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英语动词的单三形式讲解在一般现在时中，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。哪些主语是第三人称单数呢？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：①PeterwatchesTVat9:30.Peter总是在9:30看电视.②BeijingisinChina.北京在中国。③Myfatherofteneatsdinnerat7:00.我爸爸常常7:00吃晚饭.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：①6isaluckynumber.6是个吉利数字。②Iisaletter.I是个字母。第三人称单数形式的构成1.一般直接在词尾加s，如：want-wantslike-likesread-readsplay-playseat-eats2.以s,x,ch,sh等结尾的单词加es,如：watch-watchesteach-teachesmiss-missesfix-fixes3.以辅音字母加o结尾的单词，加es如:go-goesdo-does4.以辅音字母加y结尾的单词，变y为i加es,如：fly-fliesstudy-studies附加:have--has一、写出下列动词的第三人称单数形式1.work_______2.find____3.clean________4.write_______5.teach_________6.wash__________7.play_______8.read________9.go__________10.do__________11.fly________12.study________13.drink_______14.cry_______15.have________16.sit____17.swim_____18.draw______19.make____20.run_____21.carry_____22.leave_____23.arrive____24.watch_____25.clean____26.walk_____27.stay_____28.jump____29.come_____30.pass_____31.stand_____32.like______33.love_____34.smile_____35.laugh____36.know_____37.speak______38.wear____39.look____40.drive_____41.have____42.eat____43.buy____44.point_____45.live_____46.say____47.want____48.talk_____49.learn_____50.count____51.take____52.dance____53.stay_____54.need____55.pack_____56.help_____二、根据括号里单词的适当形式填空1.She_____(be)awriter.2.It_____(look)likeamonkey.3.We_____(go)tothepark.4.He_____(go)toschool.5.Amy_____(like)eatingfruits.6.Hebei_____(be)nexttoShandong.7.Ourteacher_____(be)talkingwithJohn.8.Whosebook_____(be)this?9.Dogs_____(be)ourfriends.10.Thatblackboard_____(be)clean.11.Thedesk_____(be)Tom’s.12.Somebody_____(do)herhomework.13.Everybody_____(be)OK!14.Nobody_____(be)inthepark.15.There_____（be）someoneintheclassroom.16.Unclewangofen_____(watch)TVathome.17.SometimesBob_____(read)bookinthebookshop.18.He_____（eat）breakfastinthemorning.19.Ken_____(have)mathclassonTuesday.20.“4”_____(be)abadnumberinChina.21.Heoften________(have)dinnerathome.22.We_______(notwatch)TVonMonday.23.Nick_______(notgo)tothezooonSunday.24.______they________(like)theWorldCup?25.What_______theyoften_______(do)onSaturdays?26._______yourparents_______(read)newspaperseveryday?27.Thegirl_______(teach)usEnglishonSundays.28.SheandI________(take)awalktogethereveryevening.9.There________(be)somewaterinthebottle.29.Mike_______(like)cooking.30.They_______(have)thesamehobby.31.Myaunt_______(look)afterherbabycarefully.32.Youalways_______(do)yourhomeworkwell.33.I_______(be)ill.I’mstayinginbed.34.She_______(go)toschoolfromMondaytoFriday.35.LiuTao_______(do)notlikePE.36.Thechildoften_______(watch)TVintheevening.37.SuHaiandSuYang_______(have)eightlessonsthisterm.38.He________TVeveryevening.(watch)39.John________likehisfather.(look)40、I________inthecorridors.(walk)41、He_________inthecorridors.(run)42、She___________herfaceonceaday.(wash)43、They____________theirteethonceaday.(brush)44、You___________upyourclothesonceaday.(hang)45、We____________ourhomeworkonceaday.(finish)