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1、The grammar: The adverbial Clauses1.The adverbial clause of time: when, whenever, as , while, before, after, since, until/till, as soon as, once, the moment, etc.Whenever you come, you are welcome.We were about to leave when it began to rain.Sometimes you should takes notes while you are listening.Y
2、ou are listening while he is talking. when,while 还可以做并列连词还可以做并列连词 as 的用法：的用法：1）as 引导时间状语从句时，引导时间状语从句时， 强调并行发生，强调并行发生，不分先后。不分先后。As I left the house, I forgot the key.2）as还可以说明两种正在发展或变化的情况，还可以说明两种正在发展或变化的情况， 有有“随着随着” 的意思，的意思， 表示时间的推移。表示时间的推移。As he gets older, he gets more optimistic.3）as 常用作常用作“一边一边一边
3、一边” 4）as 强调两个动作紧接着发生。强调两个动作紧接着发生。As he was going out, it began to rain.5) as 有时引导一个名词，有时引导一个名词， 这时它相当于一个时这时它相当于一个时间状语从句。间状语从句。As a boy (When he was a boy) , he was hopeless at maths.1)since后如果是终止性动词的过去式，后如果是终止性动词的过去式， 则时间的则时间的起点应从该动作发生时算起。起点应从该动作发生时算起。Mr.Li has been here since he came back.2) since
4、后如果是延续性动词的过去时，后如果是延续性动词的过去时， 则时间则时间的起点应从该动作结束时算起。的起点应从该动作结束时算起。He hasnt been back at school since he was ill.I havent heard from him since he lived here.Fill in the blanks with “ when, while, as”:I was about to leave _ it began to rain.Hardly had I taken out my wallet _ a robber took it away.I like
5、tea _ he likes coffee._ a young man , Lincoln often helped his father on the farm.2)till, until两者可互换，两者可互换， 但在句首，但在句首， 强调句，强调句， 以及以及not until 放句首时，放句首时， 只用只用 until.whenwhenwhileAsUntil it stops raining, _.雨不停孩子们就不能外出。雨不停孩子们就不能外出。It is not until _. 只有认识到自己的错误，只有认识到自己的错误， 你才能取得进步。你才能取得进步。Not until _.2
6、. The adverbial clause of place: where,whereverWherever 要与它引导的名词要与它引导的名词 性和让步状语从句区分开来性和让步状语从句区分开来。We will go wherever you ask us to.Wherever you go is up to you.Wherever you go(=No matter where you go) , it is up to you. the children cant go outyou realize your mistake that you can make progressyou
7、realize your mistake can you make progress3. The adverbial clause of cause becausesince(now that)as for conj. “因为因为” 它是并列连词，它是并列连词， 不是用来说不是用来说明原因，明原因， 而是用来表示一种附带补充解释，说而是用来表示一种附带补充解释，说明，表示一种推理，明，表示一种推理，for 引导的句子不放句首引导的句子不放句首。We must start early, for we have a long way to go.He must have done it by hi
8、mself for there was no one else in the room.4. The adverbial clause of purpose: in order that, so that, （只放主句之后）（只放主句之后）for fear that, in case, lest 生怕，生怕， 以免，以防万一以免，以防万一 The boy hid himself behind the tree in case /for fear that his father should see him.Take your raincoat in case/ lest it rains.5.
9、The adverbial clause of result: so that, sothat, suchthat, 谓语常用谓语常用can, could( may, might)6. The adverbial clause of condition: if, in case, unless, so/as long as, on condition thatWhat shall we do in case it rains tomorrow?7. The adverbial clause of way: as, as if (though)He nodded as if he agreed
10、with us.He treated me as if I were a stranger.Balloons float in the air as boats float on water.8. 让步状语从句让步状语从句: though, although, even if=even though, while(放句首放句首 ), as (要倒装要倒装) whetheror 疑问词疑问词 +ever=no matter+疑问词疑问词+everHe has to do the job, whether he likes it or not.9. 比较状语从句比较状语从句: more than;
11、 asas, not as/so .as,Millionaire as he is , he is kind to everyone.Try as he might ,he could not find a job. Pay attention: 1)时间，条件，方式和让步状语时间，条件，方式和让步状语从句中用一般现在时表示将来时从句中用一般现在时表示将来时Even though it snows heavily tomorrow, we must go to help them.Next time you will have to recite the text as the teacher
12、 asks you. 2）强调句与状语从句的区别强调句与状语从句的区别It was at 5 oclock that the traffic accident happened.It was 5 oclock when the traffic accident happened.3) 状语从句中的省略：状语从句中的省略：He will come to the party if invited.If necessary, Ill send for the doctor.He was knocked down while crossing the street.Fill in the blanks with articles where necessary. He will come to the party if he is invited.If it is necessary, Ill send for the doctor.He was knocked down while he was crossing the road Fill in the blanks with articles where it is necessary.
