分词作补足语与 with 复合结构
外研版必修第二册 Unit 6 重点语法。
一、非谓语动词作补足语
常接在感官动词（see, hear, watch, notice, observe）和使役动词（have, make, keep, leave）之后：
see sb doing：看到动作正在进行（主动、进行）。see sth done：看到某事被做完（被动、完成）。keep sb waiting：让某人一直等待。leave the door locked：让门锁着。
二、with 复合结构
公式：with + 宾语 + 宾补
| 宾补形式 | 语义关系 | 示例 |
|---|---|---|
| doing | 宾语与动作是主动或正在进行 | With night falling, they set up the tent. |
| done | 宾语与动作是被动或已完成 | With the task finished, he took a rest. |
| to do | 动作将要发生 | With so many problems to solve, we are busy. |
| adj. / prep. | 状态补充 | With the door open / With a book in hand |