小学be动词知识点

知已圆明教育培训中心英语语法二★be动词的用法【学习目标】1．学习并且掌握be动词am,are,is.2．学会使用be动词。3.掌握be动词的缩写形式及读音。任何一个句子一定由主语（Subject，简写成S）及动词（Verb，简写成V）构成。be动词不是动作，它通常与名词、形容词或其它词类一起表示主语的性质、状态、身份、特点等等。一、现在时be动词有三种，即：am,are,is。★1.如果主语是只用于第一人称I（我）时。Iam还可缩写成I'm。而am与not不缩写。如：Iamastudent.我是一名学生。Iamtenyearsold.我今年十岁。Iamnotabadboy.★2.如果主语是you（你，你们）,they（他们，它们，她们）或名词复数（两个以上的人或物）时，be动词必须用are。are与主语还可缩写。如：Weare=We're，Theyare=They're,Youare=You're。而are与not可缩写成aren't.Theyaren’ttwins(双胞胎).如：Areyoutwelve?你是十二岁吗？TomandLilyaregoodfriends.汤姆和莉莉是好朋友。Theyareatschool.他们在学校。★3.如果主语是单数名词(单个人名、地名、称呼)、不可数名词、或单数第三人称代词（he,she,it）时，be动词用is。is也可与主语缩写,如:Heis=He's,Mymotheris=Mymother's等。但是Thisis不可缩写。而is与not可缩写成isn't。Heisn’tateacher.他不是一名老师。如:Mymotherisateacher.我的妈妈是一名老师。Janeisagoodgirl.Shenzhenisbeautiful.深圳很美丽。※Be动词用法的口诀：我用am，你用are，is用于he(他),she(她),it(它)，单数名词、包括不可数名词用is，we（我们）,you（你们）,they（他们）及复数（两人以上）都用are。二、句中含有be动词的陈述句变一般疑问句把be动词提到句首，be动词要变大写。注意：第一人称变第二人称，回答时与其他一般疑问句一样，也用yes或no表示。结构：Yes,主语+be动词.No,主语+be+not。Iam…变为Areyou…my变为your.例：Iamastudent.→Areyouastudent?回答：Yes,Iam.No,Iamnot.Thatisawatch.→Isthatawatch?回答：Yes,itis.No,itisn’t.Heisagoodboy.→Isheagoodboy?回答：Yes,heis.No,heisn’t.知已圆明教育培训中心英语语法二Thereisapenonthedesk.→Isthereapenonthedesk.回答：Yes,thereis.No,thereisn’t.AmIright?回答：Yes,youare.No,youarenot.(No,youaren’t.)三、句中含有be动词的肯定陈述句变成否定句先找肯定陈述句中的be动词，在be动词后加not.Thisisanapple.→Thisisn’tanapple.Thereisapenandtwobooksonthedesk.→Thereisn’tapenandtwobooksonthedesk.四、特殊疑问句：结构：疑问词+一般疑问句。认识疑问词What什么Where在哪里Howmany多少。。（后面加名词复数）Who谁When什么时候Whattime几点钟Whose谁的Howold多少岁MynameisJane.→Whatisyourname?It’sonthedesk.→Whereismypencil-box?四、be动词的缩写形式：1．I’m=Iam.否定句：Iamnotaworker..(amnot没有缩写形式)2．It’s=Itis.He’s=Heis.She’s=Sheis.Sam’sastudent.that’s=thatisWho’s=WhoisWhere’s=Whereis.What’s=Whatis.Sam’s=Samis3．You’re=Youare.We’re=Weare.They’re=Theyare.4．there’s=thereis+名词单数there’re=thereare+名词复数5.否定：isn’t=isnotaren’t=arenot（有be动词的否定句就在be动词后面直接加not）6.don’t=donotdoesn’t=doesnothasn’t=hasnothaven’t=havenotcan’t=cannot【Practiceinclass】课堂练习be动词用法练习题1.选择正确的be动词填空。（1）I_____astudent.（2）We_____friends.（3）He_____agoodboy.（4）She______mysister.（5）They_____playingfootball.（6）You______myfriend.(7)____shefromJinan?No,she____.(8)_____youfriends?No,we____.2.be的练习：知已圆明教育培训中心英语语法二1）I______aboy.______youaboy?No,I_____not.2）Thegirl______Kangkang'ssister.3）______yourbrotherintheclassroom?4）Who______I?5）Thebooks______onthedesk.6）Mysister'sname______Jane.7）There______agirlintheroom.8）There______someapplesonthetree.9）There_______aboy,twogirls,threemenandtenwomeninthepark.10)Here_______twoapplesandonebook.3.11)_____yourfriendsinNewYork?12)What____hername?13)These_____buses.14)Those_____oranges.15)Where_____hermother?16)Howold_____yourteacher?17)Whatclass_____youin?18)This____mybrother.19)That____apencil.20)MikeandI____students.4.21)____thereanappleonthetable?Yes,there____.22)There____manybooksinthestudy.23)There____someicecreaminthefridge.24)There____apearandsomecakesonthetable.25)Thechildren___playinginthebedroom.26)Therabbits___eatinggrass.27)What___yourfavoritesubject?28)Thegirl___drawing.29)I___aletter（字母.）30.I______aboy.______youaboy?No,I_____not.5.31.Thegirl______Jack'ssister.32.Thedog_______tallandfat.33.Themanwithbigeyes_______ateacher.34.______yourbrotherintheclassroom?35.Where_____yourmother?She______athome.36.How_______yourfather?37.MikeandLiuTao______atschool.38.Whosedress______this?39.Whosesocks______they?40.That______myredskirt.6.41.Who______I?42.Thesocks______onthedesk.43.Here______abookforyou.知已圆明教育培训中心英语语法二44.Here______somesweatersforyou.45.Theblackshoes______forSuYang.46.Thispairofshoes______forYangLing.47.Thetwocupsofmilk_____forme.48.Sometea______intheglass.49.Gaoshan'sshirt_______overthere.50.Mysister'sname______Nancy.7.51.This______notWangFang'spencil.______DavidandHelenfromEngland?52.There______agirlintheroom.53.There______someapplesonthetree._______thereanykitesintheclassroom?54._______thereanyapplejuiceinthebottle?55.There_______somebreadontheplate.56.There_______aboy,twogirls,threemenandtenwomeninthepark.57.You,heandI______fromChina.三.仿照例句改写下列句子。例句：SheisinClassOne,GradeTwo.否定句：SheisnotinClassOne,GradeTwo.一般疑问句：IssheinClassOne,GradeTwo?回答：Yes,sheis.(No,sheisn’t)1.Bobisonthefootballteam.否定句：一般疑问句：回答：2.Theyareintheteacher’soffice.否定句：一般疑问句：回答：3.Itissunnytoday.否定句：一般疑问句：回答：4.Thereissomewaterinthebottle.否定句：一般疑问句：回答：5.Thereisapianointheroom.否定句：一般疑问句：回答：6.Therearemanytreesintheschool.知已圆明教育培训中心英语语法二否定句：一般疑问句：回答：7.Therearefourbottlesofmilkonthetable.否定句：一般疑问句：回答：8.Weareinterestedinpainting.否定句：一般疑问句：回答：