高中英语状语从句用法详细解析.pdfVIP

欢迎来主页下载 精品文档 高中英语状语从句用法详细解析 一、 定义： 在句中作状语的从句是状语从句， 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，从属连词在句中不充当句子成分，只起连接 作用，状语从句放在句首时，要用逗号，放在句尾时不用。 二、 分类 根据意义上的不同，状语从句可分为：①时间状语从句②地点状语从句 ③原因状语从句④目的状语从句⑤条件状语从句⑥结果状语从句⑦让步 状语从句⑧方式状语从句⑨比较状语从句 三、 时间状语从句 （一）引导 时间状语从句的连词有： as, when(whenever), before, after, as soon as, until(till), since, every time, once. （二）、 “as ” as, when, while 都有“当……的时候”，可以互用 When she was a child. While she was a child. She Lived in Paris. As she was a child. as 有“一边…一边”的意思 He sang as he walked. “when” When the clock struck twelve, all the lights went out. I was sleeping when she came in. 动补 When we arrived at the station, the train had left. “while ” 主、从句动作或状态同时发生。用 while 引导的从句用延续 性动词，常表示较长的时间或一个过程。 While we were having supper, all the lights went out. Please keep quiet while others are studying. While I was writing letters last night, he was watching TV. when, while 并列连问。 when和 while 都可用作并列连问，连接并列分 句。 When表示“就在……的时候” , while 意反而，可是，表示转折。 精品文档 欢迎来主页下载 精品文档 One evening Beethoven was walking in a street, when he suddenly stopped outside a little house. 并列连词引导并列句，意思是就在那时。 （三）、主句是一般将来时，时间状语从句用一般现在时表将来，主句 是过去将来时， 从句用一般过去时表示过去将来时， 主句是一般过去时， 从句用一般过去时。 1. I' ll call you when I get there. 2. They said they would leave when they got the new. 3. They left as soon as they got the new. Whenever 无论什么时候，随时 1. Whenever someone throws in some rubbish, the truck produces a piece of music. 每当有人扔进一些垃圾时，它（汽车）就放一段音乐。 2. Whenever we' re in trouble, they will help us. 3. I go to the theatre, whenever I am free. 4. Come and see me whenever you want to. 你随时来看我。 till 和 until( 表示“直到……” ) 句首多用 until 1、在肯定句中表示“直到……为止”，主句谓语动词要用延续性动词。 I was waiting until/till he arrived. 2、在否定句中表示“直到……才”主句谓语动词常用终止性动词，