1.   so为副词，一般修饰形容词和副词。such为形容词，修饰名词。so fast, such a nice picture。

2.   so也可修饰名词，但必须符合以下语序：so+形容词+a/an+名词。即so后面的名词必须为可数名词单 数形式。so big a dog=such a big dog。如用了复数只能说such big dogs。

3.  与many, much, few, little这四个表示“数量”的词连用只能用so。需要提醒的是，little还可作为“小” 的意思，这个时候仍然用such。I have never seen such little sheep before.

4.   当so…that引导的结果状语从句为肯定句时，可与be…enough to do替换；当为否定句时，可与too…

 to…或be not该形容词的反义词enough to do替换。

          He is so young that he can’t go to school.

 = He is too young to go to school.

 =He is not old enough to go to school.

5.    so that引导目的状语从句表示“为了，以便”，从句中常用can/could/will/should等情态动词。

          They are hurrying so that they won’t miss the train.

          引导结果状语从句时，意思为“因此，结果”。

          He hurt his back, so that he won’t be able to play in the match.

1.       She is so lovely a girl.

2.       He has such a beautiful bike.

3.    She is such a clever girl that everyone likes her.

4.       There are so many people in the park.

5.    This story is so interesting that I want to read it again.

6.     He spoke so quickly that I couldn't follow him.

7.       The box costs so little that I can afford it.

(   ) 1. She was ____ well dressed that she attracted everyone’s attention at the party.  (08常州)

      A. so                         B. quite               C. too                               D. very

(   ) 2. When the fire broke out, many people were so _______ that they ran _______. (08宿迁)

      A. frightening; wild     B. frightened; wild  C. frightened; wildly  D. frightening; wildly

(   ) 3. It was _________ music that I lost myself in it. (08泰州)

      A. such a beautiful      B. so beautiful a    C. so beautiful           D. such beautiful

(   ) 4. We arrived ______ late that there were no seats left. (09苏州)

A. much                     B. too                         C. so                  D. very

(   ) 5. I like the pop star _______ that I never miss his concert. (09南通)

A. very much             B. too much               C. quite much       D. so much

(   ) 6. The music in the supermarket sounded so ______ that I wanted to leave at once. (09常州)

 A. soft                       B. wonderful              C. friendly           D. noisy

(   ) 7. Curing sick people is _______ important _______ doctors must be careful. (09泰州)

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

(   ) 8. The question is _______ that nobody can answer it. (09宿迁)

 A. very hard                B. too difficult            C. strange enough D. so strange

(   ) 9. That film was so _______ that most of the audience kept screaming in fear while watching it last night. (2010镇江

A. exciting             B. frightening              C. boring             D. amazing

(   ) 10. This is _______ difficult problem that few students can work it out. (2010宿迁)

 A. so                          B. so a                      

C. such               D. such a

(   ) 11. The doctors in ORBIS have done _______ an important job _______ the patients are all grateful  to them. (2010徐州)

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

 　1.The boy is_____________ young that he can't go to school.

　　2.He told us_____________ a funny story that we all laughed.

　　3.He has______________ few books to read that he has to borrow some books from the library.

　　4.It is ___________a tall building that I can't see its top.

　　5.The girls had_____________ high a fever that she nearly died last week.

　　6.They are ___________clever children that all the teachers love them.

　　7.It is ___________ delicious orange juice that we all would love to drink it.

　　8.It is _____________a little dog that Lucy likes it very much.

　　9.There is ____________little water that it is not enough for ___________many people.

 。