半系动词就是相当于be的动词，可以替换纯系动词。用于连接
主语和
表语,说明
主语的状态、性质特征或身份等。
术语分类
半系动词后可用名词、不定式、分词和形容词等作
表语，这类词有：
1.表感官的系动词：look, sound, notice，taste, smell, feel（这些词用形容词作表语）
2.表似乎的系动词seem, appear
3.表变化的系动词：become, get, turn, grow, make, come, go, fall, run
4.表依旧的系动词：remain, keep, stay, continue, stand, rest, lie, hold
5.可带名词作
表语的系动词：become, make, look, sound, fall, prove, remain, turn（该词后接的单数名词前多不用冠词。如：He turned teacher.）
如果读者对于这个语法现象还是不怎么理解的话，可以以这个名句为例子学学：the man who dies rich dies disgraced.在巨富中死去，是一种耻辱。其中的rich and disgraced 是说明
主语的性质的。
状态系动词
He is a teacher. 他是一名教师。（is与补足语一起说明
主语的身份。）
持续系动词
用来表示
主语继续或保持一种状况或态度，主要有keep, rest, remain, stay, lie, stand, 例如：
He always kept silent at meeting. 他开会时总保持沉默。
This matter rests a mystery. 此事仍是一个谜。
表像系动词
He looks tired. 他看起来很累。
He seems (to be) very sad. 他看起来很伤心。
感官系动词
感官系动词（以描述感觉为主的词）主要有feel, smell, sound, taste, 例如：
This kind of cloth feels very soft.
这种布手感很软。
This flower smells very sweet.
这朵花闻起来很香。
变化系动词
这些系动词表示
主语变成什么样，变化系动词主要有become, grow, turn, fall, get, go, come, run.
例如：
He became mad after that. 自那之后，他疯了。
She grew rich within a short time. 她没多长时间就富了。
终止系动词
The rumor proved false. 这谣言证实有假。
The search proved difficult. 搜查证实很难。
His plan turned out a success. 他的计划终于成功了。（turn out表终止性结果）
注意：可带名词作
表语的系动词be, become, make, look, sound, fall, prove, remain, turn后接的单数名词 前多不用冠词。
appear, be become, fall, feel, get, grow, keep, look, remain, seem, smell, sound, stay, taste, turn
如： It sounds good.
实例解析
半系动词通常可以和形容词连用，有些半系动词可以和
介词短语或asif等
连词连用。现将半系动词分为四类进行讨论。
1、“
感官动词”类：look feel smell taste sound等，例如：
(1)The story sounds_______.(MET89)
A.to be true B.as true C.being true D.true
(2)Those oranges taste_______.(MET91)
A.good B.well C.to be good D.to be well
(3)--Are you feeling_______ (NMET92)
--Yes I'm fine now.
A.any well B.any better C.quite good D.quite better
(4)--Do you like the material
--Yes it______very well.(NMET94)
A.is feeling B.felt C.feels D.is felt
(5)--How are you today
--Oh I______as ill as I do now for a very long time.
(NMET2000)
A.didn't feel B.wasn't feeling
C.don't feel D.haven't felt
(6)--You don't look very______.Are you ill?
--No I'm just a bit tired.(北京春招2003)
A.good B.well C.strong D.healthy
(7)The man we followed suddenly stopped and looked as if
______whether he was going in the right direction.
(2003春招)
A.seeing B.having seen C.to have seen D.to see
解析 此七题的答案分别是DABCDBD。此类半系动词通常可以直接搭配形容词或like或asif等结构。此类半系动词一般不使用进行时或
被动语态。第(7)题的asif后实际上省略了hewanted.
2、“状态变化”类：get turn go come become grow fall make等，例如：
(1)--How long_____each other before they______married?
--For about a year.(NMET93)
A.have they known; get
B.did they know; were going to get
C.do they know; are going to get
D.had they known; got
(2)Cleaning women in big cities usually get_____by the hour.(NMET98)
A.pay B.paying C.paid D.topay
(3)As we joined the big crowd I got______from my friends.(NMET2001)
A.separated B.spared C.lost D.missed
(4)Becareful when you cross this very busy street. If not
you may______run over by a car.(北京春招2002)
A.have B.get C.become D.turn
(5)--How are the team playing?
--They are playing well but one of them______hurt.
(2002春招)
A.got B.gets C.are D.were
解析 此五题的答案分别是DCABA。由此可见get后搭配
过去分词构成
系表结构是非常常见的一种搭配形式。它常表示一种状态，不强调动作。
3、“保持不变”类：stay lie stand keep remain continue等，例如：
(1)Having a trip abroad is certainly good for the old
couple but it remains______whether they will enjoy it.
(NMET2002)
A.to see B.to be seen C.seeing D.seen
(2)--Mummy can I put the peaches in the cupboard?
--No dear.They don't______well. Put them in the
fridge instead.(2002北京春招)
A.keep B.fit C.get D.last
(3)Why don't you put the meat in the fridge?
It will______fresh for several days.(NMET2003)
A.be stayed B.stay
C.be staying
D.have stayed
解析 此三题的答案分别是BAB。此类半系动词后常搭配形容词、
副词或
不定式结构。