2014天津市河北区九年级中考三模英语试题及答案
中考英语试卷(真题)2014 天津卷(试卷+答案)
2014年天津市初中毕业生学业考试英语(含答案全解全析)(满分:120分时间:100分钟)第Ⅰ卷(共80分)一、听力理解(略)二、单项填空(本大题共20小题,每小题1分,共20分)从下列各题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
21.—Mary,who s woman over there?—She s my aunt, English teacher.A.the;theB.a;theC.the;anD.a;an22.If you work harder,you ll have another to play the violin at a concert.A.sleepB.chanceC.mistakeD.problem23.—Is there beef in the fridge?—No,there isn t.There is pork.A.some;anyB.any;anyC.some;someD.any;some24.Mo Yan is one of writers in the world.A.famousB.more famousC.most famousD.the most famous25.We don t want to speak badly or in front of the class.A.clearlyB.carefullyC.carelesslyD.properly26. month of the year is May.A.TwoB.The secondC.FiveD.The fifth27.Robots more heavy work for us in the future.A.will doB.didC.have doneD.were doing28.Look at our new school.It last year.A.builtB.was builtC.is builtD.will be built29.The book won t until the end of the year.e oute overe truee on30.He was wearing a pair of sunglasses and I didn t him at first.A.adviseB.promiseC.recogniseD.hear31.Look at the “No parking” sign.You park your car here.A.shouldB.mustC.needn tD.mustn t32.When you leave,please turn off the light energy.A.saveB.savingC.savedD.to save33.Cambridge is a small city the east of England.A.betweenB.withC.inD.under34.It was raining heavily, we decided to stay at home and watch TV.A.butB.orC.becauseD.so35.—The programme is very popular.—.We all like it.A.That s rightB.Not at allC.It doesn t matterD.You re welcome36.—you ever the new Minyuan Stadium?—No,I haven t.A.Do;visitB.Have;visitedC.Did;visitD.Are;visiting37.—Could you tell me yuanxiao in China?—Usually at Lantern Festival.A.when do people eatB.how do people eatC.when people eatD.how people eat38.Be friendly and you ll well with others.A.look atB.get onC.put onD.pick up39. he was very tired,he continued working in his office.A.SinceB.AlthoughC.As soon asD.Because40.—Can I have a look at your photos,please?—.A.Sure,here you areB.Don t mention itC.I can t agree with youD.I m sorry to hear that三、完形填空(本大题共10小题,每小题1分,共10分)阅读下面短文,掌握其大意,然后从各题所给的A、B、C、D四个选项中,选出最佳选项。
2014天津市中考英语真题及答案
2014天津市中考英语真题及答案一、听力二．单项填空（本大题共20小题.每小题1分.共20分）21. --- Mary, who’s______ woman over there?--- She’s my aunt, ______ English teacher.A. the; theB. a;theC.the; anD. a; an22. If you work harder, you’ll have another______ to play t he violin at a concert.A. sleepB. chanceC. mistakeD.problem23. --- Is there_____ beef in the fridge?--- No, there isn’t. There is ______ pork.A. some; anyB. any; anyC. some; someD. any; some24. Mo Yan is one of _____ writers in the world.A. famousB.more famousC. most famousD. the most famous25. We don’t want to speak badly or ______ in front of the class.A. clearlyB. carefullyC.carelesslyD. properly26. ______ month of the year is May.A. TwoB. The secondC.FiveD.The fifth27. Robots _____more heavy work for us in the future.A. will doB. didC. have doneD. were doing28. Look at our new school. It ____ last year.A. builtB. was builtC.is builtD. will be built29. The book won’t____ until the end of the year.A. come outB. come overC. come trueD. come on30. He was wearing a pair of sunglasses and I didn’t _____him at first.A. adviseB. promiseC. recogniseD. hear31. Look at the “No parking” sign. You _____park your car here.A. shouldB. mustC. needn’tD. mustn’t32. When you leave, please turn off the light_____ energy.A. saveB. savingC. savedD. to save33. Cambridge is a small city____ the east of England.A. betweenB. withC. inD. under34. It was raining heavily, _____ we decided to stay at home and watch TV.A. butB. orC. becauseD. so35.—The programme is very popular.--- _____. We all like it.A. That’s right.B.Not at all.C. It doesn’t matterD. You’re welcome36.--- ____ you ever_____ the new Minyuan Stadium? --- No, I haven’t.A. Do; visitB. Have; visitedC. Did; visitD. Are; visiting37.--- Could you tell me_____ yuanxiao in china?--- Usually at Lantern Festival.A. when do people eatB. how do people eatC. when people eatD. how people ear38. Be friendly and you’ll ____ well with others.A. look atB.get onC.put onD. pick up39._____ he was very tired, he continued working in his office.A. SinceB.AlthoughC. As soon asD. Because40. --- Can I havea look at your photos, please? ---______.A. Sure, here you areB.Don’t mention itC. I can’t agree with youD. I’m sorry to hear that三、完形填空（共10小题.每小题1分.共10分.）Many years ago, when I was a student, the radio studio manager at WXBN interviewed me and it changed my life.“How old are you?”he looked down at _______41.“Fifteen,” I said.“And you want a job in radio?” Shouldn’t you be _______42?”he asked.How could I explain? I’ve always _______43 the radio. When I was four or five years old, I remember sitting close to the radio in the living room, listening to my favourite programmes, and the voices of my favourite presenters. It seemed that they were speaking to me in person. _______44 the age of nine, I asked for jobs in small radio stations.As I grew older, my _______45 in radio grew. One day I learned about Internetradio. Once a week, I played my favoutite music from my father’s computer to the listeners, talked about life at school, and then closed down and did my homework. Soon my friends at junior high school started to listen, and then they wanted to _______46. We prepared the weekly programmes, articles about music, sports news, jokes and the weather report.“OK, _______47 with me,” the WXBN manager said, I followed him into the studio. Then I sat down in front of a microphone. He was in another room, behind the glass wall.“OK, let’s do a second check. Just tell me _______48 you had for breakfast.” All radio presenters begin work with the same _______49.“I had eggs, fruit and some milk.”“OK, that’s great,” the man behind the glass said.And this was how my first real _______50 in radio began.41.A.me B.her C.you D. him42.A.on the news B.on business C.at school D.at work43.A.repaired B.loved C.sold D.cleaned44.A.At B.In C.With D.For45.A.trouble B.habit C.collection D.interest46.A.fight B.refuse C.help ugh47.A.speak B.sing C.read e48.A.what B.how C.that D.why49.A.station B.advertisement C.question D.time50.A.game B.job C.joke D.report四、阅读理解（本大题共15小题：51~60小题.每小题2分；61~65小题.每小题1分；共25分）阅读下面的材料.从每小题所给的A、B、C、D四个选项中选出最佳选项。
天津市河北区高三英语总复习质量检测(河北三模)
河北区2013-2014学年度高三年级总复习质量检测（三）英语本试卷分为第I卷（选择题）和第II卷（非选择题）两部分，共130分，考试用时100分钟。
第I卷本卷共55小题，共95分。
第一部分：英语知识运用（共两节，满分45分）第一节：单项填空（共15小题；每小题1分，满分15分）从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1. -We need three single rooms for the first week in June.-_______.The hotel's not busy then.A. No problemB. Don't botherC. Never mindD. It doesn't matter2. Always remember to put such dangerous things as knives out of children's_______.A. touchB. sightC. reachD. distance3. Nowadays ,there is a _______increase in children's creativity ,for they are greatlyencouraged to develop their talents.A.sharpB. slightC. naturalD. modest4. -Do you have Mary's phone number?-Sorry,_______.A. I don't knowB. forget itC. here you areD. I can't remember it5. The prize will go to the writer _______story shows the most imagination.A. thatB. whichC. whoseD. what6. It was a nice meal, _______ a little expensive.A. thoughB.whetherC. asD. since7. If you _______faults but you still want the bicycle, ask the shop assistant to reduce the price.A. come acrossB. care aboutC. look forD. focus upon8. -That must have been a long trip.-Yeah,it_______ us a whole week to get there.A. takesB. has takenC. tookD. was taking9 . It________be the postman at the door. It's only six o'clock.A. mustn' tB. can'tC. won't D needn't10. More TV programs ,according to government officials ,will be produced________ people's concern over food safety.A. to raiseB. raisingC. to have raisedD. having raised11. -Someone wants you on the phone.- ________nobody knows I am here.A. AlthoughB. AndC. ButD. So .12. This shop will be closed for repairs . ________ further notice.A with B. until C. for D. at13. Mary, l ________John of his pomise to help you.A. toldB. remindedC. warnedD. advised14. -Pity you missed the lecture on nuclear pollution.-I_ _______it, but I was busy preparing for a job interview.A. attendedB. have attendedC. would attendD. would have attended15. His writing is so confusing that it's difficult to make out ________it is he is tryingto express.A. thatB. howC. whoD. what四四个选项中,选出最佳选项。
天津初三英语试题及答案
天津初三英语试题及答案一、听力理解（共10分）1. 根据所听对话，选择正确答案。
A. 3:00 pmB. 4:00 pmC. 5:00 pmD. 6:00 pm[听力材料：W: What time does the movie start? M: It starts at 4 o'clock in the afternoon.]答案：B2. 根据所听短文，选择正确答案。
A. The weather is fine.B. The weather is cloudy.C. The weather is rainy.D. The weather is snowy.[听力材料：Today is a sunny day. The weather is very nice.] 答案：A[听力部分省略其他题目，以保证试题的完整性和合理性。
]二、单项选择（共15分）1. -What are you doing this weekend?-I am ________ my homework.A. doB. doesC. doingD. did答案：C2. The teacher asked the students ________ late again.A. not beB. to not beC. not to beD. don’t be答案：C[单项选择部分省略其他题目，以保证试题的完整性和合理性。
]三、完形填空（共20分）阅读下面的短文，从A、B、C、D四个选项中，选择一个最佳选项填空。
In a small village, there lived an old man. He was very kind and always ready to help others. One day, he found a little bird with a broken wing. He took it home and _______ it.A. looked forB. looked afterC. looked upD. looked through答案：B[完形填空部分省略其他题目，以保证试题的完整性和合理性。
河北区九年级英语试卷
河北区九年级英语试卷专业课原理概述部分一、选择题1. 下列哪个单词的发音与其他单词不同？（）A. catB. dogC. fishD. bird2. 选择正确的介词填空：（）I will meet you _______ the library.A. onB. inC. atD.3.下列哪个句子是正确的？（）A. He go to school bus.B. She like reading books.C. They are playing soccer.D. I am watching TV now.4. 选择正确的时态填空：（）Yesterday, I _______ to the park with my friends.A. goB. wentC. goneD. going5. 选择正确的连词填空：（）_______ you study hard, you will pass the exam.A. BecauseB. ButC. SoD. Although二、判断题1. English is the most spoken language in the world. ( )2. "I am" and "I'm" have the same meaning. ( )3. "There", "their", and "they're" are interchangeable. ( )4. A noun is a word that represents a person, place, thing, or idea. ( )5. An adjective is a word that describes a noun. ( )三、填空题1. My favorite color is _______.2. I _______ to the movies last night.3. She _______ a book every day.4. _______ you like to travel?5. They _______ to the park tomorrow.四、简答题1. What is the past tense of "go"?2. What is the opposite of "big"?3. How do you spell "purple"?4. What is the plural form of "child"?5. What is the capital of France?五、应用题1. Write a sentence using the word "happy".2. Translate "I eat breakfast at 7 am" into Spanish.3. Give an example of a pound word.4. Write a question using the word "where".5. Make a sentence using the phrase "as soon as".六、分析题1. Compare and contrast the simple past and present perfect tenses.2. Expln the difference between "affect" and "effect".七、实践操作题1. Write a short paragraph about your favorite holiday.2. Create a dialogue between two people discussing their favorite movies.八、专业设计题1. 设计一个英语学习角，要求包括至少三种不同的学习资源和活动。
同底数幂的乘法试题精选(一)附答案
同底数幂的乘法试题精选（一）一．选择题（共30小题）1．（2014•河北区三模）下列各式中，正确的是（)A．a4•a2=a8B．a4•a2=a6C．a4•a2=a16D．a4•a2=a22．（2013•玄武区一模)下列计算中正确的是（）A．a2+a3=2a5B．a2•a3=a5C．a2•a3=a6D．a2+a3=a5 3．(2012•南通)计算（﹣x2）•x3的结果是（)A．x3B．﹣x5C．x6D．﹣x6 4．(2011•泉州)a2•a3等于()A．3a2B．a5C．a6D．a85．(2012•赣州模拟）化简（﹣a）•(﹣a)2的结果是（)A．a2B．﹣a2C．﹣a3D．a36．（2010•邵阳）（﹣a）2•a3=（）A．﹣a5B．a5C．﹣a6D．a67．（2008•西宁）计算：﹣m2•m3的结果是(）A．﹣m6B．m5C．m6D．﹣m58．（2006•佛山）计算(﹣x)3•x2的结果是(）A．x5B．x6C．﹣x5D．﹣x69．已知a m=3，a n=2，那么a m+n+2的值为（）A． 8 B．7 C．6a2D．6+a210．在等式x2•x5•(）=x11中，括号里的代数式应为（）A．x2B．x3C．x4D．x511．已知a m=3，a n=5，则a m+n等于（)A．15 B．8 C．0。
6 D．12512．已知x+y﹣3=0,则2y•2x的值是（）A． 6 B．﹣6 C．D．813．计算a5•(﹣a）3﹣a8的结果等于（)A． 0 B．﹣2a8C．﹣a16D．﹣2a1614．计算：a5•a2的结果正确的是（)A．a7B．a10C．a25D．2a715．已知：24×8n=213，那么n的值是（)A． 2 B．3 C．5 D． 816．计算（x﹣y）3•（y﹣x）=（）A．(x﹣y）4B．（y﹣x）4C．﹣（x﹣y）4D．（x+y）417．计算a2•a3+2a5的结果为（）A．a5B．3a5C．a10D．3a1018．下列计算中，正确的个数有(）①102×103=106；②5×54=54 ；③a2•a2=2a2；④c•c4=c5；⑤b+b3=b4 ；⑥b5+b5=2b5；（7）33+23=53;(8）x5•x5=x25．A． 1 B．2 C．3 D． 419．若a3•a4•a n=a9，则n=（）A．1 B． 2 C． 3 D．420．下列各项中的两个幂,其中是同底数幂的是（）A．﹣a与（﹣a）B．a与（﹣a) C．﹣a与a D．（a﹣b)与（b﹣a）21．（a﹣b）3(b﹣a）4的计算结果是（）A．﹣（a﹣b）12B．﹣(a﹣b）7C．(b﹣a)7D．（a﹣b)722．（﹣a）3（﹣a）2（﹣a5）=（）A．a10B．﹣a10C．a30D．﹣a3023．若x，y为正整数，且2x•2y=25，则x，y的值有（）A．4对B．3对C．2对D．1对24．a7=（)A．（﹣a）2（﹣a）5B．（﹣a）2（﹣a5）C．（﹣a2）（﹣a)5D． (﹣a）（﹣a）625．（4•2n）(4•2n）等于（）A．4•2n B．8•2n C．4•4n D．22n+426．（m+n﹣p）(p﹣m﹣n）（m﹣p﹣n)4（p+n﹣m）2等于（）A．﹣（m+n﹣p)2（p+n﹣m)6B．(m+n﹣p）2(m﹣n﹣p）6C．（﹣m+n+p）8D．﹣（m+n+p）827．a•a3x可以写成(）A．（a3）x+1B．（a x)3+1C．a3x+1D．(a x）2x+128．m为偶数，则（a﹣b）m•（b﹣a）n与（b﹣a)m+n的结果是(）A．相等B．互为相反数C．不相等D．以上说法都不对29．下列各式中，不能用同底数幂的乘法法则化简的是（）A．（x﹣y）（x﹣y）2B．（x+y）（x﹣y）2C．（x﹣y）(y﹣x）2D． (x﹣y）（y﹣x)2（x﹣y)230．若x＞1，y＞0，且满足，则x+y的值为(）A．1 B．2 C．D．同底数幂的乘法试题精选（一）参考答案与试题解析一．选择题（共30小题）1．（2014•河北区三模)下列各式中，正确的是（）A．a4•a2=a8B．a4•a2=a6C．a4•a2=a16D．a4•a2=a2考点：同底数幂的乘法．分析：根据同底数幂的乘法,底数不变指数相加，可得答案．解答:解:a4•a2=a4+2=a6，故选：B．点评：本题考查了同底数幂的乘法,同底数幂的乘法，底数不变指数相加．2．（2013•玄武区一模）下列计算中正确的是（）A．a2+a3=2a5B．a2•a3=a5C．a2•a3=a6D．a2+a3=a5考点：同底数幂的乘法；合并同类项．分析:根据同底数幂相乘，底数不变指数相加的性质,合并同类项的法则对各选项分析判断后利用排除法求解．解答：解：A、a2与a3不是同类项，不能合并,故本选项错误；B、a2•a3=a5，正确;C、应为a2•a3=a5，故本选项错误；D、a2与a3不是同类项，不能合并，故本选项错误．故选B．点评：本题主要考查同底数幂的乘法的性质；合并同类项的法则，不是同类项的不能合并．3．（2012•南通）计算（﹣x2）•x3的结果是（）A．x3B．﹣x5C．x6D．﹣x6考点: 同底数幂的乘法．分析:根据同底数幂相乘，底数不变，指数相加，计算后直接选取答案．解答：解：（﹣x2）•x3=﹣x2+3=﹣x5．故选B．点评：本题主要考查同底数幂的乘法运算法则：底数不变,指数相加．熟练掌握运算法则是解题的关键．4．（2011•泉州）a2•a3等于（）A．3a2B．a5C．a6D．a8考点: 同底数幂的乘法．专题：探究型．分析：根据同底数幂的乘法法则进行计算即可．解答:解：原式=a2•a3=a2+3=a5．故选B．点评：本题考查的是同底数幂的乘法，即同底数的幂相乘，底数不变,指数相加．5．（2012•赣州模拟）化简（﹣a)•(﹣a)2的结果是（）A．a2B．﹣a2C．﹣a3D．a3考点：同底数幂的乘法．分析：根据同底数幂的乘法法则，同底数幂相乘，底数不变，指数相加,即a m•a n=a m+n，计算后直接选取答案．解答：解：（﹣a）•（﹣a）2=(﹣a）2+1=﹣a3．故选C．点评：本题主要考查同底数幂的乘法的性质，要注意底数是﹣a，而不是a,运算时一定要注意．6．(2010•邵阳）（﹣a）2•a3=（）A．﹣a5B．a5C．﹣a6D．a6考点：同底数幂的乘法．分析：根据同底数幂相乘，底数不变，指数相加解答，即a m•a n=a m+n．解答：解:（﹣a)2•a3=a2•a3=a2+3=a5．故选B．点评:本题主要考查同底数幂的乘法的性质，本题需要注意（﹣a)2=a2．7．(2008•西宁）计算：﹣m2•m3的结果是（）A．﹣m6B．m5C．m6D．﹣m5考点：同底数幂的乘法．分析:根据同底数幂相乘，底数不变，指数相加，计算后直接选取答案．解答:解:﹣m2•m3=﹣m2+3=﹣m5．故选D．点评：熟练掌握同底数幂乘法的运算性质是解题的关键．8．（2006•佛山）计算(﹣x)3•x2的结果是（）A．x5B．x6C．﹣x5D．﹣x6考点: 同底数幂的乘法．分析：根据同底数幂乘法的运算性质,运算后直接选取答案．解答：解：(﹣x）3•x2=﹣x3•x2=﹣x5．故选C．点评：本题主要考查同底数幂的乘法，底数不变，指数相加的性质，熟练掌握性质是解题的关键．9．已知a m=3,a n=2，那么a m+n+2的值为（）A．8B．7C．6a2D．6+a2考点：同底数幂的乘法．分析:根据同底数幂相乘，底数不变指数相加的性质的逆用解答即可．解答：解：a m+n+2=a m•a n•a2=3×2×a2=6a2．故选C．点评:本题主要考查同底数幂的乘法，熟练掌握性质并灵活运用是解题的关键．10．在等式x2•x5•（）=x11中,括号里的代数式应为（)A．x2B．x3C．x4D．x5考点：同底数幂的乘法．分析:根据同底数幂的乘法，底数不变指数相加，可得答案．解答：解：设括号里的是x n,x2+5+n=x11,n=4，x n=x4，故选:C．点评:本题考察了同底数幂的乘法，底数不变指数相加．11．已知a m=3，a n=5，则a m+n等于（)A．15 B．8C．0.6 D．125考点：同底数幂的乘法．分析：根据同底数幂的乘法，底数不变指数相加，可得答案．解答:解：a m+n=a m•a n=3×5=15,故选:A．点评：本题考查了同底数幂的乘法，底数不变指数相加,是解题关键．12．已知x+y﹣3=0，则2y•2x的值是（）A．6B．﹣6 C．D．8考点：同底数幂的乘法．分析：根据同底数幂的乘法求解即可．解答：解:∵x+y﹣3=0，∴x+y=3，∴2y•2x=2x+y=23=8，故选：D．点评:此题考查了同底数幂的乘法等知识，解题的关键是把2y•2x化为2x+y．13．计算a5•（﹣a）3﹣a8的结果等于(）A．0B．﹣2a8C．﹣a16D．﹣2a16考点: 同底数幂的乘法；合并同类项．分析：先根据同底数幂相乘，底数不变指数相加计算,再合并同类项．解答：解：a5•（﹣a)3﹣a8=﹣a8﹣a8=﹣2a8．故选B．点评：同底数幂的乘法的性质：底数不变，指数相加．合并同类项的法则：只把系数相加减，字母与字母的次数不变．14．计算：a5•a2的结果正确的是（)A．a7B．a10C．a25D．2a7考点：同底数幂的乘法．分析：根据同底数幂相乘，底数不变，指数相加,即a m•a n=a m+n解答即可．解答：解：a5•a2=a5+2=a7．故选A．点评：本题主要考查同底数幂的乘法的性质，熟练掌握性质是解题的关键．15．已知：24×8n=213,那么n的值是（）A．2B．3C．5D．8考点：同底数幂的乘法．分析：将等式左边化为以2为底的幂的形式,再根据指数相等列方程求解．解答：解：由24×8n=213，得24×23n=213，∴4+3n=13，解得n=3．故选B．点评：本题考查了同底数幂的乘法的性质，熟练掌握性质是解题的关键．16．计算(x﹣y)3•(y﹣x）=(）A．（x﹣y）4B．（y﹣x)4C．﹣（x﹣y）4D．（x+y）4考点：同底数幂的乘法．专题: 整体思想．分析：根据同底数幂的乘法法则,同底数幂相乘，底数不变，指数相加计算．解答：解：(x﹣y)3•（y﹣x)=﹣(x﹣y）3•（x﹣y)=﹣（x﹣y）3+1=﹣（x﹣y)4;故选C．点评：本题主要考查同底数幂的乘法的性质．解题时，要先转化为同底数的幂后,再相乘．17．计算a2•a3+2a5的结果为（）A．a5B．3a5C．a10D．3a10考点：同底数幂的乘法;合并同类项．分析:根据同底数幂的乘法，可得a2•a3，根据整式加法，可得a2•a3+2a5的结果．解答：解：a2•a3+2a5=a5+2a5=3a5,故选：B．点评：本题考查了同底数幂的乘法，先计算同底数幂的乘法,再合并同类项．18．下列计算中，正确的个数有(）①102×103=106；②5×54=54 ;③a2•a2=2a2；④c•c4=c5；⑤b+b3=b4 ；⑥b5+b5=2b5；（7）33+23=53;(8）x5•x5=x25．A．1B．2C．3D．4考点：同底数幂的乘法;合并同类项．专题：计算题．分析：根据同底数的幂的法则和合并同类项法则进行计算即可．解答：解：①102×103=105，∴①错误；②②5×54=55∴②错误；③a2•a2=a4∴③错误;④c•c4=c5∴④正确;⑤b+b3不能合并同类项∴⑤错误；⑥b5+b5=2b5，∴⑥正确;（7）33+23，不能合并同类项，∴（7）错误；（8）x5•x5=x10，∴(8）错误．正确的有2个．故选B．点评：本题主要考查对同底数的幂的法则和合并同类项法则等知识点的理解和掌握，能熟练地运用性质进行计算是解此题的关键．19．若a3•a4•a n=a9，则n=（）A．1B．2C．3D．4考点：同底数幂的乘法．分析：根据同底数幂相乘，底数不变，指数相加计算，然后再根据指数相等列出方程求解即可．解答：解:∵a3•a4•a n=a3+4+n,∴3+4+n=9解得n=2．故选B．点评：本题考查同底数幂乘法法则：底数不变，指数相加的性质，熟练掌握性质是解题的关键．20．下列各项中的两个幂,其中是同底数幂的是（)A．﹣a与(﹣a）B．a与（﹣a) C．﹣a与a D．(a﹣b）与（b﹣a）考点：同底数幂的乘法；有理数的乘方．分析:根据带有负号的数的乘方的书写规范，对各选项分析判断后利用排除法求解．解答：解：A、﹣a的底数是a,(﹣a）的底数是﹣a，故不是同底数幂；B、a的底数是a，（﹣a）的底数是﹣a，故不是同底数幂；C、﹣a的底数是a，a的底数是a，故是同底数幂D、（a﹣b）与（b﹣a)底数互为相反数，故不是同底数幂．故选C．点评:本题主要考查带有负号的数的乘方的书写规范，良好的书写习惯对学好数学大有帮助．21．（a﹣b）3(b﹣a）4的计算结果是（)A．﹣（a﹣b)12B．﹣（a﹣b）7C．（b﹣a）7D．（a﹣b）7考点：同底数幂的乘法．专题：计算题．分析:把原式的第二个因式中的b﹣a，提取﹣1变形,然后根据﹣1的偶次幂为1化简，最后根据同底数幂的乘法运算法则:底数不变,指数相加即可得到运算结果．解答:解:（a﹣b）3（b﹣a)4=（a﹣b）3（[﹣（a﹣b）］）4=(a﹣b)3(a﹣b）4=(a﹣b)3+4=（a﹣b）7．故选D．点评：此题考查了同底数幂的乘法运算,把两因式的底数化为相同的底数再利用法则计算是解本题的关键，同时要求学生掌握同底数幂的乘法法则，理清指数的变化．22．（﹣a)3（﹣a）2(﹣a5）=（）A．a10B．﹣a10C．a30D．﹣a30考点: 同底数幂的乘法．分析:根据同底数幂相乘，底数不变，指数相加求解即可．解答：解:（﹣a)3(﹣a）2（﹣a5)=（﹣a3）•a2(﹣a5）=a3+2+5=a10．故选A．点评：本题主要利用同底数幂的乘法的性质求解，符号的运算是容易出错的地方．23．若x,y为正整数，且2x•2y=25,则x,y的值有（)A．4对B．3对C．2对D．1对考点：同底数幂的乘法．分析:根据同底数幂相乘，底数不变，指数相加，再根据指数相等即可求解．解答：解：∵2x•2y=2x+y，∴x+y=5，∵x，y为正整数,∴x,y的值有x=1，y=4;x=2，y=3；x=3,y=2;x=4，y=1．共4对．故选A．点评:灵活运用同底数幂的乘法法则是解决本题的关键．24．a7=（)A．（﹣a）2（﹣a)5B．（﹣a）2（﹣a5）C．(﹣a2）（﹣a）5D．（﹣a）（﹣a）6考点: 同底数幂的乘法．分析:根据同底数幂的乘法,底数不变，指数相加，计算后利用排除法求解．解答：解:A、（﹣a）2(﹣a）5=a2(﹣a5）=﹣a7，错误；B、（﹣a)2（﹣a5)=﹣a7,错误；C、（﹣a2）(﹣a)5=a7，正确；D、(﹣a) （﹣a）6=﹣a•a6=﹣a7,错误．故选C．点评：负数的偶次幂是正数，负数的奇次幂是负数,结合同底数幂的乘法，底数不变,指数相加可解决此类问题．25．（4•2n）（4•2n）等于（）A．4•2n B．8•2n C．4•4n D．22n+4考点: 同底数幂的乘法．分析：根据同底数幂相乘，底数不变指数相加，计算后直接选取答案．解答：解：（4•2n）（4•2n）=22+n•22+n=22n+4．故选D．点评：本题主要考查同底数幂的乘法的性质，熟练掌握性质并灵活运用是解题的关键．26．（m+n﹣p）(p﹣m﹣n）(m﹣p﹣n)4（p+n﹣m)2等于（）A．﹣（m+n﹣p)2（p+n﹣m）6B．（m+n﹣p)2（m﹣n﹣p）6C．（﹣m+n+p)8D．﹣（m+n+p）8考点：同底数幂的乘法．分析：根据实数偶次幂的性质和相反数的定义，再利用同底数相乘，底数不变指数相加计算．解答：解：由于p﹣m﹣n和(m+n﹣p）互为相反数，∴p﹣m﹣n=﹣（m+n﹣p）；p+n﹣m和m﹣p﹣n互为相反数，（p+n﹣m)2=（m﹣p﹣n）2,∴原式=﹣（m+n﹣p)（m+n﹣p）（p+n﹣m)4（p+n﹣m）2=﹣（m+n﹣p）2(p+n﹣m）6．故选A．点评：本题考查了同底数幂的乘法，要熟悉相反数的定义和实数偶次幂的性质．27．a•a3x可以写成（）A．（a3）x+1B．（a x)3+1C．a3x+1D．（a x）2x+1考点: 同底数幂的乘法．分析：根据同底数幂的乘法法则，同底数幂相乘,底数不变，指数相加，即a m•a n=a m+n解答．解答：解：a•a3x=a1+3x．故选C．点评:本题主要利用同底数幂的乘法的性质求解,是基础题．28．m为偶数，则（a﹣b）m•(b﹣a）n与（b﹣a）m+n的结果是（)A．相等B．互为相反数C．不相等D．以上说法都不对考点：同底数幂的乘法．分析：根据同底数幂的乘法法则，同底数幂相乘，底数不变，指数相加，求解即可．解答:解：因为m为偶数，（a﹣b）m=（b﹣a）m，所以（a﹣b）m•（b﹣a）n=（b﹣a）m•（b﹣a)n=（b﹣a）m+n．故选A．点评：熟练掌握互为相反数的两数的偶数次方相等是解本题的关键．29．下列各式中，不能用同底数幂的乘法法则化简的是（)A．（x﹣y)（x﹣y)2B．（x+y）（x﹣y）2C．（x﹣y）(y﹣x）2D．（x﹣y)（y﹣x）2（x﹣y）2考点：同底数幂的乘法．分析:根据能用同底数幂的乘法法则，底数一定相同,或互为相反数，对各选项分析判断后利用排除法求解．解答:解：底数不相同的是（x+y)（x﹣y）2．故选B．点评：本题特别要注意的是：互为相反数的两个式子可以通过符号的变化化成同一式子，以及整体思想的运用．30．若x＞1,y＞0,且满足，则x+y的值为（)A．1B．2C．D．考点：同底数幂的乘法．专题：计算题．分析:首先将xy=x y变形,得y=x y﹣1，然后将其代入，利用幂的性质,即可求得y的值,则可得x的值，代入x+y求得答案．解答：解：由题设可知y=x y﹣1，∴x=yx3y=x4y﹣1，∴4y﹣1=1．故，从而x=4．于是．故选C．点评：此题考查了同底数幂的性质:如果两个幂相等，则当底数相同时，指数也相同．。
2024年天津市河北区中考一模英语试卷含答案
河北区2023~2024学年度九年级总复习质量检测(一)英语第Ⅰ卷注意事项：1.每题选出答案后，用2B铅笔把“答题卡”上对应题目的答案标号的信息点涂黑。
如需改动，用橡皮擦干净后，再选涂其他答案标号的信息点。
2.本卷共五大题,共80分.一、听力理解(本大题共20小题，每小题1分，共20分)A)在下列每小题内，你将听到一个或两个句子并看到供选择的A、B、C三幅图画.找出与你所听句子内容相匹配的图画。
B)下面你将听到十组对话，每组对话都有一个问题.根据对话内容，从每组所给的A、B、C三个选项中找出能回答所提问题的最佳选项。
5.What does Maria do in her free time?A.She sees friends.B.She reads books.C.She writes novels.6.Where is the pet shop?A.Near the library.B.Next to the bank.C.Opposite the post office.7.What is the woman doing?A.Cooking.B.Watching films. D.having dinner.8.What does the man think of surfing?A.It's dangerous.B.It's difficult.C.It's exciting.9.What is the weather like now?A.Cloudy.B.Rainy.C.Sunny.10.How will Lisa go to school tomorrow?A.By car.B.By bus.C.On foot.11.What does the boy enjoy doing best in the club?A.Singing.B.Dancing.C.Painting.12.Why is the boy going to Jake's house?A.To study for a test.B.To do his homework.C.To make a model plane.13.Which pair of shorts will the man try on?A.The blue one.B.The brown one.C.The black one.14.When will the bus arrive?A.,At8:30.B.At9:00.C.At9:30.C)听下面长对话或独白.每段长对话或独白后都有几个问题，从题中所给的A、B、C三个选项中选出最佳选项.在天津考生拿最新试卷听下面一段材料，回答第15至第17题。
九年级天津期中英语试卷【含答案】
九年级天津期中英语试卷【含答案】专业课原理概述部分一、选择题（每题1分，共5分）1. Which of the following is NOT a part of speech in English?A. NounB. AdjectiveC. VerbD. PronounE. Preposition2. Choose the correct form of the verb in parentheses.I ______ (to see) a movie last night.A. seeB. sawC. seenD. seesE. seeing3. What is the past perfect tense of the verb "go"?A. WentB. GoneC. WentD. GoedE. Went4. Which of the following sentences is in the passive voice?A. The cat chased the mouse.B. The mouse was chased the cat.C. The cat is chasing the mouse.D. The mouse chased the cat.E. The cat chased the mouse.5. What is the correct form of the possessive pronoun for "I"?A. MyB. MineC. MeD. MinesE. Myself二、判断题（每题1分，共5分）1. True or False: "They" is a singular pronoun. (False)2. True or False: "Run" is the past tense of "ran". (False)3. True or False: An adjective describes a noun. (True)4. True or False: "Whom" can be used as a subject. (False)5. True or False: "There" and "their" are homophones. (True)三、填空题（每题1分，共5分）1. I _______ (to be) a teacher when I grow up.2. She _______ (to go) to the store yesterday.3. _______ (They) are playing soccer.4. I don't know whether _______ (he) will e or not.5. The cat is _______ (quick).四、简答题（每题2分，共10分）1. What is a conjunction and give an example.2. What is the difference between "affect" and "effect"?3. What is the present perfect tense and give an example.4. What is a reflexive pronoun and give an example.5. What is the difference between "its" and "it's"?五、应用题（每题2分，共10分）1. Correct the following sentence: "She don't like apples."2. Write a sentence using the future perfect tense.3. Identify the subject and the verb in the following sentence: "The dog barked."4. Make the following sentence negative: "They are playing soccer."5. Choose the correct homophone: "Their going to the store."六、分析题（每题5分，共10分）1. Analyze the following sentence: "The quick brown fox jumps over the lazy dog." Identify the parts of speech and the tense.2. Expln the difference between "lie" and "lay" and give an example of each.七、实践操作题（每题5分，共10分）1. Write a short paragraph using at least 5 adjectives and 3 adverbs.2. Create a dialogue between two people using at least 5 different question words (who, what, where, when, why, how).八、专业设计题（每题2分，共10分）1. Design a classroom activity to teach the past perfect tense.2. Create a worksheet for practicing subject-verb agreement.3. Plan a role-play activity to practice making requests in English.4. Develop a reading prehension exercise based on a short story.5. Design a vocabulary game to reinforce new words related to nature.九、概念解释题（每题2分，共10分）1. Expln the concept of collocations in English.2. Define the term "phrasal verb" and give an example.3. Describe the difference between "listen" and "hear".4. Expln the use of articles in English (a, an, the).5. Define the term "idiom" and provide an example.十、思考题（每题2分，共10分）1. How can technology be used to enhance English language learning?2. Discuss the importance of reading in language acquisition.3. What are the challenges of teaching English as a second language?4. How can cultural differences impact language learning?5. What strategies can be used to improve listening skills in English?十一、社会扩展题（每题3分，共15分）1. Write a short essay on the importance of English in global munication.2. Discuss the role of English in the tourism industry.3. How has the internet influenced the way English is learned and used?4. Explore the impact of English on local languages and cultures.5. What are the benefits and challenges of bilingual education?本专业课原理概述部分试卷答案及知识点总结如下：一、选择题答案1. E2. B3. B4. B5. B二、判断题答案1. False2. False3. True4. False5. True三、填空题答案1. want to be2. went3. They4. he5. quick四、简答题知识点总结及示例1. Conjunctions are words that join clauses or sentences. Example: "and", "but", "or".2. "Affect" is a verb meaning to influence, while "effect" is a noun meaning a result or oute. Example: The weather affected our plans. (verb) The effect of the medicine was immediate. (noun)3. The present perfect tense is used to describe an action that happened at an unspecified time before now. Example: "I have lived in New York for three years."4. Reflexive pronouns are used when the subject of a sentence is also the object. Example: "I cooked myself dinner."5. "Its" is the possessive form of "it", while "it's" is a contraction of "it is" or "it has". Example: The cat licked its paw. It's rning outside.五、应用题知识点总结及示例1. Corrected sentence: "She doesn't like apples."2. Future perfect tense sentence: "By next year, I will have graduated from college."3. Subject: "The dog", Verb: "barked".4. Negative sentence: "They are not playing soccer."5. Correct homophone: "They're going to the store."六、分析题知识点总结及示例1. Sentence analysis: "The quick brown fox jumps over the lazy dog." Parts of speech: "The" (article), "quick" (adjective), "brown" (adjective), "fox" (noun), "jumps" (verb, present tense), "over" (preposition), "the" (article), "lazy" (adjective), "dog" (noun).2. Difference between "lie" and "lay": "Lie" means to recline or be situated, "lay" means to put or place. Example of "lie": "I lie down every evening." Example of "lay": "I ld the book on the table."七、实践操作题知识点总结及示例1. Paragraph with adjectives and adverbs: "The sun was shining brightly in the sky. The r was fresh and crisp. The birds were singing melodiously. The flowers were blooming beautifully. The children were playing joyfully in the park."2. Dialogue with question words: "Who is ing to the party tonight? What time does it start? Where is it being held? When can I arrive? Why was I not invited earlier? How do I get there?"以上试卷答案及知识点总结涵盖了英语语法、词汇、句型结构、时态、语态、阅读理解、写作等多个方面，旨在全面考察学生对英语基础知识的掌握程度。