Unit2HealthyLifestyleLearningaboutLanguageDiscoverUsefulStructures課件高中英語人教版選擇性

DiscoverUsefulStructuresUnit02HealthyLifestyle新人教選擇性必修三LearningAims

Afterthisperiod,studentswillbeableto:1.Tomasterthedifferentformsanduseoftheinfinitive;2.TounderstandthedifferencesoftheInfinitiveandthegerundassubject;3.TousetheInfinitiveassubjecttodiscusshealthylifestyles.TeachingEmphases&difficulty1.Helpstudentstoexploretheuseoftheinfinitivesassubject;2.Makesurestudentsusetheinfinitivecorrectlyinspecificcontext.Lead-in1.

Tochangebadhabits

isnevereasy.2.It

tookthesurgeonthreehourstofinishmymother’slungsurgery.3.TojointhePeople’sLiberationArmy,itisrequiredformen

toshaveofftheirbeards.4.Itwasnotpolite

todisturbyourneighborswithloudmusiclastnight.TheInfinitiveactsasthesubjectofthesentence!FormalSubjectJointhewordstomakefullsentencesusingtheinfinitiveandthenJointhesentencestomakeaparagraph.Youcanaddyourownsentencesifnecessarytomakeyourparagraphmoremeaningful.

important/avoid/passivecigarettesmokingItisimportanttoavoidpassivecigarettesmoking.willtake/nutritionspecialist/abalanceddietmenu/make/anhour/foryou.Itwilltakeanutritionspecialistanhourtomakeabalanceddietmenuforyou.Lead-inuseful/turnto/fitnessconsultant/foradviceItisusefultoturntoafitnessconsultantforadvice.illegal/dangerous/take/drugsItisillegalanddangeroustotakedrugs.harmful/often/skip/breakfastItisharmfultooftenskipbreakfast.Lead-inJointhesentencestomakeaparagraph.Youcanaddyourownsentencesifnecessarytomakeyourparagraphmoremeaningful.

Togethealthyandgetridofbadhabits，sometimesitisalsoagoodideatogetprofessionalhelp.Itwilltakeanhourforanutritionspecialisttomakeabalanceddietmenuforyou.Itisalsousefultoturntoafitnessconsultantforadvice.Lead-inLead-inIt作為形式主語當(dāng)作主語的不定式結(jié)構(gòu)比較復(fù)雜時,常常用it作形式主語,而把真正的主語置于句子的后面。練一練1.Sometimesit’sbetter

（stay)calmwhenintrouble.2.Itwasfoolish

hertomakesuchamistake.3.

Itisrude

himtosaythattoalady.4.Itisdifficult

teenagerstolivealoneinaforeigncountry.tostayofoffor5.你真是粗心，把鑰匙忘在家里。________________________yourkeysathome..6.他冒那樣的危險真是太愚蠢了。_______________________suchrisks.7.媽媽擔(dān)心自己孩子的健康是很自然的。________________________________________herownchildren’shealth.

It’scarelessofyoutoleaveIt’sfoolishofhimtotakeIt’snaturalforamothertobeconcernabout練一練Thedifferencebetweentheinfinitiveandthegerund

不定式與V-ing作主語的區(qū)別不定式作主語表示一次性的、具體的、將來的或未做的動作；動名詞作主語表示一般的、抽象的、泛指的或者已經(jīng)完成的動作。__________(finish)thetaskintimeisagreatchallenge.___________(walk)afterdinnerisgoodtohealth.--WhathasmadeJannysoupset?--_______(lose)twoticketstothecinema._________(get)totheparkbybikewilltakeabout20minutes.TofinishWalkingLosingToget疑問詞+不定式可用于該結(jié)構(gòu)的疑問詞疑問代詞：who，whom，what，which疑問副詞：when，where，how常接該結(jié)構(gòu)的動詞：know，see，decide，tell，ask，consider，explain，learn，wonder特殊疑問詞+不定式在句中可以作：主語、賓語和表語1._______________theriverisstillaproblem.怎樣過橋仍然是個問題。（作主語）2.______________________hasnotbeendecided還沒有決定去哪兒露營。（作主語）3.Wehavenowidea__________________________________.我們不知道如何控制水污染。（作賓語）4.Thequestionis________________________.問題是在那里舉行這個晚會。（作表語）

HowtocrossWheretogocampinghowtocontrolthewaterpollutionwheretoholdtheparty練一練補全下面句子不定式短語作獨立成分一些不定式短語可用作獨立成分，通常位于句首，有時位于句中或句末，要用逗號同其他句子成分隔開。tobegin/startwith首先tosumup總而言之

toconclude總而言之，最后totellthetruth說實話

tobefrank坦白地說tobehonest說老實話tobebrief簡言之

Pleasefillintheblankswiththerightformofthewordsgiveninthebrackets.1.Itisreallyhardforaforeigner__________(pick)upChineseinsuchashorttime.2.It’sreallykindofyou________(help)mewithmymath.3.________(travel)totheMeiliSnow-cappedMountainMr.Jones’sdreamofthisyear.topicktohelpTotravel練一練4.Ithinkitnecessary_____________(practice)listeningandspeakingEnglisheveryday.5.Itcantakesometime___________(recover)fromtheCovid-19infection.6.InKunming,_________(miss)abusmeanswaitingfor15minutes.topracticetorecovermissing練一練Youdon’tneedtobetoldthatitisdifficult1._________(lose)weight.Or,2.________(keep)theweightoffonceyouhavedroppedthosepounds.Now,itistimeforyou3.___________(identify)thefactorsthatcauseyouroverweight.Forinstance,youmaydiscoverthatyouspendtoomuchtime4._________(be)inactive.Or,thatyoutendtoskipmealsandsnackinstead.Onceyou5._____________(figure)outtheproblem,youwillfindyourselfonestepclosertocorrectingyourissues.tolosetokeeptoidentifybeinghavefigured練一練6.________(Eat)healthyfoods,gettingenoughsleep,andexercisingregularlycanalsotheanswer.So,itisimportant7._________(make)anefforttoleadahealthylifestylewhenyouaregoingthroughatoughperiod.Theseareallthewaysyoucanchangeyourlifestylesothatyouwillfinditeasier8._________(slim)down.What’smore,byadoptingthesehealthytips,youwillnoticethatyouhaveaneasiertime9._______(keep)theweightoffaswell.So,makeitapoint10.___________(follow)theguidelinesmentionedabove.Eatingtomaketoslimtokeeptofollow練一練Completetheconversationswiththecorrectformsofthephrasesinthebox.(textbookPage17Ex.3)1.A:Hello,doctor.Iwanttoloseweight,butIjustcan’tseemtodoit.Whatcanyoudotohelpme?B:Well,first,it’snecessaryto_________________whatyoueat.Cutoutallfattyfoodandsugarydrinks,andeatmorefruitandvegetables.beincontrolofbeginwith,beincontrolof,makeachoice,decideon,makeupone’smind2.A:Ireallyneedto__________awaytoexercisemore.Icoulduseafitnessapp,butmyphone’sfull.B:Sodeleteafewfiles.I’msuretheappdoesn’ttakeupmuchspace.3.A:Beforeexercising,alwaysdoafewwarm-upsto___________.B:Iknow.ButthenIalwaysfeeltootiredtocontinue!decideonbeginwithCompletetheconversationswiththecorrectformsofthephrasesinthebox.(textbookPage17Ex.3)4.A:ShouldIgoforthepizzaorthefriedchicken?Ihate________________likethese.Youknowwhat—I’mgoingtoeatboth!B:Wow!Don’teattoomuchjunkfood-you’llgetfat,I’veactually___________________togoonadiet,soI’lljuststicktothefruitsalad.makingchoicesmadeupmymindCompletetheconversationswiththecorrectformsofthephrasesinthebox.(textbookPage17Ex.3)1A:I'mthinkingaboutridingamotorbiketoschool.Whatdoyouthink?B:Oh?Well,Ithinkit'snecessary____________________________first.Agroupofstudentsarechattingafterclass.Completetheconversationswiththecorrectformsofthephrasesinthebox.eatagoodbreakfastgetyourparents’permissionhangoutwithfriendsbalanceworkandpersonallifetogetyourparents’permission(WORKBOOKP69EX.1)toeatagoodbreakfast(WORKBOOKP69EX.1)3.A:IoftenseeyouaroundCentralPark.B:Yes,Ilike_______________________thereeveryweekend.Weusuallyplayballgames.4.A:Ihearthatthenewheadmasterhastoomanythingstodo.B:Yes.Itwillbeabigchallengeforhim____________________________________.hangingoutwithfriendstobalance(his)

workandpersonallife(WORKBOOKP69EX