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1、高二英语Book 5 Module 5 状语从句重难点讲解本模块中我们复习了时间状语从句、条件状语从句和让步状语从句。下面我们来看看这三种从句中需要注意的几点。时间状语从句 1. before / since“It be + 一段时间 + before .”结构，在肯定句中常译为“多久之后才”；在否定句中常译为“不久之后就”。如：It will be three years before he graduates from university.It was not long before he found another job.“It is / has been + 一段时间 + sinc
2、e .”结构中, since从句的谓语动词多用一般过去时，表示动作或状态的完成，计时的起点是动作或状态完成的那一时刻。在语义上，从句动词为延续性动词时，含有否定的意味；从句动词为非延续性动词时，含有肯定的意味。如：It is 3 years since he were here. （表示“他不在这儿已经3年了”）It is 3 years since he stopped smoking. （表示“他不抽烟已经3年了”）2. when / as / while表示“当时”，when引导的从句的动作和主句的动作可以同时发生，也可先后发生，从句中的动词既可以是延续性的，也可以是非延续性的；as，w
3、hile引导的从句强调主句和从句的动作同时发生，并且从句中的动词通常是延续性的。如：When I lived there, I used to go to the seashore on Sundays.While you were reading the paper, I was working.As the kids walked home, they sang happily.注意：当从句表示“随着”时，连词只能用as。如： As the day went on, the weather got worse.3. till / until两者都表示“一直到；直到才”，基本上可以互换，但t
4、ill一般不位于句首。当表示主句动作延续到某时才停止时，主句用肯定句；当表示主句动作到某时才开始发生时，主句用否定句。如：Ill wait here until / till the result comes out.(wait这个动作延续到the result comes out停止，主句用肯定句)I wont leave here until / till the result comes out.(leave这个瞬间动作到the result comes out才发生，主句用否定句)条件状语从句 1. only if意为“只有，只要”，位于句首时句子用倒装结构。如：Only if you
5、 put your heart into your work can you realise your dream.2. 引导条件状语从句的从属连词有：if，unless，so / as long as, in case, on condition that, suppose / supposing, provided that等。让步状语从句 1. as / though / althoughas 引导让步状语从句必须采用倒装结构，常用结构为“形容词、副词、名词（其前不用冠词）、动词 + as + 主语 + 其他”。though比较口语化，为了强调，从句可以倒装；although 比较正式，
6、多用于句首；两者都不与but连用，但可与still，yet，nevertheless连用。如：Young though / as he is, he runs the company successfully.Though / Although we warned him about the danger of travelling in the forest alone, he went there without telling us.2. “no matter + 疑问词”或“疑问词 + ever”引导让步状语从句，意为“不管；无论”，后面用陈述句语序。 whether . or .,
7、也可表示让步关系， 意为“不管还是”。如： Whatever (= No matter what) you say, he wont believe you. Ill not have you worry about her whether shes well or ill.【即学即练】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. Nancy enjoyed herself so much _ she visited her friends in Sydney last year. A. that B. which C. when D. where2. A small car
8、 is big enough for a family of three _ you need more space for baggage. A. once B. because C. if D. unless3. Im sorry youve been waiting so long, but itll still be some time _ Brian get back. A. beforeB. sinceC. tillD. after4. _, his idea was accepted by all the people at the meeting. A. Strange as
9、might it sound B. As it might sound strange C. As strange it might sound D. Strange as it might sound5. _ tomorrow, our ship will set sail for Macao. A. However the weather is like B. However is the weather likeC. Whatever is the weather like D. Whatever the weather is like状 语 从 句 练习1. He had rushed
10、 out of the room _ I could offer my thanks. unless B. until C. after D. before2. He likes to read _ there is nobody else. A. where B. the place where C. at which D. which3. _ you have found, you must give it back to the person it belongs to. A. Whenever B. Whatever C. However D. That4. After the war
11、, a new school building was put up _ there had once been a theatre.A .that B. where C. in which D. when5. He went home for lunch_ the clock struck twelve.A. while B. immediately C. right away D. at once6. She wont leave the TV set,_ her husband is waiting for his supper.A. as though B. even though C
12、. whether D. whenever7. It was _ the old worker came that we _ the experiment.A. until, didnt begin B. not until, began C. until, began D. not until, didnt begin8. _ much advice I gave him, he did exactly what he wanted to.A. How B. Whatever C. No matter D. However9. This is an illness that can resu
13、lt in total blindness _ left untreated.A. after B. if C. since D. unless10. I felt somewhat sad and was about to leave _ something happened which drew my attention.A. unless B. until C. when D. while11. No matter how fast we worked, _.we couldnt catch up with them B. and we couldnt catch up with the
14、mC. so we couldnt catch up with them D. but we couldnt catch up with them12. The man who was being followed stopped from time to time _ he wanted to tie his shoelaces.A. as if B. like C. what D. as13. We have to delay the party till next week, _ we will not have something important to do.A. when B.
15、which C. at which D. that14. Doctors have said that as many as 50 % of patients dont take medicine _ directed.A. like B. so C. which D. as15. I think you ought to end it_ it is too late, or youll kill yourself.A. even if B .before C. so that D. once16. - What was the party like?- Wonderful. Its year
16、s _ I enjoyed myself so much.A. after B. before C. when D. since17. I thought her nice and honest _ I met her.first time B. for the first time C. the first time D. by the first time18. John may phone tonight. I dont want to go out _ he phones.A. as long as B. in order C. in case D. so that19. _, Mot
17、her will wait for him to have dinner together.A. However late is he B. However he is lateC. However is he late D. However late he is20. Someone called me up in the middle of the night, but they hung up _ I could answer the phone.A. as B. since C. until D. before21. _ the day went on, the weather got
18、 worse.A. With B. Since C. While D. As 22. It was not _she took off the glasses _ I realized she was a famous film star.A. when; that B. until; that C. until; when D. when; until23. - Im going to the post office. - _ youre there, can you get me some stamps?A. As B. While C. Because D. For24. John sh
19、ut everybody out of the kitchen _ he could prepare his grand surprise for the party.A. which B. when C. so that D. as if25. He hurried out of the room _ the meeting was over.the moment B. a moment ago C. after a minute D. minute after26. Those college students will go _ they are needed after graduat
20、ion.A. to place B. to where C. wherever D. to matter where27. I think I should prefer to go on Friday, _ its all the same to you.A. unless B. if C. as soon as D. though28. - The experiment is of particular importance.- I see. Well carry on with it _we can get enough money.A. until B. unless C. whether D. however29. - Dont you believe me?- _, Ill believe _ you say.A. No, whatever B. Yes, no matter what C. No, no matter what D. Yes, whatever30. A person doesnt necessarily grow wiser _ he grows older.A. as B. with C. since D. while