【篇⼀】
knock at
该短语表⽰“敲(门、窗等)”。有时,knock也会⽤作名词,表⽰“敲击”,后⾯也是紧跟介词at。如:
He wondered whether it would be proper to knock at her door. (他不知道敲她的门是否恰当。)
I was preparing for bed when I heard a knock at the door. (我正准备睡觉时听到有⼈敲门。)
【篇⼆】
knock...off
该短语表⽰“把...撞倒”,off后⾯⼀般接地点。但knock后⾯也可以接⽐例或数字,表⽰“减少”,此时的⽐例或数字也可以放到off后⾯。如:
I knocked the vase off the table and broke it. (我把花瓶从桌⼦上碰掉下来,摔碎了。)
The shop assistant knocked 10% off the bill. (店员给了10%的优惠)
It cost me 10 but I'll knock off 20% as it's no longer new. (那是我花10英镑买的,因为已经旧了,我会减价20%。)
【篇三】
knock off
与knock...off不同的是,knock off中间⼀般不插⼊其他成分,表⽰“做完某事;下班”。如:
We knock off at 12:30 for lunch. (我们⼗⼆点半时停下⼯作去吃饭。)
I can knock off a poem in five minutes. (我能在五分钟内写⼀⾸诗。)
【篇四】
knock over
该短语表⽰“撞倒;消除”,需要注意的是:宾语是名词的话,可以放在knock和over中间,也可以放到over后⾯;宾语是代词的话,则只能放在中间。如:
Don't knock over the bowl of water. (别把那碗⽔打翻了。)
=Don't knock it over.
The students knocked over every difficulty. (学⽣们克服了每⼀个困难。)
=The students knocked it over.
【篇五】
knock out
该短语表⽰“击倒;打昏”。需要注意的是:宾语是名词的话,可以放在knock和over中间,也可以放到over后⾯;宾语是代词的话,则只能放在中间。如:
The enemy charged up the mountain, attempting to knock out our forces. (敌⼈向⼭上冲锋,企图把我们的兵⼒摧毁掉。)
In the fight, the thief knocked the policeman out. (在搏⽃中,⼩偷把警察打昏了。)
除了以上教材中出现的短语以外,下⾯这些有关knock的短语也较为常⽤:
【篇六】
knock down
该短语表⽰“击倒;撞倒;拆除”。如:
The policemen had to knock down the door to get in. (警察为了进去得撞倒门。)
Knock down the machine before shipping. (在装运前把机器拆卸开来。)
【篇七】
knock up
该短语表⽰“匆忙做完;使...精疲⼒尽”。如:
Can you knock up a meal for us now? (你能为我们赶快做顿饭吗?)
I was completely knocked up from overwork. (由于⼯作过度,我完全累垮了。)
【篇⼋】
knock it off
该短语经常⽤作提⽰语,表⽰“别再讲下去”。如:
Knock it off, will you? I can't make a phone call with all this noise going on. (不要讲话了,好吗?这样闹我简直⽆法打电话了。)
Will you kids knock it off? I can't study. (够了,⼩⿁们,停下来。我⽆法专⼼念书。)
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