学牛津版必修二Unit 1 Tales of the unexplainedgrammar课件（共44张PPT）.ppt

grammar usage thepresentperfecttense thepresentperfectcontinuoustense presentperfecttense presentperfectcontinuoustense task form have has done thepresentperfecttense parta theboyisveryhappy theboy catch abird connectionwiththepast theboycaughtabird connectionwiththepresent theboyishappy hascaught look thewindowisopen ericopenedthedoorjustnow eric alreadyopen thewindow connectionwiththepast ericopenedthewindow connectionwiththepresent thewindowisopen hasalreadyopened weusethepresentperfecttensetotalkaboutthingsthathappenedintherecentpast butareconnectedtothepresent summary 1 haslived daniel live inbeijingsincehecametochina connectionwiththepast danielcametochina connectionwiththepresent danielislivinginchina weusethepresentperfecttensetotalkaboutsomethingthatstartedinthepast andisstillhappeningnow camehaslived pastnowfuture summary 2 theboysaretired they justplay aballgame connectionwiththepast theboysplayedaballgame connectionwiththepresent theboysaretired hasjustplayed weusethepresentperfecttensetotalkaboutactionsthatwerecompletedonlyashorttimeago summary 3 iwenttoegyptin1986 iwenttoegyptin2004 i be toegypttwice havebeen wecanalsousethepresentperfecttenseforrepeatedactions summary 4 itever snow inhongkong no it never snow there hassnowed hassnowed weusethepresentperfecttensewhentheexacttimeofanactionisnotclearorimportant weuseitwithtimeexpressionssuchas already ever for just lately never recently since yet summary 5 weusealreadyforaffirmativestatementsandyetfornegativestatementsandinterrogativesentences 2 weusefor aperiodoftimeandsince apointoftime 3 structuresconnectedwiththepresentperfecttense 1 itis hasbeen aperiodoftime since clause 2 this that it isthefirst second time that clause presentperfecttense 3this that it istheonly that clause presentperfecttense 4 this that it isthebest finest mostinteresting that clause notes exercises myfriendjackhasjustsentmeane mail tellingmeabouthistravelsaroundtheworld he 1 hasjustbeen justbe toqomolangmabasecampand 2 see ayetithere heisstillveryexcitedaboutit he 3 visit thegreatpyramidinegypttoo hesaysthathe 4 love egyptbuthe 5 notvisit allthepyramidsyet he 6 swim inlochness butluckilyhe 7 nevermeet thelochnessmonster he 8 dive intheindianoceanmanytimeslookingfortreasure althoughhe 9 find manysunkenships he 10 notfind anytreasure 11 he be tothegreatwallbefore i mnotsure butihave saw hasvisited loves hasn tvisited hasswum hasnevermet hasdived hasfound hasn tfound has been presentperfectcontinuoustense partb form have has been doing theboystartedhavingdinnerfiveminutesago heisstillhavingdinnernow theboy have dinnersincefiveminutesago hasbeenhaving themanstartedworkinginthefieldhalfanhourago heisstillworkingnow theman work inthefieldforhalfanhour hasbeenworking summary1 1 weusethepresentperfectcontinuoustensetotalkaboutactionsthatstartedinthepastandarestillcontinuing ihavenotbeensleepingwellsinceireturnedhome pastpresent notbeingabletosleepwell i mstillnotsleepingwell ireturnedhome summary2 wealsousethepresentperfectcontinuoustensetotalkaboutactionsthathavejustfinishedbutarestillconnectedtothepresentinsomeway kelly sorryi mlate haveyoubeenwaitinglong mavis yes i vebeenwaitingforanhour pastonehouragopresent mavisstartedwaitingforkelly kellyarrives havebeenobserving havebeentalking havebeentaking havebeenwatching haveseen havebeenwriting 1 weusethepresentperfecttensetotalkaboutanactioncompletedintherecentpast andthepresentperfectcontinuoustenseforanactionthatstartedinthepastandisstillhappening partccomparison lijia read abookaboutstonehenge shefinishedreadingthebook lijia read abookaboutstonehenge sheisstillreadingthebook hasread hasbeenreading 2 wecanusethepresentperfecttenseforrepeatedactions andthepresentperfectcontinuoustensefornon stopactions i egyptmanytimes repeatedactions theman skate thismorning non stopaction havevisited hasbeenskating 3 weusuallyusethepresentperfecttensetoaskquestionsbeginningwithhowmanyorhowmuch andthepresentperfectcontinuoustensetoaskquestionsbeginningwithhowlong howlonghaveyoubeenswimminginthelake howmanytimeshaveyouswuminthelake 4 wecanuseeitherastateverboranactionverbwiththepresentperfecttensebutweusuallycanonlyuseanactionverbwiththepresentperfectcontinuoustense 1 shehashadthepenfor2years 2 shehaswrittenmanycompositionswiththispen 3 shehasbeenwritingcompositionswiththispen stateverb actionverb actionverb 5 weusethepresentperfecttense notthepresentperfectcontinuoustense withthewordslikenever yet alreadyandever ihavenevervisitedamerica ihavealreadybeentoamerica ihaveneverbeenvisitingamerica 1 althoughhehaslivedwithusforyears he usmuchimpression hadn tleftdidn tleavec doesn tleaved hasn tleft multiplechoice d 2 howcanyoupossiblymissthenews it ontvalldaylong hasbeenb hadbeenc wasd willbe multiplechoice a multiplechoice 3 dadandvicky married a howlongwere beingb howlong havec howlonghave beend howlongdid get c 4 theoldcouplehavebeenmarriedfor40yearsandneveronce witheachother a theyhadquarreledb theyhavequarreledc havetheyquarreledd hadtheyquarreled multiplechoice c multiplechoice 5 howlong atthejob since1990 a wereyouemployedb haveyoubeenemployedc hadyoubeenemployedd willyoubeenemployed b multiplechoice 6 iwonderwhyjenny usrecently weshouldhaveheardfromherbynow hasn twrittendoesn twritec won twrited hadn twritten a discussthedifferencesbetweenthepresentperfecttenseandthepresentperfectcontinuoustense thentickthecorrectpartaccordingtotheinformationgiven partd discussion stateverb onlyactionverbs stateverbs actionverbs makeupdialogueswiththepresentperfecttenseandthepresentperfectcontinuoustense practice inthispe