prove无被动？英语求助~

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 groundless.事实证明,这些忧虑是没有理由的.

(2)名词作宾语补足语

She proved herself an able secretary.她证实自己是个能干的秘书.

He has proved himself a success.他已证明了自己是个成功者.

(3)动词不定式作宾语补足语

All this proved him to be an honest man.这一切都证明他是一个诚实的人.

The experiment proved his theory to be important to our research.实验证明他的理论对我们的研究是重要的.

4.prove+宾语从句

Galileo proved that the earth and all other planets move around the sun.伽利略证实地球和所有其它的行星都是绕太阳运转的.

But Einstein was able to prove that light coming from the stars was bent as it passed the sun.

然而爱因斯坦却能证明从恒星来的光线当其经过太阳时变弯曲了.

Can you prove where you were on May 10th?你能证实五月十日你在什么地方吗?

二、prove作"证明是;结果是;事实说明"解时,用作连系动词,可用于以下句型:

1.prove+形容词

The handbook proved most useful.这本手册证明很有用.

The medicine proved satisfactory.结果证明这药疗效令人满意.

2.prove+名词

She proved a very strict teacher.结果证明她是一位非常严格的老师.

His efforts, however, proved a failure.但他的努力结果都失败了.

3.prove+介词短语或副词

Perhaps this book will prove of some use to you in your studies.也许这本书会对你的研究有用处.

The power station was completed and proved up to standard.这座发电站建成了,证明质量符合标准.

4.prove+动词不定式

As time went on, Einstein's theory proved to be correct.随着时间的推移,爱因斯坦的理论证明是正确的.

She may prove to be the most suitable person for the job.结果她可能是最适合干这项工作的人.

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.

动词过去式，过去分词，过去分词都可以是：proved,proven.完全可以啊。老师说的不对。绝对不对！而且这句话是被动语态。必须用PROVEN或PROVED。
频繁的广告提升产品销量已经被一次次的被证实。
必须正确。
希望能帮到你。

某事 用it 来代替的时候是可以用被动语态的
如果主语 用 the rumor 或者 the news 之类的时候 就可以直接用它的主动表示被动

上面那句英文是对的。你的老师和参考书的说法应该有问题。

再给个例句：The new treatment is proved to be effective.
翻译：新的治疗方式被证明有效。