2022届高三英语一轮复习状语从句课件

状语从句 The Adverbial Clause 时间状语从句 地点状语从句 原因状语从句 目的状语从句 结果状语从句 比较状语从句 条件状语从句 方式状语从句 让步状语从句 状语从句分为： 1）由when引导，有时译为“突然”，“这时”。如: I was walking along the street when suddenly someone patted me on the shoulder from behind. Henry is in charge of the office when Mr.Smith is away. 时 间 状 语 从 句 2）由while、as 引导。 while指“在某一段时间里”，“在…期间”，while引导的动作必须是持续性的。 as引导持续性动作，强调主句和从句的动作同时发生，从句常译作“一边…一边…”。如： While he was walking in the street, he met Tim. (While ) walking in the street， he met Tim. I like tea while she likes coffee. He sang as he worked. 3）由before、after 引导。 before 译为“在…之前”， after 译为“在…之后”。 如： Be a pupil before you become a teacher. He arrived after the game (had) started. 4）由till、until 引导。 till 表示主句动词是持续性动作，常用肯定式，表示“直到…为止”。 until 表示主句动词常为瞬间动作，常用否定式，表示“直到…才”“在…以前不”, 从句放在句首表示强调。如： We waited till (until) he came back. She didn’t stop studying until eleven o’clock. It is not until his mother comes home that he goes to bed. 5）由since, as soon as 引导。 从句在主句之前时一般用逗号与主句分开，如果从句在主句之后则不必用标点符号。 如： It is (has been) two years since he came here. As soon as she got home, she began to cook. On getting home, she began to cook. 7）由every time, by the time, the moment 和immediately引导。 在时间状语从句中，不能用将来时或过去将来时，而要用现在时代替将来时。 Every time I travel by boat, I get seasick. Immediately(=As soon as) he climbed to the top of the tree, he found the enemy soldiers had arrived. The moment she heard the news, she burst into tears. By the time he comes, we will already have left. Exercises: 1.They walked out of the room _________the meeting was over. 2. ____________ he arrived, the train had already gone. 3.Take the medicine _______you go to bed. as soon as By the time before 4.I knew nothing about it _______he told me. 5.It is more than five years _____we started to learn English. 6._____ he talked on, he got more and more excited. 7.We should strike _______the iron is ho