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八年级上册英语语法专练(Unit1-4)1.形容词、副词的比较级、最高级的用法as+adj/adv(原级)+asadj/adv(比较级)+thanthe+adj/adv(最高级)adj/adv(比较级)+adj/adv(比较级)越来越…the+adj/adv(比较级)…,the+adj/adv(比较级)…越…,越…2.反身代词的用法我自己你自己他自己她自己它自己我们自己你们自己他们自己反身代词有三种不同的用法: 一、非强调用法 这种用法通常表示反身代词与句中的主语是同一人。例如: (1)Jane is too young to look after herself.(简年比太小,以至于不能照看自己) (2)I teach myself English.(我自学英语) (3)He didn"t hurt himself, thank goodness.(他未伤了他自己,谢天谢地。) 二、强调用法 反身代词在强调用法中表示强调,即用来加强某个名词或者代词的语气,可译成“亲自”、“本人”。例如: (1)You must do it yourself.(你必须自己做) (2)I myself did the homework last night。(昨晚是我自己做了家庭作业) 三、与by搭配 byoneself意为:单独地,独自地。 例如: (1)We must finish it all by ourselves.(我们必须全靠自己去完成。) (2)He can swim all by himself.(他能独自一个人游泳。3.祈使句的用法祈使句指的是表示命令、请求、建议或劝告的句子。其主语you常省略,谓语动词用原形,句末用感叹号或句号。1. 肯定的祈使句 (1)动词原形+其他
(2)Be + adj. (3)Let"s + 动词原形 2. 否定的祈使句(1)Don"t + 动词原形 (2)Let"s ( let sb ) + not + 动词原形 3.祈使句的反意疑问句 (1) 肯定祈使句的反意疑问句反问部分用will you 或won"t you。 (2) 否定祈使句的反意疑问句反问部分只用will you。(3) 以let"s开头的祈使句反意疑问句反问部分用shall we。 Let"s turn on the TV, shall we? 我们把电视打开,好吗? <特别注意> let us 开头的祈使句的反意疑问句的反问部分应为will you或won"t you.如:Let us stay here, will/ won"t you? 请(你)让我们留在这好吗?4.should/hadbetter(not)dosth的用法should应该…hadbetter最好…形容词、副词(原级、比较级和最高级)练习 一、 用适当形式填空: 1. Bob is _________ (young) than Fred but ___________ (tall) than Fred. 2. Ying Tian is not as ___________ (tall) as Yong Xian. 3.Which is _________ (heavy),a hen or a chicken? 4. He is ______ (good) at learning maths. He is much _______ (good) at Chinese and he is the _________ (good)at English. 5. He is one of the_________(friendly) people in the class, I think. 6. A dictionary is much _________ (expensive) than a story-book. 7.An orange is a little ______ (big) than an apple, but much ________ (small) than a watermelon.8. The Changjiang River is the _______ (long) river in China. 9. My room is not as _________ (big) as my brother" s. 10. --Annie plays the piano very ___________ (well). -- Sue plays it _____ (well) than Annie. And Sally plays it the __________ (well). 11. Saturday is my _________ (busy) day in a week. 12. Her mother is getting ____________(fat) and ________ (fat). 13. I think it’s too expensive. I’d like a _____________ (cheap) one.
14. He comes to school much ____________ (early) than I. 15.This book is not as _____________ (interesting) as that one. 16. Your classroom is __________(wide) and _________(bright) than ours. 17. Practise as __________ (much) as you can. 18. The ________ (much), the ____________ (good). 二、单项选择1. This box is________ that one. A. heavy than B. so heavy than C. heavier as D. as heavy as 2. When we speak to people, we should be __________. A. as polite as possible B. as polite as possibly C. as politely as possible D. as politely as possibly 3. This book is______ that one, but______ than that one. A. as difficult as; expensive B. as more difficult as; more expensive C. as difficult as; more expensive D. more difficult as; as expensive 4. I think the story is not so ______ as that one. A. interesting B. interested C. more interesting D. most interesting 5. I think science is _______ than Japanese. A. much important B. important C. much more important D. more much important 6. These children are ________ this year than they were last year. A. more tall B. more taller C. very taller D. much taller 7. Mrs. Black has got_______ instead of getting any better. A. more bad B. a little worse C. much badly D. a lot of worse 8. When we arrived, we found the meeting room crowded with_______ students. A. quite a few B. only a few C. few D. a few quite 9. The house is _______ small for a family of six. A. much too B. too much C. very much D. so 10. His father is________ than his mother. A. older four years B. as four years older C. four years older D. bigger four years 11. Maths is more popular than_________. A. any other subject B. all the subjects C. any subject D. other subject 12. China is larger than _________ in Africa. A. any other country B. other countries C. the other country D. any country 13. At last he began to cry __________.
A. hard and hard B. more hard and more hard C. harder and harder D. less hard and less harder 14. _______ I look at the picture, _________ I like it. A. The best; the more B. The more; the less C. The more; less D. More; the more 15. I like_______ one of the two books. A. the older B. oldest C. the oldest D. older 16. Which do you like _______, tea or coffee? A. well B. better C. best D. most 反身代词练习 1.--Who teaches __________English? --No one. I teach __________. A. you; myself B. your; myself C. you; me D.yourself;myself2.---Help ____ to some cakes, Jim. ---Thank you. A. you B. your C. yourself D. yourselves3.—How was your visit to the World Park in Beijing? —Wonderful! We enjoyed ____ very much. A. itself B. myself C. yourselves D. ourselves4.-How did your uncle learn to play the guitar? -By ____ . A. myself B. yourself C. herself D. himself 5. — I could look after ____ when I was five. — Really? I can’t believe it. A. myself B. herself C. himself D. yourself 祈使句练习 1. ________ me the truth, or I"ll be angry. A. Telling B. To tell C. Told D. Tell2. _______ late again, Bill! A. Don"t to be B. Don"t be C. Not be D. Be not 3. _______ cross the road until the traffic lights turn green. A. Not B. Won"t C. Doesn"t D. Don"t 4. Please help me carry it, ______? A. will I B. will you C. shall I D. shall we 5. Don"t make so much noise, ______? A. will you B. won"t you C. shall we D. do you6. Kate, _______ your homework here tomorrow.
A. bring B. brings C. to bring D. bringing 7. Sindy, ________ to be here at 8 o’clock.A.issureB.issurethatC.willbesureD.besure8.________ when you cross the road. A Do care B Care C Do be careful D To be careful9. ________ Your child. We’ll look after him. A Not to worry aboutB Don’t worry aboutC Not worry for D Don’t worry with10 --You look rather tired. ________ stopping to have a rest?-- All right. A Why not B How about C Why not toD why don’t11 John, read the text for us,________? A does he B will he C do you D will you 12. Let’s do it at once, ________ ? A shall we B will youC do weD do you13. Let us do it at once, ________ ? A shall weB will youC do we D do you情态动词练习 1. He said that you __________ watch TV all the evening if you wished. A. may B. must C. can D. might 2. -Is John coming by train? --He should, but he __________ not. He likes driving his car. A. must B. can C. need D. may3. Michael __________ be a policeman, for he"s much too short. A. needn"t B. can"t C. shouldn"t D. won"t4. Come on! We __________ hurry because there isn"t much time left. A. may B. must C. can D. need 5. It"s nearly seven o"clock. Jack __________ be here at any moment. A. must B. need C. should D. can6. --Let’s go to Taishan Park by taxi. –It’s not far. We ______ take a taxi. A. needn’t B. can’t C. mustn’t D. couldn’t7. You ______ play with fire, Tom. It’s very dangerous. A. needn’t B. may not C. mustn’t D. wouldn’t 8. --______ we swim in that river? –No, you ______. It’s dangerous to swim there. A. Must, can’t B. Can, may not C. Shall, don’t D. May, mustn’t
9. --______ I fill in the check-in form right now, sir?--No, you needn’t. You can complete it this afternoon.A. May B. Can C. Would D. Must 10. –Must I finish reading the book today? --No. You ______ if you have something else to do. A. mustn’t B. couldn’t C. can’t D. don’t have to11. –Would you like to go swimming with me this afternoon? --I’d love to. But I’m afraid I ______. I have too much work to do. A. can’t B. mustn’t C. needn’t D. may not 12. --______ you like to go shopping with me? –Yes, I ______. A. Would, would B. Will, will like C. Would, would love D. Would, would love to13.She`dbetter______ withthedag.A.nottoplayB.notplayC.don`tplayD.doesn`tplay14.You______ togoandseethedoctorrightnow.A.mustB.shouldC.haveD.will阅读理解Computers are useful machines.They can help people a 1ot in their everyday life.For example,they can help people save much timeand they can help people work out many problems they can"t do easily.Our country asks everyone to learn to use computers except the old people. Today more and more families own computers.Parents buy computers for their children. They hope computers can help them improve(高)their studies in schoo1.But many of the children use computers to play gamesto watch video or to sing Karaoke.instead of studying.So many teachers and parents complain that computers can not help children to study but make them fall behind.So computers are locked by parents in the boxes. In some other countries,even some scientists hate computers.They say computers let millions of people lost their jobs or bring them a lot of trouble. Will computers really bring trouble to people or can they bring people happiness? It will be decided by people themselves. 1. Why do we say the computer is a useful machine? Because . A.our country asks us to learn it B.it can help us a lot C.we can use it to play games D.it can help us to find jobs 2. What do many teachers and parents complain about? A.Their students and children use computers to play games.
B.Computers let them lost their jobs. C.Computers make the students and children fall behind.D.Computers bring people a lot of trouble. 3. In this passage we know computers ________. A.also bring us trouble B.bring us happiness onlyC.are hated by people D.are bad for people’ health 4. What does the underlined word “complain” mean? A.抱怨 B.赞赏 C.考虑 D.解释 5. How do you understand the last sentence of this passage? A.Computers are used by people B.People can live well without computersC.One must decide how to use computers D.Computers are strange machines