小学五年级一般现在时精讲和精练教案文档格式.doc
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二.构成及变化
1.be动词的变化。
肯定句:
主语+be(am,is,are)+其它。
如:
Iamaboy.我是一个男孩。
否定句:
主语+be+not+其它。
Heisnotaworker.他不是工人。
一般疑问句:
Be+主语+其它。
-Areyouastudent?
肯定回答:
-Yes.Iam./否定回答:
No,I'
mnot.
特殊疑问句:
疑问词+一般疑问句。
Whereismybike?
2.行为动词的变化。
1)、行为动词在一般现在时中的用法:
一般人称的谓语动词用原形.,但单数第三人称做主语时谓语动词词尾发生变化:
即.动词词尾加-s;
或.-es,
动词遇到单数第三人称时的表示方法
在一般现在时中,当主语是单数第三人称时,行为动词的形式是在词尾加-s或–es具体方法如下:
(1)多数动词直接加s:
runs gets likes collets takes plays climbs…….
(2)结尾是s,x,sh,ch,o,前为辅音字母,
结尾加es:
watches teaches goes does washes crosses mixes brushes
(3)动词末尾y前为辅音:
将y改为i加es:
study→studiesfly→flies
carry→carries
cry→cries
但在y前如果为元音则直接加s:
buys says
注意:
动词加-s以后的读音.
1.在[p][t][k][f]等清辅音后,发清辅音/s/eg.helps,works,likes,hates,laughs
2.在浊辅音和元音后,发浊辅音/z/eg.drives,cleans,plays
3.在[s][z][∫][]后,发/iz/eg. rises,wishes,teaches,urges
4.在[t][d]后,发/ts//dz/eg.fits,sets,needs
5.其他情况下发[z] eg.plans,cries,shows
8
2、.否定形式:
主语是第三人称单数,在行为动词前加doesn’t.行为动词变为原形。
其余人称作主语时,都在行为动词前加don’t
Helikesreadingbooks.变否定句Hedoesn’tlikereadingbooks.
Ilikeplayingfootball.变否定句Idon’tlikeplayingfootball.
3、.一般疑问句:
主语是第三人称单数的,将助动词does提前,行为动词变为原形。
其余人称作主语,将助动词do提前,句号变问号。
主语I,we变you;
some变any.
1).Helikesreadingbooks.变一般疑问句:
Doeshelikereadingbooks?
肯定回答:
Yes,hedoes.否定回答:
No,hedoesn’t.
2).Ilikeplayingfootball.变一般疑问句:
Doyoulikeplayingfootball?
肯定回答:
Yes,Ido.否定回答:
No,Idon’t.
3).Welikeniceflowers.变一般疑问句:
Doyoulikeniceflowers?
肯定回答:
Yes,wedo.否定回答:
No,wedon’t.
一般现在时的四个基本句型总结
谓语动词是be
谓语动词是do
主语是:
第三人称单数
非第三人称单数
am/is/are
does
do
肯定句
Heisateacher.
Hegoestoschooleveryday.
Theygotoschooleveryday.
否定句
Heisnotateacher.
Hedoesn’tgotoschooleveryday.
Theydon’tgotoschooleveryday.
一般疑问句
Isheateacher?
Doeshegotoschooleveryday?
Dotheygotoschooleveryday?
Yes,heis.
No,heisn’t.
Yes,hedoes.
Yes,theydo.
No,theydon’t.
特殊疑问句
Whatishe?
Whatdoeshedoeveryday?
Whatdotheydoeveryday?
一般现在时:
表示经常性的事情。
1、时间状语:
often经常,usually通常,always总是,every每个,sometimes有时,at…在几点钟
注意:
只有第三人称单数用动词三单,其余动词均用原形
三单变化:
1)、多数在动词后加s
:
play—plays
like—likes
2)、以s,x,sh,ch,o结尾的动词加es
go—goes
wash--washes
3)、以辅音字母加y结尾,把y改i再加es
fly—flies
练一练
1.Weoften___________(play)intheplayground.
2.He_________(get)upatsixo’clock.
3.__________you_________(brush)yourteetheverymorning.
4.What
(do)heusually
(do)afterschool?
5.Danny
(study)English,Chinese,math,ScienceandArtatschool.
6.Mikesometimes__________(go)totheparkwithhissister.
7.Ateightatnight,she__________(watch)TVwithhisparents.
8.________Mike________(read)Englisheveryday?
9.Howmanylessons_________yourclassmate________(have)onMonday?
10.Whattime_________hismother_________(do)thehousework?
改句子
1.Doyouoftenplayfootballafterschool?
(肯定回答)
2.Ihavemanybooks.
(改为否定句)
3.GaoShan’ssisterlikesplayingtabletennis(改为否定句)
4.ShelivesinasmalltownnearNewYork.
(改为一般疑问句)
5.IwatchTVeveryday.(改为一般疑问句)
6.Davidhasagoal.(改为一般疑问句)
7.Wehavefourlessons.(否定句)
8.Nancydoesn’trunfast(肯定句)
9.Mydogrunsfast.(否定句,一般疑问句)
10.Mikehastwolettersforhim.一般疑问句,否定句:
11.IusuallyplayfootballonFridayafternoon.否定句,一般疑问句
:
12.SuYangusuallywashessomeclothesonSaturday.
否定句:
一般疑问句:
划线提问:
13.SuYangusuallywashessomeclothesonSaturday.(划线提问)
14.Mingmingusuallywaterstheflowerseveryday
划线提问
15.Tomdoeshishomeworkathome.
划线提问:
Mr.Black
Mr.Blackteaches(教授)usEnglishthisterm(学期).Heisatallman.Helikeswearingawhiteshirtandblacktrousers.HespeaksEnglishverywell.Welikehislessons(功课)verymuch.
Hishomeisneartheschool.SometimesMr.Blackwalkstohishome.Hehastwolittlesons.Theylookthesame.Theyoftenwearthesameclothes(衣服).Helovestoseethemandplaywiththem.Mr.Blackcalls(称呼)thetwoboysDaMaoandXiaoMao.
Tickorcross
()21.Mr.BlackisourEnglishteacher.
()22.Mr.Blackisveryshort.
()23.Wedon’tlikehislessons.
()24.MaybeDaMaoandXiaoMaoaretwin