新概念二册L14.ppt

过去完成时 1） 时间状语从句 主句 after/as soon as/when +过去完成 一般过去 After the class_________, the little boy _______at the classroom. 开始上课以后，这个男孩才到教室。 As soon as I _________him, he _____goodbye to me and went away. 我一看见他，他就向我说再见然后走开了。 When he ____________lunch, he _____. 他吃完了午饭就离开了。 had begun arrived had seen said had finished left 2） 时间状语从句 主句 before /until +一般过去时 过去完成时 He _________me before he _____ to see me. 他来看我之前给我打过电话 I __________ at the bus station for an hour until my girlfriend ______. 在我女朋友来之前，我已经在车站等了她一个小时了。 came had called came had waited 【Exercise】C 用括号中的词将以下句子连在一起 (after) She wrote the letter. She went to the post office. (after) He had dinner. He went to the cinema. After she had written the letter, she went to the post office. After he had had dinner, he went to the cinema. ( when) I fastened my seat belt. The plane took off. We did not disturb him,(until) He finished work. When I had fastened my seat belt, the plane took off. We had not disturbed him until he finished work. (as soon as) He left the room. I turned on the radio. He was very ill. (before) He died. As soon as he had left the room, I turned on the radio. He had been very ill before he died. 1. The moment he had said this, he _________(regret) it. 2. It ___________ (begin) to rain before she took a taxi. 3. When all the guests had left, Derek ___________(arrive). 4. I ____________that she was a famous actress until you _______me.(know, tell) 5. The boys _____the zoo. They _____________ wild animals before.(love, not see) D. 用正确的形式填空 regretted had begun arrived hadn’t known told loved had never seen 1.由when, while, as, 引导的时间状语从句。 when引导的从句的谓语动词可以是延续性的动词，又可以是瞬时动词。并且when有时表示“就在那时”。 当她进来时我正在吃饭。 When she came in, I was having lunch. 时间状语从句 用表示时间的连词连接一个句子作状语，这样的主从复合句就是时间状语从句。 While引导的从句的谓语动作必须是延续性的，并强调主句和从句的动作同时发生（或者相对应）。并且while有时还可以表示对比。 当她看电视的时候我正在写信。 While she was watching TV, I was writing a letter. As表示“一边……一边”，a