1、单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,The Adverbial Clause(,状语从句,),1,、时间状语从句:,从属连词有:,when,while,as,whenever,before,after,since,till,until,as soon as,once,等。,注意:,(,1,),when,as,while,when,既可引导持续性动作,又可引导短暂性动作。它表示动作同时发生,或从句的动作发生在主句动作之前。,as,引导持续性动作,侧重主句和从句的动作同时发生。,e.g.He sang as he walked.,While,:,
2、指的是“在某一时间里”,“在,期间”,从句里的动作必须是,持续性,的,它也强调主句和从句动作的同时发生,往往侧重主句和从句动作的对比。,e.g.While we were watching TV,he was writing a composition.,while,也可做并列连词,表示对照的意思。如:,e.g.He is tall while his brother is short.,当,when,as,while,表示“在,一段时间里”,主从句的动作同时发生时,可以换用。如:,e.g.While(When或As)we were discussing,Mr.Smith came in.,注
3、意:,(,2,),as soon as,=The moment/minute/second/instant,=No sooner .than./Hardlywhen./Scarcelywhen.,=directly/immediately/instantly,=On/Upon,sth,./doing,注意:,(,3,),Before,e.g.I had waited long before she came.,It wont be long before she comes back.,They hadnt been married a month before they quarrelled
4、since,表从过去某一时间或动作、事情起到目前为止,“自,.,以,来”,句型:,It is(has been).+since+,一般过去时,e.g.It is five years since I began to learn English.,注意:,(,4,),since,肯定句中,主句用持续动词,表示“,直到,为止,”。,e.g.I worked till(until)he came back.,否定句中,主句用瞬间动词,表示“,直到,才,”。,e.g.I didnt go to bed until(till)he came back.,注意:,(,5,),till/until,句
5、首,一般用,until,。,Each/every time,Last/next time,The first time,By the time,注意:,(,6,),由,where,wherever,anywhere,everywhere,引导,2,、地点状语从句:,由,because,as,since,now that,引导。,区别是,:,because,:,表示“因为”,直接而明确的原因和理由,语气最强,,why,提问的句子,一般都用,because,回答。,e.g.He didnt come because he was ill.,3,、原因状语从句:,since,:,表示“既然”,语气比
6、because,弱。,e.g.Since you are here,you must do it.,now that,意思与,since,相似,表示“既然”。,e.g.Now that all the guests have arrived,lets have our dinner.,注意:,在强调句中强调原因状语从句,,只能用,because,引导,不可用,as,或,since,,,如:,It was,because he was ill,that he didnt go with us.,because,可以引导表语从句,而,as,since,不可以,Its,because he is
7、too lazy.,for,也,表示“因为”,但是并列,连词,它连接的不是状语从,句,语气比较强。,It must be morning,for the birds are singing.,由,so that,in order that,in case,(,以防、免得),for fear that,等引导:,He got up early,in order that,he,could,catch the early bus.,She married him,so that,she,might,tend and comfort him.,I explained again and again,
8、in case,he,should,misunderstand me.,I hid the book,for fear that,he,should,see it.,4,、目的状语从句:,由,that,sothat,suchthat,引导:,注意,:,so,后面跟的是形容词和副词,such,后面跟的是名词(词组),5,、结果状语从句:,由,if,unless,as long as(=so long as)(,只要,),in case(that)(,如果,万一,),only if,providing(that),等引导:,In case that I forget,please remind m
9、e about that.,6,、条件状语从句:,由,though,although,as(,虽然尽管,),even if,even though,wh,-ever,no matter-,wh,whether,引导,.,7,、让步状语从句:,注意:,(,1,)让步状语从句在句中的位置可前可后,有时还可以插在主句中间,前置时,强调主句内容,后置时强调从句内容。,(,2,),though,与,although,同义,用法基本一样,前者通俗,口语化;后者较正式,多放于句首。不能与,but,连用,但可以与,yet,still,等连用,用来加强语气。,Though(Although)he was tir
10、ed,yet(still),he went on working.,(,3,),as,引导让步状语从句时从句部分,语序要部分倒装。如:,Young as he is,he can read and write in several foreign language.,(,表语提前),Child as he was,he had to support the family.,(,表语名词提前常省去冠词),1.,由连词,asas,not so(as)as,than,等引导:,2.“the+,比较级,(,接从句,),,,the+,比较 级,(,接主句,),,这一句型也归在比较状语从句内。,8,、比较状语从句:,由,连词:,as,as if,as though,引导:,as if,和,as though,意义和用法大致一样,引导的从句多用虚拟语气,但也可用陈述语气。,He treats me,as if I were his own son.,He walked,as if he were drunk.,9,、方式状语从句:,结束,






