普陀新王牌高中英语状语从句1.docVIP

高一英语语法知识（6） 状语从句(1)—时间状语从句、原因状语从句 状语从句主要用来修饰主句或主句的谓语。一般可分为九大类，分别表示。1、when, while, as 引导时间状语从句 1).when(at or during the time that) 只表示一般的时间关系，它既可指时间的一点(a point of time)，也可指一段时间(a period of time)。用when时，从句的动作可与主句的动作同时发生，也可先于主句的动作，因此when用得最多。 When the clock struck twelve, all the lights went out. Dont forget to return this book for me, when you go to the library. 2).while(during the time that) 只能指一段时间，而不能指一点时间。用while时，从句的动作或者与主句的动作同时发生，或者主句的动作是在从句的动作的进展过程中发生的。因此，。这是while与when的主要差别。 Strike while the iron is hot. Please dont talk so loud while people are working. 3). s (at the same moment that) 往往可与when通用，但它着重指从句与主句的动作相伴随发生，可译成：一面……一面，随着……as用得较多。 Kate read the book as she went along.We took notes as we listened to the lecture. As it became more common for women to work outside the house, men began to share the housework. 随着妇女就业普遍了，男职工分担了家务劳动。 1).在用when和while连接的从句中，常省略与主句相同的主语和相应的be，而在as连接的从句中一般则不省略。 Wood gives much smoke while (it is) burning. He fell asleep while (he was) studying his grammar book. While in London, he studied music.When (they are) heated, metals expand. 2).when和while还可作并列连词用： when做连词引导并列句,译为“这时”，表示同时，前面有逗号，不能用while代替。所构成的并列句句型有： was/were about to do … when was/were on ones way… when was/were on the point of doing…when 刚好做某事…这时 was/were doing… when 正好做某事…这时 had done… when 刚好做完某事…这时 Joan was holidaying with her family in a wildlife park when she was bitten on the leg by a lion. I was about to go to bed when the telephone rang. B. while 做连词引导并列句,译为而表示对比。 2. as soon as “一……就……” 引导时间状语从句,类似意思的连词还有九个，分三组： the moment immediately No sooner ...than… the minute directly Hardly...when… the instant instantly Scarcely ... when... 第一组：the+名词the moment/ the minute/ the instant 第二组：ly 形式immediately/ directly/ instantly 第三组 倒装句/ No sooner…than…/Hardly…when…/ Scarcely…when… The moment she comes, Ill call you.She left here immediately the clock struck 12. Hardly had he got off the bus when he heard a loud nois