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1、状语从句引导词 状语从句种类常用连接词特殊连接词时间状语从句When, while, as,before, after since,till, until,as soon as1. 一些时间名词：the moment, the instant, the minute, the day, next time, every time2. 一些副词：instantly, immediately, directly3. 固定搭配的连词：no sooner-than, hardly-when, scarcely-when.地点状语从句Where Wherever, anywhere, everywher
2、e原因状语从句Because, as, for, sinceSeeing that, considering that, now that, given that, in that, inasmuch as, insomuch as目的状语从句So that, in order that, that，Lest, for fear that, in case, in the hope that, on purpose that, for the purpose that, to the end that结果状语从句So-that, so that, such-thatSuch that, to
3、the degree that, to the extent that, to such a degree that, to such an extent that条件状语从句If, unlessSuppose, supposing, providing, provided(关注：supposed, provide不用作条件从句的连词）on condition that, as/so long as，only if让步状语从句Although, though, even though,even ifWhile(一般用在句首), as(用于倒装结构), in spite of the fact
4、that，whatever, whoever, whichever, however, whenever, wherever, whether - or-, as adj. as +主谓结构用在句首比较状语从句as(同级比较),than(不同程度的比较)The more-, the more-;just as-, so-;A is to B what/as C is to D;no more-than;not A so much as B/not so much A as B方式状语从句as, as if，how，the way状语从句的简化状语从句的省略状语从句同时具备下列两个条件:主句和从
5、句的主语一致，或从句主语为it；从句主要动词是be的某种形式。从句中的主语和be动词常可省略。例如：When ( the lab is ) completed ,the lab will be open to the public . Hell go to the seaside for his holiday if (it is ) possible.另外，比较状语从句经常省略。例如：Im taller than he (is tall ). The higher the temperature (is), the greater the pressure (is ). 状语从句的简化现象常
6、存在于以下五种状语从句中:由if, unless等引导的条件状语从句;由although, though, even if / though等引导的让步状语从句;由when, while, as, before, after, until / till等引导的时间状语从句;由as, as if等引导的方式状语从句;由as,than等引导的比较状语从句。(1)当状语从句的主语是it,且谓语动词是be时,it和be要完全简化掉。例如:If (it is) possible, he will help you out of the difficulty. You must attend the me
7、eting unless (it is) inconvenient to you.(2)当状语从句的主语和主句的主语一致时,从句可以将主语和be动词简化掉。a.连词+形容词As (he was) young, he learned how to ride a bike.Whenever (she is) free, she often goes shopping.Work hard when (you are) young, or youll regret.少壮不努力,老大徒伤悲。b.连词+名词While (he was) a young boy, he was always ready to
8、 help others.Although (he was) a farmer, now he is a famous director. c.连词+现在分词As (she was) walking along the river bank, she was singing a pop song. Although (he is) doing his best in maths , he has still got no good marks. d.连词+过去分词He wont go there with us unless (he is) invited. The concert was a
9、 great success than (it was) expected. e.连词+不定式He stood up as if (he were) to say something.当时他站起来好像要说什么。He wouldnt solve the problem even if (he were) to take charge.f. 连词+介词短语She looked anxious as though (she was) in trouble. He had mastered the English language before (he was) in the USA. 注意:当从句主
10、语和主句主语不一致时,从句部分要么用完全形式,要么用独立主格结构来表达。例如:When the meeting was over, all the people went out of the meeting-room.当会议结束时,人们都走出了会议室。(=The meeting over, 状语从句巩固练习1. John shut everybody out of the kitchen _he could prepare his grand surprise for the party. A. which B. when C. so that D. as if2. I would appr
11、eciate it _you give me a hand this afternoon.A. until B. if C. when D. that3. education is about learning and the more you learn，_.A. the more for life are you equippedB. the more equipped for life you areC. the more life you are equipped forD. you are equipped the more for life4.After the war，a new
12、 school was put up _there used to be a theatre.A. that B. where C. which D. when5. Is Mr. Smith in the office?Yes，_ he is in charge of the office，he must be there.A. since B. however C. whether D. for6. As your good friend, I will do _help you.A. that I can to B. what I can to C. all that I can D. w
13、hat I can7.John may phone tonight. I dont want to go out _he phones.A. as long as B. in order to C. in case D. so that8.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. before9. Dont look down upon Bob. He has his own advantages.Oh, yes. _others are weak, he is strong.A. If B. When C. Where D. Though10.It is ten years _he smoked.A. that B. when C. since D. while11.We must hurry up _catch up with the last train.A. that B. so that to C. in order that D. in order to12.No matter _hard it may be，I will carry it out.A. what
