内容正文:
Period Ⅱ Learning About Language
单元语法:过去完成时和过去完成时的被动语态
授课提示:对应学生用书第72页
[语法体会]
[生活中的语法]
[学习中的语法]
①Prior to coming to China,my only experience with Chinese cooking was in America,with Chinese food that had been changed to suit American tastes.
②When my family and I had just arrived in China,we went looking for a good place to eat in Beijing.
③A Sichuan restaurant had been recommended to us by a friend,and finally,we found it.
④Tired,hungry,and not knowing a word of Chinese,we had no idea how to order,so the chef just began filling our table with the best food we had ever eaten.
[我的发现]
(1)句②④是过去完成时的主动语态。
(2)句①③是过去完成时的被动语态。
[语法图解]
[知识精要]
过去完成时
一、概念
过去完成时的基本用法与现在完成时相似,但不同的是现在完成时的动作须在现在以前完成,过去完成时的动作须在过去某一时间以前完成,也就是说动作发生在“过去的过去”。
二、构成
had+动词的过去分词
I abandoned the map because I had learned how to get home.我丢掉了地图,因为我已经学会了如何回家。
三、基本用法
1.表示过去的过去
表示在过去的某一时间或某一动作之前完成的动作或存在的状态,也就是“过去的过去”。可以用by、before等引导的介词短语或一个时间状语从句,也可以用一个表示过去的动作以及通过上下文来表示。
By nine o'clock last night,we had got 200 pictures from the spaceship.到昨晚9点钟,我们已经收到了200张从宇宙飞船发来的图片。
How long had Mr.Wang taught in the middle school before he came here?来这里之前,王老师已经在中学教了多长时间的书?
[即学即练1]
单句语法填空
①By the end of last month he had worked (work) in Shanghai for twenty years.
②When I got to school,I realized I had left (leave) my bag at home.
③She had worked (work) on the farm for three years before she became a teacher.
2.表示未曾实现的愿望或打算,主要用于hope、want、expect、think、suppose、plan、mean、intend等动词。
I had meant to come,but something happened.我本想来,但有事发生了。
He had intended that he would come to see you himself,but he was too busy.他本来打算亲自来看你,但他太忙了。
[即学即练2]
完成句子
①她说她以前看过那部电影。
She said that she had seen the film before.
②他刚一交上考卷就意识到忘写名字了。
The moment he handed in his exam paper,he realized he had forgotten to write down his name.
③我本来打算去机场接你们,但我太忙了。
I had intended I would go to pick you up at the airport,but I was too busy.
3.用于某些固定句型中
(1)表示“一……就……”的“hardly/scarcely...when”和“no sooner... than...”等句式中,主句常用过去完成时,从句用一般过去时。(hardly、scarcely、no sooner位于句首