上海牛津高一英语上U4 grammar-状语从句.ppt

高考链接 Because of the heavy traffic，it was already time for lunch break ______ she got to her office．（2010 四川） A．since B．that C．when D．until C Unit 4 状语从句的引导词 分 类 连接付词（引导词） 时间状语从句 When, as, while, before, after, until, since, as soon as, hardly…when---, no sooner….than , the moment, by the time, The first time…,Every time… 原因状语从句 Because, since, now (that) , as , seeing…(that) , considering (that), 地点状 语从句 Where, wherever 条件状 语从句 If（假如） , unless, as(so) long as, provided(that) , providing (that) , in case，once 让步状 语从句 While,although, though, as,even if (though), whether..or(not),whatever, whenever, wherever, whoever , whichever, however, no matter what ( when, who, which, how) as （虽然、尽管） 目的状 语从句 So that, in order that, lest（以免、唯恐）, for fear that （以免、唯恐） 结果状语从句 So, so that, so…that, such…that 方式状语从句 As（按照、和---一样）, just as, as if（似乎、好像是）=as though, the way（---的方式） 比较状语从句 As…as, than , not so…as, the more….the more 表示时间的状语从句可由 when, as, while, whenever, after, before, till (until), since, once, as soon as ( 或 the moment ), by the time, no sooner … than, hardly (scarcely) … when, every time 等引导。 future past the show begins. We need another contestant a make-up artist rushed forward. he seated her on the stage After now future before now past before after 1. Einstein almost knocked me down before he saw me. 2. It will be four days before they come back. 3. My father had left for Canada just before the letter arrived. 　 4. After you think it over, please let me know what you decide. 　　 5. After we had finished the work, we went home 　　 　　 before和after的用法比较： now future now past while She sat on the edge… she watched. past future as the audience clapped. “Right” shouted Lester while as when, while, as表“时间”的区别 1. when当 / 在......时(=at the time that)。可表示瞬间、时间段，可与主从句所述动作、事情同时发生，也可有先有后。 It was snowing when we got to the airport. （同时发生） When he got to Shanghai, the ship had already set off. （先后发生）