Unit1Art不定式作表语语法课件-高中英语人教版选择性

不定式作表语选修3Unit1DoyouknowwhathappenedtoMixue?ExampleDiscussionDiscusswithyourpartnerthefunctionoftheitalicizedinfinitives.Mixue’sambitionistorunaninternationalbranch分店inNewYork.Myplanistoraiseenoughmoneyandretire

intwoyears'time.不定式作表语结构Myplanistoraiseenoughmoneyandretire.系动词todo不定式动词不定式可以放在be和become,sound,taste等系动词后面作表语，由“(to)+动词原形”构成。情形1Mypart-timejobistoguidethetravelers.主语和表语“等价＝”的情形。toguidethepatients为parttimejob的内容todo不定式作表语表示主语的职业，职责，性质等。翻译句子我们的职责就是照顾好老人。Ourdutyistotakegoodcareoftheelderly.情形2Themainjobofthezookeeperistolookafterthemwell.Mywishistotravelaroundtheworld.当主语是aim,purpose,idea,intention,plan,wish,decision,choice等名词时，常用todo不定式作表语说明名词的内容。翻译句子他的梦想是让身边的人幸福健康。Hisdreamistomakepeoplearoundhimjoyfulandhealthy.情形3Whatstrikesmemostistoseesuchunfairresult.Whatmademefailistoignorethefact.当主语时what引导的名词性从句，用todo作表语说明其具体内容。主语从句翻译句子

他们会做的是在冬天庆祝节日。Whattheywoulddoistocelebratethefestivalinwinter.情形4YouaretocomewhenIcall.Youarenottotellalietome.

betodo表示一般将来时，含有“应该，必须”等意思，常表示义务、命令、想法、约定、可能性等。在港剧《河东狮吼》里面有这样的经典场面翻译句子你必须要鞠躬当你在日本见到比你年长或位高的人。YouaretobowwhenyoucomeacrosssomeonewhoisseniortoyouinJanpan.情形5Alltheywantedwastotakeanactivepartintheeventandcookforthebelovedstudents.当主语包含①定语从句,且先行词为②代词all,或者主语被序数词、或theonly,thelast或形容词最高级

(themost,theleast)时，其后可接“系动词+不定式”作表语定语从句(that被省略)先行词翻译句子我所能帮的最起码的事是借给她一辆车。TheleastIcandotohelpistolendheracar.Whathewantedtodowas(to)becomeaskillfulcoser.难点1主语主语部分含有行为动词do时，作表语的不定式可以省略toAllwelookforwardtodoingis(to)liveeachdaywithhope.主语行为动词do1.Somejuniorstudentsaretoblamefortheimproperbehaviors.2.Theshopistolet.难点2

不定式toblame(该受责备，应负责任)，tolet(出租)用作表语时，通常用主动表被动。Goodmedicineisbittertotaste.Thepictureispleasanttolookat.难点3系动词形容词todo动词不定式通常用主动形式表示被动意义不定式与句子的主语存在动宾(被动)关系难点4“疑问词+不定式”构成不定式短语，在句中常作主语、宾语、表语Theproblemwashowtopreventsuchaccidenthappensagain.疑问词todo难点5Toseeistobelieve.=Seeingisbelieving.动词不定式和v-ing作表语时，要注意与句子的主语在形式上保持一致保持一致Theirjobisstudyingforcollegeentranceexam.难点5Theirjobistoperformintheclassattheendof2025.V-ing动名词强调的是一般性、抽象的、经常发生的动作Todo强调的是一次性、具体的、将要发生的动作Summary结构系动词+todo情形表示主语的职业等主语是aim/idea等名词主语是what引导的名词性从句betodo主语含定语从句且先行词为all等Summary不定式的省略不定式的主动表被动疑问词+todotodo作表语和doing作表语的区别难点PARTTHREE练习巩固使用不定式作表语改写句子。

Ifyoureallywanttolearndriving,goingtoadrivingschool

mightbethebestchoice.(myadviceis...)

Ifyouwanttolearndriving,myadviceistogotoadrivingschool.example使用不定式作表语改写句子。Doingdeepbreathingexercisesfortenminutescanmakeyoufeelmorerelaxed.(Agoodwaytorelax

is...)ThisyearIhopeIcanachievemygoalofperformingaflutesolo（独奏）attheschool'sartfestival.(Mygoalthisyearis...)Agoodwaytorelax

istododeepbreathingexercisesfortenminutes.Mygoalthisyearistoperformaflutesoloattheschool'sartfestival.使用不定式作表语改写句子。Totellyouthetruth,ItakeyogaclassessimplybecauseIwanttostayinshape.(...,my

purpose...)Withhiscarstuckinthesnow:hecoulddonothingbutwaitforhelptoarrive.(..,allhecoulddowas...)Totellyouthetruth,mypurposeintakingyogaclassesistostayinshape.Withhiscarstuckinthesnow,allhecoulddowaswaitforhelptoarrive.Theyoungsinger'sintentionofperformingthesongwasThebestwaytodobusinessisWhatthesurvivorsattemptedtodowasThemainpurposeofarteducationinschoolsisTheaimofthetwoleadersattheconferencewasForahumbleperson,oneofthehardestthingsmightbeWhenyouarefacedwithaseriousdecision,mysuggestionisThemotherbelievesherdutyisAllhewantedafteratiringdaywastobuildtrustbetweenyouandyourclient.toachievepermanentpeacebetweentheirtwocountries.tobuildamemorialtotheheroeswhosavedtheirlives.tosharehisloveforrockmusic