系动词

系动词,也称 联系动词(Linking Verb),是用来辅助主语的动词。它自己有词义,但不能单独用做 谓语,其后必须跟 表语,构成 系表结构说明 主语的情况、性质、特征等状况。
 
在英语中,系动词的功能主要是把表语(名词、形容词、某些副词、非谓词、 介词短语从句)和它的主语联系在一块儿,说明主语的性质、特征、品性或状态。它有本身的但不彻底的词义,不能在句中独立做 谓语,必须和后面的表语一块儿 构成句子的谓语。它虽是 虚词,可是其用法是复杂的,并且不可忽视。
 
定义 编辑
链接主语和表语的动词称为联系动词。不能独立存在 ,后面必须跟表语一块儿构成复合谓语,表示主语的身份、类别、特征、状态等。
例如:He felt ill yesterday.  他昨天病了。(felt是系动词,后跟表语,说明 主语状况。)。
关于 连系动词后接 不定式
■ 连系动词 be (am,is,are)后根据状况可自由地接不定式做 表语
1).My dream is to be a scientist. 个人梦想是当一名科学家。
2).All you have to do is to listen. 你只须要听。
■ seem, appear, prove, turn out, grow 等连系动词后也可接不定式(尤为是 to be)短语做表语:
1).The man seemed to be ill. 这我的好像病了。
2).The plan proved to be useful. 这个计划证实是有用的。
3).He appears to know this. 他好像知道这一点。
4).The weather turned out to be fine. 天气结果很好。
5).He has grown to like studying English. 他渐渐喜欢学英语了。
若所接不定式为to be,一般能够省略to be。
■ sound, smell, feel, taste, become 等连系动词后一般不能接 不定式:(也能够理解为用主动表被动)
误:These oranges taste to be good. (应去掉 to be)
误:The roses smell to be nice. (应去掉 to be)
连系动词look后有时也可接to be,但以省略to be为多。
用法总结:通常地,系动词后接表语:[包括形容词(原级、比较级和最高级都可加)、不定式等]。

系动词详细分类

编辑
系动词的主要分类:
1)状态系动词
  
 用来表示主语状态,只有be一词,例如:
  He is a teacher. 他是一名教师。(is与补足语一块儿说明主语的身份。)
   2)持续系动词
  用来表示主语继续或保持一种情况或态度,主要有keep, remain, stay, lie, stand, 例如:
  He always keeps silent at meeting. 他开会时总保持沉默。
  This matter remains a mystery. 此事还是一个谜。
   3)表像系动词
  用来表示"看起来像"这一律念,主要有seem, appear, look, 例如:
  He looks tired. 他看起来很累。
  He seems (to be) very sad. 他看起来很伤心。
   4)感官系动词
  感官系动词主要有feel, smell, sound, taste, 例如:
  This kind of cloth feels very soft.
  这种布摸起来很软。
  This flower smells very sweet.
  这朵花闻起来很香。
   5)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. 自那以后,他疯了。
  She grew rich within a short time. 她没多长时间就富了。
   6)终止系动词
  表示主语已终止动做,主要有prove, turn out, 表达"证明","变成"之意,例如:
  The rumor proved false. 这谣言证明有假。
  The search proved difficult. 搜查证明很难。
  His plan turned out a success. 他的计划终于成功了。(turn out表终止性结果)
常见类型概括:be动词(am,is,are),感官动词(feel,look,smell,sound,taste,seem),“变得”词(get,become,turn,grow),“保持”(remain)。

系动词注意事项

编辑
系动词自己有必定的词义,不能单独做谓语,后面与表语连用。复习系动词时,必须注意如下几个问题:
1.系动词be是最重要的,主语不一样,be的形式也不一样,且有时态的变化。
一般表示主语的特征、状态和身份等,后面接形容词、副词、名词、介词短语、不定式、v-ing、过去分词及表语从句做表语。
特别要注意“由be+过去分词”所构成的系表结构与“由be+过去分词”所构成的被动语态的区别。
前者侧重于表示主语的特征或所处的状态,一般没有由by引导的介词短语。
如:The door was closed.
后者侧重于强调主语是谓语动词所示动做的承受者,表示动做;句中能够用由by引导的介词短语。如:The door was closed by me.
还要注意“由be+ V-ing所构成的系表结构与“由be+ V-ing”所构成的进行时态的区别。
前者侧重于说明主语具备的特征或存在的状态,也可说明主语是什么。如:My job is teaching English.
后者侧重于强调主语正在作某事。如:Mr Wang is reading an evening paper now.
2. 要注意由行为动词转化成的系动词。
表示人体感官的系动词有sound,taste,look,feel,smell等,后面接形容词;
表示主语从一种状态转变到另外一种状态的系动词有become,get,go,turn,run,grow,come,fall,prove等,后面接形容词、名词或 to be+形容词,become后面接单数名词时,名词前要用不定冠词,turn后面接单数名词时,名词前不用不定冠词;
表示主语继续或保持某种身份、特征或状态的系动词有continue,keep,remain,stay,stand lie,rest,stay等,后面接表示状态的形容词;
表示判断的系动词有seem和appear,后面接形容词、to be+名词或形容词、从句、不定式等。
3. 要注意系动词的固定搭配。常见的有come true, fall asleep, fell ill, go bad, come right, run wild, wear thin, turn nasty等。
4.  要特别注意某些动词既能够作系动词又能够作实义动词的用法。
系动词部分主要注意:其后要求接形容词,而不是副词作表语。遇到这种状况,只能先根据其意思判断清楚究竟是前者仍是后者,而后再对后面的词性和词义作出正确判断和选择。以taste一词为例:
The newly-invented soft drinking tastes quite unique.(这种新研制的软饮料尝起来挺独特的。注意:在这句话里,taste作系动词,不能使用进行时,后面接形容词。)
The chief is tasting the fish carefully.(厨师长正在品尝这道鱼。注意:在这句话中,taste作实意动词,可使用进行时,而且后面接副词作状语。)
系动词用法应注意的七个问题
1.系动词的进行时态应分状况讨论。
通常地说,状态系动词无进行时态,而动态系动词有进行时态。可是在某些状况下,状态系动词也有进行时态,表示两个用途:一是表示一种短暂的、反常的状态。如:
He is being kind.(一时而不能持久的性质)
他装出和善可亲的样子。
二是表示一种探询口气,使语言客气、生动、亲切。例如:
I hope you are keeping well.(语气委婉)
我但愿你保持健康。
Are you feeling any better?(语气亲切)
你感受好了些吗?
试比较:
Your hand feels cold.(无心识的静态性质。)
你的手摸起来冰凉。
不能够说:
Your hand is feeling cold.(×)
但能够说:
The doctor is feeling her pulse.
(有意识的动态动做)
医生正在给她拿脉。
The soup tastes good.(静态性质,无进行时)
这汤的味道不错。
The cook is tasting the soup.(动态动做,有进行时)
厨师在尝汤的味道。
总之,系动词有无进行时态应随系动词的意义或其语境变化而变化。咱们在概述某一动词的进行时态时,不能笼统地说feel,smell无进行时,应指出其意义及其语用环境。例如smell的用法可见一斑。
①smell做“嗅觉”的能力时,虽是实义动词,但指的是一种性质的存在状态不能用于进行时态,常与can, could, be able to连用。
The camels can smell the water a mile off.
骆驼能嗅出一英里外有水。
②指“嗅、闻”的动做时,实义动词,可用于进行时态。
The girl is smelling the flower.
这姑娘正在闻那朵花。
③smell指“含有……气味”,“发出……气味”等事物性质时,半系动词,无进行时态。
The dinner smells good.
这饭菜闻起来真香。
2.系动词的时态与形容词的比较级连用的问题。
某些含有变化意义的动态系动词如get, become, grow, turn等的进行时态可与形容词的比较级连用,表示渐进过程,其意思是“愈来愈……”。例如:
He is growing taller and taller.
他长得愈来愈高了。
Our life is getting better and better.
咱们的生活是愈来愈好了。
The things are getting worse.
状况是愈来愈糟了。
3.全部半系动词的被动语态要分状况讨论。
英语中某动词在做系动词用时,无被动语态,而做实义动词用时,才有被动语态,两者不可混为一谈。例如:
不能说:
The apple is tasted good.
(由于taste此时是系动词,“尝起来”之意,指的是苹果的性质,无被动语态)
但咱们能够说:
The apple is tasted by me.
这苹果被我尝了一下。
(taste此时指“尝一尝”这一动做,有被动语态)
所以,在平时的英语教学和学习之 ,要有意注意半系动词在具体的语言环境中究竟是系动词用法仍是实义动词用法,要注意区分、识别。
4.瞬间动态系动词可否与时间段连用的问题
英语中某些表示瞬间意义的系动词不能与“for+时间段,since+时间点,how long until+时间,by + 时间,so far”等直接连用。例如:
①不能说:He has become a teacher for 2 years.
  应改成:He has been a teacher for 2 years.
②不能说:He has turned writer since 3 years ago.
  应改成:He has been a writer since 3 years ago.
  或It is three years since he turned writer.
③不能说:He got angry until his child came back home.
  应改成:He didn’t get angry until his child came back home.
5.系动词能接几种表语(从句)
系动词除了接adj.\n.\prep.短语,某些adv.之外,还可接如下几种表语形式:
①能接as if/as though表语从句的系动词有:look(看起来),smell(闻起来),sound(听起来),feel(以为);appear(看起来,同look、seem),seem(彷佛)。例如:
It looks as if we are going to have snow.
  看样子天要下雪了。
He looked as if he had just stepped out of my book of fairy tales.
  他看来好像刚从个人童话故事中走出来似的。
She seemed as if (though) she couldn’t understand why Laura was there.
  看来她好像不能理解为何劳拉呆在那儿。
It sounds to me as though there’s a tap running somewhere.
  我好像听到某处水龙头流水的声音。
She felt as if her head were splitting.
  她仿佛以为她的头要裂开了。
The river appeared as if enveloped in smog.
  那条河好像笼罩在烟雾之中。
It seems as if it were spring already.
  好像已经是春天了。
②可用于“It+系动词+that从句”结构的有:seem, appear, 不可用be, look。如:
It seemed that he had made some serious mistakes in his work.
  好像他在工做中犯了严重错误。
It appeared that he was talking to himself.
  好像他在自言自语。
③能用不定式做表语的系动词有:be, seem, get, look, appear, prove, grow.
Her job is to look after the children.
  她的工做是照料孩子们。
He seems not to look after the children.
  他彷佛没有照顾孩子。
She looks to be a young girl of twenty year-old.
  她看起来像是一个20岁的年轻姑娘。
He didn’t appear to dislike it.
  看不出他憎恨此事。
My advice proved to be wrong.
  个人建议证实是错误的。
He will grow to like this work gradually.
  他会逐渐喜欢这个工做的。
④能与there连用的系动词有:be, appear, seem.
There appeared to be only one room.
  那儿好像只有一个房间。
There seems(to be)no need to go.
  彷佛没有必要走。
6.能用两种否认形式的系动词有两个:seem, appear.
举例说明:
It doesn’t seem that we can get our money back.
= It seems that we can’t get our money back.
He seems not to be her father.
= He doesn’t seem to be her father.
The baby doesn’t appear to be awake.
= The baby appears not to be awake.
7.后接做表语的过去分词可构成系表结构
能构成系表结构的系动词一般有两个:第一个是常见的be(is, am, was等);第二个是get,口语中经常使用。当两者做系动词用时,它们均表示一种存在状态,而不表示被动动做;当两者做助动词用时,后接做谓语的过去分词构成 被动语态
Be + 过去分词常能够用Get+过去分词来代替,可是并非be系动词老是能够用get来代替。Get+过去分词经常使用于如下两种状况:
1)表示偶然的、突发性的、意想不到的被动动做的结果或状态。
Last night I got caught in the downpour.
昨夜我被雨淋了(表示意想不到)
The new car got scratched.
新车给刮坏了。(表突发性)
著名学者 周海中教授在论文《Get-Passive研究》中指出:Get+过去分词的被动语态是一种新兴的被动语态形式;相对来讲它的使用尚未Be+过去分词构成的被动语态那么普遍,通常限于 口语和非正式 书面语;但它却有着用得越来越多的趋势,是一种生气蓬勃的语言现象。 [1]  
2)表示对自身所做的事。如get dressed, get lost等。
John got injured while playing football last Saturday.
约翰上周星期六踢足球时受了伤。
They got married last month.
他们上个月结婚了。
另外,要注意区分系表结构与被动语态结构的用法。
8.系动词与动词的区别
  
系动词亦称联系动词(Link Verb),做为系动词,它自己有词义,但不能单独用做谓语,后边必须跟表语(亦称补语),构成系表结构说明主语的情况、性质、特征等状况。可是,有些系动词又是实义动词,该动词表达实义时,有词义,可单独做谓语。
例如:  He felt ill yesterday.  他昨天病了。(felt是系动词,后跟补足语,说明主语状况。)
He fell off the bike.  他从自行车上摔下来。
fell是实义动词,单独做谓语。表示动做中状态的词叫作动词。根据其在句中的功能,动词可分为四类,分别是:实义动词、系动词、助动词、情态动词。可是,有些状况下,有些动词是兼类词。
例如:  We are having a meeting.  咱们正在开会。(have是实义动词。)
He has gone to New York. 他已去纽约。(have是助动词。)
动词根据其后是否带有宾语,可分为两类,分别是:及物动词、不及物动词,英语缩写形式分别为vt. 和vi.。可是,同一动词有时可用做及物动词,有时可用做不及物动词。
例如:  She can dance and sing. 她能唱歌又能跳舞。(sing在此用做不及物动词。)
She can sing many English songs. 她能唱好多首英文歌曲。(sing用做及物动词。)

系动词怎样区分

编辑
连系动词多有本身的意思,但不能独立做谓语,必须与表语(名词、形容词,或与之至关的词类、 短语、从句)一块儿构成合成谓语。最经常使用的连系动词为be(系)动词,即彻底连系动词,另外还有look,turn,feel,get,become,sound,smell,stand,go,remain等半连系动词。不管是彻底连系动词仍是半连系动词、后面都有表语。半连系动词是由实意动词变来的,分辨该动词为实意动词仍是半连系动词能够尝试用比较法和替换法。

系动词比较法

比较下列各组句子
  1. A. Please look at the blackboard.请看黑板。
      B. He looked a perfect fool.他看上去是个十足的神经病
  2. A.Turn to Page 16.翻到 16页。
      B.He turned traitor to his country.他背叛了祖国。
  3. A.He felt it his duty to help others.他认为帮助别人是本身的责任。
      B.I felt very hungry after a long walk.走了一段长路,我感到很饿。
  4. A.Get me some ink.给我一些墨水。
      B.Our motherland is getting stronger and stronger.咱们国家变得愈来愈强大了。
  5. A.Such words do not become a scholar.那样的话不像出自学者之口。
      B.Some of the fields became covered with water.一些田地覆盖着水。
  6. A.This black key on the piano won''t sound.这钢琴上的黑键按下去不响。
      B. The story sounds interesting.这故事听起来颇有趣。
  7. A.I am sure I smell gas.我确定闻到了煤气味。
      B.The flowers smell sweet.花朵散发芳香。
  8. A.He was too weak to stand.他太虚弱,不能站立。
      B.Holding the note in his hand,he stood there dumbfounded.他拿着钞票,站在那里,目瞪口呆。
  9. A.He goes to school early every morning.他天天早上很早上学。
      B. They went mad.他们发狂了。
  10. A. I remained 3 weeks in Paris.我在巴黎逗留了三周。
      B.He never remained satisfied with his success.他从不知足于本身的成绩。

系动词替换法

分析以上10组句子咱们不难看出B组动词均为连系动词,由于若是咱们把动词 be(是)的适当形式替代斜体动词,句子可以成立,后面的成分便是表语。
(1)He was a perfect fool.
  (2)He was a traitor to his country.
  (3)I was very hungry after a long walk.
  (4)Our motherland is stronger and stronger.
  (5)Some of the land was covered with water.
  (6)The story is interesting.
  (7)The flowers are sweet.
  (8)Holding the note in his hand,he was there dumbfounded.
  (9)They were mad.
  (10)He was never satisfied with his success.
反之,若是把 be(是)动词的适当形式替代 A组动词,句子则不能成立,没法解释,A组动词均不为连系动词:
*(l)Please be at the blackboard.
  *(2)Be to Page l6.
  *(3)He was if his duty to help others.
  *(4)Be me some ink.
  *(5)Such words are not a scholar.
  *(6)The black key on the piano won''t be.
  *(7)I am sure I am gas.
  *(8)He was too weak to be.
  *(9)He is to school early every morning.
  *(10)I was 3 weeks in Paris.
另外半连系动词是由实意动词变来的。因此把含有半连系动词的句子改成疑问句时,必定要用助动词。
例如:1. Do they look tired?
2.Has she got ready?
3.Did it become much more expensive to travel abroad?
不论彻底连系动词或半连系动词,它们都有时态的变化,但有些半连系动词从形式上看像是如今进行时,实际上并不表示动做正在进行。而是表示“渐渐”的意思或表示一种感情色彩。
(1)It's getting warmer and warmer.
  天渐渐暖和起来了。
(2)Are you feeling better now?
  你如今好点了吗?
由于 半系动词本属于不及物动词,因此没有被动语态。
如不能说:* Good medicine is tasted bitter to the mouth.应说:
Good medicine tastes bitter to the mouth.良药苦口。

系动词专项训练

编辑

系动词练习题

  1. —What is Mr Wang like?
      —____.
      A. He is a teacher
      B. He is old and kind
      C. He looks like a balloon
      D. He likes English
  2. What Mr White said sounds____.
      A. friendly B. wonderfully C. pleasantly D. nicely
  3. The poor boy ____ blind at the age of three.
      A. turned B. goes C. became D. went
  4. When he was a child he____ .
      A. grew patience B. was alive C. ran wild D. came true
  5. His voice____ as if he has a cold.
      A. sounds B. listens C. hears D. seems
  6. This shirt___ as if it is made of cotton.
      A. is B. looks C. feels D. seems
  7. He looks ___ he hadn’t had a good meal for a month
      A. that B. as if C. when D. so far
  8. It ____that he was late for the train.
      A. looks B. turns C. gets D. seems
  9. These apples taste_____.
      A. to he good B. to be well C. well D. good
  10. —Do you like the shirt?
      —Yes, it ____ very soft.
      A. feels B. felt C. is feeling D. is felt
  11. The moment Mr Zhang went to bed, he____ asleep
      A. kept B. got C. fell D. fall
  12. When I went home yesterday, it was ____ dark.
      A. going B. getting C. running D. coming
  13. Their plan ____ to be a perfect one.
      A. proved B. was proved C. is proving D. proving
  14. The flowers in the garden ____ sweet.
      A. sound B. taste C. become D. smell
  15. She____ like her mother in character.
      A. looks B. seems C. is D. feels
  16. It____ another fine day tomorrow.
      A. seems B. promises C. appears D. looks
  17. He ____ much younger than he really is.
      A. appears B. grows C. becomes D. turns
  18. You____ very pale. Do you feel sick?
      A. looked B. look C. looking D. are looked
  19. His wish to become a driver has ____true.
      A. turned B. realized C. come D. grown
  20. Her father ____a writer.
      A. turned B. grew C. has turned D. has become
  21. Neither of us ____ a doctor.
    A. am B. are C. is D. were
  22. He ____ a famous writer.
    A. turns B. become C. has become D. has turned
  23. The girl's face ____ red.
    A. turned B. got C. feel D. look
  24. He ____ very glad.
    A. looked B. turned C. feel D. looks
  25. The flowers ____ fragrant (芳香).
    A. get B. smells C. smell D. feels
  26. The table ____ very smooth.
    A. look B. turn C. feels D. smell
  27. Jack ____ younger than Tom.
    A. look B. feel C. feels D. looks
  28. She looks ____.
    A. happy B. to be happy C. happily D. that she is happy
(二)用smell,taste,go,get,become,grow,seem,look,feel,turn的适当形式填空:
  1. You _ _ __ very young.
  2. At first those questions_ _ __easy, but later I found them difficult.
  3. After the sports meeting, he _ _ __very tired.
  4. My younger brother _ _ __a student last year.
  5. When we_ _ __ up, we're going to help build up our country.
  6. The flowers _ _ __very sweet.
  7. Her face _ _ __red.
  8. Jack _ _ __very happy.
  9. The mooncake _ _ __good.
  10. The meat_ _ __bad.

系动词答案分析

1. B What’s...like?是询问人或事物的性质特征状况的交际用语,答语中常含有说明性质特征状况的形容词。   2. A sound表示“听起来”,后面接形容词做表语,答案B、C、D均为副词。   3. D若人或事物的状况变化是永久性的或难以扭转的坏变化时,用系动词go表示。   4. C run wild是固定搭配,表示“放荡不羁”。   5. A sound表示“听起来”,后面接as if 引导的表语从句,表示对主语所表示的特征、状态或性质做出的反应及判断。   6. C feel做系动词用时,表示“(东西)摸上去使人有某种感受”。   7. B as if引导表语从句时,从句谓语动做发生在主句谓语动做以前,从句谓语用过去完成式。   8. D “ It seems that…” 表示“看起来……”。是固定句型,强调根据必定的事实所得出的一种接近于实际状况的判断。   9. D taste表示“尝起来”时,是系动词,后面接形容词做表语。   10. A feel表示“(某物)摸上去(使人)有某种感受”时,是系动词,用于通常如今时。   11. C fall asleep表示“入睡”,是固定搭配,根据题意,应用过去时。   12. B get表示“逐渐……起来”、“开始……起来”时,是系动词,多用于进行时。   13. A prove表示“证实是”时,是系动词。   14. D smell表示“有……的气味”、“散发气味”时,是系动词,后面接形容词。   15. C belike表示“看起来像”时,既可指外貌,又可指品质和特征,侧重于特征。   16. B promise表示“有……的可能”、“给人以……的期望”时,是系动词,后面接名词做表语。   17. A appear表示“看起来”时,是系动词。侧重于在外表给人某种印象,常为“假象”。   18. B look表示“显得”、“看起来”时,是系动词,后面接形容词做表语,用进行时态,常带有感情色彩。   19. C come true是固定搭配,表示“实现”,其中come是系动词,表示“成为”、“变得”。   20. D become表示“变成”,做系动词用,在后面做表语的名词前要加a或an。turn后跟可数名词单数要去掉a(n)。
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