填( ) 22. Carl's parents allow him to develop his interests. He is thankful ________ them.A. forB. toC. withD. of( ) 23. In the first class, the teacher gave his students _______ on how to use the computer.A. standardsB. instructionsC. levelsD. tasks( ) 24. Sandy is a _______ girl and she always does something to help the old people.A. caringB. movingC. lonelyD. silly( ) 25. Just now we were told that the room next to ________ will be used as a reading room.A. weB. usC. ourD. ours( ) 26. If you want to ride well, the first thing to do is to _______ your fear of horses.A. causeB. doubleC. overcomeD. increase( ) 27. Du Li wants to learn more about American history. She is ________ such knowledge.A. good withB. sure aboutC. responsible forD. thirsty for( ) 28. Ted, ________ a car when you were living in London?A. do you haveB. were you havingC. have you hadD. did you have ( ) 29. —Did you tell Mr. Hunt about the result?—Oh, no, I forgot. I _____ him at once.A. have toldB. tellC. will tellD. told( )30. Well, it's time _______ goodbye. Please call me if you have any problems.A. sayB. to sayC. sayingD. to saying( )31. Minnie along with her good friends ______ Ice Age: Collision Coursetomorrow after noon.A. has watchedB. have watchedC. is going to watchD. are going to watch( )32. ______ , you should know what you want to do. Then make a pla n.A. First of allB. After allC. In the endD. In fact( )33. ______ his middle school years, Greg regretted not worki ng so hard.A. Taking pride inB. Taking care ofC. Look ing forward toD. Look ing back at()34. —What did you say to Jeff ?—I asked him _____ to the cerem ony.A. why was n't he comingB. why he was n't comingC. why had n't he comeD. why he had n't come()35. —Shall we eat Italian food ton ight?—_____ . I like it very much.A. That's funnyB. Good ideaC. That's trueD. Good luck弋.完形填空(每小题1分，共10分)先通读下面的短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案。
人教版九年级上册物理第十四章(内能的利用)单元测试卷及答案
人教版九年级第一学期物理单元测试卷第十四章内能的利用学校:___________姓名：___________班级：___________考号：___________一、单选题（每小题2分，共20分）1．人类最早发明的热机是（）A．蒸汽机B．内燃机C．喷气发动机D．火箭发动机2．关于神舟十四号返回舱穿越大气层下降过程中的能量说法正确的是（）A．能量不守恒B．内能总量保持不变C．机械能守恒D．机械能转化为内能3．轿车行驶过程中，油箱中汽油逐渐减少，剩余汽油的热值、密度变化情况为（）A．热值不变，密度不变B．热值不变，密度变小C．热值变小，密度不变D．热值变小，密度变小4．如图，在试管内装些水，用橡胶塞塞住管口，将水加热一段时间后，橡胶塞被冲出。
则（）A．管内水蒸气的内能不变B．管内水蒸气对橡胶塞做了功C．水所含的热量增加D．灯中剩余酒精的热值变小5．端午节煮粽子是中华文化的传统习俗，下列说法正确的是（）A．燃料燃烧为内能转化为化学能B．打开锅盖上面的白雾是水蒸气C．加热粽子是利用做功增加内能D．闻到粽子的香味是因为扩散现象6．2023年5月30日9时31分，随着一声“点火”令下，我国的长征二号F遥十六运载火箭向下喷出高温燃气，顺利发射升空，将神舟十六号载人飞船送到太空预定轨道。
关于火箭，下列说法错误的是（）A．燃气对火箭的推力改变了火箭的运动状态B．升空时，燃气对火箭向上的推力大于火箭对燃气向下的推力C．火箭燃料燃烧时，化学能转化为内能D．火箭发动机是利用内能做功的机械7．如图是喷气式飞机，它利用燃料燃烧后产生的高温、高压气体提供动力。
下列有关该飞机说法正确的是（ ）A ．发动机属于热机B ．在升空的过程中，飞机周围的大气压逐渐变大C ．加速升空时，飞机所受的力为平衡力D ．飞机水平飞行时，机翼上方的气体流速大，压强大8．2023年5月28日12时31分，自上海虹桥国际机场起飞的国产大飞机C919安全抵达北京首都国际机场（如图），圆满完成了首个商业航班飞行。
九年级化学第十四单元综合测试卷-人教版(含答案)
九年级化学第十四单元综合测试卷-人教版（含答案）1、关于物体的内能，下列说法正确的是（）A.南极的冰山由于温度较低，不具有内能B.让铅笔变热，只能通过加热的方法来实现C.铁块熔化成铁水后内能增加D.内能增大一定是由分子的热运动引起的2、下列关于温度、内能、热量的说法，正确的是（）A.物体温度越高，它的热量就越多B.要使物体的内能增加，不一定要吸收热量C.物体内能增加，它的温度就一定升高D.物体的比热容越大，温度升高时它吸收的热量越多3、下列有关能量转化的说法错误的是（）A.核电站发电——核能转化为电能B.电饭锅烧饭——电能转化为内能C.热机工作——机械能转化为内能D.太阳能电池一一太阳能转化为电能4、柴油机上安装了一个笨重的飞轮，是为了（）A.提高热机效率B.节省燃料C.可以做更多的功D.利用飞轮的惯性完成吸气、压缩、排气三个辅助冲程5、汽车多数采用汽油机作为发动机，如图是四冲程汽油机的工作循环示意图，下列说法中不正确的是（）A.甲冲程是压缩冲程B.乙冲程是排气冲程C.丙冲程是把机械能转化为内能D.丁冲程是吸气冲程6、某四冲程汽油机飞轮转速为3000r/min，则( )A.该汽油机每秒钟对外做功50次B.该汽油机每秒钟活塞完成50个冲程C.图中是压缩冲程，机械能转化为内能D.图中是做功冲程，内能转化为机械能7、关于温度、热量、内能，以下说法正确的是（）A.对物体加热，物体的温度一定升高B.物体的温度越高，所含的热量越多C.物体的温度为0℃，其内能也为零D.热量总是从温度高的物体向温度低的物体传递8、甲、乙两物体的比热容之比是1∶2，质量之比是3∶1，若它们吸收相同的热量，则它们升高的温度之比是（）A.1∶2B.3∶2C.2∶3D.3∶19、小明将一次性纸杯倒满开水，已知水的比热容为4.2×103J/（kg•℃），这杯水温度降低到可以饮用时，放出的热量最可能是（）A.1×104JB.4.2×104JC.1×105JD.1.5×105J10、下列说法正确的是( )A.内燃机是利用电能做功的机械B.内燃机在做功冲程把内能转化为机械能C.内燃机在压缩冲程把内能转化为机械能D.随着技术的进步，内燃机的效率达到100％11、下列关于能量转化的说法正确的是( )A.水力发电——内能转化为电能B.柴油机做功冲程——内能转化为机械能C.手机充电——电能转化为机械能D.下落的小球——动能转化为重力势能12、物体A、B质量相等，把它们加热到相同的温度，然后把它们分别放入等量同温的水里，（不计热量损失），A物体能使水温升高10℃，B物体能使水温升高20℃，设A、B的比热容为cA 和cB，则（）A.cB =cAB.cB=2cAC.cB＞2cAD.cA＜cB＜2cCA13、关于如图所示的热学实验，叙述正确的是（）A.甲图中，压紧的两铅块，下面悬挂钩码而不分开，这是由于大气压强的作用B.乙图中，试管内的水沸腾后，水蒸气将软木塞推出，软木塞的内能的转化为它的机械能C.丙图中，抽去玻璃隔板后，两瓶中的气体逐渐混合，这说明上面瓶中的空气密度较大D.丁图中，金属管装有少量乙醚，迅速拉动缠在金属管外的皮绳，可使橡皮塞从管口飞出14、下列关于热量和热值的说法中正确的是( )A.热水比冷水含有的热量高B.将煤球研磨成粉末，可以提高煤的热值C.热值越高的物质含有的热量越多D.燃料的热值与燃料燃烧得是否充分无关15、关于内能、温度和热量，下列说法正确的是（）A.物体的内能跟物体的运动速度、物体的温度和物质状态都有关系B.不同燃料燃烧时，放出热量越多的热值越大C.质量和初温相同的水和煤油，放出相同热量时煤油温度降低的多D.内能总是从内能多的物体向内能少的物体转移16、甲、乙两杯中分别盛有60℃和20℃质量相同的水，现将一温度为20℃的铁球投入甲杯中足够长时间，取出后再投入乙杯，停留足够时间．如果不计热量损失，比较甲、乙两杯的水温变化，则（）A.△t甲＜△t乙B.△t甲＞△t乙C.△t甲=△t乙D.无法判定17、如图，在比较酒精和水比热容大小的实验中，用图甲装置对相同质量的酒精和水进行加热，得到图乙的温度随时间变化的图像．下列说法正确的是（）A.用同一盏酒精灯对两个试管同时加热是为了使酒精和水吸收相同的热量B.质量相同的不同种物质，加热相同的时间，吸收热量不同C.从图像可知水的比热容比酒精的小D.从图像可知质量相同的不同种物质升高相同的温度，吸收的热量相同18、用两个相同的电热水器给质量同为2kg的物体甲和水加热，它们的温度随加热时间的变化关系如图所示，据此判断甲物质10min吸收的热量为（）A.0.84×105JB.1.2×105JC.2.52×105JD.条件不足，不能计算19、两个相同的容器分别装有质量相同的甲、乙两种液体．用同一热源分别加热，液体温度与加热时间关系如图所示．下列说法正确的是（）A.甲液体的比热容大于乙液体的比热容B.如果升高相同的温度，两液体吸收的热量相同C.加热相同的时间，甲液体吸收的热量大于乙液体吸收的热量D.加热相同的时间，甲液体温度升高的比乙液体温度升高的多20、探究“比较不同物质的吸热能力”时，同学们用酒精灯同时开始均匀加热质量和初温都相等的沙子和水，装置如图．下列说法正确的是（）A.实验中，沙子吸热升温较快，说明沙子吸热能力较强B.在本实验中，物体吸热多少是由物质的种类决定的C.实验中，将沙子和水加热到相同温度时，它们吸收的热量相同D.实验中，加热相同的时间，末温低的物质吸热能力强21、用两个相同的“热得快”，分别给质量、初温都相同的甲、乙两种液体同时加热．两种液体的温度随时间变化的图象如图所示，已知甲液体的比热容为1.8×103J/（kg•℃），则乙液体的比热容是J/（kg•℃）．22、汽油机四个冲程：吸气冲程、________冲程、________冲程和排气冲程．压缩冲程中_____转化为_____，机械能减少，内能增加，温度升高；在做功冲程中，________转化为________，内能减小，温度降低．23、常见物质是由大量分子组成的．扩散现象是由于分子形成的；一定量的水和酒精混合总体积变小，是由于分子之间存在；固体和液体很难被压缩，是由于分子之间存在．24、用打气筒打气，在空气被快速压缩的过程中，空气分子的运动________，空气的内能________，气筒底部筒壁内能________，其内能改变是通过________实现的. 25、质量相同、初温相同的水和煤油，放出了相同的热量后，将其混合在一起.则它们之间________(填“有”或“没有”)热传递，如果有热传递，热量是由________传递到________.参考答案1C.2B.3C.4D.5C.6D.7D.8C.9B.10B.11B.12C.13D.14D.15C.16B.17A.18C. 19D.20D.21.4.2.8×103J；22.压缩；做功；机械能；内能；内能；机械能；23.运动；间隙；斥力；24.加快；增加；增加；做功；25.有；水；煤油，。
人教版九年级英语全册 Unit14 单元测试题(含答案)
人教版九年级英语全册 Unit14 单元测试题（含答案）本试题分第Ⅰ卷(选择题)和第Ⅱ卷（非选择题）两部分。
第Ⅰ卷共5页，满分为75分；第II卷共2页，满分为45分。
本试题共6页，满分120分，考试时间为90分钟。
第I卷(选择题共75分)（）1. ― What movie will be shown ______ TV tonight?― Shaolin Temple.A. inB. atC. fromD. on（）2. When you travel to a city, you’d better buy a to get more information about it.A. newspaperB. suitcaseC. guidebookD. camera（）3. Maybe I have heard of this girl before, but I can ______ remember her name.A. hardlyB. reallyC. mostlyD. easily（）4. _______ trees were cut off. And many birds lost their home.A. Thousand ofB. Thousands ofC. Two thousandsD. Two-thousand（）5. ― Are you full now?― No. I want ______ apple pies.A. more oneB. one moreC. more twoD. two more( ) 6. You ________ ever saw computers years ago, but now they are everywhere. A. sometimes B. usually C. hardly D. almost( ) 7. This is a very big company. It has______ workers. Do you want to work here?A. five thousandB. five thousandsC. five thousands ofD. five thousand of( ) 8. My job is feeding the cat. Now it’s your turn______ the dog.A. feedingB. to feedC. to have fedD. being fed( ) 9. My friend, Darren, is coming to visit us. I’m looking forward _______ him.A. meetB. meetingC. to meetD. to meeting( ) 10. —The radio is too noisy and there is nothing interesting on it. Why don’t you______ ?—All right. I’ll do that.A. turn it onB. turn it offC. turn it backD. turn it up（）11. ― Have you ever________ to a zoo?― Yes, but only once. I visited Beijing Zoo last year.A. goneB. beenC. visitedD. seen（）12. ― What are you ______ your suitcase for?― I’m ready for a trip.A. makingB. shuttingC. packingD. putting（）13. — How long ______ the movie Aftershock ______?— For just several minutes.A. did; beginB. has; begunC. has; been onD. will; on（）14. ― When did you start your math homework?― One hour ago, but I________ it yet.A. didn’t finishB. finishedC. have finishedD. haven’t finished（）15. ― What a cool day! How about climbing Mount Tai?― ________. Let’s ask Yang Liu to go with us.A. Never mindB. Not at allC. Sounds greatD. Good luck（）16. Please go to the station to _______ when the train to Beijing starts to leave.A. find forB. look forC. find outD. find（）17. Mr. Green is rich. He ______ his dog ______ meat.A. feed, onB. feeds, onC. give, toD. feeds, for（）18. ________ have you been in China?A. How longB. How oftenC. How soonD. How far（）19. He does business in Shanghai. He ______ Shanghai the day after tomorrow.A. leaves forB. is leaving forC. left toD. is leaving to( ) 20. He _______ carefully but he could not ________ his teacher clearly.A. heard, listenB. listen, hearC. listened, hearD. heard, listened ( ) 21. He kissed his wife and then ______ goodbye ______ her when he left home.A. say, toB. said, toC. spoke, toD. said, with( ) 22. We need friends to ________, or we will feel ________.A. chat, aloneB. chat with, lonelyC. speak, lonelyD. talk with, alone ( ) 23. Mike is _______ honest man. I __________ him.A. an, believe onB. a , believe inC. an, believe inD. the, believe ( ) 24. This story ______ tells us how Bill Gates becomes successful.A. mostlyB. mainlyC. mostD. Both A and B( ) 25. ― Thank you very much for your nice present.― ___________.A. I’m very glad you like it.B.No, thanks.C. Oh, it’s nothing.D.No, it’s very cheap（）26.---Have you ever______ to Hawaii before?---Yes, it’s beautiful. It is better than any_____ in AustraliaA. gone; beachB. been; beachC. gone; beachesD. been; beaches（）27. When we got to the bus stop, the bus ______ for about half an hour.A. has leftB. leftC. has been awayD. had been away（）28.---How long have you been a league member?--- ________ .A. A long time agoB. Since two yearsC. For about a yearD. In 2006（）29.The parents encouraged their daughter______ her EnglishA. improvingB. improvesC. improvedD. to improve（）30.The meeting has already started for about ten minutes but Henry______ yet.He must have something important to do.A. hasn’t led us to itB. has turned pointC. hasn’t appearedD. miss itⅡ. 完形填空（15分）阅读下列短文，选择可以填入空白处的最佳选项。
Unit 14刷语法时态复习(重点语法提升练)九年级英语全一册单元模块满分必刷题(人教版)
九年级英语全一册单元模块满分必刷题（人教版）Unit 14【刷语法】(重点语法提升练)时态复习一、单项选择1．（2022·甘肃平凉·二模）The teacher told us that the earth ________ around the sun.A．moved B．moves C．had moved D．was moving 2．（2022·广西贵港·二模）—Mum, when will we go to the zoo?—As soon as the rain ________.A．is stopping B．will stop C．stop D．stops3．（2022·湖北武汉·模拟预测）—I think 13-year-old teenagers should be allowed to drink and smoke.—I ________. They are still too young.A．didn’t agree B．I don’t agree C．hasn’t agreed D．wouldn’t agree 4．（2022·湖北武汉·模拟预测）—I don’t think teens should be allowed to smoke.—I __________. It’s quite unhealthy.A．agreed B．agree C．will agree D．had agreed 5．（2022·湖北·武汉一初慧泉中学模拟预测）—I don’t think sixteen-year-olds should be allowed to work at night.—I ________. Young people need to sleep.A．agreed B．agree C．have agreed D．had agreed 6．（2022·湖北武汉·模拟预测）—I don’t think sixteen-year-olds should be allowed to drive.—I ________. They aren’t serious enough.A．have to agree B．agreed C．agree D．had agreed 7．（2022·河北·模拟预测）Jack’s mother requires him to wash his hands carefully when he ________ from public places.A．returns B．is returning C．returned D．has returned 8．（2022·重庆巴蜀中学二模）Hundreds of babies ________ in this town every year, so we need more baby-care centers.A．were born B．will be born C．has been born D．are born9．（2022·黑龙江哈尔滨·二模）These hens raised by Grandma ________ eggs every day. This morning, she ________ them in a basket, counting with joy.A．laid, lied B．lay, lain C．lay, laid10．（2022·甘肃定西·模拟预测）I’d like to buy a new dictionary which ________ pictures in it.A．had B．has C．is having D．have11．（2023·西藏·墨竹工卡县中学模拟预测）Last week I ________ a report about agriculture.A．write B．written C．wrote D．was wrote 12．（2022·西藏·模拟预测）I used to _______ in Tibet, but now I am used to _______ in Shanghai. A．live; living B．living; living C．live; live D．living; live 13．（2022·浙江温州·三模）—What __________ you to choose to be a doctor?—I read a book about Norman Bethune years ago. I think he is really great.A．influenced B．influences C．is influencing D．will influence 14．（2022·浙江·温州市南浦实验中学二模）—I wonder why Andrew looks so unhappy.—Well, he ________ his homework at home. He has to return to fetch it.A．leaves B．left C．will leave D．had left15．（2022·江苏·梅岭中学教育集团运河中学二模）— Have you ever been to Xiamen, Alice?— Yes. It’s a fantastic place. I ________ there for a week last summer.A．stay B．stayedC．have stayed D．was staying16．（2022·江苏·盐城市盐都区实验初中二模）—You know a lot about Nanjing University. Have you been studying there?—No, I ________ there for only half a month last year. But I still remember it clearly.A．stay B．have stayed C．stayed D．will stay 17．（2022·江苏·盐城市初级中学三模）He was so clever that he ________ play the piano at the age of 5. A．can B．may C．could D．must18．（2022·河北·馆陶县教师发展中心二模）The creative scientist ________ many useful tools in his forties. A．is inventing B．invented C．was inventing D．invents19．（2022·江苏宿迁·三模）—Did you have a good time in Kunming?—Yes, you can see my photos on my Wechat Moments. They show you ________.A．how did we go there B．where we will go C．when did we meet D．what the trip was like 20．（2022·江苏南通·模拟预测）—Has your aunt come back from New York?—Yes. She _________ there for three months to help people there fight against the flu.A．has stayed B．stays C．stayed D．will stay 21．（2023·西藏·墨竹工卡县中学模拟预测）We are going to ________ a picture.A．draw B．drawing C．draws D．drawn22．（2022·西藏·墨竹工卡县中学模拟预测）—Do you know ________ our school?—Tomorrow.A．when the American students visit B．when the American students will visitC．when do the American students visit D．when will the American students visit 23．（2022·西藏·墨竹工卡县中学模拟预测）—Let’s go swimming if it ________ this weekend.— But nobody knows if it ________.A．will be fine; will rain B．is fine; will rain C．is fine; rains D．will be fine; rains24．（2022·西藏·墨竹工卡县中学模拟预测）—The World Cup is coming. I am not going to ________ any game!—I’m looking forward to ________ every match of it, too.A．miss; watch B．miss; watchingC．missed; watch D．misses; watched25．（2022·河北·石家庄市第二十八中学二模）Oh, no, I forgot to call Jenny back. I ________ her right away.A．called B．call C．have called D．will call26．（2022·甘肃平凉·二模）We ________ a class meeting tomorrow afternoon.A．have had B．has C．will have D．had27．（2022·新疆阿克苏·一模）There ________ a football game in the sports center next week.A．will be B．will have C．is going to have D．is28．（2022·内蒙古兴安盟·二模）—The weather report says that it ________ tomorrow in most parts of Harbin city.— If it ________, the school sports meet will be put off.A．will rain; will rain B．will rain; rainsC．rains; will rain D．rains; rains29．（2022·湖北黄冈·二模）—What’s your plan for this coming summer holiday?—I am not sure if I ________ to Hainan on vacation with my parents.A．go B．went C．will go D．have gone 30．（2022·山东·阳信县教育科学研究中心一模）—Don’t worry about the final exam. You ________ it if you work hard.—Thanks!A．pass B．will pass C．passed D．have passed 31．（2022·山东·济南市历城区教育教学研究中心二模）—Lucy, is your uncle a teacher?—Yes, he is. He ________ history since 2017.A．teaches B．has taught C．is teaching D．will teach 32．（2022·黑龙江·哈尔滨市风华中学校三模）—What do you think of the online courses?—I have been used to the online studying ________ 2021.A．in B．since C．after33．（2022·山东菏泽·三模）Thanks to his English teacher, Jim ________ great progress since he came to this school.A．is making B．has made C．made34．（2022·浙江·温州外国语学校三模）—Look! How tidy our school hall is!—Yeah. The volunteers ________ it carefully to welcome the new pupils.A．will clean B．have cleaned C．clean D．were cleaning 35．（2022·江苏·连云港市新海初级中学三模）— Excuse me, sir. Can I get my phone back?— Sure, I ________ it.A．have repaired B．will repair C．am repairing D．repaired36．（2022·浙江·乐清市乐成实验中学三模）With the help of Wenzhou Government, we _______ the new lift to our building. My grandparents don’t need to climb the stairs any more.A．add B．will add C．have added D．are adding 37．（2022·河北·石家庄市第二十八中学二模）—Ms. Miller ________ our papers. Look! I got an “A”. — Good job!A．checks B．is checking C．will check D．has checked 38．（2022·甘肃平凉·二模）His grandfather ________ for twenty years.A．died B．has died C．has dead D．has been dead 39．（2022·江苏·盐城市盐都区实验初中一模）—Excuse me. What is the Trip Code used for?— It’s used to show where we ________ over the last 14 days.A．are B．were C．have been D．will be40．（2022·江苏镇江·模拟预测）—You’re late. The film The Battle at Lake Changjin _________ for twenty minutes.—Sorry, I just answered a call from mum.A．began B．was on C．has begun D．has been on二、用所给单词的正确形式填空41．（2022·西藏·墨竹工卡县中学模拟预测）He ________ (worry) about his little son, isn’t he? 42．（2022·上海杨浦·二模）Every day large areas of forest ________ to make paper for newspapers. (appear) 43．（2022·江苏·泰州中学附属初中三模）I’m sure the bag my cousin bought in Shanghai last week _____ (wash) easily. I also want to buy one.44．（2022·内蒙古包头·一模）As is well known, doing eye exercises ________ (play) an important role in protecting the eyesight of students.45．（2022·西藏拉萨·二模）My parents often __________ (encourage) me not to give up my dream. 46．（2022·西藏拉萨·二模）Neither the students nor the teacher __________ (be) pleased about the results. 47．（2022·江苏无锡·二模）What worries me a lot ________ (be) the problems we’ve had with health care. 48．（2022·甘肃武威·二模）We will go on a picnic if it ________ (not rain) this afternoon. 49．（2022·广西·象州县教研室一模）Jenny is friendly and she often _______ (smile) before she speaks. 50．（2022·上海松江·二模）There is still a long way to go before we ________. (success) 51．（2023·西藏·墨竹工卡县中学模拟预测）They ________ (be) also students five years ago. 52．（2022·西藏·模拟预测）He ________ (put) down his bag and ran out as soon as he came back from school.53．（2022·江苏·无锡市华庄中学二模）He chose to study near his home. It _________ (turn) out to be a wise decision finally.54．（2022·江苏·梅岭中学教育集团运河中学二模）All of us finally ________ in getting to the top of the mountain.(success)55．（2022·江苏·无锡外国语学校二模）—Dear me! You broke my favourite vase!—I’m so sorry, I ________ (not mean) it.56．（2022·江苏省锡山高级中学实验学校三模）Tom ________ (hang) his clothes up and made them dry so that he could wear them the next day.57．（2022·贵州安顺·二模）Lily used ________(be)shy but she is more active and outgoing in group work now.58．（2022·贵州六盘水·模拟预测）The China women’s soccer team ________ (overcome) the difficulties and won the Asian Cup on Feb. 6, 2022.59．（2022·黑龙江·二模）The man to whom you just now ________ (speak) is Mr. Li. 60．（2022·甘肃·一模）They ________ (dig) holes to plant trees when we got to the top of the hill. 61．（2022·黑龙江鸡西·三模）Everyone including Tony and Jack ________ (be) going to take part in the basketball match.62．（2022·甘肃庆阳·模拟预测）Don’t worry. Miaomiao is a smart cat and I’m sure she _________（come) back soon.63．（2022·甘肃定西·模拟预测）All the work ________ (finish) in two hours. Please don’t worry. 64．（2022·江苏泰州·二模）Follow the instructions, and you ________ (make) a nice model plane. 65．（2022·江苏无锡·二模）Sonia ________（stay）with her sister until she finds somewhere to live. 66．（2018·江苏无锡·一模）We doubt whether AI __________(reach) human levels of intelligence and cognition(认知) in the near future.67．（2022·上海普陀·二模）Taking various subjects in the school will ________ our mind. (rich) 68．（2022·上海青浦·二模）Millie will ________ another meeting to tell her stories to her friends. (organization)69．（2022·上海静安·二模）Our headmaster will ________ a famous teacher to give us an open class. （invitation）70．（2022·江苏·无锡市天一实验学校三模）Show your names to the teachers, and they _________ (lead) you to the new class.71．（2022·西藏·模拟预测）We ________ (study) in this school for over two years.72．（2022·江苏省淮阴中学开明分校二模）So far, China ________ (win) much high praise from many other countries around the world.73．（2022·西藏拉萨·一模）The Greens ________ (be) in China since 1997.74．（2022·江苏泰州·二模）—The TV is not working.—Not again! It _________ (happen) twice this week.75．（2022·江苏无锡·二模）We ________（spend）too much this month and there is another week to go before I get paid.76．（2022·广东·深圳市宝安中学（集团）模拟预测）The wildfires in Australia ______ (spread) through the forests very quickly for four months.77．（2022·广东·深圳市宝安中学（集团）模拟预测）Recently the price of vegetables during the Spring Festival ______ (rise) rapidly.78．（2022·辽宁盘锦·模拟预测）The workers ________ down many tall buildings in the last three months. (pull)79．（2022·贵州贵州·模拟预测）The number of sharks has ________(fall) greatly in the past 30 years. 80．（2022·黑龙江·肇东市第十一中学校三模）Great changes _________ (take) place in the past 30 years in China.参考答案：1．B【详解】句意：老师告诉过我们地球围着太阳转。
人教版九年级物理全一册第14章 内能的利用单元综合测试卷(含答案)
人教版九年级物理第14章内能的利用单元综合测试卷一、选择题（每小题3分，共36分）1．热机的效率较低,为了提高热机的效率,你认为下列方法目前不可能的是()A.尽量使燃料充分燃烧B.尽量减少各种热损失C.尽量减少因克服摩擦力而额外消耗的能量D.想办法把燃料放出的热量全部用来做有用功2．关于四冲程汽油机和柴油机，下列说法中正确的是()A．在吸气冲程中，吸入汽缸的都只是空气B．在压缩冲程末，柴油机汽缸内的气体温度比汽油机低C．在做功冲程初，都由火花塞点火D．在排气冲程时，排气都依靠飞轮的惯性来完成3．用煤油炉烧水，已知煤油的热值是4.6×107 J/kg，当完全燃烧0.5 kg的煤油时() A．水吸收了2.3×107 J的热量B．水吸收的热量小于2.3×107 JC．水吸收的热量大于2.3×107 JD．煤油放出的热量全部被水吸收4．柴油机上安装了一个质量很大的飞轮，目的是()A．使整个机器外形协调美观B．节约燃料C．输出更多的功D．利用飞轮的惯性完成吸气、压缩、排气三个辅助冲程5．热机的广泛使用已成为一个国家工业化程度的标志,人类的现代生活已越来越离不开各种热机,热机从根本上改变着我们的世界.下列相关说法正确的是()A.热机是把内能转化为机械能的装置B.内燃机完成一个工作循环对外做功两次C.使用热值大的燃料可提高热机效率D.采取有效措施可以使热机效率达到100%6. 汽油机工作时，汽缸内温度最高的时刻是()A．吸气冲程结束时B．压缩冲程结束，电火花点火的瞬间C．做功冲程结束时D．压缩冲程结束，电火花点火后的瞬间7．如图所示是四冲程汽油机的一个工作循环示意图,其中属于利用机械能转化为内能的冲程是()8．下面关于汽油机与柴油机的说法中，不正确的是()A．汽油机与柴油机使用的燃料不同B．柴油机汽缸顶部有个喷油嘴，汽油机汽缸顶部有个火花塞C．柴油机与汽油机除使用的燃料不同外，在构造上完全相同D．柴油机采用压燃式点火，汽油机采用点燃式点火9．下列有关能量转化和守恒的说法正确的是()A.用电器通电工作时,将其他形式的能转化为电能B.某种化学反应是放热反应,该反应将内能转化为化学能C.植物光合作用合成有机物,说明能量可以创生D.“既要马儿跑,又要马儿不吃草”违背了能量转化和守恒定律10．右图是某人设想的永动机，他认为轮子中金属球的滚动能使轮子不停地转动．但图中所示的永动机却是不可能存在的，因为()A．能量是不可能无中生有的B．该永动机中的金属球太少C．金属不能一直以金属球的形式存在D．该永动机中金属球具有的重力势能会凭空消灭11. 某单缸四冲程汽油机的转速是600 r/min，则下列说法正确的是()A．1 min内燃机对外做了600次功B．1 s内完成了10个工作循环C．燃气做一次功的时间间隔是0.2 sD．1 s内活塞共来回20次12.根据能量守恒定律，以下情形可能发生的是()A．出膛的子弹射穿木板，以更快的速度继续前进B．电水壶里的水沸腾了，给该电水壶断电，水的沸腾却永远不会停止C．孤岛上被人们遗忘的一只机械表，表针可以一直默默地走下去D．两个斜面相对接，小球从左斜面滚下后，继续冲上右斜面二．填空题（每空2分，共40分）13．3.0×107 J/kg、2.4×103 J/(kg·℃)是表示酒精特征的两个物理量，它们依次表示的是酒精的________和_________。
九年级英语Unit14单元测试题及答案
新目标英语第14单元测试题I. 用所给词的适当形式填空。
I . I have____ (feed) my cat, so it is full now.2. He used his car _____ (most) for sightseeing.3. He hasn’t _____ (finish) ______ (read) Harry Potter yet.4. We needn’t go in such a hurry. We still have thirty minutes _______ (leave).5. I need to ______ (clean) my cupboard. I never use the things in for hours. II．根据首字母提示，补全单词，完成句子。
1. It sounds like you guys are o_____ your way.2. They are going to a_____ on TV next month.3. Be sure not to m______ the New Ocean Waves if they come to a city near you.4. I like music, so I often go to a c________ with my family.5. It is really a p_________ experience. I consider it a t______ point in my life.III .请你来当翻译家.根据汉语提示,完成下列句子。
（横线处不限词数）1. 你给花浇水了吗?_________________________________________________?2.我今天有许多琐事要做，所以不能和你一起去看电影了。
I have many chores __________ today. So I can not _____________ with you.3.请点着火,该做晚饭了。
[金榜题名]人教版九年级全一册物理 第十四章 内能的利用 单元复习练习题
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人教版九年级物理第十四章内能的利用单元复习练习题一、选择题1．在“比较质量相等的不同燃料充分燃烧时放出的热量”的活动中，小明发现分别使5g的酒精和5g的碎纸片充分燃烧后，被它们加热的各100g、25、的水的温度分别上升到80、和45、，这说明A．燃烧酒精总比燃烧碎纸片放出的热量多B．酒精含有的热量比碎纸片大得多C．酒精的内能比碎纸片内能大得多D．酒精的热值比碎纸片的热值大2．右表中所列为几种常见燃料的热值．学校在室温10、时，每天向学生供100kg开水，若使用表中所示的燃料烧这些水，则所需燃料最少的是A．汽油B．酒精C．无烟煤D．烟煤3．在密闭的房间里有一个开着门的电冰箱，给电冰箱通电，过一段时间后，房间的温度将A．升高B．不变C．降低D．无法确定4．为体现低碳经济的理念，上海世博会充分利用太阳能发电技术，其主题馆屋面太阳能板的面积达3×104m2，年发电量3×106kW·h。
若这些电能由火力发电站提供（煤的热值为3×107J／kg，煤完全燃烧释放的内能转化为电能的效率是30%），则仅此一项每年可节约煤炭的质量为( )A．2.0×104kg B．1.2×105kg C．3.6×105kg D．1.2×106kg5．下面是小明同学“物理学习笔记”中的摘录，其中正确的是（ （A．做功和热传递在改变物体热量上是等效的B．某种燃料在燃烧时所放出的热量叫做这种燃料的热值C．热量是在热传递过程中物体内能改变的多少D．温度越高的物体具有的热量越多6．关于热机的效率，下列说法中正确的是、 、A．热机做的有用功越多，热机效率一定高B．热机的功率大，热机效率一定高C．热机单位时间内消耗的燃料少，热机效率一定高D．以上说法都不对7．两台汽油机，甲的功率是乙的1.5倍，甲的效率为20%，乙的效率为25%，那么甲与乙每小时消耗油量之比为( ) A．6、5B．15、8C．5、6D．8、158．下列关于热现象的说法中不正确．．．的是（）A．火箭使用液态氢作燃料，是因为液态氢含有的热量多B．一杯煤油用去一半，它的比热容减为原来的一半C．0、的水变成0、的冰，温度不变，内能不变D．内陆地区比沿海地区昼夜温差大，原因之一是沙石的比热容比水的比热容小二、填空题9．新农村建设中，国家大力推广使用瓶装液化气。
人教版九年级物理全一册第十四章 内能的利用 单元测试卷(含答案)
第十四章内能的利用单元测试卷一、选择题（本大题共14小题）1．如图所示是一新款跑车，当跑车在水平路面上疾驰时，下列说法正确是（）A．给跑车提供动力的是压缩冲程B．跑车用水作冷却剂，是因为水的比热容小C．做功冲程中，内能转化为机械能D．夏天在户外的车身较热，这是通过做功增加车身的内能2．2021年10月16日，神舟十三号载人飞船发射取得圆满成功，顺利将翟志刚、王亚平、叶光富3名航天员送入太空，下列说法正确的是（）A．火箭使用液氢做燃料，利用液氢的热值大B．火箭升空时头部发热是由于热传递造成的C．火箭加速升空过程中，动能与势能都增大D．载人飞船在预定轨道正常运行时没有惯性3．下列能量转化或转移的情景中，属于能量转移的是（）A．燃料燃烧时发热B．用热水袋取暖C．钻木取火D．电动机带动水泵把地下水送到地面4．2022年5月10日，搭载天舟四号货运飞船的长征七号运载火箭，在我国文昌航天发射场升空，成功进入预定轨道。
长征七号运载火箭采用液态氢作为火箭的燃料，原因是液态氢具有（）A．较大的比热容B．较低的沸点C．较大的热值D．较小的质量5．下列说法正确的是（）A．热机消耗的燃料越少其效率就越高B．在搓手取暖过程中内能转化为机械能C．内能小的物体也可以将热量传给内能大的物体D．夏天洒水降温是利用水的比热容较大的特性6．如图所示，在试管内装适量水，用橡胶塞塞住管口，将水加热至沸腾一段时间后，橡胶塞被推出，管口出现大量“白气”。
根据实验情景，下列说法中正确的是（）A．试管内能逐渐增加，是通过做功的方式改变的B．温度升高的过程中，水分子无规则运动的剧烈程度增加C．管口出现大量“白气”属于汽化现象D．水蒸气推出橡胶塞的过程中，水蒸气的内能转化为橡胶塞的机械能7．下列说法中不正确．．．的是（）A．一桶水的比热容与一杯水的比热容相同B．使燃料燃烧更充分，可以增大燃料的热值C．用锯条锯木板时，锯条发热，锯条的内能增加D．物体的温度越高，所含的热量越多8．如图是内燃机的某冲程工作示意图，以下改变内能方式与此相同的是（）A．勺子放在热汤里，勺子会变热B．铁锤反复敲打铁钉，铁钉变热C．饮料放在电冰箱里，饮料变凉D．用嘴向手“哈气”，手会变暖和9．如图所示是用塑料瓶自制的火箭模型，在瓶子的侧壁安装一个遥控电火花发生器，按下按钮会产生电火花。
2023-2024学年秋学期人教版九年级英语Unit 14单元综合测试卷附答案解析
2023-2024学年秋学期九年级英语Unit14单元综合测试卷(满分100分)Ⅰ.单项选择(每小题1分,共10分)1.I will congratulate him his good results in the singing competition.A.ofB.withC.onD.in2.What a!You put your toys everywhere on the ground.Put them away right now.A.pityB.messC.luckD.method3.I'm to my English teacher because she often supports me sticking to my dream.A.carefulB.thankfulC.harmfuleful4.I'd like to thank my English teacher because he often me to study hard.A.warnsB.avoidsC.encouragesD.prevents5.We hope a computer on every student's desk in the future.A.there isB.there wasC.there will beD.there has been6.When I looked to the east of the Grand Canyon,the sky grey.A.becomesB.becameC.was becomingD.has become7.We all want to know who can the physics problem.You know,it's very difficult.A.work outB.take outC.set outD.look out8.—It's said that the astronauts will say hello to us on Mid⁃Autumn Day.—Wonderful!I'm it.A.getting along withB.staying away fromC.looking forward to9.You should be your decisions.If you make a wrong decision,you will be regretful.A.busy withB.thankful toC.responsible forD.tired of10.—Do you know last week?—They went to Jinggangshan,a famous revolutionary resort(革命胜地).A.how did they go thereB.how they went thereC.where did they goD.where they wentⅡ.完形填空(每小题2分,共20分)One day a professor entered the classroom and told the students they would have an11right away. Then the professor12the papers.But the students were confused(困惑的)because there was13but just a black dot(点)in the center of the paper.The professor noticed their14and told them,“I want you to write about what you see there.”15the students were still confused,they started writing.At the end of the class,the professor took all the answer sheets and started reading the answers in front of the students.All of them16the black dot and tried to explain its position and something like that.After the professor finished reading,the whole class was 17.They were all worried that they18the exam.The professor began to explain,“Don't worry.I am not going to give you grades for this.I just want you to think about something.Here everybody focused on the black dot instead of the white paper.It is the same aswhat we do in our lives.The white paper is just like our whole life and the black dot is the19we face every day.We just care too much about things like a lack of(缺乏)money for beautiful clothes,but we20 see that these problems are very small compared to our whole life.We should remember that there are more valuable things in life.”We all live only once.So we should focus attention on the truly valuable things.11.A.argument B.influence C.examination D.illness12.A.gave out B.gave up C.gave away D.gave in13.A.something B.anything C.everything D.nothing14.A.conversations B.attention C.expressions D.introductions15.A.Although B.Unless C.Before D.Until16.A.described B.reviewed pleted D.avoided17.A.silent B.active C.proud D.excited18.A.passed B.failed C.took D.succeeded19.A.situation B.failure C.life D.problems20.A.often ually C.seldom D.alwaysⅢ.阅读理解(每小题3分,共30分)AMeiyu is from Turkey(土耳其).She is the youngest child of her family.After high school,many people learned English or Japanese,but Meiyu decided to learn Chinese at university.She learned Chinese for four years at Ankara University in Turkey,and got her name Meiyu there.Meiyu fell in love with Chinese after going to university.She became more interested after she knew more about Chinese history.In the beginning many people did not understand her decision.But they all said Meiyu had made a right choice when she graduated from university in2013.Since then,more Chinese have been visiting Turkey.The trade between the two countries also requires Chinese⁃speaking people.“Speaking Chinese means more job opportunities,”said Meiyu.Now Meiyu has been in Wuhan,China for about two years.Besides going on studying Chinese,she shows great interest in Chinese kung fu as well,so she spends her free time on kung fu training with her coaches.Not only can kung fu help improve her health,but she is also fascinated by the history and culture behind it.Meiyu said,“The more I know about China,the luckier I feel to have been here.But the truth is that fun and pain go together in the process of learning.”Meiyu will graduate in June this year.Her friends want her to stay in China,but her parents hope she can come back home.Meiyu thinks it is difficult to decide.“Even if I go back to Turkey,I will choose Chinese language education as my job,”said Meiyu.21.Where did Meiyu learn Chinese for four years?A.In China.B.In Turkey.C.In India.D.In Australia.22.What's probably the meaning of the word“opportunities”in this passage?A.观点B.顺序C.机会D.组织23.Why does Meiyu spend her free time on kung fu training with her coaches?A.Because she is interested in kung fu.B.Because she has to learn kung fu.C.Because she wants to teach kung fu.D.Because she wants to stay healthy.24.Who wants Meiyu to come back home after her graduation in June?A.Her parents.B.Her friends.C.Her relatives.D.Her classmates.25.What can you learn from the passage?A.Meiyu lost courage when she was in Wuhan.B.Chinese culture has influenced Meiyu.C.It's easy for Meiyu to live in China.D.Many people didn't understand Meiyu.BIn American schools there is something called Homecoming Day.Many high schools and colleges with a football team have a homecoming game.This can be the most important thing of the year except commencement day(毕业典礼日).Students plan Homecoming Day for many weeks in advance(预先).Several days before Homecoming,students start to decorate the school.There are signs to wish luck to the team,and many other signs to welcome all the graduates.Many people still come to Homecoming twenty or thirty years after their graduation.The members of school clubs build booths(摊位)and sell lemonade,apples and sandwiches.Some clubs help to welcome the visitors.During the day people like to look for teachers that they remember from long ago.Often they see old friends and they talk together about those happy years in school.Everyone soon comes to watch the football game.When the game is half over,the band comes onto the field and plays school songs.Another important moment is when the Homecoming Queen or King appears.All the students vote a most popular student as the Homecoming Queen or King.It is a great honor(荣誉)to be chosen.Homecoming is a happy day,but it is not perfect unless the football team wins the game.Even if the team loses,the students still enjoy Homecoming Day.Some stay at the school to dance,and others go to a party.For everyone it is a day worth remembering.26.When do students begin to make a plan of Homecoming?A.Many weeks before the day.B.Three days before Homecoming.C.The day before Homecoming.D.When the guests arrive.27.What does the underlined word“vote”mean in English?A.planB.regretC.chooseD.support28.Which of the following is NOT done on Homecoming Day?A.To call on teachers they remember.B.To watch the football game.C.To go home to see their family.D.To see old friends.29.Who can probably become the Homecoming Queen or King?A.The teacher who is most popular with the students.B.The student who is liked most by other students.C.The player who plays best in the game.D.The student who is liked most by teachers.30.In which part of a magazine can we read the passage?A.School LifeB.Sports EventsC.American HistoryD.Learning HabitsⅣ.短文填空(每小题2分,共20分)阅读短文,根据上下文和首字母提示写出所缺的单词,使短文内容完整、连贯。
人教版九年级全一册《第14章 内能的利用》单元测试卷(含解析)
人教版九年级全一册《第14章内能的利用》2022年单元测试卷（1）一、单选题（本大题共11小题，共44分）1.（4分）从能量转化的角度看，下列关于一台四冲程内燃机在一个循环中的描述正确的是( )A. 压缩冲程存在着化学能转化为内能的过程B. 压缩冲程存在着内能转化为机械能的过程C. 做功冲程具有很明显的机械能转化为内能的过程D. 做功冲程存在着化学能转化为内能的过程2.（4分）6.（2022新洲区期中）如图甲，在一个配有活塞的厚玻璃简里放一小团硝化棉，迅速下压活塞，硝化棉燃烧。
如图乙是某汽油机工作的某一个冲程。
下列说法中不正确的是（）A. 甲图中，活塞与玻璃筒摩擦产生的热量是导致棉花燃烧的主要原因B. 甲图中，迅速下压活塞的过程中，活塞的机械能转化为空气内能C. 乙图所示冲程靠飞轮的惯性完成，并吸入空气和雾状汽油D. 乙图所示冲程的下一个冲程，会发生与甲图相同的能量转化3.（4分）四冲程内燃机在一个循环中，内能转化为机械能的冲程是()A. 吸气B. 压缩C. 做功D. 排气4.（4分）“东街回来了”，如图为我区网红打卡景点东街，以下关于小航同学在东街的所见所闻解释正确的是()A. “灯虎锅魁”在平底锅上煎炸，是通过做功增加锅魁内能B. “招牌酸辣粉”香气四溢说明分子在不停地做无规则运动C. “东街有鱼”用铁锅煮鱼是因为铁的比热容大D. “河水豆腐”冒的白气是水蒸气5.（4分）如图所示，哪种机器是不可能制造出来的()A. 使用蓄电池的电动汽车B. 一种设想中的永动机C. 蒸汽机车D. 飞机6.（4分）4月16日，神舟十三号载人飞船返回舱成功着陆。
穿越大气层时，返回舱与空气剧烈摩擦，宛如一颗“火流星”。
汽油机的四个冲程中，内能增大方式与此相同的是()A. 吸气冲程B. 压缩冲程C. 做功冲程D. 排气冲程7.（4分）下列有关热机的说法中不正确的是()A. 热机工作的过程是将燃料燃烧获得的内能转化成机械能的过程B. 为了防止热机过热，通常用水来降温，是利用水的比热容大的特性C. 通过技术改进，热机效率可达100％D. 热机的燃料燃烧是否充分，其热值都不变8.（4分）2019年11月3日，我国成功利用“长征四号乙”运载火箭将“高分七号”卫星顺利送入预定轨道，该卫星是我国首颗亚米级高分辨率光学传输型立体测绘卫星。
2022-2023学年人教版九年级物理第14章内能的利用单元测试卷含答案
人教版九年级物理第14章《内能的利用》单元测试（含答案）时间：60分钟满分：70分一、填空题（每空1分，共14分）1.汽油机在做功冲程中把能转化为机械能，工作时把电能转化为机械能（选填“电动机”或“发电机”）．2.如图所示，小汽车行驶时发动机工作时，内部能量转化形式是；从小汽车的外型判断，小汽车在水平路面行驶时对地面的压强小汽车静止时对地面的压强（填“大于”、“小于”或“等于”）3.能源利用的实质是能量的转化或转移，在此过程中能量的总量是（填“逐渐减少”、“保持不变”或“逐渐增加”）．因为能量的转化或转移具有性，所以，所以，人类可利用的能量不断减少，因此，开发利用新能源是当务之急．太阳能是一种新能源，它属于（可再生/不可再生）能源．4.如图所示，是小汽车内的四冲程汽油机工作的部分冲程示意图．其中图是做功冲程，若汽油机飞轮转速为1200转/分，那么1秒内汽油机对外做次功．5.中国南海海底探明有大量的“可燃冰”，同等条件下，“可燃冰”完全燃烧放出的热量达到煤气的数十倍，说明“可燃冰”的很大；以10倍的关系粗略计算，1kg“可燃冰”完全燃烧放出的热量可以使kg的水从20℃加热至60℃．[q煤气=4.2×107J/kg，水的比热容c=4.2×103J/（ kg•℃）]．6.某型号小汽车油箱容积为40L，已知汽油密度为0.7×103㎏/m3，热值为4.5×107J/㎏．满箱汽油完全燃烧，可以释放J的热量；汽车以20m/s的速度在平直公路上匀速行驶，受到的阻力为1000N，此时牵引力的功率为kW；若该车效率为20%，加满一箱汽油，在上述运动情况下最多可以直线行驶的距离为km．二、选择题（每题2分，共20分）7.下列关于热机和环境保护的说法，正确的是（)A．热机的大量使用会造成环境污染B．热机产生的噪声，可以被消声器完全消除C．热机排出的废气都是无害气体D．热机的效率可以达到100%8.从本质上看，内燃机的工作能量来源于（）A．机械能B．化学能C．内能D．化学能和内能9.当拖拉机出现故障而使柴油机转速急剧增加，正常操作已经不能使它停转（这种故障叫“飞车”）时，下列操作正确的是（）A．捂住进气口B．立即找一个隔热的东西捂住排气口C．脚踏刹车板，同时手拉制动器D．让它空转，等油全部耗完自动停下10.下列关于汽油机和柴油机的主要区别，其中错误的是（）A．柴油机的气缸上是喷油嘴，汽油机的顶部有火花塞B．在做功冲程中，柴油机的点火方式叫点燃式，汽油机的点火方式叫压燃式C．柴油机比汽油机笨重，但燃料便宜D．柴油机吸入气缸的只是空气，汽油机吸入气缸的是汽油和空气的混合物11.关于四冲程汽油机的工作过程有以下几种说法：①在做功冲程中，是机械能转化为内能；②在做功冲程中，是内能转化为机械能；③只有做功冲程是燃气对外做功；④汽油机与柴油机点火方式相同．其中说法正确的是（）A．只有②③④B．只有①③C．只有②④D．只有②③12.甲、乙两台热机，甲的效率比乙的低，其含义是（）A．甲热机消耗的燃料多B．甲热机比乙热机做功少C．甲热机的功率比乙热机的小D．做相同的有用功，甲损失的能量比乙损失的多13.如图所示为汽油机工作过程的示意图，按照吸气冲程、压缩冲程、做功冲程和排气冲程的顺序排列，正确的是（）A．甲乙丙丁B．甲丙乙丁C．甲丁丙乙D．甲丙丁乙14.下列流程如图是用来说明单缸四冲程汽油机的一个工作循环及涉及到的主要能量转化情况．关于对图中①②③④的补充正确的是（）A．①做功冲程，②内能转化为机械能，③压缩冲程，④机械能转化为内能B．①压缩冲程，②内能转化为机械能，③做功冲程，④机械能转化为内能C．①做功冲程，②机械能转化为内能，③压缩冲程，④内能转化为机械能D．①压缩冲程，②机械能转化为内能，③做功冲程，④内能转化为机械能15.水电站发电时，水从高处向下冲击水轮机的叶轮，转动的叶轮带动发电机发电．在这个过程中，能量的转化顺序为（）A．势能﹣电能﹣动能B．势能﹣动能一电能C．电能一动能﹣势能D．动能一势能一电能16.从原理的发现到实际的应用，往往要解决许多技术上的难题．如换向器的发明就能使电动机持续转动下去．如图的汽油机只有在做功冲程中，燃气才给活塞一个动力，但汽油机却可以连续工作，其中关键部件是（）A．火花塞B．连杆C．曲轴和飞轮D．进气门和排气门三、实验探究题（每空1分，共18分）17.学习了燃料的热值后，小慧自己设计实验来探究酒精和碎纸片的热值大小。
新人教版初中九年级下册英语Unit 14单元测试卷(含听力材料及答案解析)
Unit 14 测试(限时：60分钟满分：100分)一、单项选择(每小题1. 5分，共15分)1. A little effort every day, you ________ a big difference.A. makesB. madeC. have madeD. will make2. Sue wasn't happy because she ________ the concert given by her favorite singer.A. missesB. missedC. will missD. is missing3. The earth is a planet and it ________ around the sun.A. goesB. goC. will goD. went4. We set up this group ________ disabled people like Ben Smith.A. helpB. to helpC. helpingD. helped5. —________ will you go back to your hometown?—In a week.A. How longB. How farC. How soonD. How often6. —Do you still remember ________ this group of friends in 2016?—Yes. But I forgot where I ________ them.A. seeing；meetB. to see；metC. seeing；metD. seeing；meeting7. His parents are ________ him because his scores ________ in the final exam.A. proud of；doubledB. pride of；doublingC. proud of；doublesD. pride of；doubled8. I ________ what you said，but I don't ________ you.A. believe；believe inB. believe in；believeC. believe；believeD. believe in；believe in9. It's better to ________ when you meet difficulties ________ you in the future.A. keep your cool；ahead ofB. get nervous；ahead ofC. keep cool；aheadD. look back at；ahead10. You should ________ the preparation of this party. Don't ________.A. be thirsty for；set outB. be responsible for；make a messC. separate from；be in a rowD. be thankful to；make a mess二、完形填空(每小题1. 5分，共15分)Many people go to school for an education. They ________11languages and other subjects. Others go to ________12 to learn a skill so that they can make a living. ________13 no one can learn everything from school. A teacher，no matter ________14 he knows，can not teach his students everything they ________15 to know. So，much more is to be learned ________16school by the students themselves. It is always ________17 to know how to study by oneself than to memorize some formulas (公式). Formulas are easy to remember but difficult to use in ________18 out maths problems. As we all know，great ________19，such as Einstein，Newton and Galileo，didn't learn many things from school. But they were all so successful that they ________20so many things for us.11. A. speak B. learn C. make D. dislike12. A. school B. home C. cinema D. park13. A. If B. But C. Or D. Though14. A. how many B. how soon C. how much D. how often15. A. stop B. forget C. fail D. want16. A. outside B. in C. within D. from17. A. important B. most important C. unimportant D. more important18. A. getting B. working C. taking D. doing19. A. scientists B. doctors C. students D. workers20. A. celebrated B. invented C. shared D. remembered三、阅读理解(每小题3分，共15分)Moving onThe end of school is here at lastIt has come so very fastWe look ahead with such delightThe future looks so very brightIt's now time to say goodbyeWe're all leaving junior highOther people, other placesDifferent schools, different facesPlease don't feel bad or grieveOn the day you take your leaveBut celebrate and raise your glassAnd say goodbye to all your classOther subjects, a new classDifferent teachers and exams to passFor everyone in this hallA new life awaits you allSo don't look sad or cryYou're moving on senior high21. According to the poem, ________ has come so fast.A. the end of schoolB. the examC. the celebrationD. the new class22. What does the underlined word “delight” mean?A. Sickness.B. Sadness.C. Happiness.D. Fairness.23. What's waiting for you all according to the poem?A. Too many subjects.B. The same school.C. Similar faces.D. A new life.24. This poem can probably be used ________.A. at a welcome partyB. at a birthday partyC. on a prom nightD. on a Silent Night25. The purpose of the poem is to ________.A. tell us to say thanks to all our teachersB. encourage us to be positive and move on our senior highC. tell us that we should do something for our junior high schoolsD. remind us of our happy junior high life四、词汇运用(每小题1分，共10分)A)根据句意及首字母提示写单词26. I was t________ for their help and support.27. He tried his best to finish the t________ on time.28. They stood in a r________ to put their money in the box.29. They did some s________ about the students' after-school activities. Here are theresults.30. She's a brave girl. I believe she can o________ all the difficulties in her life.B)根据句意用括号内所给单词的适当形式填空31. I would fly to you if I had ________ (wing).32. She is the new ________ (manage) and you will work for her.33. I ________ (congratulation) you on your success with all my heart.34. Taizhou and Changzhou ________ (separate) by the Yangtze River，and a newbridge will connect the two cities in the near future.35. Their playground is twice as large as ________ (we).五、任务型阅读(每小题3分，共15分)It was the beginning of a new term. As a new teacher in that school，I didn't know any of the students. A little girl was standing at the gate of the classroom. She looked very shy.I walked up to her and asked why she stood there. But she said nothing. Then a boy shouted，“She is from Grade Four，the wors t student in her grade. ” I looked at the little girl. ①She didn't seem to be the smart kind. I understood why her teacher asked her to stay in Grade Three. I took her hand and led her into the classroom.“Sit here. Now you are my student and I'm your tea cher，” I said. She still said nothing，but suddenly began to cry.I later learnt that her parents died in a car ②________. She became sad and didn't like talking to others after that.She learned very slowly. I gave her respect and never looked down upon(鄙视)her as I know everybody deserves(值得)respect. I helped her after school，and she was making progress little by little. ③随着时间流逝，她不像以前那般害羞。
九年级英语全册Unit 14 单元测试卷-人教版(含答案)
九年级英语全册Unit 14 单元测试卷-人教版（含答案）A类基础性练习一、请听下面5段对话。
每段对话后有一小题，从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后，你都将有10秒钟的时间回答有关小题和阅读下一小题。
每段对话读两遍。
( )1. What will Kate do next?A. Make a call.B. Send a card.C. Go shopping.( )2. What was the girl looking for when they first met?A. Her pencil box.B. Her library card.C. Her ID card.( )3. How many clubs does Bill’s school have?A. One.B. Two.C. Three.( )4.How often did the man make a survey when he was a high school student?A.Once a week.B.Once a month.C.Once a term.( )5.What does the man mean?A.He isn’t interested in swimming at weekends.B.The woman shouldn’t go swimming at weekends.C.The woman should go swimming with her friends at weekends.二、请听下面4段对话。
每段对话后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项。
听每段对话前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题给出5秒钟的作答时间。
每段对话读两遍。
请听第1段对话，回答第6至第7小题。
( )6. Who is Lily’s new friend?A. Emma.B. Janet.C. Nancy.( )7. What does Lily’s new friend always wear?A. A white dress.B. A red dress.C. Red shoes.请听第2段对话，回答第8至第9小题。
Unit+14单元测评卷2023-2024学年人教版九年级英语全册
Unit 14I remember meeting all of you in Grade 7.一、单项选择(共10小题,计10分)()1.(2021·湖北恩施州中考改编)—Congratulations! You won first prize at the speech contest.—.A. Thank you very muchB. You're welcomeC. With pleasureD. Never mind()2.Their plants don't grow very well, but look really good.A. weB. ourC. oursD. ourselves()3.(2022·江西三模改编)—Wow, a new computer! What a big surprise!—You'd better read the carefully before you use it.A. pricesB. instructionsC. resultsD. goals()4.(2022·山西大同二模改编)—What can you see from the eyes of the kids in the rural areas?—I can see they knowledge.A. are thirsty forB. are known forC. are responsible forD. are sorry for()5.(2021·湖北武汉中考) —Do you have any new findings in the report?—Yes, we have 10,000 people, and 90% of them would like to buy our new products.A. disappointedB. surveyedC. examinedD. listed()6.(2021·湖南株洲中考改编) We carry forward the spirit of serving the people whole-heartedly.A. mightB. shouldC. couldn'tD.needn't()7.(2022·辽宁黑山教师进修学校二模)—If you want to avoid the rush hour, you'd better early.—You are right. There are always lots of cars, buses, taxis...on the road.A. take outB. set outC. work outD. try out()8.(2022·广西玉林中考)—As far as I know, there a high-speed train from Yulin to Shenzhen in 2023.—Yeah! It will be more convenient for the people in Yulin.A. will beB. hasC. isD. will have()9.(2022·重庆中考B卷)新风向时代精神Zhang Guimei isn't in good health, she works hard to help her students.A. AlthoughB. IfC. BecauseD. When()10.(2022·重庆中考A卷)—Can you tell me ?—Yes. In the language centre.A. where will the speech competition be heldB. where the speech competition will be heldC. when will the speech competition be heldD. when the speech competition will be held二、(2021·山西中考改编)完形填空(共10小题,计10分)High school life is coming to an end. Every student got a gift, but few gifts can be nicer than that Linda got from her dad.What's11about it? It's a long story. Ever since kindergarten (学前班), Linda's father had invited each of his daughter's teachers to write some words about her in a notebook. Her teachers 12their beautiful days with Linda from kindergarten to high school. And Linda's father kept the notebook 13she graduated from high school. The final gift was so 14and moving that it made her cry a lot.Linda's father has kept this notebook as a15these years and the notebook has become yellow. "It's clearly believed that everyone else in my life knew about it," Linda said. "The words from every teacher 16me. They help me remember my years. Thanks to it, I can look back at the past school years. I can also enjoy the happy memories for the 17of my life. My teachers mentioned my smile. But what they wrote about me most is my deep love for life. I 18imagine the gift is so special. I would keep it for 19forever. It will be the most valuable thing in my life."Maybe we should think about using this gift from Linda's father as inspiration for gift-giving. The most important thing is something meaningful20it. Sometimes, the best gift is not the most expensive one.()11. A. clear B. special C. strange D. thankful()12. A. cut out B. made up C. wrote down D. separated from()13. A. if B. until C. since D. although()14. A. senior B. interesting C. relaxing D. surprising()15. A. secret B. promise C. hope D. task()16. A. hurt B. worry C. encourage D. disappoint()17. A. rest B. shape C. beginning D. control()18. A. always B. often C. never D. sometimes()19. A. yourself B. herself C. himself D. myself()20. A. toward B. behind C. against D. for三、阅读理解(共18小题,计45分)A(2022·山西大同二模改编)Let's take a look at some of the interesting high school and university graduation traditions around the world.China College graduates in China celebrate their graduation as they wish.Some female graduates run to rent wedding dresses instead of wearing graduation gowns(长袍) and caps. Parents usually don't attend graduation ceremonies, so the day is more about celebrating with classmates.Japan Celebrations for senior high school students usually last about an hour and take place during the week. Students often wear their school uniforms. Ceremonies usually take place in March just before the beginning of a new school year.The United States Students can expect several graduation ceremonies: preschool, elementary school, high school, college, etc. So the families have more chances to take family photos.The United Kingdom Graduation ceremonies only appear at the university level. The graduates are always waiting in line until their names are called aloud.PhilippinesAt many high schools, ceremonies usually take place in April. Graduatingstudents will wear beautiful garlands(花环)and are encouraged to wearonly their school uniforms.()21.Which country will celebrate the graduation in March?A. Japan.B. America.C. Philippines.D. The UK.()22.What's the difference between the US and the UK?A. Graduation ceremonies only take place in the university in the UK.B. Families hardly like taking photos with their graduating kids in the US.C. In both countries, graduating students are always waiting for being called.D. Graduating students are encouraged to wear whatever they like.()23.Which of the following is TRUE?A. The ceremony usually lasts about ninety minutes on the weekday in Japan.B. Graduating students in China always celebrate the graduation with their classmates.C. In Philippines, graduating students will wear caps and gowns with beautiful garlands.D. Students in elementary school also have their graduation ceremonies in Britain. ()24.Where will we find the passage?A. In a storybook.B. In a magazine.C. In an ad.D. In a guidebook.BA class teacher, in my opinion, plays an important role in a child's development. Every year when my daughter moves to a new class, I have a usual big worry — hernew class teacher. This year, she is moving to Class Three and I can't wait to see how things are going on.Last year, my daughter did not like her teacher at all. It was so bad that she did not look forward to school. It was a year full of trouble and worries.This year, Miss Purity is gentle and humorous. It's hard not to like her. Here are the changes in my daughter.She becomes an early bird. Last year, mornings were like a fight because I had to force Tasha to hurry up when she was preparing for school. I had to pull her out of bed, tell her to take breakfast and drive her to school. But now, our mornings are like a party. She wakes up early, prepares everything at a high speed and then rushes to school to be with Miss Purity.She is happy. She enjoys school and school work and keeps talking about what they did at school when she comes home.She is responsible. She used to be careless and forgetful. But now she never forgets even her water bottle at school. She makes her bed and helps in the kitchen.Her diary is full of praise. The diary is the tool of communication between the teacher and the parents. Last year, her diary was always full of negative reports. One time, she poured water in a child's lunchbox, and another time she threw another kid's textbook in the toilet. Now she begins to share her snacks with those who do not have anything. She always volunteers to clean the blackboard, the teacher's desk and chair.She does well in school. Last year, finishing her classwork was such a big problem. She had to do it at home. But now, she finishes both the classwork and the homework at school.()25.What is the big worry of Tasha's father every year?A. Who will be Tasha's class teacher.B. Which class Tasha will be in.C. How Tasha goes to school in the morning.D. What Miss Purity looks like.()26. What did Tasha do when she didn't like her class teacher?A. She had a fight with her father in the morning.B. She didn't want to go to school.C. She missed a lot of classes.D. She refused to do the classwork and the homework.()27. What does the phrase "early bird" mean in the passage?A. It is a lovely little child.B. It is the most beautiful bird.C. It is someone who lives alone.D. It is someone who gets up early.()28.Which of the following is not true about Tasha's past?A. She couldn't finish her classwork at school.B. She often forgot things at school.C. She didn't get on well with her classmates.D. She was careful and friendly.C(2021·河北中考)Each of us has dreams and goals for our future. What makes us study and improve each day is closely connected with our personal dreams and goals.But why do you have dreams and goals, you still end up with nothing? What separates successful people from the dreamers is their persistent (坚持不懈的) action.When you learn your lessons in school, you must work hard and not give up. You will often find some of your lessons very hard. Try and keep trying, and you'll be sure to successfully deal with any difficulty you meet with. If we have a hard lesson today, let us try our best to learn it well and then we shall be prepared for a harder one tomorrow.This is the famous formula (公式) for success:Dream>Believe>AchieveMost people have what they want (Dream) and think they can realize their dreams (Believe). And then they do nothing. They just imagine their dreams can come true. When they get tired waiting and lose a lot, they get bored. They say angrily how terrible their life is.I personally believe that if you really want to achieve your dreams and goals in life, you have to add one thing to your success formula:Dream>Believe>Act>AchieveFor me, act is the most important thing for success, and that's to Take Persistent Action (Act). If you say, "I can't do it" and give up, you can never do anything valuable. However, "I'll try" creates wonders. Let's remember that there will be obstacles in our life. We must face them bravely and solve them. Success is not something that falls from the sky. Most successful people made their dreams come true because of their persistent action.Please remember: Action is the bridge that connects our dreams and goals to reality.()29.What should you do when you find your lessons very hard?A. Ask people for help.B. Try and keep trying.C. Get ready to create wonders.D. Prepare for a harder one.()30.Which does the writer add to the famous formula?A. Act.B. Achieve.C. Connect.D. Create.()31.What does the underlined word "obstacles" mean?A. Dangers.B. Imaginations.C. Wonders.D. Difficulties.()32.Why does the writer use the formula "Dream>Believe>Act>Achieve"?A. To support his idea.B. To ask readers to explain it.C. To show what his goals are.D. To compare it with a bridge.()33.Which of the following can be the best title for the passage?A. Doing Something ValuableB. Studying Hard and Making ProgressC. Realizing Dreams with Persistent ActionD. Separating Successful People from DreamersD请阅读下面短文,根据短文内容,从方框内所给的选项中选出能填入空白处的最佳选项,使短文通顺、意思完整。
人教版九年级物理第14单元综合复习(答案)
第十四章内能的利用第1节热机01知识管理1．热机定义：利用__内__能做功的机械叫热机．工作原理：__内__能转化为__机械__能．内燃机：燃料直接在发动机的汽缸内燃烧产生动力的热机，常见的内燃机有__汽油机__、__柴油机__．注意：热机工作时的能量转化过程可以表示为：燃料的化学能――→燃烧工作物质的内能――→推动活塞或飞轮机械能2．汽油机构造：进气门、排气门、__火花塞__、活塞、汽缸、连杆和曲轴．四个冲程：吸气冲程、__压缩__冲程、__做功__冲程和排气冲程．压缩冲程中__机械__能转化为__内__能；做功冲程中__内__能转化为__机械__能．注意：一个工作循环中只有做功冲程是靠燃气推动活塞做功，其他三个冲程是靠安装在曲轴上的飞轮的惯性来完成．3．柴油机和汽油机的不同之处：柴油机汽缸顶部有__喷油嘴__，汽油机汽缸顶部是__火花塞__．注意：(1)柴油机的点火方式叫做压燃式，汽油机的点火方式是点燃式；(2)吸气冲程里，汽油机吸进汽缸的是汽油和空气，柴油机吸进的只有空气；(3)内燃机一个工作循环有四个冲程，活塞往复运动两次，曲轴和飞轮转动两周，两次能量转化对外做功一次．02基础题知识点1热机1．火箭是热机的一种，工作时是将__内__能转化为__机械__能．2．热机是利用内能做功的机械，直接在发动机汽缸内燃烧燃料从而产生动力的热机叫__内燃机__，是现代社会使用最为广泛的一种热机，根据燃料的不同，可分为__汽油机__和__柴油机__两大类．3．如图所示的四种交通工具，不用热机作为动力机械的是(A)A B C D知识点2汽油机柴油机4．四冲程汽油机工作时，仅__做功__冲程使汽车获得动力，其他三个冲程是利用__惯性__完成的．5．如图是单缸四冲程汽油机的__做功__冲程，把内能转化为机械能．此冲程中，汽缸内的气体内能__减小__(填“增大”或“减小”)．6．一般汽油机的一个工作循环分为四个冲程，每个冲程都伴随着能量的转移或转化，其中主要将机械能转化为内能的冲程是(B)A．吸气冲程B．压缩冲程C．做功冲程D．排气冲程7．下列关于汽油机和柴油机的主要区别，说法错误的是(C)A．柴油机的汽缸顶部有喷油嘴，汽油机的顶部有火花塞B．柴油机比汽油机笨重C．在做功冲程中，柴油机的点火方式是点燃式，汽油机的点火方式是压燃式D．柴油机吸入汽缸的是空气，汽油机吸入汽缸的是汽油和空气的混合物03中档题8．如图所示是四冲程汽油机中的两个冲程，其中图甲所示是__排气__冲程示意图；在四个冲程中，只有__做功__冲程对外做功．9．如图是汽油机工作的四个冲程(顺序已打乱)，请按一个工作循环的过程，将四个图重新排序：__BDAC__．10．如图所示是某热机工作的两个冲程，其中把内能转化成机械能的是__甲__图，已知该热机的铭牌上标有3 600 r/min.则热机每秒做功__30__次．11．如图所示，图A、B、C、D是四冲程汽油机的工作示意图，图E、F是演示实验的示意图，C图是__做功__冲程，与它原理相同的是__F__图所示的演示实验．汽油机的工作示意图中，机械能转化为内能的冲程是__B__图(后两空填字母)．12．在汽油机的做功冲程中，高温、高压的燃气推动活塞运动做功，则下列说法正确的是(C)A．燃气的内能减少，温度升高B．燃气的内能增加，温度升高C．燃气的内能减少，温度降低D．燃气的内能增加，温度降低13．如图所示实验，试管口木塞冲出过程中(D)A．试管口出现的白雾是水蒸气B．试管口出现白雾说明水蒸气内能增加C．能量转化情况与内燃机压缩冲程相同D．水蒸气对木塞做功，水蒸气的内能减少04拓展题14．科学家发明了一款单缸六冲程内燃机，它每一个工作循环的前四个冲程与单缸四冲程内燃机相同，如图时刻是内燃机的__做功__冲程，活塞下降时，燃气内能__减少__(填“减少”或“增加”)．在第四冲程结束后，立即向汽缸内喷水，水在高温汽缸内迅速汽化成高温、高压水蒸气，推动活塞再次做功，水蒸气温度__降低__(填“升高”“降低”或“不变”)，这样燃烧同样多的燃料获得了更多的机械能．为进入下一个工作循环，这款内燃机的第六冲程是__排气__冲程．第2节热机的效率01知识管理1．热值定义：某种燃料__完全__燃烧放出的热量与其质量的__比值__，叫做这种燃料的热值．公式：Q放＝__qm__．(气体燃料完全燃烧放出热量的公式：Q放＝__qV__)单位：固体或液体燃料的热值的单位是：__焦每千克(J/kg)__；气体燃料的热值的单位是：__焦每立方米(J/m3)__．注意：热值表示燃料在完全燃烧时把化学能转化为内能的本领大小，是燃料本身的一种特性，只与燃料的种类有关，与燃料的质量、体积、是否完全燃烧无关．2．热机的效率定 义：用来做__有用功__的那部分能量，与燃料__完全燃烧__放出的能量之比，叫做热机的效率．计算公式：η＝W 有用Q 放×100%，其中W 有用＝F·s 或Pt ；Q 放＝mq 02 基础题知识点1 燃料的热值1．“可燃冰”是一种新型能源．同等条件下，“可燃冰”完全燃烧放出的热量可达到煤气的数十倍，这说明“可燃冰”的__热值__很高．2．“西气东输”工程已全线竣工，输送的燃料为天然气，这是利用了燃气__热值__较大的特性，而且使用天然气时对环境无污染.0.5 m 3天然气完全燃烧放出的热量是__4.1×107__J(q 天然气＝8.2×107 J/m 3)，天然气用掉一部分后，剩余天然气的热值__不变__(填“变大”“变小”或“不变”)．3．煤气的热值为3.9×107 J/m 3，完全燃烧后放出7.8×103 J 的热量，燃烧煤气的体积为__2×10－4__m 3.沼气的热值为1.9×107 J/m 3，对比可知，完全燃烧相同体积的煤气和沼气，煤气放出的热量更__多__(填“多”或“少”)．4．汽油的热值是4.6×107 J/kg ，它的物理意义是(B)A ．燃烧1 kg 汽油能放出4.6×107 J 的热量B ．完全燃烧1 kg 汽油能放出4.6×107 J 的热量C ．完全燃烧1 kg 汽油能放出4.6×107 J/kg 的热量D ．1 kg 汽油含有4.6×107 J 的热量5．关于燃料的热值，以下说法中正确的是(A)A ．燃料的热值与燃料的种类有关系，与燃料的质量和燃烧状况无关B ．燃烧1千克某种燃料放出的热量叫做这种燃料的热值C ．燃料燃烧时，质量越大，热值越大D ．燃料不完全燃烧时的热值比完全燃烧时的热值小知识点2 热机的效率6．热机效率是热机性能的一个重要指标．有一热机，若一部分燃料完全燃烧时，放出的能量为8×103 J ，其中用来做有用功的那部分能量为3×103 J ，该热机的效率是__37.5%__．7．(蚌埠禹会期中)如图是内燃机的能流图，则内燃几的效率可表示为η＝__E 2E __(用字母表示)．8．关于热机的效率，下列说法中正确的是(D)A ．热机做的有用功越多，效率就一定高B ．热机的功率大，效率就一定高C ．热机消耗的燃料越多，效率就越低D ．以上说法都不正确知识点3提高热机效率的途径9．(宜昌中考)为节约能源，需提高热机的效率，下列措施中不能提高热机效率的是(D)A．尽量使燃料充分燃烧B．尽量减少热机部件间的摩擦C．尽量减少废气带走的热量D．尽量增加热机的工作时间03中档题10．有的航天器发动机用氢做燃料，这是因为氢的__热值__很大．燃烧1 m3煤气大约能放出3.9×107 J的热量，某市管道煤气收费标准为0.87元/m3，有一户人家在一个月内燃烧的煤气共放出1.17×109J热量，那么共消耗了__30__m3的煤气，这个月应交煤气费__26.1__元．11．(衡阳中考)2017年5月18日，我国首次在南海成功试采海域可燃冰，可燃冰具有热值大、储量大、能直接点燃等特点．它的热值约为1.4×1010 J/m3，则3 m3的可燃冰完全燃烧后放出的热量为__4.2×1010__J．假设这些热量全部被比热容为4.2×103 J/(kg·℃)的水吸收，可以使__2×105__kg的水温度升高50 ℃.12．(南充中考)在探究水的沸腾实验中，用酒精灯对水进行加热，实验中完全燃烧了5.6 g酒精，则放出了__1.68×105__J的热量；若这些热量的30%被150 g、25 ℃的水吸收，则水升高的温度是__75__℃.[已知水的比热容为4.2×103 J/(kg·℃)，酒精的热值为3.0×107 J/kg，环境为1标准大气压]13．随着生活水平的提高，汽车已进入寻常百姓家庭，它给我们的生活提供了便利，促进了社会的发展．汽车应用了许多物理知识，请你解答：(1)汽油机是汽车的“心脏”．一台四冲程汽油机工作时曲轴转速是1 800 r/min，此汽油机每秒钟完成__15__个做功冲程．(2)当汽油在发动机内燃烧不充分时会冒“黑烟”，这时发动机的效率将__降低__(填“升高”“不变”或“降低”)．14．质量相同的甲、乙两种燃料，完全燃烧放出的热量比为2∶1，则它们的热值比为(A)A．2∶1 B．1∶2C．4∶1 D．1∶415．下列关于热值的说法正确的是(D)A．燃料燃烧越充分热值越大B．2 kg的煤完全燃烧比1 kg的煤完全燃烧热值大C．1 kg煤燃烧放出3×105 J的热量，则煤的热值为3×105 J/kgD．热值是燃料的一种属性，与燃料的质量无关，不同的物质热值一般不同16．(大连中考)某家庭用的燃气热水器，将20 kg的水从10 ℃加热到60 ℃，完全燃烧了0.21 m3的煤气．已知水的比热容为4.2×103 J/(kg·℃)，煤气的热值为4×107 J/m3.试求：(1)煤气完全燃烧放出的热量是多少？(2)水吸收的热量是多少？(3)该热水器烧水的效率是多少？解：(1)煤气完全燃烧放出的热量：Q 放＝qV ＝0.21 m 3×4×107 J/m 3＝8.4×106 J(2)水吸收的热量：Q 吸＝cm(t －t 0)＝4.2×103 J/(kg·℃)×20 kg ×(60 ℃－10 ℃)＝4.2×106 J(3)该热水器烧水的效率：η＝Q 吸Q 放×100%＝4.2×106 J 8.4×106 J×100%＝50% 第3节 能量的转化和守恒01 知识管理1．能量的转化：在一定条件下，自然界中各种形式的能量是可以相互__转化__的．注 意：(1)能量的转化是能量的形式发生了改变；能量的转移是同一种能量从一个物体转移到另一个物体或从同一物体的一部分转移到另一部分，能量的形式并没有变化；(2)判断某一过程中发生了怎样的能量转移或转化，关键是明确这一过程中能量的形式有没有改变，分析消耗了什么能量，获得了什么能量，或者弄清能量从哪一个物体转移到了另一个物体．2．能量守恒定律：能量既不会凭空消失，也不会凭空产生，它只会从一种形式__转化__为其他形式，或者从一个物体__转移__到另一个物体，而在转化和转移过程中，能的总量__保持不变__．注 意：各种能量相互转化时其量值不变，表明能量是不能被创造或消灭的．因此各种形式能的总量一定守恒，单一的某一种形式的能或几种能不一定守恒．如能的转化和转移过程中，能量一定守恒，但机械能不一定守恒．02 基础题知识点1 能量的转化和转移1．如图是我国用长征二号F －T2火箭将天宫二号空间实验室发射升空时的壮观情景．火箭发射升空时，燃料通过燃烧将化学能转化为燃气的__内__能，再转化为火箭的__机械__能．2．如图所示是太阳能LED 照明路灯，它主要由太阳能电池板、LED 灯头等部分构成．LED 是一种发光二极管，通过电流能够发光，可以把电能直接转化成__光__能．水力发电站是将水的__机械__能转化成__电__能．3．中华艺术“烙画”相传源于秦朝，即用火烧铁杆(现代发展为烙铁)在物体上熨出烙痕作画．电烙铁通电升温的过程是能的__转化__过程，“画布”升温的过程是能的__转移__过程．(填“转化”或“转移”)4．生活中能量转化的实例很多．下列描述中，错误的是(B)A．摩擦生热是把机械能转化为内能B．摩擦起电是把电能转化为机械能C．电动机带动水泵把水送到高处是把电能转化为机械能D．燃料燃烧放热是把化学能转化为内能5．下列四种现象中，只发生能的转移而不发生能的转化的过程是(D)A．太阳能发电B．闭合开关后，灯泡发光C．烧水时，水蒸气顶起壶盖D．冬天，用手摸户外的金属杆时手感觉到冷知识点2能量守恒定律6．(泰州中考)汽车刹车的过程，伴随着能量从机械能转化为内能，内能散失到空气中，此过程能量的总和__不变__(填“增大”“不变”或“缩小”)．7．有关能量守恒定律，下列说法错误的是(A)A．能量守恒定律只适用于机械能与内能的相互转化B．只要有能的转化和转移，就一定遵循能量守恒定律C．能量守恒定律是人们认识自然和利用自然的有力保障D．任何一种形式的能在转化为其他形式能的过程中，消耗多少某种形式的能量，就能得到多少其他形式的能量，而能的总量保持不变03中档题8．小丽家有如下设备：煤炉、电饭煲、太阳能热水器．这些设备使用时，将化学能转化为内能的是__煤炉__；将光能转化为内能的是__太阳能热水器__；将电能转化为内能的是__电饭煲__．9．植物进行光合作用时的能量转化是__光能转化为化学能__，钻木取火的能量转化是__机械能转化为内能__．10．如图所示，滚摆在运动过程中，上升的高度会逐渐降低，它的机械能逐渐转化为__内__能，散失到空气中，但能量的总量__不变__(填“增加”“减少”或“不变”)．11．某同学设计并制作了一个“盲人水杯”．水杯底部装上电池后，当杯中的水位到达一定高度，水杯会自动发出音乐声，表示水已盛满．水杯发出音乐声时的能量转化形式是__电__能转化为__声__能．12．随着我国国力的强大，各国都在军事上采取各种措施，为此我国一直在研究导弹拦截系统．拦截弹在运动过程中做曲线运动，燃料助推拦截弹时，燃料的__化学__能转化为拦截弹的__机械__能．拦截弹在整个运动过程中，会受到空气的摩擦力，一部分机械能转化为__内能__，所以它的机械能是__变小__(填“变小”“不变”或“变大”)的．13．芬兰奥卢大学的研究团队研发出一种新型钙钛矿材料，该材料可在光照、温度变化、压力变化的情况下产生电能，有着广阔的应用前景．该材料不能直接实现的能量转化是(D)A ．光能→电能B ．内能→电能C ．机械能→电能D ．化学能→电能14．(兰州中考)从能量转化的角度来看，下列说法错误的是(B)A ．电风扇工作时主要将电能转化为机械能B ．铅蓄电池充电时将化学能转化为电能C ．发电机工作时主要将机械能转化为电能D ．电热水壶工作时将电能转化为内能15．电风扇通电后，扇叶旋转，一段时间后，电动机外壳的温度升高，则下列关于能量转化和守恒的说法中正确的是(B)A ．电能全部转化为机械能，总的能量守恒B ．电能一部分转化为机械能，另一部分转化为内能，总的能量守恒C ．电能全部转化为内能，总的能量守恒D ．电能转化为机械能和内能，机械能守恒04 拓展题16．如图，两只相同的塑料瓶，分别装有相等质量的水和沙子，从斜面的相同高度同时由静止滚下，结果装__水__的瓶子会先到达终点，原因是装水的瓶子在下滚过程中，通过克服摩擦做功把势能转化成的__内能__较少，从而获得较大的动能．小专题(二) 热量的综合计算01 专题概述热量计算的内容包括热传递过程中吸热与放热的计算，燃料燃烧释放热量的计算，热机、锅炉、太阳能集热器等设备热效率的计算．解答此类计算题时，首先要明确热量计算的有关公式：(1)物体升温吸热公式：Q 吸＝cmΔt ＝cm(t －t 0)(2)物体降温放热公式：Q 放＝cmΔt ＝cm(t 0－t)(3)燃料燃烧释放热量公式：Q 放＝mq 或Q 放＝Vq(4)热机效率的计算公式：η＝W Q 放×100% (5)锅炉效率：η＝Q 吸Q 放×100%＝cm 1Δt m 2q （或Vq ）×100% (6)太阳能集热器效率：η＝Q 吸Q 太阳能×100%＝cmΔt P 0St ×100%(其中P 0表示照射功率，S 表示照射面积，t 表示照射时间) 其次要明确解答的基本步骤：一是找温度变化，利用Q 吸＝cmΔt 列出式子；二是利用公式Q 放＝qm 或Q 放＝qV 列出式子；三是如果涉及效率问题，则有公式Q 吸＝ηQ 放．由三个所列的式子即可得出所求的问题．02 专题训练类型1比热容、热值的相关计算1．将200 g、80 ℃的热水和20 ℃的水相混合，混合后的水温为40 ℃，不计热量损失，[c水＝4.2×103 J/(kg·℃)]求：(1)混合过程中热水放出的热量为多少？(2)混合时加入的冷水是多少克？解：(1)热水放出的热量Q放＝c水m1(t0－t)＝4.2×103 J/(kg·℃)×0.2 kg×(80 ℃－40 ℃)＝3.36×104 J(2)不计热量损失，所以Q吸＝Q放＝3.36×104 J∵Q吸＝cm(t－t0)∴冷水的质量m2＝Q吸c（t－t2）＝3.36×104 J4.2×103 J/（kg·℃）×（40 ℃－20 ℃）＝0.4 kg＝400 g2．将装有热牛奶的奶瓶放入室温下盛有温度约为20 ℃，质量约为1 kg水的容器中，热奶的温度约为90 ℃，质量约为0.5 kg，经过一段时间后，再测量容器中的水和奶瓶中的奶的温度均为40 ℃，若牛奶放出的热量全部被水吸收，则牛奶的比热容为多少？[c水＝4.2×103 J/(kg·℃)]解：水吸收的热量Q吸＝c水m水Δt水＝4.2×103 J/(kg·℃)×1 kg×(40 ℃－20 ℃)＝8.4×104 J牛奶释放的热量Q放＝Q吸＝8.4×104 J由Q放＝cm(t0－t)得牛奶的比热容：c牛奶＝Q放m牛奶（t0牛奶－t牛奶）＝8.4×104 J0.5 kg×（90 ℃－40 ℃）＝3.36×103 J/(kg·℃)3．在一标准大气压下，将50 L水从40 ℃加热到沸腾．求：[c水＝4.2×103 J/(kg·℃)](1)水需要吸收的热量．(2)提供这些热量，需要完全燃烧焦炭的质量(q焦炭＝3.0×107 J/kg)．解：(1)水的体积V＝50 L＝50 dm3＝0.05 m3由ρ＝m V得，水的质量：m ＝ρV ＝1.0×103 kg/m 3×0.05 m 3＝50 kg 在一标准大气压下，水的沸点t ＝100 ℃，则水需要吸收的热量：Q 吸＝c 水m(t －t 0)＝4.2×103 J/(kg·℃)×50 kg ×(100 ℃－40 ℃)＝1.26×107 J(2)由题意知，焦炭完全燃烧放出的热量：Q 放＝Q 吸＝1.26×107 J ，由Q 放＝mq 得，需要完全燃烧焦炭的质量：m 焦炭＝Q 放q 焦炭＝1.26×107 J 3.0×107 J/kg＝0.42 kg类型2 热效率的相关计算4．(安徽中考)某家庭用燃气热水器将质量为100 kg 、温度为20 ℃的自来水加热到50 ℃，消耗的天然气体积为1 m 3(假设天然气完全燃烧)．已知水的比热容为4.2×103 J/(kg·℃)，天然气的热值为3.2×107 J/m 3.求：(1)天然气完全燃烧放出的热量；(2)水吸收的热量；(3)该热水器工作的效率．解：(1)天然气完全燃烧放出的热量：Q 放＝Vq ＝1 m 3×3.2×107 J/m 3＝3.2×107 J(2)水吸收的热量：Q 吸＝cm(t －t 0)＝4.2×103 J/(kg·℃)×100 kg ×(50 ℃－20 ℃)＝1.26×107 J(3)燃气热水器的效率：η＝Q 吸Q 放×100%＝1.26×107 J 3.2×107 J×100%≈39.4%5．小亮家有一个容积为2 L 的水壶，水壶里装有初温为25 ℃的水，在1标准大气压下小亮用天然气炉具对水进行加热．[已知天然气的热值q ＝8.4×107 J/m 3，水的比热容c 水＝4.2×103 J/(kg·℃)]求：(1)烧开1 L 水，水需要吸收多少热量？(2)若天然气炉具的效率是30%，则烧开1 L 水需要完全燃烧多少天然气？解：(1)由题意可知水的体积V 水＝1 L ＝1×10－3 m 3由ρ＝m V可得，水的质量：m 水＝ρ水V 水＝1.0×103 kg/m 3×1×10－3 m 3＝1 kg 1标准大气压下水的沸点是100 ℃则水吸收的热量：Q 吸＝c 水m 水(t －t 0)＝4.2×103 J/(kg·℃)×1 kg ×(100 ℃－25 ℃)＝3.15×105 J(2)由η＝Q 吸Q 放得，天然气灶具燃烧放出的热量： Q 放＝Q 吸η＝3.15×105 J 30%＝1.05×106 J 由Q 放＝qV 得，需要燃烧天然气的体积：V 天然气＝Q 放q ＝1.05×106 J 8.4×107 J/m 3＝1.25×10－2 m 36．如图所示，甲图是质量为200 g 的固体的熔化实验装置，乙图是根据实验数据绘制出的曲线图.(1)根据图象和相关知识计算，该物质从第6 min 至第8 min 共吸收多少热量(该物质的液态比热容为3×103 J/(kg·℃)?(2)如果第6 min 开始到第8 min ，完全燃烧了热值为3.0×107 J/kg 的酒精1.25 g ．可估算出此过程中，热转化效率是多少？解：(1)由图象可知，该物质从第6 min 至第8 min ，温度从t 0＝50 ℃升高到t ＝90 ℃，则该物质吸收的热量：Q 吸＝cm(t －t 0)＝3×103 J/(kg·℃)×0.2 kg ×(90 ℃－50 ℃)＝2.4×104 J(2)1.25 g 酒精完全燃烧释放的热量：Q 放＝mq ＝0.00125 kg ×3.0×107 J/kg ＝3.75×104 J则此过程中热转化效率：η＝Q 吸Q 放×100%＝2.4×104 J 3.75×104 J×100%＝64%7．一定气压下，某种晶体熔化成同温度液体时所吸收的热量与其质量之比叫该晶体的熔化热，用字母λ表示．在标准大气压下，用一个热效率为40%的酒精炉作为热源，将50 g 初温为0 ℃的冰全部熔化为0 ℃的水，共燃烧了14 g 酒精，酒精的热值为3×107 J/kg.求：(1)冰熔化过程中吸收的热量；(2)在标准大气压下，冰的熔化热λ冰．解：(1)14 g 酒精完全燃烧放出的热量：Q 放＝qm 酒精＝3×107 J/kg ×0.014 kg ＝4.2×105 J由η＝Q 吸Q 放得，冰熔化成水吸收的热量： Q 吸＝Q 放η＝4.2×105 J ×40%＝1.68×105 J(2)标准大气压下冰的熔化热：λ冰＝Q 吸m 冰＝1.68×105 J 0.05 kg ＝3.36×106 J/kg8．如图所示是某太阳能热水器，水的容量为100 L ，该热水器在冬季有效日照时段里，平均每平方米的面积上每小时接收的太阳能约为2.8×106 J ．该热水器接收太阳能的有效面积为1.5 m 2，每天日照时间按8 h 计算，若这些太阳能能使装满水的热水器中的水温从20 ℃升高到60 ℃，水的比热容为4.2×103 J/(kg·℃)，水的密度为1.0×103 kg/m 3，求：(1)热水器中水的质量；(2)一天内热水器中的水吸收的热量；(3)热水器在冬季的效率． 解：(1)热水器中水的体积：V ＝100 L ＝100 dm 3＝0.1 m 3水的质量：m ＝ρV ＝1×103 kg/m 3×0.1 m 3＝100 kg(2)一天内热水器中的水吸收的热量：Q 吸＝cm Δt ＝4.2×103 J/(kg·℃)×100 kg ×(60 ℃－20 ℃)＝1.68×107 J(3)一天内热水器接收太阳能的能量：E ＝2.8×106 J/(m 2·h)×1.5 m 2×8 h ＝3.36×107 J热水器在冬季的效率：η＝Q 吸E ×100%＝1.68×107 J 3.36×107 J×100%＝50%。
人教版九年级英语第十四单元测试卷.docx
第十四单元检测卷时间：120分钟满分：120分班级：姓名：得分：听力部分（25分）I •听对话，选出与对话内容相符的图片。
听两遍。
（5分））1 .What does Maria want to be in the future?)2.What gifts will they give each other as graduation gifts?)3.What is the girl now?)4.What are the students doing now?)5.Who is Jane's favorite player?II •短对话理解。
听五段短对话，选择正确答案。
听两遍。
(5分)( )6.What are they going to do for the graduation ceremony?A ・ Make cards for their teachers.B ・ Decorate their classroom.C. Buy some gifts for their teachers and friends.( )7.What grade are the two speakers in?A.Grade Seven. B・ Grade Eight. C. Grade Nine・( )8.How will they keep their friendship after graduation?A・ By sending e—mails. B. By chatting on the Internet・C- By calling each other.()9.How long has Miss Zhang worked in this school?A.In 2004.B. Since 2003.C. Before 2005.( )10.What did the boy do yesterday evening?A・ He watched a football match. B • He watched a basketball match.C- He worked on his report・III.长对话理解。
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第14单元复习卷一. 根据句意及首字母或汉语提示完成1. Let’s (点着) a fire in the field tonight.2. My uncle is good at (农场) work, though he is very young.3. The chair is made of (木头). Don’t cut it with a knife.4. There are many flowers in my garden. Please (浇水) them every day.5. —What’s in the basket?— There are many beach (毛巾) in it.6. The dog barked when he heard the ________(脚步) in the garden.7. We visited parts of Fujian Province in s________ China.8. The moon a quite big and round tonight.二．英汉互译1.a beach vacation ______2.给植物浇水______________3.关灯___________________4.bathing suit ______________5.a travel guidebook _____________6.如此多__________7. in a minute ____________ 8.clean out __________9. 劈柴________ 10. 挑水_________________11. get back to sb. _____ 12.take﹍for a walk ______________13.生活做早饭_____________ 14.chat with sb. _______________15.on the farm _______ 16.举办音乐会_____________________ 17.write original songs _____________ 18.获奖______________________19.在过去的12个月里______________________20.make a music video_________ 21.有朝一日_________ 22.make a hit CD_________23.无家可归的孩子_________ 24. go on a world tour__________________ 25. 最后一个离开的人_________ 26.a musical instrument _________27.主唱_________ 28. young overseas Chinese _________ 29.前10名_________ 30. so far _________31.一定不要做_________ 32.in southern China_________33.还有一件事_________ 34. thanks to _________35.during the two-week camp _________ 36. 锁门_________37.family trees _________ 38.期待__________________39.所有的家务_________ 40. be helpful to __________________ 41.sing in front of people_______________42.写诗__________________43.学习中国文化__________________ 44.the purpose of__________________ 三．单项选择( )1. Although she won award in the singing competition, that has been only small step on the music scene for her.A. a; aB. an; aC. /; aD. an; / ( ) 2. — What’s the _____of your visit to the United Kingdom?— To see my aunt.A. orderB. markC. resultD. purpose( ) 3. I’m sure the owner of the shop must be _____, for the door has been locked now.A. upB. onC. offD. down( ) 4. — Hello, Mr. Green! Could you tell me something about your study?— OK, but I’m busy at the moment. I’ll get back _____ you _____ a minute.A. to; inB. with; inC. to; afterD. with; after( ) 5. _____ my parents’ support, I have made my business successful.A. Instead ofB. Thanks toC. As forD. Thanks for( ) 6. More and more _____ have returned to our homeland for their studies these years.A. overseas young ChineseB. young Chinese overseasC. young overseas ChineseD. Chinese young overseas( ) 7. — Oh, my God! My flowers are going to die.— You should have _____ them as often as you can.A. plantedB. fedC. wateredD. grown( ) 8. — what a clean garage!— Yes, my mother has just _____.A. turned out itB. cleaned out itC. turned it outD. cleaned it out( ) 9. I like collecting stamps. I’ve collected over 200 ones _____.A. so farB. at onceC. after allD. by then( ) 10. Each football team across the world looks forward to_____ the matches in the World Cup.A. winB. winningC. beatD. beating( ) 11. Over half of the children _____ in one-parent families.A. liveB. livesC. has livedD. had lived( )12. —_____ you _____Dalian?— Never. But I am going there this summer.A. Do; go toB. Have; been toC. Will; be toD. Have; gone to( ) 13. Now Peter works in the factory _____ his father used to work.A. whatB. whichC. thatD. where( )14. I _____ my homeland for a long time. I really miss her!A. leftB. went away fromC. have leftD. have been away from( )15. — Have you packed the camera for your trip?— _____. I’ll do it right away.A. No problemB. I’d like toC. Not yetD. Yes, I have（）16. ― What movie will be shown TV tonight?― Shaolin Temple.A. inB. atC. fromD. on（）17. When you travel to a city, you’d better buy a to get more information about it.A. newspaperB. suitcaseC. guidebookD. camera（）18. Maybe I have heard of this girl before, but I can ______ remember her name.A. hardlyB. reallyC. mostlyD. easily（）19. trees were cut off. And many birds lost their home.A. Thousand ofB. Thousands ofC. Two thousandsD. Two-thousand（）20. ― Are you full now?― No. I want apple pies.A. more oneB. one moreC. more twoD. two more( ) 21. This is a very big company. It has workers. Do you want to work here?A. five thousandB. five thousandsC. five thousands ofD. five thousand of( ) 22. My job is feeding the cat. Now it’s your turn the dog.A. feedingB. to feedC. to have fedD. being fed( ) 23. My friend, Darr en, is coming to visit us. I’m looking forward him.A. meetsB. meetingC. to meetD. to meeting( ) 24. —The radio is too noisy and there is nothing interesting on it. Why don’t you ?—All right. I’ll do that.A. turn it onB. turn it ofC. turn it backD. turn it up（）25. ― Have you ever to a zoo?― Yes, but only once. I visited Beijing Zoo last year.A. goneB. beenC. visitedD. seen四.用所给词的适当形式填空1. I_________ (water) the flowers already.2. The Greens _____ (go) to Beijing in 2000. They ________ (live) here for 12 years.3. ---- Where’s Mr. White?-----He ________ (go) to Japan. He ________ (be) to Japan twice.4. So far, we _____________ (learn) 24 English songs.5. Hainan is in the _____ (south) part of China.6. There many __________ (village) working on the farm .五.根据句意及汉语提示，填写适当的短语完成句子。