Question

 Li Na is       famous        all the tennis fans in China know her.　

A. too; to   B. enough ; to  C. as; as   D. so; that

Answer

D

【解析】

试题分析：句意：李娜是如此著名以致于所有在中国的网球迷都认识她。 

so．．．that，too．．．to和enough to是初中英语教材中的重要结构。在一定条件下它们可以相互转换。

一、so．．．that与too．．．to的转换

当that引导的从句为否定式时，从句主语与主语的主语相同时，so．．．that可转换为too．．．to结构；若从句主语与主句的主语不相同时，so．．．that可转换为too．．．for sb．to结构。例如： He is so young that he can't go to school．→ He is too young to go to school．

二、so．．．that与enough to的转换

1．当that引导的从句为肯定式时，若从句主语与主句主语相同时，so．．．that可转换为 enough to结构；若从句主语与主句主语不相同时，so．．．that可转换为enough for sb．to结构。例如：

Tom is so old that he can go to school．→Tom is old enough to go to school．

2．当that引导的从句为否定式时，若从句主语与主句主语相同时，so．．．that可转换为enough to的否定结构；若从句主语与主句主语不相同时，so．．．that可转换为 enough for sb．to的否定结构。注意：转换后的形容词（副词）要用其相应的反义词。例如：

The man is so old that he can't go to work．→The man isn't young enough to go to work．

三、enough to的句式为否定式时，enough to可以转换为too．．．to结构。但转换后的too．．．to结构中的形容词（副词）要用其相应的反义词。例如：

He is not old enough to do the job．→He is too young to do the job．

Tom didn't walk slowly enough for us to keep up with him．→Tom walked too fast for us to keep up with him．

故选D

考点：考查固定短语用法。