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 I mYouare You reSheis She sHeis He sItis It sWeare We reTheyare They re 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 isn t arenot aren t 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 I m Iamyou re we re they re you we theyarehe s she s it s he she itisisn t isnotaren t arenot 例句 一 be动词一般现在时的否定句 1 Iamnotastudent 2 Youaren tgoodatswimming 3 Simonisn ttall 二 一般疑问句及其肯定回答和否定回答1 AmItheteacher Yes youare No youaren t 2 AreyougoodatEnglish Yes Iam Yes weare No I mnot No wearen t 3 IsSimontall Yes heis No heisn t 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 wearen t 2 Wearen tgoodfriends 巩固练习 SimonandSandyareclassmates 1 AreSimonandSandyclassmates Yes theyare No theyaren t 2 SimonandSandyaren tclassmates Herhairislong 1 Isherhairlong Yes itis No itisn t 2 Herhairisn tlong Millieistalkingtohernewfriends Completetheirconversationwiththecorrectformsoftheverb tobe 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 yougoodatEnglish Sandy Sandy No I Is isn t is Are amnot Homework Reviewthesimplepresenttenseabout tobe