仁爱英语七年级上第一单元知识点ppt课件

.,Reviewunit1,.,Grammar,1.be动词的用法,2.Be动词使用口诀：,_我用am,你用are,is连着他她它。,主语是第一人称I时，be动词用am主语是you（你，你们），they（他们，她们，它们）或复数名词时，be动词用are主语是单数名词、不可数名词或三单人称时，be动词用is。,.,1.I_fromAustralia.2.Helen_astudent.3.JaneandTom_myfriends.4.Myparents_verybusyeveryday.5.I_anEnglishteachernow.6.Where_youfrom?7.Thelight_green.8.Mynameis_LiDong.9._theyyournewfriends?10.I_aboy._youaboy?No,I_not.11.Thegirl_Jackssister.12.Thedog_tallandfat.13._yourbrotherintheclassroom?14.Where_yourmother?She_athome.15.Whosedress_this?16.That_myredskirt.17.Who_I?,.,18.Gaoshansshirt_overthere.19.Mysistersname_Nancy.20.This_notWangFangspencil.21._DavidandHelenfromEngland?22.We_friends.23.She_ateacher.I_agirl.24.Manycats_inmyhouse.25.Hismother_fat(胖的）.26.He_inClass4,Grade1.27.What_yourname?28.These_buses.29.Whatclass_youin?30.It_acar.31.This_mybook.32.Myfather_acook.33.Jacksfriend_inClassOne.34.They_cars.35.That_herdog.,.,含be动词的肯定句变否定句,IamaChineseboy.,IamnotaChineseboy.,句型：主语+be+not+其他。即直接在be动词后加not。,含be动词的陈述句变疑问句,Wearestudents.,Areyoustudents?,句型：Be+主语+其他？一调二改三问号,注意：含be动词的一般疑问句回答用Yes或No.其结构是：Yes,主语+be动词/No,+主语+be动词+not.,.,将下列句子变成否定句和一般疑问句1.Hisbrotherisateacher.否定句:一般疑句:2.Thosearehisparents.否定句:一般疑问句:3.Im14yearsold.否定句:一般疑问句:4.Therulerisonthetable.否定句:一般疑句:5.Tomismyteacher.否定句:一般疑问句:6.Myshoesare20yuan.否定句:一般疑问句:7.Thisisapen.否定句:一般疑问句:,.,8.MynameisAndy.否定句:一般疑问句:9.Wearetwins.否定句:一般疑问句:10.Heismybrother.否定句:一般疑问句:11.Iamateacher.否定句:一般疑问句:12.Sheismymother.否定句:一般疑问句:13.ThisisMissZhao.否定句:一般疑问句:14.Sheisanewstudent.否定句:一般疑问句:15.Tomismybestfriend.否定句:一般疑问句:,.,人称代词及其所使用的Be动词,.,用Iyouhesheitthey的适当形式填空,_amaboy,and_isagirl._arestudent._favoritecolorisblue._isacutedog.Ilove_verymuch.,.,a和an的区别,1.a用在以辅音音素开头的单词前。例如：abook，adesk,2.an用在以元音音素开头的单词前。例如：anegg，anapple,你知道吗？,a/an被称作不定冠词，用在单数可数名词前，表达某一个人或事物中的一个，相当于汉语的“一”，但不强调数目概念。a/an用法的区别：,.,()1.HanMeimeiis_Chinesegirl.Lucyis_Englishgirl.A.a;aB.an;anC.a;anD.an;a()2.Alittleboywrote(写）_“U”and_“n”onthewall.A.a;anB.an;aC.an;anD.a;a()3_oldladyinbrownis_Englishteacher.A.An;aB.An;/C.The;anD.The;a(4).Mrs.Smithis_friendof_A.the;mineB.a;meC.the;myD.a;mine()5.Thisis_egg._eggisbig.A.a;AB.an;AnC.a;TheD.an;The()6.Mr.Wangis_uncle.,.,可数名词复数变形规则：(1)在一般情况下直接在词尾加-s;例如:deskdeskspenpenspencilpencilscarcarsappleapplesteacherteachersegg-eggsname-names,你知道吗,.,(2)以-s,-x,-ch,-sh结尾的单词在词尾加-es,读/iz/;例如:boxboxes(盒子）busbuses（公共汽车）watchwatches(手表）classclasses(班级）,.,(3)以f或fe结尾的名词变复数，把f或fe变成v,再加-es，-ies，读/vz/.,life-liveswife-wivesleaf-leavesthief-thieves,(4)以辅音字母+y结尾的名词变成复数时，变y为-i，+es，-ies。读/iz/afamilythreefamilies,.,（5）以O结尾的词，加-s或-es，读/z/特例：两人两菜真英雄hero-heroesnegro-negroespotato-potatoestomato-tomatoes,.,名词单数变复数填空,1:orangebedcomputerapplehousetreelessonappleshirt2.pianophotoradiozootomatopotato3.classfoxwatchglassdressclassbrushboxbus4.shelfknifewifelife.leafthief5.familycountryarmycitystorybabybutterflycountry6toy.playdaykeyboy,.,单句变复句,主语thisthese,thatthose,Iwe,he/she/itthey.Be(am,is)are把不定冠词a/an去掉疑问词，介词短语，物主代词都不变名词单数变复数,WhatsthisinEnglish?Itsabook.WhataretheseinEnglish?Theyarebooks.,.,句子单数变复数1Thisisabook._2:Thatisaneraser._3:Itisaredapple._4:Iamaboy._5:He/Sheisateacher._6:Whatsthis?_五：名词复数变单数练习1.Thosearemyfriends._2:TheyareEnglishboys._3:Theyaresomeerasers._4:Thesearedictionarie