so......that的用法和辨析

1、1. so....that的用法：

   意为“如此......以至于.....”

   so用来修饰形容词或副词。

   eg: The bag is so heavy that I can't carry it.

     （这个袋子太重了，我提不动）

2、2.同义替换：

 so.....that可以和too.....to.....或者enough to do sth替换。

 eg：The car is so expensive that I can't afford it.

       =The car is too expensive for me to buy.

         (这辆车太贵了，我负担不起。)

  eg: He is so old that he can take care of himself.

      =He is old enough to take care of himself.

        (他年龄足够大了，可以照顾自己了。)

       需要注意的是：that后面加句子，to 后面加动词原形。

3、3.so....that, such.....that， so that的辨析

 (1)so....that: 意为“如此......以至于....."; so用来修饰形容词或副词。

 (2)such.....that: 意为“如此......以至于.....”such用来修饰名词。

 (3)so  that: 意为“为的是，以便于”,用来引导目的状语从句。

 eg：She was so angry that she couldn't speak.

        (她太生气了，以至于说不出来话了。)

        It was such a boring speech that i feel asleep.

      （那是一个如此无聊的演讲，以至于我都睡着了。）

        I read more books so that i can catch up with my classmates.

        (我读更多的书，以便能赶上我的同学。)

4、4.注意：

如果名词前有much，many,few, little等词语修饰时，要用so而不是such.

eg:   She has changed so much that i can  hardly recognize her.

       ( 她变化太大了，以至于我几乎认不出来她。）