knock的用法

    knock的基本意思是用手、拳等硬物“敲打”,指出声地、连续地猛击。可用作及物动词,可接名词或代词宾语,也可接以形容词充当补足语的复合宾语。

    一.knock的基本意思是用手、拳等硬物“敲打”,指出声地、连续地猛击。引申可指发出敲击或爆裂的声响。还可表示“批评”“数落”“非难”。

    二.knock可用作及物动词,可接名词或代词宾语,也可接以形容词充当补足语的复合宾语。

    三.knock是瞬间动词,如表示重复动作,须用进行体。

    四.用作名词

    1.爆震声

    What's that knock I can hear from the engine?

    我听到发动机有爆震声是怎么回事啊?

    2.敲；敲打

    I heard a knock at the door.

    我听到了敲门声。

    五.用作动词

    1.敲；打；击

    Knock that nail in, it's sticking out dangerously.

    把那钉子敲进去，它伸出来很危险。

    2.批评

    Tom's supervisor has kept knocking him 3 days for the failure of financial plan.

    由于财务计划失败，汤姆的上司已经数落他三天了。

    3.撞

    The truck was out of control and knocked a dog to death.

    失控的卡车将一只小狗撞死了。

    4.（心）怦怦跳

    After a long marathon running,my heart is knocking rapidly.

    一场长距离马拉松跑下来，我的心脏怦怦直跳。