What his discovery is has not been proved.是正确的吗?

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What his discovery is has not been proved.是正确的吗?
What has not been proved is his discovery.
这一句就是主语从句、
那么
What his discovery is has not been proved.
这样的话是正确的么?
我感觉这样似乎也行得通、
正确或错误,并说明原因、
还有就是prove有被动语态么?在网上找的有人说有,有人说没有、蛋疼啊!
谢谢大家咯、~

What has not been proved is his discovery. 还没被证明的是他的发现
What his discovery is has not been proved. 他的发现是什么还没被证明.
两句话都可以, 第一句中的what从句已经不含有“什么”的意思了
两句话中prove都用的被动语态,这完全可以.
但如果prove后面跟了表语,也就是 adj/或n 形容词或名词, 那么就不能用被动了
比如His idea proves (to be) true. 对的
His idea is proven (to be true) 错的
再问： What has not been proved is his discovery. What his discovery is has not been proved. 这两句的翻译好难区分、感觉2句的翻译都是一样的额、还有就是第二句的is和has能一起？
再答：翻译都写好了，两个句子意思本来差不多。第二句is 和has分别作从句和主句的谓语动词，不影响。
再问：那如果遇到这种句子要怎么区别啊？对这种句子翻译有什么方法？很容易就混淆啊、还有就是What his discovery is has not been proved 这一句是主语从句么？不是的话是什么？
再答： what his discovery is 主语从句，他的发现是什么谓语动词has not been proved 翻译先弄清楚句子结构，否则就别翻译了。
再问：这样说的话，2句都是主语从句？
再答：是的

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