不规则变化：do----doeshave----has在一般现在时中，当主语是第三人称单数时，谓语动词要用第三人称单数形式，即常在动词原形后加-s或-es。但有些同学们对于哪些主语是第三人称单数还不十分清楚，现归纳总结如下：一、人称代词he,she,it是第三人称单数。如：HelikeswatchingTV.他喜欢看电视。Shehaslunchattwelve.她十二点吃午餐。Itlookslikeacat.它看起来像只猫。二、单个人名、地名或称呼作主语；是第三人称单数。如：①HanMeilookslikehermother.韩梅看起来像她的母亲。②BeijingisinChina.北京在中国。③UncleWangoftenmakescakes.王叔叔经常做蛋糕。三、单数可数名词或"this/that/the+单数可数名词"作主语时，是第三人称单数。如：①Ahorseisausefulanimal.马是有用的动物。②Thisbookisyours.这本书是你的。③Thatcarisred.那辆小汽车是红色的。④ThecatisLucy's.这只猫是露茜的。四、不定代词someone,somebody,nobody,everything,something等及指示代词this,that作主语时，是第三人称单数。如：①Everyoneishere.大家到齐了。②Thereissomethingwrongwiththewatch.这块手表有毛病。③Thisisapen.这是一支钢笔。④Thatisaneraser.那是一块橡皮擦。五、不可数名词作主语时为第三人称单数。如：①Themilkisintheglass.牛奶在玻璃杯里。②Thebreadisverysmall.那面包很小。六、当数字或字母作主语时，看作第三人称单数。如：①"6"isaluckynumber."6"是个吉利数字。②"I"isaletter."I"是个字母。巩固练习题：I.写出下列动词的相应形式：1.第三人称单数：wash_________match_______guess______study______finish_________go________snow______carry_________2.写出下列动词的过去式：stop______see________drive________let_______carry______keep_____join______find_______think________teach______catch______3.写出下列动词的现在分词形式：stay_______begin______forget_______forget______lie________die_______run_______prefer______give________ring_______dance______hope_______II.用所给动词的适当形式填空：1.ThestudentswillgototheSummerPalaceifit_____tomorrow.A.don’trainB.doesn’trainC.won’train2.There_____anEnglishfilmnextweek.A.willhaveB.isgoingtohaveC.isgoingtobeD.wasgoingtobe3.Thepicture_______nice.A.looksB.islookedC.lookD.islooking4.She______downandsoonfellasleep.A.liveB.lainC.laidD.lay5.They_____theofficeatnineyesterdaymorning.A.reachedtoB.arrivedC.wentD.getto6.WeshallgotoShanghaionbusinessbeforeyou_____backnextweek.A.wilcomeB.cameC.wouldcomeD.come7.Don’tsmokeuntiltheplane______off.A.takesB.tookC.wastakenD.istake8.Isawher____theroomthismorning.A.toenter()B.enteredC.enterD.enters9.theteacheraskedus______toschoolontime.A.tocomeB.comingC.comeD.comes10.Johnisalways______others.A.helpB.helpingC.helpsD.tohelp11.Hetoldus______ateight.A.workingB.toworkC.workD.worked12.You’dbetter______athomeand______yourhomework.A.tostay,doB.stay,doC.tostay,todoD.stay,todo13.Hesatdown______arest.A.havingB.haveC.tohaveD.had14.UncleWangknows_______awashingmachine.A.howtomakeB.tomakeC.howmakingD.whattomake15.Jimdecided_______PollytoLingFengwhenhewasbacktoEngland.A.toleaveB.leftC.leavingD.leave一般现在时中，当主语是第三人称单数时，即常在动词原形后加-s或-es。第三人称单数变化，现归纳总结如下：1.人称代词he,she,it是第三人称单数。如：HelikeswatchingTV.他喜欢看电视。Shehaslunchattwelve.她十二点吃午餐。Itlookslikeacat.它看起来像只猫。2.单个人名、地名或称呼作主语；用第三人称单数。如：①HanMeilookslikehermother.韩梅看起来像她的母亲。②BeijingisinChina.北京在中国。③UncleWangoftenmakescakes.王叔叔经常做蛋糕。4.不定代词someone,somebody,nobody,everything,something等及指示代词this,that作主语时，第三人称单数。①Everyoneishere.大家到齐了。②Th...
