七年级英语上册 Unit 1 This is me Grammar课件 （新版）牛津版.ppt

Unit1,Unit1Thisisme!,Grammar,SimplePresentTense一般现在时,Lookatthesentencesandfindtherulesofsimplepresenttense.,Iamastudent.,描述客观事实,IamfromChina.我来自中国。,描述目前的事实。,Sandyismyclassmate.,Heis12yearsold.他十二岁。,描述现在的状态。,Weareinclass1.,Weareveryhappy.我们非常高兴。,英语句子的时态是指句中谓语动词在不同的时间和状况下所使用的某种动词形式。,Weusethesimplepresenttensewhenwetalkaboutfactsandstates.,一般现在时用法小结,我们常使用一般现在时描述客观事实、目前的事实和现在的状态。HeisfromNanjing.他从南京来。Leeismyfriend.李是我的朋友。Myhairislong.我是长头发。,注意,主语可以是人称代词，也可以是名词，动词be的选择要与主语相一致。Thedogisverylovely.这只小狗很可爱。Theseapplesarebigandred.这些苹果又大又红。,“be”动词的一般现在时形式有三种：am,is,are。,be动词用法口诀：“我(I)”用am,“你(you)”用are,“is用于“他(he)”、“她(she)”、“它(it)”,复数人称都用“are”。,如果主语是代词，动词be与前面主语在一起时，在非正式行文中可以缩写。如：Iam=ImYouare=YoureSheis=ShesHeis=HesItis=ItsWeare=WereTheyare=Theyre,be用法如下：,例句：1.Iamateacher.2.Youarestudents.3.Wearegoodfriends.4.Theyareonthefootballfield.5.SimonandSandyareclassmates.,6.Heisapoliteandhelpfulboy.7.Itisane-dog.8.Sandyistallandslim.9.Herhairislong.,动词be一般现在时的否定句是在be后面加not构成。动词be与not可以缩写，如：isnot=isnt;arenot=arent。,动词be一般现在时的一般疑问句是将be提前于句首构成。,缩写形式小结：Im=Iamyoure/were/theyre=you/we/theyarehes/shes/its=he/she/itisisnt=isnotarent=arenot,例句：(一)be动词一般现在时的否定句:1.Iamnotastudent.2.Youarentgoodatswimming.3.Simonisnttall.,(二)一般疑问句及其肯定回答和否定回答1.AmItheteacher?Yes,youare.No,youarent.,2.AreyougoodatEnglish?Yes,Iam./Yes,weare.No,Imnot./No,wearent.3.IsSimontall?Yes,heis.No,heisnt.,将下列句子变成(1)一般疑问句并作肯定和否定回答;(2)变成否定句。Wearegoodfriends.,(1)Areyougoodfriends?Yes,weare./No,wearent.(2)Wearentgoodfriends.,巩固练习,SimonandSandyareclassmates.,(1)AreSimonandSandyclassmates?Yes,theyare./No,theyarent.(2)SimonandSandyarentclassmates.,Herhairislong.,(1)Isherhairlong?Yes,itis./No,itisnt.(2)Herhairisntlong.,Millieistalkingtohernewfriends.Completetheirconversationwiththecorrectformsoftheverbtobe.,Millie:Hi,Sandy.Ourschool_big.Sandy:Yes,it_.Theclassrooms_bigtoo.Simon:Ourteachers_nice.MrWu_agoodteacher.,is,is,are,are,is,Sandy:_heourChineseteacher?Millie:No,he_.He_ourEnglishteacher.Simon:_y