Unit2HealthyLifestyleLearningaboutLanguageDiscoverUsefulStructures課件高中英語(yǔ)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(yǔ)當(dāng)作主語(yǔ)的不定式結(jié)構(gòu)比較復(fù)雜時(shí),常常用it作形式主語(yǔ),而把真正的主語(yǔ)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(xiǎn)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(yǔ)的區(qū)別不定式作主語(yǔ)表示一次性的、具體的、將來(lái)的或未做的動(dòng)作；動(dòng)名詞作主語(yǔ)表示一般的、抽象的、泛指的或者已經(jīng)完成的動(dòng)作。__________(finish)thetaskintimeisagreatchallenge.___________(walk)afterdinnerisgoodtohealth.--WhathasmadeJannysoupset?--_______(lose)twoticketstothecinema._________(get)totheparkbybikewilltakeabout20minutes.TofinishWalkingLosingToget疑問(wèn)詞+不定式可用于該結(jié)構(gòu)的疑問(wèn)詞疑問(wèn)代詞：who，whom，what，which疑問(wèn)副詞：when，where，how常接該結(jié)構(gòu)的動(dòng)詞：know，see，decide，tell，ask，consider，explain，learn，wonder特殊疑問(wèn)詞+不定式在句中可以作：主語(yǔ)、賓語(yǔ)和表語(yǔ)1._______________theriverisstillaproblem.怎樣過(guò)橋仍然是個(gè)問(wèn)題。（作主語(yǔ)）2.______________________hasnotbeendecided還沒(méi)有決定去哪兒露營(yíng)。（作主語(yǔ)）3.Wehavenowidea__________________________________.我們不知道如何控制水污染。（作賓語(yǔ)）4.Thequestionis________________________.問(wèn)題是在那里舉行這個(gè)晚會(huì)。（作表語(yǔ)）

HowtocrossWheretogocampinghowtocontrolthewaterpollutionwheretoholdtheparty練一練補(bǔ)全下面句子不定式短語(yǔ)作獨(dú)立成分一些不定式短語(yǔ)可用作獨(dú)立成分，通常位于句首，有時(shí)位于句中或句末，要用逗號(hào)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(shuō)實(shí)話

tobefrank坦白地說(shuō)tobehonest說(shuō)老實(shí)話tobebrief簡(jiǎn)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