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系动词Be(am,is,are)的用法请记住以下口诀：我用am，你用are，is连着他，她，它；单数名词用is，复数名词全用are。变疑问，往前提，句末问号莫丢弃。变否定，更容易，be后not莫忘记。疑问否定任你变，句首大写莫迟疑。一、be动词与人称代词的搭配1、基本形式：am、are、isam第一人称I+am(注意：“I”无论何时都要大写，不管位于句首还是句中)例：Iamabeautifulgirl.Iamtwenty.are第二人称you+are;一人称复数we+are；三人称复数they+are其他复数名词+are(注意：第二人称单复数同形，都为you)例：Youaremygoodfriend.Weareinthesameclass.Theyareontheroad.Thebooksareonthedesk.is第三人称he(男)+is;she(女)+is;it(不是人)+is;其他单数名词+is例：He\Sheisagoodstudent.Itisawhitecat.Adogisonthatstreet.注意：在一般疑问回答中，肯定回答除I’m不可简写,否定回答均可简写。另：特殊疑问句中：where\how\who\what\why+be动词+人称代词或名词？例：Whatisyourname?MynameisGaoBuHan.肯定否定——be动词后加not一般疑问——be动词移到主语前一般疑问回答肯定和否定Iam…=I’m….Iamnot…=I’mnotAmI…?Yes,I’m.No,I’mnot.Youare…=you’reYouarenot…=Youaren’t…Areyou…?Yes,youare.No,youaren’t.She\He\Itis…=She\He\Itisnot…=She\He\Itisn’t…Isshe\he\it…?Yes,she\he\itis.No,she\he\itisn’t.Weare=We’reWearenot…=Wearen’t…Arewe…?Yes,weare.No,wearen’t.Theyare=They’reTheyarenot…=Theyaren’tArethey…?Yes,theyare.No,theyaren’t.Whereareyou?I’mintheclassroom.三.适当形式填空.15September10this_____(teacher)day.16Mypencilisblack,whatabout_____(your)?17_____(do)yourmotherlovethem?18Myfavoritevegetable_____(am)carrotsandtomatoes.19Thesearenine_____(potato).20Thisissome_____(milk).21There_____(is)manyphotosofmyfamily.一．用be动词适当的词填空。1.I________fromAustralia.2.She_______astudent.3.JaneandTom______myfriends.4.Myparent___verybusyeveryday.6.I______anEnglishteachernow.7.Where_________youfrom?10.Thelight_________green.11.Myname____LiDong.I__twelve.12._________theyyournewfriends?13.I____aboy.____youaboy?No,I_____not.14.Thegirl______Jack'ssister.15.Thedog_______tallandfat.16.___yourbrotherintheclassroom?17.Where_____yourmother?She______athome.18.Whosedress______this?19.That______myredskirt.20.Who______I?21.Sometea______intheglass.22.Gaoshan'sshirt_____overthere.23.Mysister'sname______Nancy.24.This______notWangFang'spencil.25.___DavidandHelenfromEngland?26We____friends.27.She___ateacher.28.I___agirl.29.Manyants____inmyhouse.30.Hismother____fat.31.He_____inClass4,Grade1.32.What_____yourname?33.These_____buses.34.Whatclass_____youin?35.It_____acar.36.Helen____astudent.37.This_____mybook.38.Myfather______acook.39.Jack’sfriend____inClassOne.40.You____adoctor.41.They____cars.42.That______herdog.43.Thecat_______onthedesk.44.Thebooks_____underthetable.二.选择1.She______MissHen.A.beB.amC.is2.I______sorry.A./B.amC.are3.Here______myball.A.isB.areC.am4.You______numbereight.A.areB.isC.am5.What_______this？A.isB.areC.be6.Helen____astudent.A.beB.amC.is7.Those_____oranges.A.isB.areC.am8.Howold_____yourteacher?A.beB.amC.is9.Where_____hermother?A.areB.isC.am10.Thetwocupsofmilk_____forme.A.isB.areC.be11.EricandKathy____mystudents.A.areB.isC.am12.Yourbooks____notgood.A.isB.areC.be13.He___aboy.A.beB.amC.is14.It___mydog.A.isB.areC.be15.Whosesocks______they?A.areB.isC.am16._______thereanychairsintheclassroom.A.Is.AreC.Am17.Themanwithbigeyes_______ateacher.A.beB.amC.is18.How_______yourfather?A.isB.areC.be19.MikeandLiuTao______atschool.A.areB.isC.am20.I_____astudent.A.beB.amC.is21.They______teachers.A.isB.areC.be22.This_____mymother.A.areB.isC.am23._____youastudent?Yes,Iam.A.AmB.IsC.Are24.Thejam_____goodformygrandma.A.isB.areC.be三.写出下列词适当形式:1.Iam(缩略形式)______2.is(复数)______3.weare(缩略形式)______4.arenot(缩略形式)______5.isnot(缩略形式)______6.cannot(缩略形式)______7.she's(完整形式)______8.it's(完整形式)______9.they're(完整形式)______10.don't(完整形式)______三.将下列句子变成否定句和一般疑问句1.Hisbrotherisateacher.否定句:一般疑问句:2.Thosearehisparents.否定句:一般疑问句:3.I’m14yearsold.否定句:一般疑问句:4.Therulerisonthetable.否定句:一般疑问句:5.Tomismyteacher.否定句:一般疑问句:6.Myshoesare20yuan.否定句:一般疑问句:7.Thisisapen.否定句:一般疑问句:8.MynameisAndy.否定句:一般疑问句:9.Wearetwins.否定句:一般疑问句:10.Heismybrother.否定句:一般疑问句:11.Iamateacher.否定句:一般疑问句:12.Sheismymother.否定句:一般疑问句:13.ThisisMissZhao.否定句:一般疑问句:14.Sheisanewstudent.否定句:一般疑问句:15.Tomismybestfriend.否定句:一般疑问句:一、用am,is,are填空1.I______aboy.______youaboy?No,I_____not.2.Thegirl______Jack'ssister.3.Thedog_______tallandfat.4.Themanwithbigeyes_______ateacher.5.______yourbrotherintheclassroom?6.Where_____yourmother?She______athome.7.How_______yourfather?8.MikeandLiuTao______atschool.9.Whosedress______this?10.Whosesocks______they?11.That______myredskirt.12.Who______I?13.Thejeans______onthedesk.14.Here______ascarfforyou.15.Here______somesweatersforyou.16.Thetwocupsofmilk_____forme.17.Sometea______intheglass.18.Gaoshan'sshirt_______overthere.19.Mysister'sname______Nancy.20.This______notWangFang'spencil.21.______DavidandHelenfromEngland?22.There______agirlintheroom.23.There______someapplesonthetree.24._______thereanykitesintheclassroom?25._______thereanyapplejuiceinthebottle?26.There_______somebreadontheplate.27.There_______aboy,twogirls,threemenandtenwomeninthepark.28.You,heandI______fromChina.二、用be动词的适当形式填空1.I_______atschooljustnow（刚才）.2.He________atthehotellastweek.3.We________studentstwoyearsago.4.They________onthefarmamomentago(刚才).5.YangLing________elevenyearsoldlastyear.6.There________anappleontheplateyesterday.7.There________somemilkinthefridgeonSunday.8.Thephone_______onthesofayesterdayevening.9.I______anEngli