be动词的用法常见的be动词形式：amisare口诀：我(I)用am,你，你们(you)用are,is跟着他(he)，她(she)，它(it)单数is例如：Thisisapen.Theboyisverylovely.复数are例如：Wearestudents.Theyareinthepark.ThegirlsarefromEngland.be动词的否定形式：amnot,isnot=isnt,arenot=arent含有be动词的陈述句变为否定句：在be动词后面加not含有be动词的陈述句变为一般疑问句：将be动词提到句首。例如：Heisagoodboy.Isheagoodboy?Theyareintheschool.Aretheyintheschool?Thisisabook.Isthisabook?Themanisadoctor.Isthemanadoctor.注意：Iam/weare变疑问句时要换成areyou.Iamhungry.Areyouhungry?Wearegoodfriends.Areyougoodfriends?练一练：一、在下面的短文中填上恰当be动词。Iagirl.MynameMary.IinClass2,Grade7.I12yearsold.Heremyfamilyphoto.Look!Thesemyparentsandthosemygrandparents.Thisboymybrother.He15yearsoldnow.Thatmycat,Mimi.Itverylovely.二、在下面的题目中填上恰当的Be动词。1. IfromAustralia.2. Sheastudent.3. JaneandTommyfriends.4. Myparentsverybusyeveryday.5. Iatschool.6. Heatschool.7. Westudents.8. TheyfromChina.9. YangLingelevenyearsold.10. Whereyourfriends?11. Howoldyoulastyear?12. Whichdogyours?13. Tenandtwotwelve.14. Iastudent.15. Youadoctor.16. shefromJinan?17. youAmerican?18. Thoseoranges.19. Theycars20. yourmotherinChina?21. yourfriendsinNewYork?22. Whathername?23. Wherehermother?24. Howoldyourteacher?25. Whatclassyouin?三、句型转换模仿Eg.Thatisabook.否定句：Thatisnotabook.一般疑问句：Isthatabook？回答：Yes,itis./No,itisnt.1. Thisisacoat.否定句：一般疑问句：回答：2. Iamastudent.否定句：一般疑问句：回答：3. Youareastar.否定句：一般疑问句：回答：4. Theseareapples.否定句：一般疑问句：回答：5. Itisabeautifulflower.否定句：一般疑问句：回答：6. Theyareplayingfootball.否定句：一般疑问句：回答：7. Themanisinthebedroom.否定句：一般疑问句：回答：8. HisuncleisleavingforBeijing.否定句：一般疑问句：回答：9. Mymotherisateacher.否定句：一般疑问句：回答：10. Iamgoingtotravelaroundtheworld.否定句：一般疑问句：回答：知识点巩固：be动词的用法常见的be动词形式：,口诀：我(I)用伤，你们(you)用,跟着他(he)，她(she)，它(it)单数例如：Thisisapen.Theboyisverylovely.复数例如：Wearestudents.Theyareinthepark.ThegirlsarefromEngland.be动词的否定形式：amnot,isnot=,arenot=含有be动词的陈述句变为否定句：在be动词后面加not含有be动词的陈述句变为一般疑问句：将be动词提到句首。注意：Iam/weare变疑问句时要换成缩写：=thesearethosere=thatishes=sheisits=theyareisnt=arenotwhos=whoare