3．重点补充：

be on the point of doing sth. 正要做某事

set out to do sth. 着手做某事

set about doing sth. 开始做某事

测试精编：

1. - "The meeting is scheduled to begin at 7 o'clock."

- "But ________ a delay."

A. it will be                         B. there'd be

C. there will be                      D. there is

2. He'll leave for Paris before you ________ next week.

A. will come back                     B. will be back

C. come back                         D. came back

3. Our next meeting ________ on 1st December. liuxuepaper.com