1、单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,2021/10/3,#,什么是“三单”?,“三单”是“第三人称单数”简称。,英语中第三人称与汉语中一致,为他(,he,)、她(,she,)、它(,it,)。,除此之外,详细个人或个物也是第三人称单数形式,如:,Tom,a boy,a dog,等等。,初中英语动词动词第三人称单数形式课件,第1页,1/18,我是,I,第一人称,你是,you,第二人称,我们,we,他们,they,你们,you,复数,男他,he,女她,she,物它,it,单个人名,单个事物,单个地点,第三人称,单数,初中英语动词动词第三人称单数形式课
2、件,第2页,2/18,动词第三人称单数特征,依据主语,人称,和,单复数,不一样,英语中,谓语动词,形式也有所不一样。如:,I,eat,an apple.,You,do,your homework,.,She,eats,an apple,.,He,does,his work.,如上所表示,当主语为第三人称单数时,动词要做对应改变,这就是动词“三单”形式。动词第三人称单数普通以,-s,-es,-ies,结尾。,初中英语动词动词第三人称单数形式课件,第3页,3/18,动词“三单”改变,get,make,read,live,walk,eat,eats,lives,makes,gets,reads,wa
3、lks,观察一:上述单词变形有何规律?,初中英语动词动词第三人称单数形式课件,第4页,4/18,teach,wash,catch,fix,match,guess,matches,washes,teaches,catches,fixes,guesses,观察二:上述单词变形有何特征?,初中英语动词动词第三人称单数形式课件,第5页,5/18,study,fly,try,copy,carry,identify,flies,copies,studies,tries,identifies,carries,观察三:上述单词变形有何规律?,初中英语动词动词第三人称单数形式课件,第6页,6/18,动词“三单”
4、改变规律,观察一,:,普通动词,后面直接加,-s,.,比如:,work-works,,,get-gets,,,say-says,,,read-reads,观察二:,以,ch,sh,s,x,或,o,结尾,动词,在后面加,-es,。比如:,go-goes,,,teach-teaches,,,wash-washes,,,brush-brushes,catch-catches,,,do-does,,,fix-fixes,观察三:,以辅音字母,+y,结尾,动词,把,y,变为,i,再加,-es.,比如:,study-studies,,,try-tries,,,carry-carries,,,fly-fli
5、es,,,copy-copies,初中英语动词动词第三人称单数形式课件,第7页,7/18,注意,除了上述基本规律之外,英语中还存在一些无规则第三人称单数变形。这些需要我们尤其记忆,如:,go-,goes,do-,does,have-,has,初中英语动词动词第三人称单数形式课件,第8页,8/18,练习,用所给单词适当形式完成句子。,1,、,He often _ basketball with his brother Tom.(play),2,、,Amy _ many women dancing in front of the supermarket.(watch,),3,、,My father
6、 _ to work at 7:30 every day.(go),4,、,The plane _ from Beijing to NewYork.(fly),5,、,The dog _ to jump over the fence.(try),6,、,Tina _ a sister and two brothers.(have),plays,watches,goes,flies,tries,has,初中英语动词动词第三人称单数形式课件,第9页,9/18,1.My teacher _ (speak)Chinese well.,2.She _ (love)reading.,3.Ted _(hav
7、e)a brother.,4.I _(is,am,are)a student.,用单词恰当形式填空,speaks,loves,has,am,初中英语动词动词第三人称单数形式课件,第10页,10/18,5.You _ (study)English well.,6.We _(like)singing.,7.John _ (spend)a lot of time with TV.,8.My brother _ (watch)TV every night.,study,like,spends,watches,初中英语动词动词第三人称单数形式课件,第11页,11/18,必定句变否定:,1.,找,is,a
8、m,are,can,等词。变否定更轻易,词后,not,莫忘记。,2.,添,:,动词是,原形,,动词前加,dont,动词是第三人称,(-s),在动词前加,doesnt,,动词变原形,3.,假如还有,some,在,快用,any,换过来。,初中英语动词动词第三人称单数形式课件,第12页,12/18,变否定,I am a new student.,否定:,am,am not,2.She has a toy.,否定,:,has,does,not,have,初中英语动词动词第三人称单数形式课件,第13页,13/18,3.Ted works in a school.,否定,:works,does not w
9、ork,4.He plays table tennis well.,否定:,plays,does not play,初中英语动词动词第三人称单数形式课件,第14页,14/18,5.,They can speak English,.,否定:,can,can not,6.It love eating meat.(love),否定,:loves,doesnt love,初中英语动词动词第三人称单数形式课件,第15页,15/18,7.This is an apple.,否定:,is,is not,8.Graces father spends some time with Grace.,否定:,spends,doesnt spend,初中英语动词动词第三人称单数形式课件,第16页,16/18,9.They have some new friends.,否定:,They _,new friends.,dont have any,初中英语动词动词第三人称单数形式课件,第17页,17/18,The end!,Thank you!,初中英语动词动词第三人称单数形式课件,第18页,18/18,