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1、-If 引导的条件状语从句讲解与练习If引导条件状语从句的条件状语从句最常用的连词是if，常见的if条件状语从句表示在*条件下，*事很可能发生，条件是可能存在的。如： If you ask him，he will help you如果你请他帮助，他会帮你的。 If you fail in the e*am，you will let him down如果你考试不及格，你会让他失望的。 If you have finished the homework， you can go home如果你作业做完了就可以回家了。 1 if从句用一般现在时，主句用一般将来时 If he runs hell get
2、 there in time. 如果他用跑的，他就会及时赶到那儿。 The cat will scratch you if you pull her tail. 如果你拉猫的尾巴，它就会抓你。 2 if从句用一般现在时，主句用may/might/can/must/shouldIf it stops snowing we can go out. 如果雪停了，我们就可以出去。 If you want to lose weight you must/should eat less bread. 如果你想减肥，你必须少吃面包。(另外，if从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的
3、条件或假设。从句多用一般过去时或过去完成时，表示对现在或过去的一种假设。如： If I were you，I would invite him to the party如果我是你，我会邀请他参加聚会。 I would have arrived much earlier if I had not been caught in the traffic要不是交通堵塞，我本会来得早一些。 )If条件状语从句练习( )1. If I find his phone number, I _ you. A. tell B. told C. will tell D. have told( )2. I _ the
4、 CDs to you if I have time tomorrow. Awill return B. returned C. have returned D. return ( )3. The students will go to the Summer Palace if it _tomorrow.A. won t rain B. isn t raining C. doesn t rain D. isn t rain ( )4. I wont watch the TV play if my father _ me do my homework. A. let B. will let C.
5、 wont let D. lets ( )5. If you _quiet, Ill tell you what happened. A. will B. are C are to be D be ( )6. If you go to the party, you _ a good time. A. would have B. have C. will have D. had( )7. Dont worry. Peter will call you as soon as he _ London. A. will get to B. gets to C. get to D. got to ( )
6、8.He doesnt tell me when he _. Ill telephone you as soon as he _. A. will e, es B. will e, will e C. es, will e D. es, es ( )9.- I dont know if Dr. White _ to the party ne*t week. - I think he will e if he _ free. A. es; will e B. will e; will be C. es; is D. will e; is( )10. I dont know if there _
7、a sports meeting ne*t month. If they _ it, I must get ready for it. A. is; will hold B. will be; hold C. will be; will hold D. will have; hold 宾语从句练习 ( ) 1. I dont know _. A. what does he like best B. what he like best C. what he does like best D. what he likes best( ) 2. Can you tell me _ A. where
8、she lives B. where does she live C. she lives where D. where she live( ) 3. He asked me _.A. what time is it B. what time it is C. what time was it D. what time it was( ) 4. Do you know _ A. how much did it cost B. how much it did cost C. how much it costs D. how much does it cost( ) 5. The man aske
9、d her _. A. why did she do it B. why she did it C. why she does D. why does she do it( ) 6. Nobody knows _. A. when will she e back B. when she e back C. when she will e back D. when does she e back( ) 7. Mum asked _. A. where he was B. where was he C. where he is D. where is he( ) 8. Do you know _
10、A. what they are looking for B. what are they looking for C, they are looking for what D. what do they look for() 9. The teacher asked _. A, who can answer this question B. who could answer the question C. what question did she ask D. she answered this question( ) 10. I asked her _. A. whether he ha
11、s been to Australia B. whether has he been to Australia C. whether he had been to Australia D. whether he goes to Australia( ) 11. The teacher told us _. A. that light traveled faster than sound B. if light traveled faster than sound. C. that light travels faster than sound D. if light travels faste
12、r than sound( ) 12. He said that _. A. he is doing his homework B. he does his homework C. he was doing his homework D. he do his homework( ) 13. I asked him _. A. where did he go B. where he went C. where does he go D. where he did go( ) 14. -E*cuse me, could you tell me _ get to the plane -Certainly. Go straight alone here. A. how can we B. how we can C. when can we D. when we can( ) 15. Do you know _he will ride here at 8 tomorrow morning A. when B. where C. whether D. how( ) 16. -Can you tell me why _ -Because I wan
