Unit5Unit5EducationalEducationalexchangesexchangesGrammarGrammarAThepresentperfecttense•WeusethepresentperfecttensetotalkaboutthingsthathappenedinthepastbuthaveaconnectiontothepresentinsomewayI/You/We/TheyhavemadehavenotmadealotofnewfriendsHaveI/you/we/theymadeYes,No,I/you/we/theyhavehavenotalotofnewfriendsHe/She/IthavemadehavenotmadealotofnewfriendsHasHe/She/ItmadeYes,No,He/She/Ithavehavenotalotofnewfriends•Workouttherule•Weformthepresentperfecttensewith_________or__________+pastparticipleofthemainverb.havehasThingstoremember•I/You/We/Theyhave=I’ve/You’ve/We’ve/They’ve•He/She/Ithas=He’s/She’s/It’shavenot=haven’thasnot=hasn’t•Thepastparticipleofaregularverbisusuallythesameasitspasttense.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–arrived•go–went--gone•ErichasbeeninBeijingforaweek.Completehisemailtohismotherwiththepresentperfecttenseoftheverbsinbrackets.•To:Mum•From:EricDearMum,I’vebeeninBeijingforaweek.I(1)__________(meet)myhostfamily.havemet•They’rereallyfriendly.MyhostbrotherWeiandI(2)_____________(play)alotoffootballataparknearhishome.Webothenjoyfootballverymuch.Mrs.Li,myhostmother,(3)____________(cook)medeliciousChinesefood.haveplayedhascooked•I(4)______________(study)ChinesewithmyBritishclassmates.We(5)____________(see)someplacesofinterestinBeijingtoo.However,I(6)_______________(not,visit)theGreatWallyet,andI(7)_____________•(not,do)anyshoppingeither.Iwilldothesethingsnextweek.•Love,•Erichavestudiedhaveseenhaven’tvisitedhaven’tdone•BThepresentperfecttensewithalready,yet,everandnever•Wecanusealready,yet,everandneverwiththepresentperfecttense.•SarahhasalreadyseenmanyplacesofinterestinBeijing.•HaveyouseentheGreatWallyet?•No,IhavenotseentheGreatWallyet.•HaveyouevervisitedtheSummerPalace?•No,IhavenevervisitedtheSummerPalace.•Workouttherule•Wecanusetheadverbsalready,everandnever(before/after)have/hasand(before/after)themai...
