knock off 和knock over的用法一道选择题里同时有knock off 和knock over,整句话的意思中是撞倒的意思,那应该选哪一个.
问题描述：
knock off 和knock over的用法
一道选择题里同时有knock off 和knock over,整句话的意思中是撞倒的意思,那应该选哪一个.
答
knock off:
打翻;撞倒
撞倒;打掉
The little girl knocked the glass off by accident. 小女孩不小心碰落了玻璃杯。
减去
They knocked off five dollars from the price. 他们把价格降低了五美元。
停止;歇工
Let's knock off now. 咱们现在歇一会儿吧。
相关词组
打翻;撞倒
He knocked a glass over. 他把玻璃杯打翻了。
使惊奇
She was knocked over by the news. 她被那消息惊呆了。
消除
We have knocked over every difficulty. 我们已排除种种困
答
当knock off和knock over同时在表示“撞倒”意思的时候,knock over一般就是指撞倒（+ed被动）,比如说A boy was knocked over by a passing car but was fortunately unhurt.而knock off则指从某个地方（被）撞倒,如A boy was knocked off his bike by a passing car but was fortunately unhurt.你是不是的做区统练上的题?