一般现在时精讲.ppt

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1、一般现在时一般现在时动词：1.be动词动词(is,am,are)2.情态动词（情态动词（can,shall）3.行为动词（行为动词（run,speak,call,say.）、概念：、概念：经常、反复发生的动作或存在的状态经常、反复发生的动作或存在的状态及现在的某种状态。及现在的某种状态。1、肯定式、肯定式1)主语主语+be(am/is/are)+表语表语 I am a student.It/She/He is a teacher.You/They are classmates.2)主语主语+情态动词（情态动词（can,shall）I can speak English.、构成形式、构成形式:3

2、).主语主语+行为动词（行为动词（speak，say，call，go,run.）1)I speak English.2)She/He/It speaks English.3)They call me Tom.4)He runs very fast.注意：在一般现在时态的肯定句注意：在一般现在时态的肯定句中，当主语是第三人称单数中，当主语是第三人称单数（she,he,it），行为动词要加），行为动词要加-s或者或者-es2.一般现在时态的否定和疑问式(1).Be动词She is a student.变否定：She is not a student.变一般疑问句：Is she a student?

3、肯定否定回答：Yes,she is.No,she isnt.（2）.情态动词e.g.She can speak Chinese.变否定：She cant speak Chinese.变一般疑问：Can she speak Chinese?肯定否定回答：Yes,she can.No,she cant.(3)行为动词 e.g.I run very fast.变否定句：I dont run very fast.变一般疑问：Do you run very fast?肯定否定回答：Yes,I do.No,I dont.e.g.She likes Maths.变否定句：She doesnt like Ma

4、ths.变一般疑问：Does she like Maths?肯定否定回答：Yes,she does.No,she doesnt.注意：在一般现在时态中，当谓语动词注意：在一般现在时态中，当谓语动词是行为动词的时候，变否定和一般疑问是行为动词的时候，变否定和一般疑问句时，要借助助动词句时，要借助助动词dodo和和doesdoes帮忙。当帮忙。当主语是第三人称单数主语是第三人称单数(she,he,it)(she,he,it)的的时候用时候用doesdoes，其他人称用，其他人称用do.do.借助助动借助助动词词dodo和和doesdoes以后，动词要用动词原形。以后，动词要用动词原形。、一般现在时

5、态的用法：、一般现在时态的用法：、表示目前或现在存在的状态或特征.e.g.She is often late.、表示客观存在及普遍真理。e.g.The earth is round.、表示现在经常和习惯性发生的动作，常与 sometimes,often,usually,always,everyday 等时间状语连用。.、就单词的正确形式填空就单词的正确形式填空1.He _ (look)tired.2.The earth_ (go)round the sun.3._(may)I have your pen?4.Practice _ (make)perfect.5.They usually_ (c

6、ome)to school earlier.6.Class_ (begin)at eight every morning.7.When he _ (come),well go out to meet him.8.How _(be)your father?9.There _(be)a school there.looksgoesMaymakescomecomesbeginsisisn n1.He (look)tired.n n2.The earth_ (go)round the sun.n n3._(may)I have your pen?n n4.Practice _ (make)perfec

7、t.n n5.They usually_ (come)to school earlier.n n6.Class_ (begin)at eight every morning.looksgoesMaymakescomebegins一、一、写出下列动词第三人称单数的变化形式be have comego stay teach write take study watch fly play二、将下列句子变成否定式和一般疑问句二、将下列句子变成否定式和一般疑问句二、将下列句子变成否定式和一般疑问句二、将下列句子变成否定式和一般疑问句 1Her name is Li Ling.2We go to scho

8、ol at night.3My brother works in a factory.Her name isnt Li Ling.Li Ling.Is she Li Ling?Is she Li Ling?We dont go to school at nightgo to school at nightDo you go to school at night?Do you go to school at night?My brother brother doestdoest work in a radio factory.work in a radio factory.Does your b

9、rother works in a radio factory?Does your brother works in a radio factory?She can play basketball.She cant play basketball.Can she play basketball?三、单项选择三、单项选择 1.The Browns_a nice car and Browns brother _ a nice jeep.A.have,have B.has,has C.have,has D.has,have2.If their house_not like ours,what_ it

10、 look like?A.is,is B.is,does C.does,does D.does,is3.-_ you think he will come?-If it _ tomorrow,he will not come.A.Do,rains B.Are,rains C.Do,will rain D.Are,will rain4.The little child_ not even know that the moon _ around the earth.A.do,move B.do,moves C.does,moves D.did,moved、Homework 1The buses _

11、(use)a lot of oil.2Each of us _(have)strong points and weak points3My daughter_(watch)TV every day.4.Sometimes she _(see)a film on Sunday.5Li Wei_(have)a daughter.She_（stay）in a nursery（托儿所）.6.She _(be)a teacher.7.I_(be)a student.8.She can _(sing)a song.9.He usually runs in the morning.(变否定和一般疑问句10.I speak Chinese.(变否定和一般疑问句)11.There is a bed in this room.(变否定和一般疑问句)Thank You Good bye!