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 ...
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 the ...
It seems outrageous (可耻的) that care homes — whose purpose is to ensure the elderly people’s welfare (福利) — are able to deny them something which has proven clinical benefits for their health.1. Who is Toby according to the passage? A.Mrs. Reid’s friend. B.Mrs. Reid’s son...
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。
(5)has proved/proven.考查时态.so far和现在完成时态连用,主语为no one,故填has proved/proven.(6)universal.考查形容词,作定语修饰名词,所以用形容词,故填universal.(7)broadly.考查副词.修饰动词,所以用副词,broadly speaking广义地说,故填broadly.(8)which.考查非限制性定语从句.句意为:语言应该是一种独特...
Laughter 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 the past.More and...
theForbiddenCityhasprovedwrongmanypeople?sideasaboutantiquerestorers,allowingthem 9 (realize)thattheyarenotold,dullprofessors,butpeoplein 10 (they)40s,30sand even20swhocanbequitepleasingtotheeye. Thedocumentaryhasevenmadesomeyoungpeopleaskthequestion,“Isittoolatetochange myjob?” 1. 2. 3. 4. 5. ...