高中語法專練：i. as作連詞引導時間狀語從句，表示“當……的時候”

i. as作連詞引導時間狀語從句，表示“當……的時候”

1. 主句的動作與從句的動作交替進行。意為“一邊……一邊”。

“I'll come to pick you up at 10,” he said as he left.

“我十點來接你。”他一邊離開一邊說。

As he walked, he sang and danced.

他邊走邊唱邊跳。

2. 主句的動作發(fā)生在從句的動作進行的過程中。意為“當……時候”。

As he read a magazine, he fell asleep.

當他讀雜志的時候，睡著了。

As I was walking on the street, I met with my old friend.

我在街道走的時候遇見了我的老朋友。

3. 主從句兩個短動作同時發(fā)生，意為“就在這時”。

Just as I closed the door, I remembered the key.

就在我關門的時候，我想起了門鑰匙。

He became quite surprised as he heard the news.

聽到這個消息他很吃驚。

4. 后跟名詞時，表示在名詞表示的時間段中。

As a young man, he was a storekeeper and postmaster.

年輕的時候，他當過店主和郵局局長。

Even as a child, he began to make a living by himself.

甚至還是個孩子的時候，他就開始獨自謀生了。

5. 主句的動作與從句的動作相伴發(fā)生，意為“隨著……”。

We get wiser as we get older.

隨著年齡增長我們更聰明了。

專項練習

1. As I _______ the newspaper, Granny _______ asleep.

A. read; was falling

B. was reading; fell

C. was reading; was falling

D. read; fell

2. Mother was worried because little Alice was ill, especially _______ father was away in France.

A. for

B. as

C. since

D. during

3. _______ I was going out, the telephone rang.

A. Since

B. While

C. As

D. Once

4. I read the letter _______ I walked along the river.

A. since

B. for

C. as

D. when

5. _______ the wealth of the country increases, more and more waste will be produced.

A. As

B. When

C. Since

D. While

6. —I'm going to the post office.

—_______ you're there, can you get me some stamps?

A. As

B. While

C. Because

D. If

7. _______ the day went on, the weather got worse.

A. With

B. Since

C. While

D. As

答案速查　1-5　BBCCA　6—7　BD