第三人称单数练习.doc

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1、大家都知道，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：1.Helikescars.他喜欢车。2.Shegoestoschoolatseven.她七点去上学。3.Ithasagoodname.它有一个好名字。二、单个人名、亲朋好友等称呼作主语是第三人称单数。如：1.Patneverthrowsrubbishonthefloor.Pat从不在地板上扔垃

2、圾。2.MissWangwaterstheflowersonceaday.王老师给花一天浇水一次。3.AuntMaryusuallymakescakes.玛丽阿姨经常做蛋糕。4.Mymotherwashesthedisheseveryday.我妈妈每天都洗碗。三、第三人称单数形式的构成1.一般直接在词尾加s，如：work-workslive-livesmake-makes2.以s,x,ch,sh等结尾的单词加es,如：miss-missesfix-fixesfinish-finishesteach-teaches3.以辅音

3、字母加o结尾的单词，加es如:go-goesdo-does4.特殊变形的有：have-has四、问句：问句中遇到第三人称单数时，需要用助动词does,动词变为原形。Whatdoesshelike?Whendoeshebrushhisteeth?Howoftendoesyoursistercombherhair?练习一、将括号里动词的适当形式填入横线上。1.I________inthecorridors.(walk)2.He_________inthecorridors.(run)3.She___________herfac

4、eonceaday.(wash)4.They____________theirteethonceaday.(brush)5.You___________upyourclothesonceaday.(hang)6.We____________ourhomeworkonceaday.(finish)7.He____________rubbishintheclassroom.(throw)8.She_____________rubbishonthefloor.(throw)9.I_____________rubbishinthe

5、bin.(throw)10.They___________thetableonceaday.(set)11.Peternever_________inthecorridors.(run)12.Maryusually_________thetable.(set)13.PatandKen_________theplantsinthemorning.(water)14.Theboy__________hishaironceaday.(comb)15.MissCheng_________TVathome.(watch)16.Mys

6、ister__________hisschoolbagonceaday.(pack)17.Mymother_________dinnerforme.(cook)18.Myparents_________thehouseatChineseNewYear.(clean)19.Myteachers_________ussomegifts.(give)20.Myfriends_________thetablewithme.(set)练习二、选择正确的单词填到括号里。1.WhatdoesCandy__________(wants,w

7、ant)tobe?2.You__________(should,shouldn’t)bequietinthelibrary.3.Heshouldn’t___________(throw,throws)rubbishonthefloor.4.Peter___________(help,helps)hismotherathome.5.Shenever_________(run,runs)inthecorridors.6.Weshould__________(walks,walk)inthecorridors.7.He_____

8、____(don’t,doesn’t)getupearly.8.Howoften__________(do,does)yourfathergotobed?练习三、将下列句子改成第三人称He的句型（看例句）例句：Ibrushmyteethonceaday.----改：Hebrusheshisteethon