【拓展】过去进行时表示过去某个时间正在进行的动作，强调动作进行的过程；而一般过去时只是单纯确认动作完成的事实。如：

I was working in the library from three till five.

我从3点到5点一直在图书馆学习。

I worked in the library from three till five.

我从3点到5点在图书馆学习了。

【即学即练】用括号内动词的正确形式填空。

Mrs. Williams 1. ________ (love) flowers and had a small but beautiful garden.

In the summer, her roses were always the best in her street. One summer afternoon her bell 2. ________ (ring), and when she went to the front door, she saw a small boy outside. He was about seven years old, and 3. ________ (hold) a big bunch of beautiful roses in his hand.

The small boy said he 4. ________ (sell) roses and he asked Mrs. Williams if she wanted any. "They are quite cheap. Five pence for a big bunch. They are fresh. I 5. ________ (pick) them this afternoon." The small boy said.

Mrs. Williams 6. ________ (answer) she picked roses whenever she wanted, and didn't pay anything for them, because she had lots in her garden.

The small boy smiled and told Mrs. Williams that she 7. ________ (have) no roses in her garden. "Because they are here in my hand!"

答案

1. loved 2. rang 3. was holding

4. was selling 5. picked 6. answered

7. had

现在完成时

【归纳】 现在完成时常用于以下两种情况：

1. 表示动作发生在过去某个时间，到现在已经完成，却给现在留下影响或结果。如：

We can't cross the river because the water has risen.