Unit 4 Reading and Thinking 課件-高中英語(yǔ)人教必修第三冊(cè)

UNIT4SPACEEXPLORATIONBytheendofthisperiod,youwillbeableto…1.learnaboutthedevelopmentandsignificanthistoricaleventsofspaceexploration.2.analyzethestructureofthearticleandsummarizethemainideaofthetext.3.expressyouropinionsonspaceexploration.Teachingobjectives:

“Space,thefinalfrontier.ThesearethevoyagesofstarshipEnterprise(進(jìn)取號(hào)星艦），itscontinuingmission:

toexplorestrangenewworlds,toseekoutnewlifeformsandcivilsations,toboldly（勇敢地）gowherenomanhasgonebefore.”

——JamesKirk

StarTrek星際迷航Whatdoyouthinkarethemainreasonsforspaceexploration?Pre-reading:Whatdoyouexpecttoreadaboutinthistext?A.Althoughscientiststrytomakesurenothinggoeswrong,accidentscanstillhappen.B.Theyalsoreallywishtodiscoverotherplanetsthataresuitableenoughtosupportlife. C.Thefutureofspaceexplorationremainsbright.D.Aftermanyexperiments,theysucceededinmakingrocketsthatcouldescapeEarth’sgravity.

While-reading:ChoosethecorrectsentenceA-Dtofilleachgapingroups.BDACPara1Para2Para3Para4Para5topicsentence/mainideaforeachparagraph:Para1:_______Para2:_______Para3:_______Para4:_______Para5:_______

“Arewealone?What’soutthere?”Lookingupatthestars,peoplehavealwayswantedtolearnmoreaboutspace,andscientistsworkhardtofindanswers.Theymakevehiclestocarrybravepeopleintospacetofindoutthesecretsoftheuniverse.

Theyalsoreallywishtodiscoverotherplanetsthataresuitableenoughtosupportlife._____________Para1Mainidea:

Peoplearealwayscuriousaboutspaceandscientistsworkhardtofindanswers.Beforethemid-20thcentury,mostpeoplefelttravellingintospacewasanimpossibledream.However,somescientistsweredeterminedtohelphumansrealisetheirdreamtoexplorespace.

___________

On4October1957,theSputnik1satellitewaslunchedbytheUSSRandsuccessfullyorbitedaroundEarth.Afterwards,theUSSRfocusedonsendingpeopleintospace,andon12April1961,YuriGagarinbecamethefirstpersonintheworldtogointospace.Overeightyearslater,on20July1969,AmericanastronautNeilArmstrongsteppedontothemoon,famouslysaying,“That’sonesmallstepfor[a]man,onegiantleapformankind.”Followingthis,manymoregoalswereachieved.Forexample,America’sNASAspaceagencylaunchedVoyager1on5September1977tostudydeepspace,anditstilltransmitsdatatoday.Para2Mainidea:

People’sdreamofspaceexplorationcametrueinthe20thcentury.Althoughscientiststrytomakesurenothinggoeswrong,accidentscanstillhappen.AlltheastronautsontheUSSR’sSoyuz11andAmerica’sChallengerdiedduringtheirmissions.Thesedisastersmadeeveryonesadanddisappointed,butthedesiretoexploretheuniverseneverdied.Thisisbecausepeoplebelieveintheimportanceofcarryingonspaceexplorationdespitethehugerisks.AnexampleofthisongoingworkistheInternationalSpaceStation.ItorbitsEarthandhasastronautsfromdifferentcountriesonboard,providingacontinuoushumanpresenceinspace.Para3Mainidea:

Despitethehugerisks,humansstilldesiretoexplorespace.Para4Para5

Thefutureofspaceexplorationremainsbright.

Europe,theUS,andChinaallhaveplanstofurtherstudyandexploreplanetslikeMarsandJupiter.Despitethedifficulties,scientistshopefuturediscoverieswillnotonlyenableustounderstandhowtheuniversebegan,butalsohelpussurvivewellintothefuture.1957196119691977foreigncountriesTheSputnik1satellitewaslaunchedYuriGagarinwentintospaceNeilArmstrongsteppedontothemoon.Voyager1waslaunchedWhile-reading:Readpara2and4tofindoutthemaineventshomeandabroad.WhywasspaceexplorationmainlycarriedoutbytheUSSRandtheUSinthe20thcentury?2003then(2005&2008)morerecently(2018)afterthat(2016&2017)followedby(2013)Tiangong2Tianzhou1Furtheredtheestablishmentofaspacestation.Chang'e4Exploredthesurfaceofthefarsideofthemoon.Para4Shenzhou5IndependentlysenthumansintospaceJadeRabbitStudiedthesurfaceofthemoonShenzhou6&7CompletedasecondmannedorbiandthefirstChinesespacewalkWerethespacemissionsalwayssuccessful?Ifnot,whatmighthappentospacemissions?AnexampleofthisongoingworkistheInternationalSpaceStation.ItorbitsEarthandhasastronautsfromdifferentcountriesonboard,erationThefutureofspaceexplorationremainsbright.Para5

Thefutureofspaceexplorationremainsbright.

Europe,theUS,andChinaallhaveplanstofurtherstudyandexploreplanetslikeMarsandJupiter.Despitethedifficulties,scientistshop