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师梦圆初中英语教材同步人教版九年级全一册Section A Grammar focus 4a—4c下载详情

九年级全一册(2014年3月第1版)《Section A Grammar focus 4a—4c》集体备课PPT课件下载-抚顺市优质课

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情感目标:

能运用所掌握的语法,句型和词汇进行交流。

Finish the task

1. 过去完成时的构成:_____+___________

2. 过去完成时表示:

__________________________________

__________________________________

3. 过去完成时常与______________________等引导的时间状语连用。

had

过去分词

when, before, by the time

过去某一时刻或动作之前已经发生或完成的动作。

When I got to school, I realized that I had left my backpack at home.

By the time I got back to school, the bell had rung.

Before I got to the bus stop, the bus had already left.

I was about to go up to my office when I decided to get a coffee first.

As I was waiting in line with the other office workers, I heard a loud sound.

◆ When I got to school, I realized that I had left my backpack at home.

◆ By the time I got back to school, the bell had rung.

◆ Before I got to the bus stop, the bus had already left.

由when, by the time, before等引导时间状语从句时,若描述发生在过去的事,主句常用过去完成时(had + 过去分词)表示动作发生在过去的过去。

◆ I was about to go up to my office

when I decided to get a coffee first.

◆ As I was waiting in line with the

other office workers, I heard a loud

sound.

be about to do, be doing等表示即将或正在做某事时,常用when引导从句表示突然发生的动作。

4a

Make sentences using by the time or before.

1. Tim went into the bathroom. Mary got up.

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