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1、小學(xué)英語動詞的單三形式講解大家都知道,在一般現(xiàn)在時中,當(dāng)主語是第三人稱單數(shù)時,謂語動詞要用第三人稱單數(shù)形式,即常在動詞原形后加-s或-es。但有些同學(xué)們對于哪些主語是第三人稱單數(shù)還不十分清楚,現(xiàn)歸納總結(jié)如下:?一、人稱代詞he,she,it是第三人稱單數(shù)。如:??HelikeswatchingTV.他喜歡看電視。??Shehaslunchattwelve.她十二點(diǎn)吃午餐。??Itlookslikeacat.它看起來像只貓。二、單個人名、地名或稱呼作主語;是第三人稱單數(shù)。如:??①HanMeilookslikehermother.韓梅看起來像她的母親。??②Beij
2、ingisinChina.北京在中國。??③UncleWangoftenmakescakes.王叔叔經(jīng)常做蛋糕。三、單數(shù)可數(shù)名詞或"this/that/the+單數(shù)可數(shù)名詞"作主語時,是第三人稱單數(shù)。如:?①Ahorseisausefulanimal.馬是有用的動物。??②Thisbookisyours.這本書是你的。??③Thatcarisred.那輛小汽車是紅色的。??④ThecatisLucy's.這只貓是露茜的。?四、不定代詞someone,somebody,nobody,everything,something等及指示代詞this,that作主語時,是第
3、三人稱單數(shù)。如:??①Everyoneishere.大家到齊了。??②Thereissomethingwrongwiththewatch.這塊手表有毛病。??③Thisisapen.這是一支鋼筆。??④Thatisaneraser.那是一塊橡皮擦。五、不可數(shù)名詞作主語時為第三人稱單數(shù)。如:??①Themilkisintheglass.牛奶在玻璃杯里。??②Thebreadisverysmall.那面包很小。六、當(dāng)數(shù)字或字母作主語時,看作第三人稱單數(shù)。如:??①"6"isaluckynumber."6"是個吉利數(shù)字。??②"I"isaletter."I"是個字母。第
4、三人稱單數(shù)形式的構(gòu)成1.一般直接在詞尾加s,如:work-workslive-livesmake-makes2.以s,x,ch,sh等結(jié)尾的單詞加es,如:miss-missesfix-fixesfinish-finishesteach-teaches3.以輔音字母加y結(jié)尾的單詞,變y為i加es,如:fly-flies4.以輔音字母加o結(jié)尾的單詞,加es如:go-goesdo-does動詞單三的練習(xí)一.根據(jù)括號里單詞的適當(dāng)形式填空1.She_____(be)awriter.2.It_____(look)likeamonkey.3.We_____(go)tothep
5、ark.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_____(is)o
6、k!14.Nobody_____(be)inthepark.15.There_____(be)someoneintheclassroom.16.Thatcat_____(be)mine.17.Alittlewater_____(be)inthecup.18.Cheese_____(taste)well.19.Theletter“O”_____(look)likezero.20.“4”_____(be)abadnumberinChina.二.把下列句子改成第三人稱單數(shù)句的肯定句、否定句、一般疑問句,并做回答。1.Ilikeplayingthepinaointhemu
7、sicroom.(Tom)2.Youneedapencil-boxfornewterm.(Sam’ssister)3.Idomyhomeworkathalfpastfourintheafternoon.(she)4.Ihavebreakfastattwenty-fivepastseveninthemorning.(herfather)5.IwatchTVatquarterpastsixwithmyparents.(Tom’ssister)