5）I opened the cage and set the bird free.

6) A spark set the soods on fire.

(3) vi.（日、月等）下落；下沉

7) It will be cooler when the sun has set.

(4) n. 一套，一组；电器设备

8） I bought a set of LuXun's short stories.

短语： set off 出发,动身 set out 出发，着手

Set about 开始，着手 set up 建立，成立

Set sb. a good example 为某人树立好榜样

4． Hold up

1) raise; keep up举起

2) show as an example 提出（作为榜样）

The teacher always holds up Tom as a model of hard work.

3) to delay 阻滞

The building of the new road has held up by bad weather.

短语：hold back 使固定；阻挡 hold down 压制

Hold to 遵循；坚持 hold together (使团结；连接在一起)

5．Hand over 移交；让与；交给某人照料

1)The captain was unwilling to hand over the command of his ship. 军舰的指挥权

2）The thief was handed over to the policeman.

短语： hand down 传给 hand over 传递