一轮复习之状语从句.pptVIP

一轮复习之状语从句 高考考点 最常考得内容 时间状语从句 以“when / while / until / before 最多 条件状从 if 的虚拟及真实条件 unless / once in case 让步状语 状语从句时态 状语从句的省略 （两个条件） 一个关联词可以引导不同状语从句，意义不同 when / while / as / since / so 关联词的选用 （注意与定语从句的区别） 如何辨别状从定从并列句 引导词分别称作“ 从属连词 关系代词/副词 并列连词 以when 为例 When the film ended ,the people went back. I still remember the day when I first came to Beijing. We were about to go out when the telephone rang. 用since/ before/ when/ that 填空 It was 3 years ago ____ he left. It was 3 o’clock ____ he left. It was 3 years ____ he left. It’s / has been 3 years ____ he left. 注意even if even though的区别 whether …or / while 都可引导让步，通常位于句首 （whether to do ) no matter 后一定要加特殊疑问词 原因状语 条件状语记熟连词，注意只有if 有虚拟 方式状语 注意as if / as though 好像+虚拟 as if 的省略 如 as if to do 好像要去做…… as if doing 好像正在做…… 地点状语 注意where 和引导定从的区别 * * As /when/While I was walking down the street I noticed a police car in front of the building. 1)as ---但它着重强调主句与从句的动作或事情同时 或几乎同时发生。 The runners started as the gun went off. She sang as she worked. As spring warms the earth, all trees turn green. as 表随着 as the time goes on as 引导原因/ 让步状从 及定语从句 2)when (at or during the time that )既可以 表示在某一点的时候，又可表示在某一段 时间内,主句与从句的动作或事情可以同时 发生也可以先后发生。 It was raining when we arrived.(指时间点) 做并列连词 ，有四种句型 I was about to go out when it began to rain when it comes to 表原因= since/ considering that Why did you ask the teacher when you had known the answer? while意思是“当……的时候”或“在某一段时间里”。从句中的动词一般要用延续性动词。 Strike while the iron is hot. 这里的while意思是“趁……”) 并列连词， 强调对比 Some people like coffee, while others like tea. 引导让步状语， 尽管 而，却 1.____the days went on, the weather got worse. A.With B.When C.While D.As 2.Why do you want a new a job____ you have got such a good one already. A.when B.which C.that D.where 3.We were playing in the garden ___ it began to rain.