【课件】Unit+4Discovering+useful+strutures+课件人教版（2019）必修第三册

UNIT4SPACEEXPLORATIONDiscoveringusefulstructure1.Scientistsworkhardtofind

answers.2.Theymakevehiclestocarry

bravepeopleintospacetofindoutthesecretsoftheuniverse.3.However,somescientistsweredeterminedtohelphumansrealisetheirdreamtoexplorespace.4.YuriGagarinbecamethefirstpersonintheworldtogointospace.5.America’sNASAspaceagencylaunchedVoyager1on5September1977tostudydeepspace.6.Thesedisastersmadeeveryonesadanddisappointed,butthedesire

toexploretheuniverseneverdied.WarmingUp:Lookatthefollowingsentencesandfocusontheitalicisedinfinitives.Inpairs,discusstheirfunctionsandmeanings.目的状语目的状语定语定语目的状语定语7.Chinabecamethethirdcountryintheworldtoindependentlysend

humansintospace

in2003.8.ThissignalledonestepfurtherinChina’splantoestablishaspace

stationinthefuture.9.Morerecently,ChinahassentChang’e4toexplore

thesurfaceofthefarsideofthemoontomake

measurementsandobservations.10.Europe,theUS,andChinaallhaveplanstofurtherstudyand

explore

planetslikeMarsandJupiter.11.Despitethedifficulties,scientistshopefuturediscoverieswillnotonlyenableustounderstand

howtheuniversebegan,butalsohelpussurvivewellintothefuture.WarmingUp:定语定语目的状语定语目的状语Practice:1.Itrainedforalongtimetoflyairplanesasafighterpilot.2.Asweallknow,anastronautneedstobehealthyandcalminordertoworkinspace.3.Firstofall,youmustbeintelligentenough

togetarelatedcollegedegree.4.Somescientistsweredeterminedtohelphumansrealisetheirdreamtoexplorespace.5.On12April1961,YuriGagarinbecamethefirstpersonintheworldtogointospace.目的状语目的状语目的状语定语定语todo作状语1.Inspace,astronautscollectalldirtywatersothatitcanberecycledforlateruse.

=Inspace,astronautscollectalldirtywater________________________itforlateruse.2.Astronauts’bonesandmusclescangetveryweakinspaceduetothelackofgravity,sotheyneedtoexerciseeveryday,whichwillhelpthemstayhealthy.

=Astronauts’bonesandmusclescangetveryweakinspaceduetothelackofgravity,sotheyneedtoexerciseeveryday______________________________.Rewritethesentencesbyusinginfinitivesaspurposeadverbial.soasto/inorder

to/torecyclesoasto/inorderto/tokeephealthy3.Astronautshavetousetapetostickeverythingdownwhileworkinginspacebecauseeverythingwouldfloatoffotherwise.

=Astronautshavetousetapetostickeverythingdownwhileworkinginspace_____________________________________.

4.Duringaspacewalk,astronautshavetomoveslowlysothattheycankeeptheirbodiesundercontrol.

=Duringaspacewalk,astronautshavetomoveslowly

___________________________________________.

soasnotto/inordernotto/nottofloatoff

soasto/inorderto/tokeeptheirbodiesundercontrolSummary1.目的状语:todoinordertodosoasto(只能放句中）inorderthatsothat/so...that(只能放句中）1.为了适应太空的环境，宇航员们要接受一系列的训练。To/Inordertogetusedtotheenvironmentofspace,astronautsgothroughaseriesoftraining.Astronautsgothroughaseriesoftraininginorderto/soasto/togetusedtheenvironmentofspace.Astronautsgothroughaseriesoftrainingsothattheycangetusedtheenvironmentofspace.2.为了读懂这篇课文，他在网上查阅了很多资料。To/Inordertofigureoutthetext,hereferredtoalotofinformationonline.Hereferredtoalotofinformationonlineinorderto/soasto/tofigureoutthetext.Hereferredtoalotofinformationonlinesothathecouldfigureoutthetext.1.我写信给你是为了向你表达谢意。I’mwritingtoexpressmyappreciation/thanks/gratitudetoyou.2.我写信给你是为了邀请你参加我们学校举办的文化节。I’mwritingtoinviteyoutoattendtheculturefestivalheldbyourschool.3.我写信给你是为了告诉你这次比赛的安排。I’mwritingto

informyouofthearrangementsofthematch.4.我写信给你是为了向你表示歉意。I’mwritingtoapologize

toyou/makeanapologytoyou.5.我写信给你是为了向你征求怎样适应高中的建议。I’mwritingtoaskforsomeadviceonhowtogetusedtotheSeniorHighSchool.2.原因状语：sb.beadj.todo听说你要来中国旅游，我感到很高兴。I’mdelighted/glad

tohearthatyouwillcometoChinaforavisit.HearingthatyouwillcometoChinaforavisit,Ifeelverydelighted.听说你觉得很难适应高中的生活，我觉得很难过。I’msorry

tohearthatyoufinditdifficulttogetusedtotheSeniorHighSchool.3.结果状语水不够深不能游泳。Thewateristooshallowtoswimin.航天器够大可以容纳这些设备。Thespacecraftisbigenoughtoholdalltheequipment.他匆忙赶到火车站，结果发现火车已经开走了。Hehurriedtotherailwaystation,onlytofindthetrainhadleft.too...todo;adj.enoughtodoonlytodotodo作

定语1.In2003,YuriMalenchenkobecamethefirstpersonwhogotmarriedinspace.

=In2003,YuriMalenchenkobecamethefirstperson

______________inspace.2.Mankindhasalwaysbeencuriousabouttheuniverseandmanypeoplehavedreamedthatonedaytheywouldflyintospace.

=Mankindhasalwaysbeencuriousabouttheuniverseandmanypeoplehavedream__________space.Rewritethesentencesbyusinginfinitivesasattribute.togetmarriedtoflyinto3.ButJanisAdkinshastheabilityanddesirethathecandosomeusefulworkforthedisabled.

=ButJanisAdkinshastheabilityanddesire___________

__________forthedisabled.4.IusuallyhavealotofmeetingswhichIhavetoattend.

=Iusuallyhavealotofmeetings________.5.Weneedsomeonewhocangoandaskforadoctor.

=Weneedsomeone_____________________.6.Andersongaveherhissuggestionthatsheshouldinsistonhertask.

=Andersongaveherhissuggestion_________________.todosomeusefulworktoattendtogoandaskforadoctortoinsistonhertask

Summary:

动词不定式用作定语，放在被修饰的名词________。1.动词不定式作定语常放在名词或不定代词后面作后置定语,表示__________的动作。后面尚未发生2.名词前有_______________等词以及最高级修饰时,其后要用动词不定式。3.抽象名词________________________________________________等或不定代词_______________等后面常用不定式作后置定语。4.当名词与定语之间存在_____关系时。5.当名词与定语之间存在_____关系时。6.当名词与定语有______关系时。Shewasthefirst

Chinesewomantogotospace.first,last,next,onlyJanisAdkinshastheabilityanddesiretodousefulwork.attempt,ability,chance,desire,determination,decision,plan,waysomething,nothingSheisanicepersontoworkwith.动宾Wemustfindapersontodothejob.主谓Wegottheordertoleavethecity.同位Wehavemuchhomeworktodotonight.1.Theairport______________(complete)nextyearwillhelppromotetourisminthisarea.

(2013四川改)2.Wearehavingameetinginhalfanhour.Thedecision_________(make)atthemeetingwillinfluencethefutureofourcompany.(2012重庆)3.Volunteeringgivesyouachance_________(change)lives,includingyourown.(2013北京)4.Thestudentsarelookingforwardtohavinganopportunity_________(explore)societyofreal-lifeexperience.(2013

上海)5.Ihavealotofreadings__________(complete)beforetheendofthisterm.(2010

山东)tobecompletedtobemadetochange高考链接toexploretocompletePractice:6.Theplay______________(produce)nextmonthaimsmainlytoreflectthelocalculture.(2009安徽)7.Theability_________(express)anideaisasimportantastheideaitself.(2011湖南)8.It’simportantforthefigures____________(update)regularly.(2011北京)9.Birds’singingissometimesawarningtootherbirds______(stay)away.(2012北京)10.It’sstandardpracticeforacompanylikethisone_________(employ)asecurityofficer.(2014山东)tobeproducedtoexpressto