prove是没有被动的，所以不能用 it has been proven 应该是 it has proven.
不过，用过去分词proven的表达会更多一些：has been proven，表示“被证明、被证实”的状态:Preventative medicine has been proven to be the most effective way of reducing the incidence of fatal childhood diseases.
结果1 题目 1.许多研究人员已经证明,每天睡七个小时的人生活更快乐、更健康。 (prove)It has been E proved/proven by many researchers that people who sleep 7 hours per day enjoy a happier and healthier life. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
由时间状语 since it opened to the public 可知谓 语动词需用现在完成时态,由句子的主语 Lincoln's home 可知助动词 应该用 has,故填 has proved/has proven。 8.sold查 时态。 句意:1861年林肯当选美国总统后,他们出租了 房子,并卖掉了大部分家具。由并列谓语rented可知此处应该填sell 的过去式sold。 9....
Q: Has proved to be... or Has proven to be...proved or proven? A: i would use proved both are ok to be honest not a huge difference either way 查看更多回答 Q: 1) Has your cold gotten better now?2) How's your cold? 3) How's the cold doing?4) How's your cold doing...
谁说prove不能用被动？ 但我建议你强调动词用法用前者， 而proven多用作形容词
It has been proven that 指某件事被证明是客观真实的。例句：It's been proven that the answer is wrong.事实证明，答案是错误的。此处的It 是形式主语，指代that后面的东西。Her action proves that 指她的行为证明了某件事的真假。此时prove作主动，应该不难理解。
Cold-Hearted YouthLaughter is a great thing.It has been proven to be physically and mentally effective on people(71)___.The reason for this is that people are laughing at the wrong things,particularly the youth.They find humor in things that people wouldn't have generally found funny in th...
B (4)案: has proven/proved 解析:考查主谓一致和动词的时态 结合下文语境和 时间状语Sofar可知,该句应该用现在完成时。 分析 句子结构可知,句子的主语为noone,当不定代词no one作主语时,谓语动词要用第三人称单数形式,故 has proven/proved意:前 ,还没有 证明一种动物或一个物种拥有一种语言 5)答案:is ...
Theory has proven 翻译结果4复制译文编辑译文朗读译文返回顶部 Theory has been proven that 翻译结果5复制译文编辑译文朗读译文返回顶部 The theory already proved 相关内容 a我们都认为乐于助人的人最容易相处 We all thought is glad helps the human the person to be easiest to be together[translate] ...