1、系动词，亦称连系动词（Link Verb）。作为系动词，它本身有词义，但不能单独用作谓语，后边必须跟表语，亦称补语（形容词），构成系表结构说明主语的状况、性质、特征等情况。

2、英语连系动词的分类

(1) 状态系动词：只有be一词。如：

She is alwayslike that. 她总是那样。

I am used togoing about alone. 我习惯于独来独往。

These shoesare too tight for me. 这双鞋我穿太小。

(2) 持续系动词：表示主语继续或保持一种状况或态度，主要有keep,remain, stay, lie, stand。如：

I hope you’llkeep fit. 我希望你身体好。

Healways kept silent at meeting. 他开会时总保持沉默。

The door remained closed. 门仍然关着。

We can remainfriends. 我们可以继续做朋友。

Please stay seated. 请继续坐着。

He stayed single. 他仍然是单身。

(3) 表像系动词：表示“看起来好像”，主要有seem,appear, look等。如：

Helooks tired. 他看起来很累。

He seems (to be) quite happy. 他好像很快活。

The doctorseemed very capable. 那医生似乎很能干。

He appeared quite well. 他显得身体相当好。

He appeared taken aback. 他似乎很吃惊。

She appeared perplexed. 她显得迷惑不解。

(4) 感官系动词：表示“……起来”，有feel(摸起来，感觉), smell(闻起来), sound(听起来), taste(尝起来，吃起来)等。如：

Thiskind of cloth feels very soft. 这种布摸起来很软。

He lookshonest, but actually he’s a rogue. 他看起来很老实，实际他是一个坏蛋。

They all lookalike to me. 他们的模样我看起来都一样。

Everybodyfeels contented. 每个人都感到很满足。

Ice feels cold. 冰感觉起来是凉的。

Silk feels soft and smooth. 丝绸摸起来很柔软平滑。

It sounds agood idea. 这听起来是个好主意。

This foodtastes good. 这菜好吃。

(5) 变化系动词：表示主语变成什么样，主要有become,grow, turn, fall, get, go, come, run如：

Hebecame mad after that. 自那之后，他疯了。

She had grown thinner and thinner. 她越来越瘦了。

His cold was growing worse. 他的感冒越来越严重了。

She’s growing fat. 她正在发胖。

He’s grown used to it. 他对此已经习惯。（这个’s 是has）

When she saw this, she turned red. 她看到这，脸红了。

His hair turned grey in a few weeks. 在几个星期中他头发就变灰白了。

The milk will soon turn sour. 牛奶很快就会变酸。

Severalpeople fell ill, victims of blood poisoning. 几个人生病了，都是血中毒的受害者。

We get wiseras we get old. 随着年岁的增长，我们也变得聪明些了。

Your hair has gone quite white! 你的头发全白了!

She went pale at the news. 听到这消息，她脸色变得苍白。

When I mentioned it to him he went red. 我对他提及此事时他脸红了。

He went mad. 他疯了。

The children must not go hungry. 孩子们不能挨饿。