2019新人教高中英語選擇性必修三Unit4AdversityandCourageDiscoverUsefulStructures公開課教案Teachingaims：1.Enablestudentstomastertheusageofthepresentperfectcontinuoustense.2.Guidestudentstodistinguishthepresentperfectcontinuoustensefromthepresentperfecttense.3.Helpstudentstousethepresentperfectcontinuoustensetoexpressyourownideasintherealsituations.Teachingkeypoints:Helpstudentsidentifytheusageofthepresentperfectcontinuoustense.Instructstudentstotellthepresentperfectcontinuoustensefromthepresentperfecttense.Leadstudentstousethepresentperfectcontinuoustenseinthecontext.Teachingdifficultpoints:Howtousethepresentperfectcontinuoustenseintherealsituations.Distinguishthepresentperfectcontinuoustensefromthepresentperfecttense.Teachingprocedures:StepⅠLead-inLookatthesentenceinthepresentperfectcontinuoustense.Findmoreexamplesfromthetextandpayattentiontothepredicateverbs.Example:ThisistheadventurethatIhavebeendreamingof.Suggestedanswers:1.Wehavebeenmanagingtosurvive.2.Wehavebeenstrugglingfordays.StepⅡObserveandanalyseActivity1Observeandsummarisethefunctionofthepresentperfectcontinuoustense.1.Wehavebeenwaitingforyouforhalfanhour.我們等了你半個小時。2.IhavebeenlearningEnglishsincethreeyearsago.自從三年前以來我一直在學英語。3.IhavebeenvisitingsomecitiesofChinathismonth.這個月我一直在參觀中國的一些城市。4.Hereyesarered.It’sobviousthatshehasbeencryingforalongtime.她的眼睛紅紅的,顯然哭了很長時間。5.Shehasalwaysbeenworkinghard.她工作一直很努力。6.Toomuchhasbeenhappeningtoday.今天真是多事的一天啊。Activity2Observeandidentifythedifferencesbetweenthepresentperfectcontinuoustenseandthepresentperfecttense.1.Hehasbeenwritinganovel,whichwillbefinishednextmonth.2.Hehaswrittenanovel,whichisbeingpreparedtocomeoutnow.3.Ihavebeenvisitingmyhometownrecently,anditimpressesmedifferentlyeachtime.4.Ihavevisitedmyhometownrecently,whosechangeshaveleftadeepimpressiononme.5.Recentlyshehasalwaysbeenhelpingme.6.Recentlyshehashelpedmealot.Activity3Observeandpayspecialattentiontosomeverbs.1.Ihaveknownhimforyears.我已經(jīng)認識他好幾年了。2.Theyhavefinishedthework.他們已經(jīng)完成了這份工作。3.TherehasexistedanoldtemplesincetheMingDynasty.從明朝以來這里就有一座古廟。StepⅢPracticesandpromotionsActivity1Readeachsituationandrewriteeachsentenceusingthepresentperfectcontinuoustense.1.Thedogstartedtobarkabouttwohoursago.Ireallyhopeitwillstopsoon.2.Stevestartedtoplayrugbyattheageofeight.Nowhehasbecomeaprofessionalplayer.3.Timmyisholdingatabletennisbatandhisshorthairisdampwithsweat.Helooksalittletiredafterplayingtabletennisfortwohours.4.Dianehasn’tgotmuchsleepthisweek.Shelooksterribletoday.5.Itriedtophoneyouthismorning.ImusthavetriedadozentimesbeforeIcaughtyouhere.Suggestedanswers:1.Thedoghasbeenbarkingforabouttwohours.Ireallyhopeitwillstopsoon.2.Stevehasbeenplayingrugbysincetheageofeight.Nowhehasbecomeaprofessionalplayer.3.Timmyisholdingatabletennisbatandhisshorthairisdampwithsweat.Helooksalittletiredbecausehehasbeenplayingtabletennisfortwohours.4.Dianehasn’tbeensleepingwellthisweek.Shelooksterribletoday.5.Ihavebeentryingtophoneyouthismorning.ImusthavetriedadozentimesbeforeIcaughtyouhere.Activity2Completethesentencesbelowusingthecorrecttensesoftheverbsinbracket.Thenexplainyourreasonstoyourpartner.1.Forthewholemorning,theboardofdirectors(discuss)theresolutiontoincreasewagesinthecomingyear.

2.Jason’sonlyrecreationispainting.He(learn)howtopaintforoverfiveyears.

3.Eventhoughwelostthegame,weshouldbeproudofourselvesbecausewe(try)ourbestand(work)asateam.

4.Hefinally(finish)theresearchpaperunderhistutor’sguidance.

5.MynephewSam(collect)comicbookssincehewasfive.Nowhehasmorethantwohundredofthem.

6.Sheistired.She(type)lettersalltheafternoon.

7.He(write)aletterthismorningandsentittohisfriend.

Suggestedanswers:1.hasbeendiscussing2.hasbeenlearning3.tried;worked4.finished5.hasbeencollecting6.hasbeentyping7.wroteStepⅣLanguageUseandShareWorkinpairs.Interviewyourpartneraboutthethingsthathe/shehasbeendoing.Thefollowingquestionsmighthelp.1.Doyouhaveanyhobbiesorinterests?2.Howlonghaveyoubeenlearning/playing...?3.Whathaveyoubeendoingrecently?Suggestedanswers:A:Doyouhaveanyhobbies?B:Sure.Ihaveseveralhobbiessuchasplayingtabletennis,photographandkiteflying.Butmyfavouritehobbyisplayingtheguitar.A:Howlonghaveyoubeenlearningtheguitar?B:IhavebeenlearningtheguitarsinceIwaseightyearsold.IsawavideoofsomeoneplayingandIfellinlovewithit.A:That’sgreat.StepⅤConsolidationⅠ.Fillintheblankswiththeproperwords1.Forthepasttwoyears,Gordon’sstudents(study)waystokillbacteriainzerogravity,andtheythinkthey’reclosetoasolution(解決方案).

2.It’shardtotellexactlyhowmanypeopleagreewithhim,butresearchindicatesthatthenumbers(rise)forsometime.

3.Forweeks,I(think)ofbigger,deeperquestions:Howdowemakeitahabitforthem?Andhowdowetrainourselvestohelpthemlivewith,need,anduseless?

4.Companies(test)theirvehiclesincitiesacrossthecountry.

5.People(sit)thereandstandingthereandtakingpicturesofeachother.

6.I(farm)sheeponahillsidefor54years.Iuseasmalltractortogetabout.

7.Aretiredengineer,76-year-oldWilson(offer)freeridestocollegestudentsforthepasteightyears.

Ⅱ.GrammarclozeMywishis1.(go)toakeyuniversity.I2.(study)formanyyears.ButIampoor3.EnglishsinceIwenttojuniorschool.MyEnglishteachertoldmetoinsist4.listeningandwriting.I5