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1、人教版英人教版英语语 必修第必修第三三册册Period 3 Discovering Useful StructurePeriod 3 Discovering Useful Structure Unit 4 Space ExplorationUnit 4 Space ExplorationLookatthefollowingsentencesandfocusontheitalicizedinfinitives.Inpairs,discusstheirfunctions.Lead in-Pair work1.Itrainedforalongtimeto flyairplanesasafighter
2、pilot.(作_)2.Asweallknow,anastronautneedstobehealthyandcalmin order to workinspace.(作_)3.Firstofall,youmustbeintelligentenough to get arelatedcollegedegree.(作_)4.Somescientistweredeterminedtohelphumansrealisetheirdreamto explore space.(作_)目的状语定语目的状语目的状语Readthefollowingsentencesandfindthewordsthathave
3、beenomittedtoavoidrepetition.Definition of Ellipsis5.On12April1961,YuriGagarinbecamethefirstpersonintheworldto go into space.(作_)定语 Summary:1.不定式的结构：_2.分析上面的句子，我们知道在描述太空探索时，动词不定式不仅可以用来表_，还可以用来作_，表_。to+do原形目的定语修饰Rewritethesentencesbyusinginfinitivesasattribute.Functions of infinitives as attribute1.I
4、n2003,YuriMalenchenkobecamethefirstpersonwhogotmarriedinspace.=In2003,YuriMalenchenkobecamethefirstperson_inspace.2.Mankindhasalwaysbeencuriousabouttheuniverseandmanypeoplehavedreamedthatonedaytheywouldflyintospace.=Mankindhasalwaysbeencuriousabouttheuniverseandmanypeoplehavedream_space.togetmarried
5、toflyintoRewritethesentencesbytakingouttheunnecessaryparts.3.ButJanisAdkinshastheabilityanddesirethathecandosomeusefulworkforthedisabled.=ButJanisAdkinshastheabilityanddesire_forthedisabled.4.IusuallyhavealotofmeetingswhichIhavetoattendnextweek.=Iusuallyhavealotofmeetings_.todosometoattendusefulwork
6、Functions of infinitives as attributeRewritethesentencesbytakingouttheunnecessaryparts.5.Weneedsomeonewhocangoandaskforadoctor.=Weneedsomeone_.6.Andersongaveherhissuggestionthatsheshouldinsistonhertask.=Andersongaveherhissuggestion_.togoandaskforadoctortoinsistonhertask Summary:动词不定式用作定语，放在被修饰的名词后面。
7、1.动词动词不定式作定不定式作定语语常放在名常放在名词词或不定代或不定代词词后面作后后面作后置定置定语语,表示表示尚未尚未发发生的生的动动作作。Functions of infinitives as attribute2.名词前有first,last,next,only等词以及最高级修饰时,其后要用动词不定式。3.抽象名词attempt,ability,chance,desire,determination,decision,plan,way或不定代词something,nothing等后面常用不定式作后置定语。4.当名词与定语之间存在动宾关系时。5.当名词与定语之间存在主谓关系时。6.当名词
8、与定语有同位关系时。E.g.1.Wehavemuchhomeworktodotonight.SummaryFunctions of infinitives as attribute2.ShewasthefirstwomantowinthegoldmedalintheOlympicGames.3.JanisAdkinshastheabilityanddesiretodousefulwork.4.Sheisanicepersontoworkwith.5.Wemustfindapersontodothejob.6.Wegottheordertoleavethecity.Functions of in
9、finitives as attributeSummaryPractice(1)Theairport_(complete)nextyearwillhelppromotetourisminthisarea.(2)Doyouhaveanything_(do)tonight?(3)Thebestway_(improve)yourEnglishistojoinanEnglishclub.(4)MissLiuisaveryniceperson_(work)with.(5)Chinaisthethirdcountryintheworld_(send)menintospace.(6)Maryhadgreat
10、determination_(achieve)hergoal.tocompletetodotoimprovetoworktosendtoachievePractice(7)TheGermangirlhastheability_(learn)Chinesewell.(8)Ihavesomethingimportant_(tell)you.tolearntotellRewritethesentencesbyusinginfinitivesaspurposeadverbial.1.Inspace,astronautscollectalldirtywatersothatitcanberecycledf
11、orlateruse.=Inspace,astronautscollectalldirtywater_itforlateruse.2.Astronautsbonesandmusclescangetveryweakinspaceduetothelackofgravity,sotheyneedtoexerciseeveryday,whichwillhelpthemstayhealthy.=Astronautsbonesandmusclescangetveryweakinspaceduetothelackofgravity,sotheyneedtoexerciseeveryday_.soasto/i
12、nordersoasto/inorderto/tokeephealthyto/torecycleFunctions of infinitives as purpose adverbialRewritethesentencesbyusinginfinitivesaspurposeadverbial.3.Astronautshavetousetapetostickeverythingdownwhileworkinginspacebecauseeverythingwouldfloatoffotherwise.=Astronautshavetousetapetostickeverythingdownw
13、hileworkinginspace_.4.Duringaspacewalk,astronautshavetomoveslowlysothattheycankeeptheirbodiesundercontrol.=Duringaspacewalk,astronautshavetomoveslowly_.floatoffsoasnotto/inordernotto/nottosoasto/inorderto/tokeeptheirbodiesundercontrolFunctions of infinitives as purpose adverbialFunctions of infiniti
14、ves as purpose adverbial不定式作目的状语，常译作“_”。主要用来修饰_和形容词,也可用来修饰副词。在句中,不定式可作目的状语、原因状语、结果状语、条件状语等,可表示目的、原因及结果等。1.目的状语,置于句首或句末,置于句首时常表示强调,为加强语气。(1)置于句首时只用todo/inordertodo。如用于表示否定,用inordernottodo或soasnottodo形式。(2)不定式作目的状语可转换为sothat/inorderthat或so.that.引导的目的状语从句。Summary以便，目的是动词目的状语1.Agroupofyoungpeoplegottoge
15、thertodiscussthisquestion.2.Iwalkedquietlysoasnottodisturbthebaby.3.Heworkedveryhardtopasstheexam.Heworkedsohardthathecouldpasstheexam.Heworkedhardsothat/inorderthathecouldpasstheexam.Functions of infinitives as purpose adverbialFunctions of infinitives as purpose adverbial2.原因状语,多见于“sb.+be+adj.+tod
16、o.”结构句中。Iwasverysadtohearthenews.3.结果状语,多见于“too.to”;“enoughto.”;onlytodo(表示意料之外的结果的发生);so/such.asto(意为“如此以至于”)结构句中。Heisoldenoughtogotoschool.Imtootiredtodowell.Herushedback,onlytofindthebookmissing.SummaryPractice(1)_(workout)thedifficultmathsproblem,IhaveconsultedProfessorRussellseveraltimes.(2)_(l
17、earn)moreaboutChineseculture,JackhasdecidedtotakeChinesefolkmusicasanelectivecourse.(3)Hehurriedtothestationonly_(find)thetrainhadleft.(4)WetravelonDay2tonorthernFrance_(visit)theWorldWarbattlefields.(5)WhenthegorillasandIfrightenedeachother,Iwasjustglad_(find)themalive.(6)Joinus_(taste)avarietyoffr
18、eshlocalfood.ToworkoutTolearntofindtovisittofindtotasteMore about infinitive as purpose adverbial现在分在分词与不定式作与不定式作结果状果状语的区的区别(1)动词不定式作结果状语强调的是一种意想不到的结果。Anxiously,shetookthedressoutofthepackageandtriediton,onlytofinditdidntfit.(2)现在分词作结果状语强调的是一种顺承的,必然造成的结果。Hisfatherpassedaway,leavinghimalittlemoney.Thank you!