·来热身吧·
1. 做家务
2. except for
3. 上气不接下气
4. make preparations
5. 保安人员
6. as soon as
7. 闹钟
8. go off
9. 突然；猛地
10. by the time

1. do chores
2. 除……之外
3. out of breath
4. 作准备
5. security guard
6. 一……就……
7. alarm clock
8. (警报器等)突然发出巨响
9. all of a sudden
10. 到……的时候

一、选词填空
1. It's difficult to (breath / breathe) in the thick fog, so we'd better wear masks when going out.
2. The river (rose / raised) rapidly after the storm, so the government warned people to stay away from the banks.
3. You must stay indoors during the (thunder / thunderstorm) —lightning can be very dangerous.
4. We should put on masks when a sandstorm (come / comes).
5. When an earthquake (happens / happened), don't take the lift, take the stairs instead.

1. breathe
2. rose
3. thunderstorm
4. comes
5. happens