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1、状语从句状语从句名 称常用连词时间When, while, as soon as, hardly.when, no sooner.than, scarcely.when, since（自从 “whenever, before, after ,till, until, the moment（the minute, the second, the instant, immediately, directly）,by the time, every time, each time, as long as（=so long as）地点Where, wherever条件If, unless, once（
2、一旦就）,in case（that）（万一）,so long as（as long as）,on condition that ,as far as（so far as）原因Because, since（既然）,now that, as , ,seeing that（看至 U“considering that（考虑到）结果Such（a, an）.that, so.that, so, so that, that.目的So that in order that, for fear that, in case （以防，以免）让步Though, although, as, ever if= even
3、though, whatever, whenever, wherever, however, whichever, whoever, whomever, no matter what, no matter when, no matter where, no matter how no matter which, no matter who, no matter whom, whether or not= whether .or not（不管 与否）比较As.as, not so/as.as, more.than, less.than方式As, just as, as if=as though1
4、. 时间状语从句时间状语从句常用 when, as, while, before, after, since, once ，till, until, as soon as, whenever, the moment/minute.（就）,the time, the day, every time,each time, last time （上次），next time, by the time of（到做某事的时候），no sooner.than. （一. 就. ）,hardly.when. （一. 就. ）等词来引 导。例如：It was raining hard when got to sc
5、hool yesterday.While he was doing his homework, the telephone rang.As he walked along the lake, he sang happily.He had learned a little Chinese before he came to China.After he finished middle school, he went to work in a factory.He was ill last time I saw him.No sooner had she heard the news than h
6、e cried.1）比较 while, when, as类别作用例句asas表示“当的时候”，往往和 when/ while通用，但它着重强调主 句与从句的动作或事情冋时或几 乎同时发生。She came up as I was cooking.（同时） The runners started as the gun went off.（几乎同时）when(at or during the time that )既可以表 示在某一点的时候，又可表示在某It was raining when we arrived.（扌旨时 间点）一段时间内，主句与从句的动作或 事情可以冋时发生也可以先后发 生。W
7、hen we were at school, we went to the library every day.（在一段时间内）whilewhile意思是“当的时候”或“在 某一段时间里”。主句中的动作或事 情在从句中的动作或事情的进展 过程中发生，从句中的动词一般要 用延续性动词。在when表示a period of time时，两者可以互换。Please dont talk so loud while others are working.He fell asleep while/when reading. Strike while the iron is hot.（用 as 或 when
8、不可，这里的 while意思是 “趁”）a. as, when 引导短暂性动作的动词。例如：Just as / Just when / When I stopped my car, a man came up to me. 我一刹车，有 一个人向我走来。b. 当从句的动作发生于主句动作之前，只能用 when 引导这个从句，不可 用 as 或 while 。例如：When you have finished your work, you may have a rest.c.从句表示随时间推移连词能用as,不用when或while。例如：As the day went on, the weathe
9、r got worse. 日子一天天过去，天气越变越坏。2）引导时间状语从句的连接词除上述外还有： till, not until ，until, before, sinceDont get off the bus until it has stopped.He waited for his father until（till）it was twelve oclock.before 的有关句型It will be +段时间+before+从句（一般现在时）“要过才”It will be five years before he returns from England.It wont be l
10、ong before +从句（一般现在时） “不久就会”It wont be long before he recovers from the injury.It was 3 years before he regained the love from his parents.It wasnt long before the whole nation rose up to drive the enemy out of their country.He rang off before I could answer it. hardly / scarcely when, no sooner tha
11、n, as soon as once 表示“一就”As soon as I have finished it , Ill give yu a call.Once you show any fear, he will attack you.We had hardly got / Hardly had we got into the country when itbegan to rain.No sooner had he arrived / He had no sooner arrived than she started complaining. directly, immediately,
12、the moment, the minute that. 一就He made for the door directly he heard the knock. each time, every time, next time, any time,by the timeEach time he came to my city, he would call on me. the day, the time, the first(second, third .)time, the spring (summer,autumn,winter)His mother died the spring he
13、returned.注意：表示未来情况，主句用将来时，从句用现在时。在时间和条件从句中，主句是一般将来时，从句通常用一般现在时表示一般将来 或者用现在完成表示将来完成。e.g. Well go outing if it doesnt rain tomorrow.Ill write to you as soon as I get to Shanghai.Dont get off the bus until the bus has stopped .2. 地点状语从句地点状语从句通常由 where, wherever 引导。例如： Where I live there are plenty of t
14、rees. 我住的地方树很多。Wherever I am I will be thinking of you. 不管我在哪里我都会想到你。Go where you like. Where there is a will, there is a way.注意：没有先行词(区别于定语从句)He advise me to livethe air is fresher.A. in which B. what C. where D. whenHe advise me to live in a placethe air is fresher.A. in which B. what C. that D. w
15、hich3. 原因状语从句引导词有 because, since, now that,(既然)as 和 for 比较 because, since, as 和 for：1) because 语势最强，用来说明人所不知的原因，回答 why 提出的问题。当原 因是显而易见的或已为人们所知，就用as或since。例如：I didnt go, because I was afraid. Since /As the weather is so bad, we have to delay our journey.2) 由 because 引导的从句如果放在句末，且前面有逗号，则可以用 for 来代替。 但如果不是说明直接原因，而是多种情况加以推断，就只能用for。例如：He is absent today, because / for he is ill. He must be ill, for he is absent today.3) since表示对方已经知晓，无需加以说明的原因或事实，语气比because弱。Ill do it for you since you are busy.4) now that 意为“既然”，与 sinc
