问题补充:
Li Na is famous all the tennis fans in China know her.
A. too; to
B. enough ; to
C. as; as
D. so; that
答案:
A. too; to
B. enough ; to
C. as; as
(答案→)D. so; that
解析: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 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 go to work.→The man isn 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 walk slowly enough for us to keep up with him.→Tom walked too fast for us to keep up with him.
故选D