九年级状语从句.docx

状语从句在主从复合句中修饰主句中的动词、形容词或副词等。状语从句由从属连词引导，与主句连接，位于句首时，常用逗号分开，位于句末时，其前一般不用逗号。状语从句根据其用途可分为时间状语从句、条件状语从句、原因状语从句、目的状语从句、结果状语从句、让步状语从句等。状语从句一览表分类从句的引导词例 句时间状语从句when / while / as?当……时；before?在……之前；after在……之后；since自从；as soon as一……就；until直到……为止I ___________ (do) my homework when Mum came in.?He didn’t go to bed until his father __________ (回来).条件状语从句if如果；as long as只要；unless除非；如果不If it _________ (下雨) toorrow, I will stay at home.Unless the bad weather stops me, I go for a walk every day.我每天都会去__________，除非遇上坏天气。原因状语从句because因为；since既然；as由于I like to eat fruits because they ______________ health.我喜欢吃水果，因为它们对健康有益。Since everyone is here, let’s begin our meeting._________每个人都到了，咱们开始开会吧。目的状语从句so that以便，为了；in order that为了He _________________ (早起) every morning so that he can catch the early bus.结果状语从句so that结果是；so…that / such…that如此……以至于……He cried loudly so that everybody _______ (听见) him.It’s so hot outside that nobody __________ (want) to go out.让步状语从句though/ although尽管，虽然；even if / even thugh即使；whatever无论什么；wherever无论哪里；whenever无论何时I finished ________ (吃) the dish though I didn’t like it.?Wherever ___________ (你去哪里), I will go with you.地点状语从句where哪里；wherever无论在哪里Sit wherever you like.?请随便坐。Please put it where it was.?请把它放回原处。?考点一：时间状语从句1、当主句是一般将来时或祈使句表示将来的意义时，时间状语从句用一般现在时。如：???????I’ll _____________ as soon as I get to Beijing.?我一到北京就给你打电话。2、when / while / as引导时间状语从句，表示主句和从句的动作同时发生；before表示主句的动作发生在从句的动作之前；after则表示主句的动作发生在从句的动作之后；as引导时间状语从句时，强调同时发生，不分先后。如：???????When I walk to school, I walk _____________________ (沿着人行道).☆?when / while / as的区别①?若主、从句表示两个同时进行的持续性动作，且强调主句表示的动作延续到从句所指的整个时间，通常要用while。但是，若主、从句表示的两个同时进行的动作含有“一边……一边”之意思，通常要用as。如：Don’t talk while you’re eating.?吃饭时不要说话。I kept silent while he ________________.?在他写的时候，我默不作声。She sang as she went along.?她边走边唱。②?若从句是短暂性动作，而主句是持续性动作，可以用as或when但不用while。如：When / As he _____________, I was listening to the radio.?他进来时，我在听收音机。It was raining ___________ when / as we arrived.?我们到达时正下着大雨。③?若主、从句表示的是两个同时?(或几乎同时)?发生的短暂性动作，一般要用as (也可用when