这句话错在哪里？请说明原因

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.

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。

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！

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！

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.

As is known that he has been abroad. 表示状态．我的韩国语，英语学习，休闲网站 HTTP：／／IFCLICK．IK8．COM