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1、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:Heisastudent.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:likelikesplayplaysworkworksreadreadswritewritesShel
2、ikescola.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zl,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:watchwatchesbrushbrusheswashwashes发音规则:词尾加的“es”,发iz3 .以辅音+o结尾的动词:+es例:gogoesdodoes发音规则:词尾加的“es”,发zldoes4 .以辅音+y结尾的动词:变y为i+es例:flyfliesstudystudiescarrycarries发音规则:词尾加的“es”,发izLcarries5
3、 .不规则变化:例:havehas6 .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
4、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d
5、oes%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。drinkgostaymakelookhavepasscarryewatchplanflystudybrushdoteach2 .用所给单词的适当形式填空。(1) He(go)toschoolbybuseverymorning.(2) Jim(have)manytoys.(3) 1.ucy(study)veryhard.She(be)neverlateforschool.(4) Ken(like)hisfatherverymuch.3 .单选。1 .Mymoth
6、eroftenmeaboutmystudies.()A.asksB.askingC.ask2 .Mysistertoschooleveryday.()A.goesB.goC.going3 .BobbywatermelonsandIgrapes.()A.have;hasB.has;haveC.have;have4 .MaggieusuallyTVintheevening.()A.watchB.watchesC.watching5 .ThemaninLondonandheEnglish.()A.live;studyB.islive;studiesC.lives;studies6 .1oftenTV
7、onFridayevening.ButmyfatherusuallyTVonSunday.(A.watch;watchB.watch;watchsC.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5talk8 .Hisfatherusually(A.goesB.go)toworkat7:00inthemorning.9 .Myschoolsat8:00a.m.andfat4:00p.m.10 .Letsgotoseeacartoon.That(听起来)boring.11 .He(刷)histeethi
8、nthemorning.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)Englishsongsforu
9、s.20 .1can(run)(fast),butshe(run)(slow).参考答案:1 .drinksgoesstaysmakeslookshaspassescarrieseswatchesplansfliesstudiesbrushesdoesteaches2 .(1)goes(2)has(3)studiesis(4)likes16AABBCC【小题1cries【小题2】dances【小题3】reads【小题4】puts【小题5talks8.A9.startsfinishes10.sounds11.brushes12.hasdoesn,t18.wants19.singingsings20.runfastrunsslowly