新版八年级下册过去进行时讲解及习题(有讲解附练习).pdf

过去进行时 一． 概念:过去进行时主要表示过去某个时刻或某一阶段正在进行的动作，常和表示过去的时间状语 then，at that time/ moment， yesterday,at nine，last night 等连用或者与 when， while, as 引导的过去时间状语连用但在不少情况下，没有表示时间的状语，这时需要通过上下文来表示 We were watching TV from seven to nine last night. What was he researching all day last Sunday? 二．过去进行时的主要用法是描述一件事发生的背景;一个长动作发生的时候，另一个短动作发生(长动作用过去进行时，短动作用一般过去时） 也可以表示两个动作同时发生，此时均用过去进行时 When I saw him he was cleaning his room. While he was waiting for the bus ， he was reading a newspaper He was cleaning his car while I was cooking. 三．When/ While“当……的时候”的区别 ①when 既指时间点，也可指段时间，while 只指段时间，因此 when 引导的时间状语从句中的动词可以是短暂性动词，也可以是延续性动词，而 while 从句中的动词必须是延续性动词. ②when 说明从句的动作和主句的动作可以是同时，也可以是先后发生;while 则强调主从句动作同时发生. They were singing while we were dancing. ③when 和 while 还可作并列连词.when 表示“在那时"；while 表示“而，却”，表对照关系。

如: a. The children were playing when they heard the sound of a motor bike. b. He is strong while his brother is weak 典型例题 1） Mary ___ a dress when she cut her finger. A. made B. is making C was making D. makes 2) As she ___ the newspaper， Granny ___ asleepread； was falling B. was reading； fell C was reading； was falling D. read；fell 四、 通常不能用于过去进行时的动词主要有:agree, be， believe, belong， care, forget， hate， have(拥有), hear, know, like, love, mean， mind, notice， own, remember， seem, suppose, understand, want， wish 等。

例如： 误：I was knowing the answer 正：I knew the answer  误:I wasn‘t understanding him. 正：I didn‘t understand him. 相关习题 I用所给词的适当形式填空： 1 While we __________ （wait) for the bus， a girl __________ （run) up to us 2. I __________ (telephone） a friend when Bob __________ （come) in Jim __________ (jump) on the bus as it __________ （move) away. 4 We __________ (test） the new machine when the electricity __________ （go） off. 5. She __________ （not want） to stay in bed while the others ________________ （all, work) in the fields。

II.单项选择. 1. I ______ a meal when you _____ me cooked， were ringing B. was cooking, rang C was cooking, were ringing D cooked, rang 2 He said he _____ to draw a plane on the blackboard at that time tries B tried C. was trying D will try 3. While she ______ TV, she ______ a sound outside the room. A was watching， was hearing B. watched， was hearing C watched， heard D was watching, heard 4. They _____ a football game from 7 to 9 last night. A。

were watching B watch C watched D are watching 5 What book ____ you ______ when I ____ you at four yesterday afternoon? A did， read， was seeing B. did, read， saw C. were, reading， saw D were, reading， was seeing 。