Question

如何转换下列so that的同义句？

My sister was so happy that she couldn’t say a word.
My sister was______happy______say a word.

Answer 1

一、so．．．that与too．．．to的转换

二、so．．．that与enough to的转换

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．
The box is so heavy thathe can'tliftit．→The box is too heavy for him to lift．
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．
The box is so light that the child can liftit．→The box is light enough for the child to lift．
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．
The desk is so heavy that I can't moveit．→The desk isn't light enough for me to move．