"当......时候"

　　I saw him as he got off the train.

　　（2）go by = go on （指时间）过去，流逝；go by还有"遵照，依照"之意

　　考点例题:

　　---I'm going to the post office. ---____ you are there, can you buy me some stamps?

　　A. As B. While C. Because D. If

　　--- Child ______ he is, he knows a lot.

　　A. when B. while C. as D. because

【模拟试题】

（一）根据句子意思写出括号内所给单词的恰当形式。

　1. I keep many ___________（person） letters in this box and my office ones in that one.

　2. If you want to sell your piano, put an _______（advertise） in the newspaper.

　3. "How ____________（fool）it is of you to do such a thing!" Mother said to the boy.

　4. During the ________（compete）, they exchanged experience with players from other countries.

　5. In my opinion, there is no _______（relate） between the two things.

　6. We had no ______ （choose） but to wait for this return.

　7. Computers have brought about a great __________（revolute） in people's life.

　8. In the past 20 years, my hometown has ________（total） changed.

（二）选择合适的单词或短语并用其适当形式填空。

　1. get used to; used to

　　a. I ________ enjoy gardening, but I don't have enough time now.

　　b. It took me several days to ______ living in this area.

　2. take part in ; attend ; join ; join in

　　a. About 400 students _________ the protest last year.

　　b. Born in Guangdong, he _____ high school in Jiansu.

　　c. You can enjoy a sport without ______ a club or belonging to a team.

　3. as well as; as well; also ; too; either

　　a. We ________ to see the film.

　　b. I like walking, and I like watching TV , _______.

　　c. Why don't you come along _________?

　　d. He didn't get the news, _________.

　　e. She _______ her parents is leaving for the First Island.

（三）根据括号内所给的提示翻译下列句子。

　1. 当你离开房间的时候，请一定把门锁上。（make sure that ）

　2. 说实话，我不习惯你那样对待我。（be used to）

　3. 你学习越刻苦，你取得的进步就会越大。（比较级）

　4. 鲁迅不仅是一位伟大的作家而且是一位伟大的思想家。（not only...but also...）

　5. 她对自己能在这次英语竞赛中获得一等奖充满信心。（feel confident in doing ）

6. 随着时间的推移，和许多年轻人一样，他也开始喜欢上流行音乐。（go by, in common with）