be动词的用法(共16张PPT).ppt

,Be动词的用法,双溪九年制学校杨志鹏,be的形式,be,am,is,are,是,为，在,was,were,been,IamLiMing.IamJenny.IamfromCanada.Iamastudent.Imhere.Imsatisfiedwithyourwork.(Iam=Im),一个“我”（I）后用am，缩写形式是Im。,HeisinClassFour.SheisinClassFive.Itisabook.Myfatherisateacher.Thisisourclassroom.LiMingismyclassmate.JennyisfromCanada.,一个他/她/它后用is，缩写形式是s。,Theyaremyfriends.WearefromCanda.LiMingandJennyarefriends.JennyandIaregoodfriends.Youaremyfriend.Allofthemarefriendly.Chinesepeoplearegreat.Therearemine.,两个/你后要用are，缩写形式是re。,运用口诀1：,be的形式很多样，现在时态有三个，我（I）后am，你(you)后are，is跟着他(he)她(she)它(it)，单数is,复数are,其实用法很简单。,学以致用,1.Iamagirl.2.Youareateacher.3.Heismyfather.4.Sheisfine.5.Itisaruler.6.Hispenisred.7.Mycatisnice.8.Wearefriends.9.Theyaregoodboys.10.LiMingandLiHuaarestudents.,例句演示1,1.Youareaboy.Youarentaboy.Areyouaboy?Yes,Iam.(肯定回答不能缩写.)No,Imnot.熟能生巧：Heisateacher._.(否定句)_?(变一般疑问句)Yes,_.No,_.,例句演示2,2.Imagoodstudent.Imnotagoodstudent.Areyouagoodstudent?(变为一般疑问句时第一人称换为第二人称)Yes,Iam.(肯定回答不能缩写.)No,Imnot.现学现卖：Imadoctor._.(否定句)_？(一般疑问句)Yes,_.No,_.,例句演示3,3.Thisismykey.Thisisntmykey.Isthisyourkey?Yes,itis.(肯定回答不能缩写.)No,itisnt.注：以this,that作主语的问句，回答用Yes,itis.No,itisnt.而以these,those作主语的问句，回答用Yes,theyare.No,theyarent.触类旁通：Thesearemyclassmates._.(否定句)_?(一般疑问句)Yes,_.No,_.,运用口诀2有be句型变否定，be后not加起来有be句型一般疑问句，be动词提前加问号？肯定回答:Yes主+be,否定回答:No主+benot.isnot=isntarenot=arentIsthis.?/Isthat.?/Isit.?回答都是:肯定回答：Yes,itis.否定回答：No,itisnt.Arethese./Arethose.?/Arethey.?回答都是:肯定回答：Yes,theyare.否定回答：No,theyarent.,看一看，找规律,1.Iwasastudent2yearsago.2.Hewas15yearsoldlastyear.3.LiMingsgrandfatherwasadoctor.4.Mybestfriendwasintheclassroomjustnow.5.WewereinHanzhongyesterday.6.Theywerestudentslastyear.7.WereLiMingandDannyintheU.S.A.lastmonth?8.-WerethesestudentsinGrade7lastterm?-Yes,theywere./No,theywerent.,过去式有两个，单数后面用was，复数后面全用were.,看一看，找规律,1.IhavebeentoXianformanytimes.2.Hehasbeenherefor3years.3.-HaveyoubeentoBeijing?-Yes,Ihave.4.-HasLiMingbeenhereforalongtime?-No,hehasnt.,过去分词就一个，have/has后用been。,学以致用(用be的适当形式填空)：,1.I_lateforschoolthisevening.2._sheastudentlastyear?3.They_inNanjinglastweek.4.Ihave_inChenggufor3years.5.-_LIMinginCanda?-No,hewasnt.HewasintheU.K.6.LiMingandDanny_playingfootballontheplaygroundat3:00pm.7.He_punishedbyhisfatherjustnow.,挑战自我：用be动词填空，改为否定句和一般疑问句作肯定否定回答。1、Iagirl.2、Shemyfriend.3、JennyandLiMinggoodfriends.4、ThisanEnglishbook.5、Mymotherateacher.6、Iastudent7yearsago.7、Theboynotverygood.8、HeandIclassmates.9、Ihas_inChenggusinceI_born.10、Thesebooks_mine.11、NotonlyyoubutalsoDanny_wrongonthismatter.(2016年陕西渭南中考题),小结,1.be的形式很多样，现在时态有个，我用am，你用are，is跟着他(he)她(s