八年级英语上册 Unit 5 Educational exchanges Grammar 牛津深圳版

Unit5EducationalexchangesGrammarAThepresentperfecttenseWeusethepresentperfecttensetotalkaboutthingsthathappenedinthepastbuthaveaconnectiontothepresentinsomewayI/You/We/TheyhavemadehavenotmadealotofnewfriendsHaveI/you/we/theymadeYes,No,I/you/we/theyhavehavenotalotofnewfriendsHe/She/IthavemadehavenotmadealotofnewfriendsHasHe/She/ItmadeYes,No,He/She/IthavehavenotalotofnewfriendsWorkouttheruleWeformthepresentperfecttensewith_________or__________+pastparticipleofthemainverb.havehasThingstorememberI/You/We/Theyhave=I’ve/You’ve/We’ve/They’veHe/She/Ithas=He’s/She’s/It’shavenot=haven’thasnot=hasn’tThepastparticipleofaregularverbisusuallythesameasitspasttense.Youcanfindthepastparticiplesofsomeirregularverbsonpages141and142.规则动词的过去分词和过去式一样不规则的动词过去分词见P141和P142.arrive-arrived–arrivedgo–went--goneErichasbeeninBeijingforaweek.Completehisemailtohismotherwiththepresentperfecttenseoftheverbsinbrackets.To:MumFrom:EricDearMum,I’vebeeninBeijingforaweek.I(1)__________(meet)myhostfamily.havemetThey’rereallyfriendly.MyhostbrotherWeiandI(2)_____________(play)alotoffootballataparknearhishome.Webothenjoyfootballverymuch.Mrs.Li,myhostmother,(3)____________(cook)medeliciousChinesefood.haveplayedhascookedI(4)______________(study)ChinesewithmyBritishclassmates.We(5)____________(see)someplacesofinterestinBeijingtoo.However,I(6)_______________(not,visit)theGreatWallyet,andI(7)_____________(not,do)anyshoppingeither.Iwilldothesethingsnextweek.Love,Erichavestudiedhaveseenhaven’tvisitedhaven’tdoneBThepresentperfecttensewithalready,yet,everandneverWecanusealready,yet,everandneverwiththepresentperfecttense.SarahhasalreadyseenmanyplacesofinterestinBeijing.HaveyouseentheGreatWallyet?No,IhavenotseentheGreatWallyet.HaveyouevervisitedtheSummerPalace?No,IhavenevervisitedtheSummerPalace.WorkouttheruleWecanusetheadverbsalready,everandnever(before/after)have/hasand(before/after)themainverb.Weoftenuseyetatthe(beginning/end)ofaquestionoranegativesentence.我们可以把already,everandnever放在have,has或者实义动词前或者后面。把yet放在疑问句或者否定句中，置于句子的结尾。SarahwantstoknowwhetherthestudentsfromBeijinghavevisitedanyplacesinLondonbefore.Askandanswerquestionsinpairs.Followtheexample.B1S1:HasAliceeverseenbigBen?S2:No,shehasn’t.She’sneverseenBigBen.S1:HassheevervisitedTowerBridge?S2:Yes,shehas.Shevisitedittwoyearsago.…SeeBigBenVisitTowerBridgeTouraroundBucking-hamPalaceAlice×√twoyearsago×George√(oneandahalfyearsago)××Robin×√(oneyearago×LaterSarahisaskingthestudentsfromBeijingaboutwhattheyhaveandhavenotdoneinLondon.Askandanswerquestionsinpairs.Followtheexample.B2DoshoppingSeeBigBenAlice×√George√×Robin√√S1:Haveyoudoneanyshoppingyet.Alice?S2:No,Ihaven’tdoneanyshoppingyet.S1:HaveyouseenBigBenyet?S2:Yes,I’vealreadyseenit.Morepractise1.I_______already________(see)thefilm.2.—________he__________(finish)hisworktoday?—Notyet3.—________you________(be)toHongKong?Yes,I____________(be)theretwice.haveseenHasfinishedHavebeenhavebeen4.________youever_______(eat)chocolatesundaes（圣代）?—No,never.5.Myfather______just_______(e)backfromwork.Heistirednow.6.—Where'sLiMing?—He______________(go)totheteacher'soffice.Haveeatenhascamehasgone7.SofarI______________(make)quiteafewfriendshere.8.Howlong___________theWangs__________(stay)here?—Fortwoweeks.9.IhavebeentoMacaubefore.(改为否定句)I_________________beentoMacaubefore.havemadehavestayedhavenot10.Hehasn'tetoschoolbecausehe'sill.(就划线部分提问)________________heetoschool?11.HehaslearnedEnglishfor5years.(就划线部分提问)___________________________learnedEnglish?12.Iboughtanewbikejustnow.(用just改写)I_________just________anewbike.WhyhasHowlonghashehaveboughtThankyou!