北师大版高中英语必修一Unit1《 状语从句》课件(共24张PPT).ppt

1、状语从句Adverbial ClauseAliceMingguang Middle school状语从句定义及分类状语从句就是用不同的连接词将几个分句连接起来，以表达分句之间特定的逻辑关系。时间状语从句地点状语从句原因状语从句结果状语从句目的状语从句条件状语从句让步状语从句比较状语从句方式状语从句引导词的意义一时间状语从句常用引导词：when,while,as,as soon as,before,since,till/until,after,no sooner.than等 1 when as while1）as和when从句中既可用持续性动词也可用短暂性动词作谓语。while从句中用持续性动词

2、作谓语。当从句中的谓语动词为持续性动词时，这三者可以通用Mother was worried because little Tom was ill,especially as/when/while father was away in France.The telephone rang while I was taking a bath2)as可译为“一边.，一边.”或“随着”He looked behind from time to time as he went.As time goes by,.3)当主从句之间表示转折或对比关系时，多用while。She thought I was ta

3、lking about her daughter,while in fact,I was talking about my daughter.4)When:at that time 常用句型5)be doing sth when6)be about to do when7)be at the point of doing when8)had done sth when did2 一 就as soon asthe minute,the moment,the instant,immediately,directly,instantlyhardly/scarcelywhenno soonerthan

4、On/upon+n/doingNo sooner had I arrived home than it began to rain.Hardly had I arrived home when it began to rain.他刚到达那里就生起病来。He had no sooner arrived there than he fell ill.=No sooner had he arrived there than he fell ill.他还没全说完，就有人起来反驳他的论点。He had hardly finished when someone rose to oppose his poi

5、nts.=Hardly had he finished when someone rose to oppose his points.时间短语引导的时间状语从句时间短语引导的时间状语从句next time,by the time,every time,each time,the day etc.Next time you come,remember to bring along your sister.In the classic childrens tale,the puppet Pinocchios nose grows longer every time he tells a lie.关

6、注：1.by the time强调“一个动作在另一个动作之前完成”，因此主句主要用完成时态。By the time they arrived,we had already left.By the time they arrives,we will have already left.2.the first time for the first time it is was the first time that.3 since before1)Since2)Great changes have taken place since you left.3)He has written to me

7、since frequently since he was ill.It has been a year since I worked here.注意此时从句的翻译重点句型：It is/has been+.+since+did2)Beforea.重点句型：It will be/was+.+before+It will be some time before we know the full results.b.可译为“还没来得及，还没”The thief escaped before the police came.Before I could get in a word,he went aw

8、ay.4.till/until四个重要句型：肯定式：延续性动词+till/until否定式：非延续性动词+till/until强调句式：It is/was+not until+that+倒装句式：Not until+从句+部分倒装He waited for us till/until ten o clock.I cant go home until/till Saturday.Until Saturday I cant go home.(till不放句首)It was not until he finished his work that he went to bed.Not until he

9、 finished his work did he go to bed.二二 地点状语从句地点状语从句常用引导词：where,wherever,anywhere,nowhere,everywhereStay where you are.A driver should slow down where there are schools.Wherever he happens to be,Mr.Zhang can make himself at home.Where there is self-doubting,we wish you a renewed confidence in your ab

10、ility to work through them.三三原因状语从句原因状语从句引导词：because,since,as,for,now that,seeing that,in thatMy friends dislike me because I am handsome and successful.Since we dont have class tomorrow,why not go out for a picnic?As Monday is a national holiday,all government offices will be closed.It rained last

11、night,for the ground is wet this morning.The girl is like her mother in that she also has very delicate feeling.四 目的状语从句引导词：so that,in order that，for fear that,lest,in case.I spoke slowly and clearly so that the audience could understand me.We climbed high so that we might get a better view.(so that

12、引导目的状语从句时，常带有情态动词may,might,can,could)Take an umbrella with you lest it should rain.People evacuated the building for fear that the wall should collapse.注意：to,in order to,so as to,in case of,for fear of引导的目的状语成分五 结果状语从句引导词：so that,Sothat ,suchthat.I was so late that I didnt have time to deal with it.

13、His anger was so explosive that he lost control of himself.So fast does the light travel that it is difficult for us to imagine its speed.(倒装)so so 与与suchsuch用法比较用法比较Sothat结构常见于：1.so+形副that 2.so+形a(an)单数名词that 3.somany/much/little/few复数名词（不可数名词）+that suchthat结构常见于：1.sucha(an)形名词that 2.such形复数名词不可数名词

14、that 六 条件状语从句引导词：if/unless,suppose(that),supposing(that),providing/provided(that),assume/assuming that,so/as long as,on condition thatin caseIf winter comes,can spring be far behind?You dont need an umbrella unless it is raining.In case he comes,tell him to wait.I may lend you the book on condition

15、that you return it to me in time.Supposing he doesnt finish his work,will you punish him?七让步状语从句引导词：Though,although,even if,even though,while,as Whether.or.,wh-ever,no matter wh-,despite,in spite ofAlthough/Though he tried hard,(yet/still)he failed.While I agree with your point of view,I can not acc

16、ept it.Whoever may trouble you,I will help you Whether you agree or not,I will study abroadadj.adv.+as+主+谓名词动词Young as he is,he is knowledgeable.Much as I respect him,I can not agree with him.Child as he is,he knows a lot.Lazy a boy as he is,he is kind to help others.Praised as he was,he remained mo

17、dest.八比较状语从句引导词：than,as/so.as,the+比较级，the+比较级The work is not as difficult as you think.The weather of the South is wetter than that of the North.The more we help others,the more we receive in return.注意 1)as.as用于肯定或否定句，so/as只用于否定句 2）as+形容词副词原级+as as+形容词+a/an+可数名词单数+as as+形容词+复数名词或不可数名词+asTeaching is

18、as much an art as it is a science.There are not as many people as in your villiage2）倍数表达法3）下列句型Just as dark clouds cannot long hide the sun,so no lies can cover up the fact.The people is to the peoples army what water is to fish.A is to B what C is to D九九方式状语从句方式状语从句引导词：as,just as,as if though,the way,howWhen in Rome,do as the Romans do.Do as I say,not as I do.Do it the way you were taught.The old man runs very fast as if he were a young man.状语从句的省略（考点）When walking,she found a shining thing on the ground.He will come if asked.Dont speak unless spoken to.I will help you if possible.