prove无被动?英语求助~
来源:百度知道 编辑:UC知道 时间:2024/09/21 10:47:02
it has been proven again and again that frequent advertising increases product sales.
是否有误?如无误怎么解释呢?
请高人指教!!
prove作为系动词时(相当于seems啊什么的),用主动表被动。
如果prove作实意动词用时用作被动,一般只可能是用作sth is proved。就是被证明了。但是如果是被证明为,或证明是,就要用主动。sth proves (to be) right.
不用被动的 ,但It has been proved again and again that..在很多桌面上有固定的意思,即
已反复证明,可能被认同作固定用法了 ,你最好是和老师讨论下
1 单词prove的用法
“prove” 用法
prove是个常用动词,也是一个多义动词.由于它的用法比较复杂,现归纳如下
一、prove作"证明;证实"解时,用法如下:
1.prove+名词/代词
He has proved his courage in the battle.他已在作战中证明了他的勇气.
This further proved the strength of our economy.这进一步证明了我们的经济实力.
Can you prove that?你能证实那一点吗?
2.prove+直接宾语(sth.)+to+间接宾语(sb.)
The difficulty was how he could prove his ideas to other scientists.困难在于他怎样向其他科学家证实他的想法.
Can you prove your theory to us?你能向我们证实你的理论吗?
3.prove+宾语+宾语补足语
(1)形容词作宾语补足语
They proved themselves wise and brave.他们证实自己机智、勇敢.
Facts have proved these worries g