本文就洗词用法进行了分类,同样使用于高一、高二

常见系动词的分类及使用特点

系动词词义不完整，在句中不能单独使用（除省略句外），后面必须接有表语，系动词和表语一起构成合成谓语。常见的系动词大致可分为三类。

第一类：表示特征或状态的，有 be, look, feel, seem, appear, smell, taste, sound, turn out（结果是、证明是）等。

You'll be all right soon.

You don't look very well.

I feel rather cold.

He seems to be ill.

It appears that he is unhappy.

The roses smell sweet.

The mixture tasted horrible.

How sweet the music sounds!

The day turned out (to be）a fine one.

第二类：表示从一种状态到另一种状态的变化，有

become, get, grow, turn, fall, go, come, run 等。

He became a world-famous scientist.

It is getting warmer and warmer.

It grew dark.

The food has turned bad.

Yesterday he suddenly fell ill.

Mary's face went red.

His dream has come true.

The boy's blood ran cold.

第三类：表示保持状态的，有keep, remain, continue 等。

Keep quiet, children!

The weather continued fine for a long time.

It remains to be proved.

系动词后的表语可以是名词、代词、数词、形容词、分词、动名词、不定式、副词、介词短语、词组、从句，系动词 be 可用于上述所有情况。如：

The people are the real heroes. (名词)

That's something we have always to keep in mind. (代词)

She is often the first to come here. (数词)

She is pretty and wise. (形容词).

The news was surprising. (分词)

His job is teaching English. (动名词)

The only method is to give the child more help. (不定式）

I must be off now. (副词)

The bridge is under construction. (介词短语)

That would be a great weight off my mind. (词组)

This is why he was late. (从句)

系动词的使用特点：

1、所有的系动词都可接形容词作表语，此处略举数例。