状语从句的讲解与练习.doc

高中英语语法复习: 状语从句状语从句是整个句子担任状语，在句子中修饰谓语（或其它动词）、形容词、副词或整个句子，它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。（一）时间状语从句：由no sooner than, hardly (scarcely) when （常要部分倒装）when, as, while, whenever, after, before, till (until), since, once, as soon as ，the moment, by the time, , every time等引导。（二）原因状语从句; 由because, since, as , now that（既然），for等引导。（三）地点状语从句：由 where 和wherever等等引导。（四）目的状语从句：由so, so that（从句谓语常有情态动词）, in order that, in case（以防，以免）等引导。（五）结果状语从句：由so that （从句谓语一般有情态动词）, so that, such that等引导。 （六）条件状语从句：分真实性（有可能实现的事情）与非真实性（条件与事实相反或者在说话者看来不大可能实现的事情）条件句。引导条件状语从句的词（组）主要有if, unless, so (as) long as, on condition that, so (as) far as, if only ( = if )。注意：条件从句中的if 不能用whether替换。 （七）让步状语从句：可由although, though, as, even if (though), however, whatever, whether or, no matter who (when, what, ) 等引导。注意：as引导的让步状语从句一般是倒装的。e.g. Though he is a child, he knows a lot. Child as he is, he knows a lot.Whatever ( = No matter what ) you say, Ill never change my mind.（八）方式状语从句：常由as, as if (though) (常由过去的某种时态表虚拟), the way, rather than等引导。e.g. You must do the exercise as I show you.He acted as if nothing had happened.（九）比较状语从句比较状语从句常用than, so (as) as, the more（ +句子），the more（+句子+ 等引导。e.g. I have made a lot more mistakes than you have.He smokes cigarettes as expensive as he can afford.The busier he is, the happier he feels.（十）使用状语从句时要注意的几个问题1、在时间和条件（有时也在方式、让步等）从句中，主句是一般将来时，从句通常用一般现在时表示将来。e.g. Well go outing if it doesnt rain tomorrow.2、有些时间、地点、条件、方式或让步从句，如果从句的主语与主句主语一致或虽不一致，但从句主语是非人称it），从句的谓语又包含动词be ，就可省略从句中的主语 ，把从句谓语变非谓语e.g. When (he was) still a boy of ten, he had to work day and night. If (it is) necessary Ill explain to you again.3、注意区分不同从句：引导的是什么从句，不仅要根据连词，还要根据句子结构和句意来判别。以where为例，能引导多种从句。e.g. You are to find it where you left it.（地点状语从句）Tell me the address where he lives.（定语从句，句中有先行词）I dont know where he came from.（宾语从句）Where he has gone is not known yet.（主语从句）This place is where they once hid.（表语从句）选择正确的答案1. I am sure Ill meet a kind-hearted man _ I go.A. where B. to the place where C. wherever D. the place 2. _ the headmaster comes, we wont discuss this plan.A. Unless，comes B.If not ，comes C.Except，will come D.Whether, will come3.Bill must have been away from the office. _ ow many times I phoned him, nobody answered it.A.Whatever B.No matter C.In spite of D.Though4.I had been to Beijing long _ you visited it. A.before B.till C.after D.when5. _ , he is good at drawing.A.To be a child B.A child as he is C.As a child D.Child as he is6.Dont be discouraged _ you have fallen behind others.A.whether B.as if C.even if D.however7. We can get there on time _ the car doesnt break down.A. while B. as long as C. so that D. even if8. The vase on the left is _ than the one on the right,and not .A. more nicer；so expensive B. much more better；as expensiveC. nicer；as expensive D. better；such expensive9. It wasnt long _ he joined the job. A.that B.before C.until D.and 10. These planes can fly _ than the old ones.A.as fast three times B.three times as fast C.three times fast D.three times faster11. _ had the bell rung _ the students took their seats.A.Hardly；when B.No sooner；when C.Hardly；than D.No sooner；then12. _ many times，but he still couldnt understand it.A.Having been told B. Though had been told C. He was told D. Having told13. _ we have come, lets stay and enjoy it. A. For B.As C. Because D. Since14.Youd better do you are required. A. like B.which C.that D.as15. _ that none of us could follow him.A. He spoke very fast B. So fast he spoke C. Too fast he spoke D. So fast did he speak16.Ill start early, _ it may be dark. A. however B.whether C.if D.though17. _ the baby fell asleep _ the room.A. After；did the mother leave B. Not until；did the mother leaveC. Not until；the mother left D. Soon after；the mother had left18. _ the day went on, the weather got worse. A. With B. Since C. As D. While19. He cant have gone out, _the light is still on. A. because B. since C. as D. for20. I was walking along the