Question

( )is known to us all that the 2012Olympic Games will be held in london.

A.as B.It C.which D.that

Answer 1

答案：B

解析：“众所周知”常用如下句式表达：

①As we all know，...②As is known to us all，...③It is known to us all that...④What is known to us all is that...。

把这四个记下来，出这样的题目直接套进去就出答案了

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Answer 2

(It )is known to us all that the 2012Olympic Games will be held in london.
众所周知2012奥运会将在伦敦举行。
（这是it 作形式主语。）
相近的句有下面的，要注意区别
(What)is known to us all (is) that the 2012Olympic Games will be held in london.

（这是what引导的主语从句。）

(That) the 2012Olympic Games will be held in london (is) known to us all.
（这是that引导的主语从句。）
(As) is known to us all, the 2012Olympic Games will be held in london.

（这是As引导的非限制性定语从句）

Answer 3

B
众所周知，2012年奥运会将在London举办。It's......that.+从句 。可转换成：
As is known, the 2012 Olympic Games will be held in London.或
The 2012 Olympic Games will be held in London,which/ as is known.
What is known to us all is that the 2012 Olympic Games will be held in London.
(请注意书写格式).
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