主系表结构：
由主语+系动词+表语(S+V+P)组成，主要用以说明主语的特征，状态，身份等。 P一般是形容词或名词，V是系动词
E.g. The report sounds interesting. 这则消息听起来很有趣
The desk feels hard 书桌摸起来很硬。
(The desk是主语，feel是系动词，hard是形容词，作表语)
She is beautiful. 她很漂亮。
(she___，is是___， beautiful是__，做_语)
The hamburger looks good. ( )
常见的系动词
（1）表存在状态的 be, feel, look, smell, taste, sound.
（2）表状态延续的 keep
（3）表状态变化的 become, get, turn, go, come
表示特征和存在状态的
1. You don’t look very well.
2. The roses smell sweet.
3. How sweet the music sounds!
表示状态延续的
1.Children, keep quiet please.
表示状态变化的
1. Mary’s face went/turned red.
2. At the age of fifteen he became a famous writer.
练习题：
1.---You don't look very ___. Are you ill?
--- No,I'm just a bit tired.
A. good B. well C. strong D. healthy
2.What he said sounds _____ .
A. nicely B. pleasantly C. friendly D. wonderfully
3. These oranges taste _____ .
A.good B. well C. to be good D. to be well
1. The cotton fells ______ . ( A. soft B. softly )
2. I felt ______ sorry at his words. ( A. terrible B. terribly )
3. The little hero looked ___ at the enemy. ( A. angry B. angrily )
4. Tasting _____, the food was soon sold out. ( A. good B. well )
5. It is ______ of you to act ______ . ( A. bad B. badly )
6. Traveling is ___, and I am ___ in it( A. interesting B. interested )
7. After ten years’ hard work ,he ____ writer. ( A. became B. turned )