初中条件状语从句精讲和练习含答案

1、初中英语：条件状语从句一条件状语从句的概念条件状语从句，即在某种条件下，一件事情可能发生。在英语中由连接词if 或 unless 等引导的状语从句叫做条件状语从句。条件是指某一件事情实现之后（状语从句中），一件事 情（主句）才能发生，通常译作假如，只要，如果”等意思。条件状语从句中，主从句的时态要遵循主将从现”的原则。即，主句是将来时态时，从句用一般现在时代替将来时态。二. 条件状语从句的引导词conj .如果，假如If you ask him， he will help you .如果你请他帮忙，他会帮你的。If you fail in the exam , you will let him

2、 down . 如果你考试不及格，你会让他失望的。conj.除非，若不，除非在的时候 （if . not.）You will fail to arrive there in time un less you start earlier.如果你不早点动身，你就不能及时赶到那儿。Un less it rai ns, the game will be played.除非下雨，比赛将照常进行。as long as conj. 只要You may borrow my book as long as you keep it clea n.只要你保持书的清洁，你就可以把我的书借去。三. 关于条件句的时态，常

3、见的有以下三种情况：1、条件状语从句的主句是一般将来时，那么从句常常用一般现在时。When I grow up, I ll be a nurse and look after patients.我长大后要当一名护士，照顾病人。2、如果主句是祈使句，那么从句通常要用一般现在时。If you want to have a chat ,call me up. 如果你想聊天，打我电话。3、如果主句是含有情态动词时，根据需要从句多用一般现在时。You should be quiet whe n you are in the reading room.在阅览室时应保持安静。四. 知识拓展1 在以 when

4、 , before , as soon as 等引导的时间状语从句，也适用 主将从现原则，即如果主句是一般将来 时，从句则用一般现在时。Ill tell her the good news whe n she comes back.当她回来的时候，我将把这个好消息告诉她。she will give you a call as soon as she returns.她一回来就会给你电话。条件句的同义句：祈使句，and /or+将来时态的陈述句。Work hard ,and you will make great progress.=If you work hard,you will make

5、great progress.如果你努力学习，你才会取得大的进步。Hurry up, or you will be late.= If you don t hurryill be late.如果你不快点，你就要迟到了。条件状语从句练习精讲（含答案）I单项选择1. If you_ to the party, you II have a great time.A. will go B. went C. go D. going2. It will be a long time_Peter_ his work.A. since, has fini shed B. after, fini shes C.

6、 whe n, will finish D. before, fini shes.3. What will father_ us from Japa nA. take B. bring C. carry D. make4. Weifang is famous_kitesA. for B. to C. on D. with5.I_ her the an swer if she_ me.A. can tell, will ask B. will tell, will ask C. would tell, ask D. will tell, asks6. -What are you going to

7、 do tomorrow-We ll go to the library tomorrow if it_ .A. isn t rain B. rain C. won t rain D. doesn t rain7. Do you know whe n he will come back tomorrow-Sorry, I don t know. When he_back, I ll tell you.A. comes B. will come C. come D. may come8. What will you do if you_to the old folk s home visitA.

8、 go B. went C. going D. will go9. If I eat_ food, I ll be very fat.A. too many B. many too C. too much D. much too10. I ll give the book to him if he_ here n ext Sun day.A. will come B. comes C. is coming D. came11. There_an En glish film in our school tomorrow.A. is going to have B. will have C. is

9、 going to be D. has12. Could you tell us where_A. read B. am readi ng C. was readi ng D. am going to read14. What_ you_ whe n it bega n to rainA. do, do B. were, doing C. are, doing D. did, do15. I ll wake you up when he_ back.A. will B. is going to come C. comes D. comeAnswers : 1-5 CDBAD 6-10 DAAC

10、B 11-15 CBCBC二、用所给词的适当形式填空1. If you_ (feel) tired, you_(have) to have a rest.2. Where_ he_ (see) the film if he_ (have) time3. If there_(be) fewer trees, there_(be) more polluti on.4. He_(dress)more casually if he_ (not work) on weeke nds.A. will the n ext Olympic Games heldC. would the n ext Olympi

11、c Games be held13. Whe n my mother retur ned last ni ght, I_B. the n ext Olympic Games will be heldD. the n ext Olympic Games would be helda book.5. If Marcia_ (live) alone, she_ (keep) a pet parrot.6. Lana_ (buy) a new dress if the old one_(be) out of style.7. The twins_(fight) if they_(argue).8. I

12、_(have) a bake sale if I_(n eed) money for educati on.9. Peter_ (se nd) me a beautiful souve nir if he_(visit) Spain.10. If Mr. Gree n_(say) I am hard- work ing, my pare nts_ (feel) glad.11. I_(go) to the beach if it_ (not rain) this week.12. _they_ (have) a match if the . teacher _ (be) busy13. He_

13、(write) a letter to his gran dpare nts if he_ (get) his report card this week.14. If she_ (get) up late, she_ (not catch) the early bus.15. Peter_ (major) in En glish if he_ (pass) the exams in Pek in g?U ni versity.An swers:1 feel，will have2 willseehas3 are, will be4 will dresses, doesn t work5 liv

14、es, will keep6 will buy, is7 will fight,argue8 will have,n eed9 will send, visits10 says, will feel11 will go,doesn t rain12 Will haveis13 will writes,gets14 gets, wont15 will major, passesIII 完成句子1.如果他到得晚了，会发生什么事情Whatif helate2.如果努力学习，你就会取得好成绩。If you,yougood3. 他如果看电视太久了，他的父母会不高兴。If he_TV too long,

15、his pare nts_ un happy.4. 如果我们为他组织生日聚会，大家都会来的。Every one_if we_ a birthday party_him.5. 如果明天不下雨，我会和你一起去公园的。If it_tomorrow, I_ go to the park_ you.6. 如果她睡过头了，就会上学迟到的。She_ if she_7. 如果他没有空，他不会帮助你的。If he_ , he_ you.8. 如果 Tom 考试不及格，他就没有机会上高中了。Tom_ have the_ to go to the high school if he_ the exams.9. 如果

16、这个男孩打烂窗户，屋主会对他生气。If the boy_ , the house owner_10.如果明天不下雨，我就出去野餐。An swers1. was happened， came late4 will come, hold, for7 isnfree, won t helphim2 work hard, will get ，5 doesn t rain,will,with8 won tchaneefailssuccess. 3. watch, will be6 will be late for school, sleeps late9 breaks the window , will

17、 be angry at10. If it doesnt rain tomorrow, I will go out to have a picnic.you feel tired, you should have to have a rest.2. Where has he seen the film if he has time3. If there are fewer trees, there will be more polluti on.4. He will dress more casually if he doesn t work on weekends.5. If Marcia

18、lives alone, she should keep) a pet parrot.6. Lana should buy a new dress if the old one is out of style.twins will fight if they argue.8. I will have a bake sale if I n eed money for educati on.9. Peter will send me a beautiful souvenir if he tours Spain.10. If Mr Gree n says I am hard- work ing, m

19、y pare nts will feel glad.will go to the beach if it doesn t rain this week.12. Will they have a match if the . teacher is busywill write a letter to his grandparents if he gets his report card this week.14. If she gets up late, she won catch the early bus.15. Peter will major in English if he passes the exams in Peking University.Tran slate1. 如果他到得晚了会发生什么事情2. 如果努力学习，你就会取得好成绩。3. 他如果看电视太久了，他的父母会不高兴。4. 如果我们为他组织生日聚会，大家都会来的。5. 如果明天不下雨，我会和你一起去公园的。6. 如果她睡过头了，