Unit 2 过去进行时和过去完成时的被动语态讲义 - 牛津译林版高中英语选择性必修第二册.docx

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1、选修二 unit 1 过去进行时和过去完成时的被动语态（一）过去进行时的被动语态1、 构成肯定句：主语+was/were+being+动词的过去分词+其他否定句：主语+was/were not+being+动词的过去分词+其他一般疑问句：Was/Were+主语+being+动词的过去分词+其他？特殊疑问句：疑问词+was/were+主语+being+动词的过去分词+其他？2、 用法1、 表示过去某一时刻正在进行的被动动作，即某事正在被做。句中往往含有表示过去的时间状语then,at that moment,at that time,at the time,this time yesterday

2、等。句子没有时间状语时，需要根据上下文判断是否使用过去进行时的被动语态。The flowers was being watered then.At that moment,a party was being hold by bus.2、 表示在过去某一段时间内一直在进行的被动动作。Corn was being harvested all autumn.It was reported that changes were being considered.（二）过去完成时的被动语态一、构成肯定句：主语+had been +动词的过去分词+其他否定句：主语+had not been +动词的过去分词

3、+其他一般疑问句：Had+主语+been+动词的过去分词+其他？特殊疑问句：疑问词+had+主语+been+动词的过去分词+其他？二、用法1、表示在过去某一时间之前已经完成的动作，即某事已经被做。这个过去的时间常用by,before等介词短语或时间状语从句来表示，也可以从一个表示过去的动作或者上下文中得到提示。The forest had been destroyed just before the law was passed.How many English words had been learned by the end of last term?2、 表示从过去某一时间开始，延续到过

4、去另一时间的动作，常与for，since引导的时间状语（从句）连用。The electricity supply had been cut off for ten hours before it was restored.The bridge had been damaged several times by the enemy before it was finally built.3、 在条件状语从句中，表示与过去事实相反的假设时，从句要用过去完成时。If you had helped me,I would have got a high score.强化练习1、 He hurried h

5、ome,never once looking back to see if he _(follow).2、 If the new safety system_(put) to use,the accident would never have happened.3、 Ray and her husband Moth became homeless due to their wrong investment.Their savings _(use)up to pay lawyers fees.4、 It _(know) for a long time that Yellowstone was v

6、olcanic in naturethats what accounted for all its hot springs and other steamy features.5、 Jones got the idea after he had talked with an elderly lady who _(cheat) of her money.6、 Looking out to the sea carefully,he saw a couple of kids in a rowboat _(pull)out to sea.7、 I had a strong desire to reac

7、h in and play with the toy,but _(hold)back thankfully by the shop widow.8、 Hearing that he _(deny)by his dream college,Tom was numb with shock.9、 In the 1950s in the USA,most families had just one phone at home,and wireless phones_(invent)yet.10、 Did you visit the museum during your trip to Shanghai?No.Parts of it _(repair).