7年级上册行为动词第三人称单数的变化规则及练习各版本通用

动词第三人称单数的变化规则及练习各版本通用一．什么是第三人称单数（thirdpersonsingular）？第三人称单数（thirdpersonsingular）是指表示单数的人称，且不包括说话者和听话者。例如：He

is

astudent.Shesingsbeautifully.Ithastwolegs.二．什么是动词的第三人称单数形式？动词的第三人称单数形式是指当主语是第三人称单数（he、she、it或单个名词）时，动词需要进行相应的变化。三．形式变化：1.大部分单词可以直接在动词后:+s例：likelikes

playplays

workworks

readreads

writewrites

She

likes

cola.发音规则：所加的“s”在清辅音后，发【s】，works在浊辅音及元音后，发【z】，

plays在d后与s

一起发【dz】，reads在t后与s

一起发【ts】，writes2.以s,x,sh,ch,

结尾的动词:+es例：

watchwatches

brush

brushes

washwashes

发音规则：词尾加的“es”，发

【iz】3.以辅音+o结尾的动词:+es

例：gogoes

do

does发音规则：词尾加的“es”，发

【z】，does4.以辅音+y

结尾的动词:

变y为i+es

例：

flyflies

study

studies

carrycarries

发音规则：词尾加的“es”，发

【iz】，carries5.不规则变化：

例：

have

has6.be动词的单三形式是：isHegoeshome.Shedoeshomework.Ithastwentypages.四．重要提示：肯定句：当主语是第三人称单数时，动词的第三人称单数形式要与其保持一致。在否定句和疑问句中，也需要使用动词的第三人称单数形式，助动词does后使用动词原形。注意特殊不规则动词，如have（has）、do（does）、go（goes）等。否定形式：在否定句中，动词的第三人称单数形式在助动词does后还原为动词原形。例如：Hedoesnotplaybasketball.（他不打篮球。）Shedoesnotlikecoffee.（她不喜欢咖啡。）Thecatdoesnotchasemice.（这只猫不追逐老鼠。）JohndoesnotspeakSpanish.（约翰不会说西班牙语。）疑问形式：在含有助动词does的疑问句中，动词的第三人称单数形式还原为动词原形。例如：Doesheplaybasketball?（他打篮球吗？）Doesshelikecoffee?（她喜欢咖啡吗？）Doesthecatchasemice?（这只猫会追逐老鼠吗？）DoesJohnspeakSpanish?（约翰会说西班牙语吗？）五．需要注意的是，如果动词本身是"be"，则在否定句和疑问句中直接使用"isnot"或"arenot"，而不需要额外的助动词"do"或"does"。例如：Heisnothappy.（他不开心。）Issheastudent?（她是学生吗？）练习1.写出下列动词第三人称单数。drink________

go_______

stay________

make_______look_________have_______

pass_______

carry

________e________

watch______

plan_______

fly________

study_______

brush________

do_________

teach_______

2.用所给单词的适当形式填空。(1)

He______

(go)toschool

bybuseverymorning.(2)Jim_______

(have)manytoys.(3)

Lucy______

(study)veryhard.She______

(be)neverlateforschool.

(4)

Ken_______

(like)hisfatherverymuch.

3.单选。1.Mymotheroften________meaboutmystudies.(

)A．asks B．asking C．ask2.Mysister_______toschooleveryday.(

)A．goes B．go C．going3.Bobby________watermelonsandI________grapes.(

)A．have;has B．has;have C．have;have4.Maggieusually________TVintheevening.(

)A．watch B．watches C．watching5.Theman________inLondonandhe________English.(

)A．live;study B．islive;studies C．lives;studies6.Ioften________TVonFridayevening.Butmyfatherusually________TVonSunday.(

)A．watch;watch B．watch;watchs C．watch;watches7.写出下列动词的第三人称单数形式。【小题1】cry______【小题2】dance______【小题3】read______【小题4】put______【小题5】talk______8.Hisfatherusually______(A.goesB.go)toworkat7:00inthemorning.9.Myschools______at8:00a.m.andf______at4:00p.m.10.—Let'sgotoseeacartoon.—That______(听起来)boring.11.He________(刷)histeethinthemorning.12.Mikealways______(have)mealsontime,buthissister______(do).13.He_____(look)sohappytoday.14.Heoften_____(go)toschoolat6:45.15.Mocky,thisicbook__________(look)moreinteresting.16.WangBing______(have)anewcoat.17.Theapple________(taste)sweetandcrunchy.18.Who_______(want)togoshoppingtoday?19.Shelikes_____(sing).Sheoften_____(sing)Englishsongsforus.20.Ican_____(run)_____(fast),butshe_____(run)_____(slow).参考答案：1.drinks

goes

stays

makes

looks

has

passes

carries

es

watches

plans

flies

studies

brushes

does

teaches2.

(1)goes

(2)has

(3)studies

is

(4)likes16AABBC