现在进行时和过去进行时的用法

（3）描述图片中的人物的动作时常用现在进行时，以示生动。如：

Look at the picture．The girl is swimming．

（4）有时句子中可能没有时间状语，但如果表示的是说话时或者现阶段正在进行的动作，就应该用现在进行时。如：

—What's Jim doing？—He is cleaning the roo m．

练习：

一、写出下列动词的现在分词

play______read______sweep stand sit

make______go_____sleep____jump walk clean

wash ski_sing ____ do dance_____come ___ skate___

ride love______put___ live_____swim ____run___eat____ play____ buy _________ like_____write______have_____

二、用所给的动词的正确形式填空：

1. The boy _____________(draw) a picture now.

2. Listen .Some girls ______________(sing) in the classroom.

3. My mother _________________ (cook) some nice food now.

4. What _____ you ______ (do) now?

5. Look, they _______________ (have) an English lesson.

6. They ____________(not ,water) the flowers now.

7. Look, the girls ________________ (dance) in the classroom.8. What is our granddaughter doing? She____(listen) to music.

9. It’s5 o’clock now. We __________(have)supper now

10.______Helen__________(wash )clothes? Yes, she is.

三、句型转换：

1. They are doing housework. (1改一般疑问句并作肯定、否定回答；2改否定句)

2. The students are cleaning the classroom.( 1改一般疑问句并，作肯定、否定回答；2对画线部分提问)

3. I’m playing football in the playground.( 改一般疑问句并作肯定、否定回答；2对划线部分进行提问)

4. Tom is reading books in his study . (1改一般疑问句并作肯定、否定回答；2对划线部分进行提问)

四．根据汉语意思填空:

1. 你要去哪儿啊? Where are you _____?

2. Nick 正在爬攀登架. Nick is _____ (climb) the jungle gym.

3. 他们正在读书. They are _____ books.

4. 爷爷正在吸烟. Grandpa is _____.

5. 我在做作业. I am _____ (do) my homework.

6. 我妈妈正在做饭. My mother is _____.

7. Jerry在喝柠檬果汁. Jerry is _____ lemon juice.

8. 他正在写信. He is _____ a letter.

9. 看! Cindy来了. Look, Cindy is ______.

10. 我们在唱歌. We are _____ now.

五．填入be动词的适当形式

1. He _____ drinking water.

2. The eagle _____ flying in the sky.

3. Children _____ playing in the playground.

4. They are _____ working now.

5. I _____ going to the supermarket.

6. I _____ coming.

7. He _____ walking in the woods now.

9. They watch TV in the evening.

过去进行时的用法与练习

一、用法说明

■表示在过去某一时刻或某一阶段正在发生的动作。如：

What were you doing this time yesterday? 昨天这个时候你在做什么？

During the summer of 1999 she was travelling in Europe. 1999年夏天她在欧洲旅行。

句型：

肯定句：主语+was/were+doing+其它

否定句：主语+was/were+not+doing+其它

一般疑问句及答语：Was/Were+主语+doing+其它

特殊疑问句：特殊疑问词+was/were+主语+doing+其它

注意：

一、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。常用的时间状语this morning，the whole morning，all day yesterday，from nine to ten last evening，when，while。例如：

1.We were watching TV from seven to nine last night.

昨天晚上七点到九点的时候我们在看电视。

2.What was he researching all day last Sunday? 上周日他一整天都在研究什么？

3.My brother fell while he was riding his bicycle and hurt himself.

我哥哥骑自行车的时候从车上摔下来，受伤了。

4.It was raining when they left the station. 他们离开车站的时候天正在下雨。

5.When I got to the top of the mountain, the sun was shining.

当我到达山顶的时候，阳光灿烂。

二、过去进行时可以表示在过去某个时间点发生的事情。时间点可以用介词短语、副词或从句来表示。如：1.What was she doing at nine o'clock yesterday? 昨天晚上九点她在做什么？(介词短语表示时间点) 2.When I saw him he was decorating his room.

当我看见他的时候他正在装饰房间。(when从句表示时间点)

三、在复合句中，如果主要动作和背景动作都是延续的或同时发生的，那么主从句的动词都可用过去进行时。例如：While he was waiting for the bus, he was reading a newspaper.他边等车边看报。(两个动作都是延续的)

He was cleaning his car while I was cooking. 他擦车时我在做饭。(两个动作同时进行)

练习：

一、句型变换

1、I was waiting for a bus at that time.

改为否定句对划线部分提问

2、The boy was playing over there at six yesterday.

改为一般疑问句