必威体育精装版版外研版九年级上册英语课件M2U3.ppt

时间状语从句 时间状语从句： 引导时间状语从句的连词有： when, while, as, the moment, before, after, till, until, since, as soon as 等。 请注意 when, while, as 的区别 When ---当……时候, 通常指某一特定的时间点，主句与从句的动作同时发生。 When I opened the window, I saw him come up. When I have time , I will go to see you. When I came home, I met an old schoolmate of mine. He said he would tell her about it when he saw her. *注意：在时间状语从句中，主从句都是将来的动作或状态时，习惯上主句用将来时，从句用一般现在时。 When --- 正在……的时候，突然…。通常主句是进行时或 be about to 时，在翻译的时候，when 可以译成没想到或突然。 I was walking along the street , when I met him. I was about to fall asleep when my sister came in. One evening, little Hans was sitting near the fire when he heard a loud knock at the door. When 当从句是进行时，主句是一般时，往往表示不满。 Someone knocked at the door when I was having breakfast. When I was leaving the house, the postman arrived. When the children had gone to bed, she began to prepare her lessons. When=after While ---在……期间，往往指一段时间。 While we were in America, we saw him twice. While we were talking, he came in. Strike while the iron is hot. While ---表示一种不满情绪，意思是这边在干某种重要的事，而另一边在享受等。 We are cleaning the classroom while they are playing the football. The soldier faces the powder while the beauty powder the face. While I am washing the floor, you can be cleaning the windows. As --- 一边……一边, 随着 She was doing her homework as she was listening to the music. As she grew older, she became more beautiful. As --- 当……时，指一个动作紧接着一个动作发生，从句通常用进行时。 As I was going out, it began to rain. I saw Mary as she was going on the bus. As he was eating his breakfast, he heard someone knock at the door. Someone patted me on the shoulder as I was standing before the shop window. The moment --- 一……就…… =as soon as , immediately, ---Did you remember to give Mary the money you owed her? ---Yes, I gave her the moment I saw her. Not… until --- 直到……才 He didn’t leave the office until he finished the work. =He left the office when he finished the work. Not …until 可以和 when 互换 Before --- 在……之前 The passengers should arrive at the