《Unit 2 Learning About Language》第2課時教學課件【高中英語人教版】

Unit2HealthyLifestyleLearningAboutLanguagePeriod2人教版高中英語選擇性必修第三冊Howdoesthe“habitcycle”work?RevisionCUEROUTINEREWARDHABITCYCLEObservingandExploringWhatarethefunctionsoftheinfinitivesinthesesentences?1.Tochangebadhabitsisnevereasy.2.Topreventharmfulhabitslikethesefromdominatingateenager’slife

isessential.?todosth+linkingverb+表語

動詞不定式作主語ObservingandExploring?It+predicate（謂語）/linkingverb+...+todosth

動詞不定式作真正主語3.Ittookthesurgeonthreehourstofinishmymother’slungsurgery.4.Itwasnotpolitetodisturbyourneighbourswithloudmusiclastnight.It作形式主語WorkingoutTherulesoftheinfinitiveasthesubject動詞不定式作主語1.動詞不定式置于句首

(Not)todosth+predicate(謂語)+...e.g.Toseeistobelieve.百聞不如一見。

注意：有時也可在動詞不定式前加疑問詞。疑問詞包括疑問代詞

who\whom\what\which\whose以及疑問副詞when\where和how。

此外連接詞whether也適用。e.g.Howtobreakthebadhabitisthequestion.如何改變壞習慣是個問題。

Wheretogohasnotbeendiscussed.去哪還沒有討論。Workingout2.用it作形式主語，放在句首，把真正的主語——動詞不定式置于句后。It+predicate(謂語)+...+todosth常用句型：It+is/was+adj.+(forsb)todosth對于某人來說做某事是怎么樣的Ittakes/took/willtakesbsometimetodosth某人花費一些時間做某事e.g.Itisnecessarytoplanttreeseveryyear.每年植樹是必要的。Ittookmethreemonthstofinishthiswork.我花了三個月的時間完成這項工作。Workingout3.兩種句型之間的轉(zhuǎn)換Tochangebadhabitsisnevereasy.Itisnevereasyto

changebadhabits.主語形式主語真正主語WorkingoutThedifferencebetweentheinfinitiveasthesubjectandthegerund(動名詞)asthesubjectSmoking

isprohibitedhere.Itisnotverygoodforyoutosmokesomuch.Spittingontheground

isnotagoodhabit.Itisnotpoliteofyoutospitontheground.v-ing表示抽象動作todo表示具體動作?WorkingoutClimbingmountainsisinteresting.Toclimbthismountain

needsoureffortandpersistence.Drivingacarduringtherushhouristiring.Itwillbetiringtodrivethecartoyourhome.v-ing表示一件已知的事或經(jīng)驗todo表示未完成的事或目的?ApplyingSentencepatterntransformation.1.Workouttheproblemisnoteasy.（it作形式主語）______________________________________________________________________2.Ittookthesurgeonthreehourstofinishmymother’slungsurgery.（todo作主語）

______________________________________________________________________3.Itwasnotpolitetodisturbyourneighbourswithloudmusiclastnight.（todo作主語）

______________________________________________________________________Tofinishmymother’slungsurgerytookthesurgeonthreehours.Todisturbyourneighbourswithloudmusiclastnightwasnotpolite.It’snoteasytoworkouttheproblem.ApplyingJointhewordstomakefullsentences,andthenjointhesentencestomakeaparagraph.1.important/avoid/passivecigarettesmoking

_____________________________________________2.willtake/nutritionspecialist/abalanceddietmenu

/make/anhour/foryou__________________________________________________________________________________________Itisimportanttoavoidpassivecigarettesmoking.Itwilltakeanhourfornutritionspecialisttomakeabalanceddietmenuforyou.Applying3.useful/turnto/fitnessconsultant/foradvice

_____________________________________________4.illegal/dangerous/take/drugs_____________________________________________5.harmful/skipbreakfast/often

_____________________________________________Itisusefultoturntoafitnessconsultantforadvice.Itisdangeroustotakeillegaldrugs.Itisharmfultoskipbreakfast(too)often.ApplyingSample:Togethealthyandgetridofbadhabits,sometimesitisalsoagoodideatogetprofessionalhelp.Itwilltakeanhourforanutritionspecialisttomakeabalanceddietmenuforyou.Itisalsousefultoturntoafitnessconsultantforadvice.Youcanalsohelpyourselfwithsomecommonsense.Forexample,itisharmfultoskipbreakfasttoooften.Itisimportanttoavoidpassivecigarettesmoking.And,ofcourse,itisdangeroustotakeillegaldrugstoo.ApplyingCompletetheconversationswiththecorrectformsofphrasesinthebox.1.A:Hello,doctor.Iwanttoloseweight,butIjustcan’tseemtodoit.

Whatcanyoudotohelpme?B:Well,first,it’snecessaryto_______________whatyoueat.Cut

outallfattyfoodandsugarydrinks,andeatmorefruitandvegetables.beginwithbeincontrolofmakeachoicedecideonmakeupone’smindbeincontrolofApplyingbeginwithbeincontrolofmakeachoicedecideonmakeupone’smind2.A:Ireallyneedto

___________awaytoexercisemore.Icouldusea

fitnessapp,butmyphone’sfull.B:Sodeleteafewfiles.I’msuretheappdoesn’ttakeupmuchspace.3.A:Beforeexercising,alwaysdoafewwarm-upsto____________.B:Iknow.ButthenIalwaysfeeltootiredtocontinue!decideonbeginwithApplyingbeginwithbeincontrolofmakeachoicedecideonmakeupone’smind4.A:ShouldIgoforapizzaorthefriedchicken?Ihate_______________

likethese.Youknowwhat—I’mgoingtoeatboth!B:Wow!Don’teattoomuchjunkfood—you’llgetfat.I’veactually______________________togoonadiet,soI’lljuststicktothe

fruitsalad.makingchoicesmadeupmymindApplyingChoosethebestanswers.1.__________alanguagerequirestimeandeffort.A.LearningB.Tolearn2.Itisnotalwayseasy__________upearly.

A.toget