Unit4+Space+exploration+Discovering+Useful+Struc高中英語人教版（2019）必修第三冊

DiscoveringUsefulStructuresLeadinHowmanyinfinitivesarethereinthesentence?tohelptoexplorespaceScientistsweredeterminedtohelphumansrealisetheirdreamtoexplorespace.realise231Teachingobjectives:Bytheendofthisperiod,youwillbeableto…1.identifyandanalyzetheusageofinfinitivesasadverbialsandattributes;2.mastertheusageofinfinitivesasadverbialsandattributesthroughself-studyandpractice.3.useinfinitivestodescribespacefactsandeffortstoexplorespace.ReviewThetextismainlyaboutthedevelopmentofthespace.ReadtofindUnderlineallthesentenceswithinfinitivesinthetext

ineachparagraph.

eg:

"Arewealone?What'soutthere?"Lookingupatthestars,peoplehavealwayswantedtolearnmoreaboutspace,andscientistsworkhardtofindanswers.Theymakevehiclestocarrybravepeopleintospacetofindoutthesecretsoftheuniverse.BTheyalsoreallywishtodiscoverotherplanetsthataresuitableenoughtosupportlife.Readtofind"Arewealone?What'soutthere?"【①

Lookingupatthestars,peoplehavealwayswantedtolearnmoreaboutspace,andscientistsworkhardtofindanswers.】【②Theymakevehiclestocarrybravepeopleintospacetofindoutthesecretsoftheuniverse.】B【

③Theyalsoreallywishtodiscoverotherplanetsthataresuitableenoughtosupportlife.】Para.1Beforethemid-20thcentury,mostpeoplefelttravelingintospacewasanimpossibledream.【④However,somescientistsweredeterminedtohelphumansrealisetheirdreamtoexplorespace.】

DAftermanyexperiments,theysucceededinmakingrocketsthatcouldescapeEarth'sgravity.On4October1957,theSputnik1satellitewaslaunchedbytheUSSRandsuccessfullyorbitedaroundEarth.Afterwards,theUSSRfocusedonsendingpeopleintospace,andon12April1961,【⑤YuriGagarinbecamethefirstpersonintheworldtogointospace.】Para.2Overeightyearslater,on20July1969,AmericanastronautNeilArmstrongsteppedontothemoon,famouslysaying,"That'sonesmallstepfor[a]man,onegiantleapformankind."Followingthis,manymoregoalswereachieved.Forexample.【

⑥America'sNASAspaceagencylaunchedVoyager1on5September1977tostudydeepspace,anditstilltransmitsdatatoday.】A⑦【Althoughscientiststrytomakesurenothinggoeswrong,accidentscanstillhappen.】AlltheastronautsontheUSSR'sSoyuz11andAmerica'sChallengerdiedduringtheirmissions. Para.3

【⑧Thesedisastersmadeeveryonesadanddisappointed,butthedesiretoexploretheuniverseneverdied.】Thisisbecausepeoplebelieveintheimportanceofcarryingonspaceexplorationdespitethehugerisks.AnexampleofthisongoingworkistheInternationalSpaceStation.ItorbitsEarthandhasastronautsfromdifferentcountriesonboard,providingacontinuoushumanpresenceinspace. Para.4China'sspaceprogrammestartedlaterthanthoseofRussiaandtheUS,butithasmadegreatprogressinashorttime.【⑨Chinabecamethethirdcountryintheworldtoindependentlysendhumansintospacein2003,】whenYangLiweisuccessfullyorbitedEarthintheShenzhou5spacecraft.ThenShenzhou6and7completedasecondmannedorbitandthefirstChinesespacewalk,followedbythevehicle⑩

JadeRabbitbeingsenttothemoontostudyitssurface.Afterthat.ChinalaunchedtheTiangong2spacetabintospaceandTianzhou1todockwithit.【?ThissignalledonestepfurtherinChina'splantoestabishaspacestationinthefuture.】

【?Morerecently,ChinahassentChang'e4toexplorethesurfaceofthefarsideofthemoontomakemeasurementsandobservations.】Para.5CThefutureofspaceexplorationremainsbright.Europe,theUS,and【?ChinaallhaveplanstofurtherstudyandexploreplanetslikeMarsandJupiter.】

?【Despitethedifficulties.scientistshopefuturediscoverieswillnotonlyenableustounderstandhowtheuniversebegan,butalsohelpussurvivewellintothefuture.】Para.6AnalyzetoIdentify1.Lookingupatthestars,peoplehavealwayswantedtolearnmoreaboutspace,andscientistsworkhardtofindanswers.→____________________________________________________

Example:...inorderthattheycouldfindtheanswers.

infinitivesasadverbialstoexpresspurposesAnalyzetoidentify&compare

2.

Theyalsoreallywishtodiscoverotherplanetsthataresuitableenoughtosupportlife.→__________________________________________________

3.YuriGagarinbecamethefirstpersonintheworldtogointospace.→___________________________________________________Analyzetoidentify&compare

…sothattheycouldsupportlife.

infinitiveastheadverbialtoshowtheresult…thefirstpersonintheworldwhowentintospace.

infinitivesasattributestomodifysth.moreconcise&logical1.Analyzeallthesentencesyouhavefindtochoosesentenceswithinfinitivesasattributeoradverbial2.putthechosensentences’numberintothefollowingboxes.Analyzetoidentify

AnalyzetoidentifySummarize1.n/pron+todo(thefirst...todo)modify2.doAtodoBshowpurposeadj./adv.+enoughtodoshowresultPracticethefirst...todo...Usethefirsttodo...todescribe...eg:IamthefirstteachertoteachEnglishheretoday!PracticeinfinitiveasattributeOnesmallstepforman,onegiantleapformankind.NeilArmstrongisthefirstperson

tolandonthemoon.NeilArmstrong?Igotothegym

tostayhealthy.A:“Whydoyougotothegym？”B:“Igotothegym

tostayhealthy.”Makeadiologue

withtodoasadverbial

example:Practiceinfinitiveasadverbial1.Scientistsworkhardtofind

answers.2.

Theymakevehiclestocarry

bravepeopleintospacetofindout

thesecretsoftheuniverse.3.

America’sspaceagencylaunchedVoyager1tostudydeepspace.4.Morerecently,ChinahassentChang’e4toexplore

thesurfaceofthefarsideofthemoon.Completethepassagewiththecorrectformsoftheverbsinbrackets.

Sendingpeopletootherplanetsorevenbeyondthesolarsystemisnotaneasygoal1._________(achieve).Oneoftheproblemsisthatthetripwouldtakeaverylongtime.Forexample,2._______(use)currenttechnology,itwouldtakeovertwoyears3._____(get)totheclosestplanet,Mars,andback.Althoughlightisthefastestthing4.______(know)intheuniverse,itcouldtakemorethanfouryearstoreachtheneareststarsystem.Willscientistsfigureoutaway5.________(store)sufficientfoodandwaterforthelongjourney?Isitpossibletotravelfasterthanlight?Nooneknowstheanswersyet.However,spacescientistsnevergiveup.Theyareexperimentingwithgro