原句是一般现在时,故应变为现在完成时的被动语态,即“has/have been+过去分词”。主语是“Taking weight loss medicine”,故用has。转换为被动语态后动词用原形,即“do”。“对...有害”是“do harm to”。故答案为has been proven to do harm to。
It is proven that good night's sleep is important for numerous health benefits. But what is the best sleep position to get a good night's rest? The best position is to sleep on your back, according to a he w study. It prevents neck and back pain, and minimizes wrinkles. Sleeping on...
需注意在口语交流中宜替换为'It's been proven that...'或'Studies show that...'等更自然的表达。 四、关联句式对比 形容词引导句式:'It is important that...'(需接虚拟语气should do)与'It is proved that...'(陈述事实)存在本质差异 近义被动结构: 'It has ...
Semantically, it functions to convey the meaning that something has been demonstrated or proven to be true. For instance, 'It is proved that hard work leads to success.' This clearly shows that through evidence or research, it has been established that putting in effort results in achieving ...
与“it is thought that”(带有一定主观猜测)或“it is proven that”(强调已被证实)不同,“it is believed that”处于两者之间:既非完全主观的个人看法,也非经过严格验证的结论。它可能基于群体经验、文化传统或部分研究支持,但尚未达到科学共识的程度。例如关于民俗疗...
最终答案:It's proven that we can do anything if we never give up. 1. 句子结构: 这是一个it作形式主语的句子,真正的主语是后面的that从句。 2. It is/was + 形容词/名词/过去分词 + that从句:这是一个固定句型,表示“...是...的”。 3. 语境: 这句话的意思是“如果我们永不放弃,我们就...
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...结果一 题目 prove为什么有时是用主动 有时用被动 比如It has been proven that.her acti...
没有,有的是it was proved that it was proved that it was right 它被证明是正确的.一般的PROVE是没有被动的 It
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。prove...
Professor: Ok. A fair question.But if I may rephrase it slightly, what you really wanna know is how long was it before water could exist in liquid form?Let's just say that by the time earth's atmosphere had stabilized, and this was not long after the creation of the moon, say, 4.4...