由于prove可以是及物动词,也可以是不及物动词,由此,其用法比较特殊.而且也可以用被动语态.
看如下的例子:
He has proved his courage in battle.(及)
The method proved (to be) highly effective.(不及)
The theory has not been proved.(及)
It is proved that...
由于prove可以是及物动词,也可以是不及物动词,由此,其用法比较特殊.而且也可以用被动语态.
看如下的例子:
He has proved his courage in battle.(及)
The method proved (to be) highly effective.(不及)
The theory has not been proved.(及)
It is proved that...