第页共NUMPAGES14页FunctionsTalkabouthowlongyouhavebeendoingthingsStructuresPresentperfectprogressive;Simplepasttense;PresentprogressivetenseTargetlanguage—Howlonghaveyoubeenskating?—I’vebeenskatingsincenineo’clock.—Whendidyoustartskating?—Istartedskatingatnineo’clock.StudentsareskatingattheHilltopSchool.Vocabularycollect,,marathon,skate,stamp,shell,globe,monster,particularly,runoutof,beinterestedinLearningstrategiesInducing;CooperatingUnit6Howlonghaveyoubeencollectingshells?Period1:ListeningandSpeaking(Page44)(Alison,howlonghaveyoubeenskating?)ObjectivesTolearntotalkabouthowlongyouhavebeendoingthingsTolearntousepresentperfectprogressiveProcedures■WarmingupbylearningaboutpresentperfectprogressiveHello,everyone!Weshallstartbylearningaboutgrammar,thistime,presentperfectprogressive.Lookatthefollowingexamples.Ithasbeenrainingallday,andthestreetsaretoowettogooutnow.“下了一整天的雨了，现在街道太湿了都不能出去。”（雨一直在下，到现在还在下。）Pleaseturntopagetohavealookatthegrammaraboutpresentperfectprogressive.byyourselves.Andanswerthefollowingquestions:Whatisthemeaningofpresentperfectprogressive?Whatisthestructureofpresentperfectprogressive?Howtomakenegativesentenceofpresentperfectprogressive?Howtomakegeneralquestionofpresentperfectprogressive?5.Makesentencesofpresentperfectprogressivewithverbswehavelearned?－Ihavebeenusingthiscomputer.→Howlonghaveyoubeenusingthiscomputer?→Ihavebeenusingthiscomputerfortwoyears.－ShehasbeenlearningEnglish.→HowlonghasshebeenlearningEnglish?→ShehasbeenlearningEnglishforsevenyears.1aGROUPWORKIngroupsoffourlet’saskandanswerthethreequestions:Howlongdidyousleeplastnight?→Isleptforeighthourslastnight.Whendidyoustartclasstoday?→Westartedclassateighto’clockinthemorning.Howlonghaveyoubeeninclasstoday?→Wehavebeeninclassforfourhourstoday.1bListeningandfillingListen.Areporteristalkingtotheparticipantsinaskatingmarathon.Fillinthechartonpage44.Howlong?Alison:I’vebeenskatingforfivehours.Sam:Iskatedforfourhours.Victor:I’vebeenskatingforfivehours.Celia:Iskate