英语语法之动词.pptx
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1、英语语法动词 by Ariel第1页/共90页动词 动词的分类 动词的各种形式 动词的时态 动词的语态01020304第2页/共90页动词第3页/共90页一、动词的分类四类:实义(行为)动词,连系动词,助动词和情态动词。1.实义动词意义完整能够独立作谓语可细分为:及物动词和不及物动词第4页/共90页1.1 及物动词(vt.必须跟宾语,有被动态)1)及物动词通常以表示人的名词或代词为宾语:His joke didnt interest me.She tried to comfort him.His speech angered the audience.2)以表示物的名词为宾语:You can
2、keep the book.“Brush your teeth!”mom said.第5页/共90页3)及物动词可以跟“双宾语”(直接宾语和间接宾语),也可跟“复合宾语”(宾语和宾语补足语)。People give me their money.In England,people usually call me Jim for short.I found a small boy cry in the corner yesterday.1.1 及物动词(VT.必须跟宾语,有被动态)第6页/共90页1.1 及物动词(vt.必须跟宾语,有被动态)间接宾语有时可以放到后面去(give sth.to s
3、b.句型)由介词to引起,变成介词短语He handed his key to the teacher.She lent some money to her friend.常见动词:take,lend,sell,teach,give,grant,mail,offer,owe,post,etc.由介词for 引起(for 表示承受者)He bought a gift for his daughter.He played some ancient Chinese music for us.常见动词:book,bring,buy,cook,design,find,get,order,paint,ke
4、ep,etc.第7页/共90页扩展带省略to的不定式或现在分词-ing作宾补的动词有:make,let,have,see,watch,notice,hear等。see sb.do/doing sth.区别在哪?带双宾语的动词有:give,bring,buy,get,leave,lend,make,offer,pass,teach,tell,write,read,return等。回顾to和for第8页/共90页“短语动词”相当于实义动词,但意义往往与原动词有些差别,主要有:动词介词:相当于一个及物动词。如:look after“照顾”,look for“寻找”。动词副词:这类短语动词有的作及物动
5、词,有的作不及物动词。如:ring up“打电话”(用作及物动词),look out“小心”(用作不及物动词)。动词副词介词:这类短语动词一律用作及物动词。如:do away with“去掉”,go back to“回到(某处)去”,go on with“与(某人)相处”。动词名词介词:这类短语动词也只能用作及物动词。如:take care of“照顾”,take part in“参加”。be形容词介词:这类形容词包括起形容词作用的分词,也相当于及物动词。如:be ready for“做准备”,be full of“充满”,be interested in“感兴趣”。第9页/共90页1.2 不
6、及物动词(Vi.无宾语,无被动态)Eg:Her back ached.The situation is deteriorating.(局势正在恶化)Birds fly.许多不及物动词表示运动或待在某处,后面常跟一个表示地点或方向的状语。The ship sailed westward.The river flows east into the sea.常见的这类词:come,drift,flow,glide,go,lie,live,remain,run,etc.第10页/共90页2.系动词有词义,但是不能单独作谓语,必须和表语一起构成主系表结构说明主语的状态、性质、特征或身份分类:状态系动词持
7、续系动词感官系动词变化系动词 第11页/共90页2.1 状态系动词只有be(is/am/are,was/were,to be,being,have been)动词,表示主语的状态。含义:-是什么,-怎么样,-在哪里Eg:我在教室里。Tom 和 lily是好朋友。Sally很漂亮。我昨天在学校。第12页/共90页2.2 持续性动词表示主语继续或保持一种状况或态度,有:keep;stay;remain等Eg:I hope youll keep healthy.He stayed single.第13页/共90页2.3 表象系动词表示“看起来好像”,有:seem,appear等。Eg:He seem
8、s(to be)quite happy.She appeared calm.第14页/共90页2.4 感官系动词表示:某物使人产生的感觉。look 看起来 sound 听起来 smell 闻起来 taste 尝起来 feel 感觉起来后加形容词He looks tired.This flower smells very sweet.This kind of cloth feels very soft.This cake tastes delicious.第15页/共90页2.5 变化系动词表示主语变成什么样,有 become,grow,turn,fall,get,go,come,run.Eg:
9、He became mad.The girl grew thinner and thinner.Soon the sky grew light.第16页/共90页2.5 终止系动词主要有prove,turn out(结果是,证明是)等Eg:His story proved false.The crops turn out well.第17页/共90页注意:注一下面句子中的come和go也是连系动词。如:The old mans dream has come true.这位老人的梦想实现了。Something has gone wrong with the truck.卡车出毛病了。注二有些连系
10、动词如seem,appear等后面常跟to be。如:The new text seens to be easy,but actually it is rather difficult.这篇新课文好像很容易,其实相当难。She appears to be the girls sister.她似乎是那女孩的姐姐。第18页/共90页3.助动词本身没有意义,不能单独作谓语。必须和其他动词连用,帮助其他动词构成时态、语态、否定句和疑问句等。1.be(am/is/are was/were been being)2.have(has/had)3.do(does/did)4.will(would)&shal
11、l(should)第19页/共90页3.1 be,have,do(1)be 有am,is,are,was,were,been,being等多种形式,可以构成:a.进行时态:We are working.She has been reading a novel.How are you doing?b.被动语态:What is the flower called?The road is being repaired.They have been given a warning.第20页/共90页3.1 be,have,do(2)have有has,have,had三个形式,主要用来构成:a.完成时态
12、:表示一段时间内已经完成的动作或存在的状况。Where have you been?We have finished our work already.She has gone to town.b.完成时态表示一段时间一直进行的动作。(完成进行时)What have you been doing?She has been teaching there for twelve years.He said he had been waiting for a reply.第21页/共90页3.1 be,have,do(3)do有do,does,did三种形式,可以用来:a.构成疑问句How do yo
13、u like the weather here?Did you see yesterdays film?b.构成否定句She does not work here.We do not often go there.c.加强语气,用于强调句I do think you are right.She does feel that way.d.代替前面的动词以免重复。Do you know her?Yes,I do.I love flowers.So do I.She got there earlier than I did.第22页/共90页3.2 shall,will,should,wouldWi
14、ll(would)和shall(should)一般用在构成将来时和过去将来时;Will(would)可用于一切人称。Will you be in tomorrow?I wont stay here long.Shall(should)用于第一人称做主语时的问句,用来征求对方的意见,较正式。Shall we stop over in Tokyo?Shall I help you?第23页/共90页4.情态动词情态动词主要有:can/could,may/might,must,need,dare,will/would,shall/should等。本身虽有意义,但不完整。它们表示说话人的能力、语气或情
15、态等。不能单独作谓语,必须与行为动词一起作谓语。情态动词多数没有人称和数的变化。第24页/共90页情态动词分类只作情态动词的:can(could);must;may(might)既作情态动词又作实义动词的:need;dare既作情态动词又作助动词的:will(would);shall(should)具有情态动词的某些特征的:have to;had better 第25页/共90页4.1 can的用法表示能力,意为“能、会”;表示推测,意为“可能”;(cant表示“不可能”)表示请求允许,意为“可以”。以can开头的一般疑问句,其肯定和否定回答分别用can和cant。练习:Look!The li
16、ghts in the teachers office are still on.Is Mr.Li working?No.It _ be Mr.Li.I saw him leave just now.Amay notBmustnt Ccant DneedntTrees _ fight air pollution.They are natural air conditioners.Ashould Bmust Cneed DCan注意:Could 可以用作can的过去式表示同样的意思,也可以用来代替can,使语气更加委婉,意思并无差别。第26页/共90页4.2 may 的用法表示请求、许可,意为“
17、可以”;表示猜测,意为“可能、也许”等;can与may均可用来征求意见或允许,意为“可以”,一般可互换使用;以may开头的一般疑问句,其肯定回答应用may,而其否定回答则多用mustnt,而不用may not。练习 Have you decided where to spend your summer holiday?Not yet.We _ go to Qingdao.Amust Bshould Cneed Dmay 注:Might可以用作may的过去式,表示同样的意思,might语气更不肯定一些。第27页/共90页4.3 must的用法表示“必须、应该”;表示推测,“一定”。must表示推
18、测时一般用于肯定句,在疑问句和否定句中一般应用can。区别:cant表示“不可能”,mustnt表示禁止,意为“不允许”;以must开头的疑问句,肯定回答应用must,而否定回答则常用neednt,neednt表示“不需要、不必”,相当于dont have to。Must I mop up the floor now?No,you _.AneedntBcantCshouldnt Dmustnt第28页/共90页4.4 need,dare的用法(1)need 既可作情态动词,也可作实义动词。need作情态动词时,没有人称和数的变化,后跟动词原形,主要用于否定句和疑问句中。need作实义动词时,有
19、人称、数的变化,后接带to的不定式。(need to do sth.)You neednt come to the meeting this afternoon if you have something important to do.Does she need to come?(2)dare是“敢”的意思,用法几乎与“need”完全相同,可作情态动词,也可作实义动词。How dare you say I am a fool?(你竟敢说我是个傻瓜?)He didnt dare to touch the red button.(他不敢触碰那个红色的按钮)第29页/共90页4.5 will(wo
20、uld);shall(should)用法表示建议或意愿Shall I get you some tea?我给你点茶好吗?will you close the window?I will do anything thing for you.第30页/共90页4.6 have to,had better 用法(1)have to:不得不,后加动词原形。变否定和疑问句,则需要助动词do帮助。We have to go to school.We dont have to go to school.Do you have to go to school?(2)had better:had better
21、do sth.最好做,后加动词原形。She had better go there today.否定:had better not do sth.She had better not go there today.第31页/共90页扩展比较can和be able to两者表示能力时用法相同,但can只有现在式can和过去式could两种形式,其他时态要用be able to来表示。be able to常常有“经过努力做成某件事”的意味。must和cantmust用在肯定句中表示较有把握的推测,意为“一定”。推测的否定形式用cant/couldnt表示。He must be working in
22、 his office.他一定在办公室工作呢。Mike cant have found his car,for he came to work by bus this morning.迈克一定还没有找回他的车,因为早上他是坐公共汽车来上班的。第32页/共90页have to 与 mustmust 必须,表示主观上必须做的事情,have to 不得不,表示客观上必须要的做的事情。I must study hard.I have to go to school.第33页/共90页二、动词的形式动词主要有四种形式现在式:也可称为动词原形,注意第三人称单数情况。过去式:规则动词,在现在式后面加-ed后
23、缀构成不规则动词过去分词:规则 V.S.不规则(要背!)现在分词:动词原形加-ing构成第34页/共90页三、动词的时态第35页/共90页1.一般现在时概念:表示现阶段经常或习惯发生的动作或存在的状态,或说明主语的特征。时间提示词:always,often,usually,sometimes,once a week,every day等。(1)表示经常性、习惯性的动作;He always helps others.他总是帮助别人。(2)表示现在的情况或状态;He is a teacher.他是个老师。(3)表示客观事实和普遍真理。The sun rises from the east.太阳从东
24、边升起。第36页/共90页(4)表示十分确定会发生(如安排好的事情)或按照时间表进行的事情,句子中可以用将来时间。如:The train for Haikou leaves/arrives at 8:00 in the morning.(5)人的心理活动和感官动作(不用现在进行时表达),常见动词有:like,love,hate,dislike,want,wish,hope,think(认为),understand,remember,forget,mean,need,hear,feel,see.I think it is going to snow.I really hope you can e
25、njoy your stay here.第37页/共90页2.一般过去时表示过去某时发生的动作或状态,这种动作或状态可能是一次性,也可能经常发生。表示过去具体时刻发生的一次性动作时(时间点)I got up at 6:00 this morningLittle Tom broke the window at half past nine this morning When he went into the room,he saw a stranger talking with his father表示过去一段时间内不知何时发生的一次性动作时(时间段)He came to our city in
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