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knock 的相关搭配

2016-05-21来源:和谐英语

knock 的相关搭配

1. 用作动词,表示“敲”,有时及物(后接宾语时不用介词),有时不及物(后接宾语时要用介词),其区别是:

(1) 若表示“敲”的目的是为了引人注意,则它通常是不及物的,此时要跟宾语,须用介词at或on。如:

Someone is knocking at [on] the door. 有人在敲门。

Please knock before entering. 进屋之前请先敲门。

有时接其他介词。如:

His legs knocked against the chair. 他的两条腿撞到了椅子。

(2) 若表示“敲”不是为了引人注意,而是强调有意地敲打或无意地撞击等,则是及物的。如:

The car knocked the old man down. 汽车把老人撞倒。

The driver was knocked unconscious. 司机被撞得失去了知觉。

She knocked her head on [against] the wall. 她把头撞到了墙上。

2. 用作名词时,其后也常接介词 at, on。如:

There was a knock at [on] his door. 有人敲他的门。

There came a knock at [on] the door. 有人敲门。