7年級(jí)上冊行為動(dòng)詞第三人稱單數(shù)的變化規(guī)則及練習(xí)各版本通用

動(dòng)詞第三人稱單數(shù)的變化規(guī)則及練習(xí)各版本通用一．什么是第三人稱單數(shù)（thirdpersonsingular）？第三人稱單數(shù)（thirdpersonsingular）是指表示單數(shù)的人稱，且不包括說話者和聽話者。例如：He

is

astudent.Shesingsbeautifully.Ithastwolegs.二．什么是動(dòng)詞的第三人稱單數(shù)形式？動(dòng)詞的第三人稱單數(shù)形式是指當(dāng)主語是第三人稱單數(shù)（he、she、it或單個(gè)名詞）時(shí)，動(dòng)詞需要進(jìn)行相應(yīng)的變化。三．形式變化：1.大部分單詞可以直接在動(dòng)詞后:+s例：likelikes

playplays

workworks

readreads

writewrites

She

likes

cola.發(fā)音規(guī)則：所加的“s”在清輔音后，發(fā)【s】，works在濁輔音及元音后，發(fā)【z】，

plays在d后與s

一起發(fā)【dz】，reads在t后與s

一起發(fā)【ts】，writes2.以s,x,sh,ch,

結(jié)尾的動(dòng)詞:+es例：

watchwatches

brush

brushes

washwashes

發(fā)音規(guī)則：詞尾加的“es”，發(fā)

【iz】3.以輔音+o結(jié)尾的動(dòng)詞:+es

例：gogoes

do

does發(fā)音規(guī)則：詞尾加的“es”，發(fā)

【z】，does4.以輔音+y

結(jié)尾的動(dòng)詞:

變y為i+es

例：

flyflies

study

studies

carrycarries

發(fā)音規(guī)則：詞尾加的“es”，發(fā)

【iz】，carries5.不規(guī)則變化：

例：

have

has6.be動(dòng)詞的單三形式是：isHegoeshome.Shedoeshomework.Ithastwentypages.四．重要提示：肯定句：當(dāng)主語是第三人稱單數(shù)時(shí)，動(dòng)詞的第三人稱單數(shù)形式要與其保持一致。在否定句和疑問句中，也需要使用動(dòng)詞的第三人稱單數(shù)形式，助動(dòng)詞does后使用動(dòng)詞原形。注意特殊不規(guī)則動(dòng)詞，如have（has）、do（does）、go（goes）等。否定形式：在否定句中，動(dòng)詞的第三人稱單數(shù)形式在助動(dòng)詞does后還原為動(dòng)詞原形。例如：Hedoesnotplaybasketball.（他不打籃球。）Shedoesnotlikecoffee.（她不喜歡咖啡。）Thecatdoesnotchasemice.（這只貓不追逐老鼠。）JohndoesnotspeakSpanish.（約翰不會(huì)說西班牙語。）疑問形式：在含有助動(dòng)詞does的疑問句中，動(dòng)詞的第三人稱單數(shù)形式還原為動(dòng)詞原形。例如：Doesheplaybasketball?（他打籃球嗎？）Doesshelikecoffee?（她喜歡咖啡嗎？）Doesthecatchasemice?（這只貓會(huì)追逐老鼠嗎？）DoesJohnspeakSpanish?（約翰會(huì)說西班牙語嗎？）五．需要注意的是，如果動(dòng)詞本身是"be"，則在否定句和疑問句中直接使用"isnot"或"arenot"，而不需要額外的助動(dòng)詞"do"或"does"。例如：Heisnothappy.（他不開心。）Issheastudent?（她是學(xué)生嗎？）練習(xí)1.寫出下列動(dòng)詞第三人稱單數(shù)。drink________

go_______

stay________

make_______look_________have_______

pass_______

carry

________e________

watch______

plan_______

fly________

study_______

brush________

do_________

teach_______

2.用所給單詞的適當(dāng)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.單選。1.Mymotheroften________meaboutmystudies.(

)A．a(chǎn)sks B．a(chǎn)sking C．a(chǎn)sk2.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.寫出下列動(dòng)詞的第三人稱單數(shù)形式?！拘☆}1】cry______【小題2】dance______【小題3】read______【小題4】put______【小題5】talk______8.Hisfatherusually______(A.goesB.go)toworkat7:00inthemorning.9.Myschools______at8:00a.m.andf______at4:00p.m.10.—Let'sgotoseeacartoon.—That______(聽起來)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).參考答案：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