is known to us all is that the 2012 Olympic Games will take place in London.
题型：不详难度：来源：
| is known to us all is that the 2012 Olympic Games will take place in London. |
答案
| B |
解析
试题分析：通过分析句子结构，可知这个句子中包含一个主语从句和一个表语从句。引导词在主语从句中作主语，且表示什么的含义，故用What。
点评：在句子中起主语作用的从句叫做主语从句。解答这类题，首先要确定从句是什么从句，然后依据相应的语法规则答题。主语从句中引导词的确定，要看它在主语从句中作什么成分，有没有什么实际意义。 |
举一反三
| It remains a question_______we can finish the project in such a short time. |
| thousands of families from the earthquake-stricken area have moved into new houses is exciting news. |
It doesn’t matter ________ you take it seriously, for _______ matters is that he can realize it.| A．whether; that | B．that; what | C．whether; what | D．that; that |
|
________ is surprising to us is that Tom, for _______ English was once boring, can speak English fluently as though he were a native speaker.| A．As; whom | B．What; whose | C．It; whose | D．What; whom |
|
some people regard as a drawback is seen as a plus by many others.| A．Whether | B．What | C．That | D．How |
|
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