Question

这句话错在哪里？请说明原因

As is known that he's gone aboard.
但是这个题目出现在了定语从句的单元?这是怎么回事?
请解释这怎么是定语从句

Answer 1

as后面应该加一个主语,是谁知道他已经出国了,IS KNOWN是被动语态,就是说主语并不重要在句子中.但是实际上是重要的,所以应该只应一般过去时,而不是被动语态.

Answer 2

As is known that he's gone aboard.

如果你想表述：众所周知，他已经登机了。
应该如下：As we (you) know, he’s gone aboard.
或者是：It is known that he’s gone aboard.

此句子错在：
如果人为主语的话，就不应该用known这样的过去分词。
如果想使用known这样的过去分词，这里应该使用代词等作为主语。

希望这些解释对你有帮助！

Answer 3

应该是：It is known that he has gone aboard.

It是形式主语，后面的是主语从语．As不能做形式主语．

如果用As可以这么说：
As we all know that he has gone aboard.

Answer 4

that he's gone aboard 是误用了同位语从句。

应改为

As is known , he's gone aboard.

这是两个简单句。

Answer 5

As is known , he's gone aboard
这样才是非限制性定语从句
上面不是定语从句！