Unit4课文精读课件高中英语人教版.pptx

Unit4SpaceExploration

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“Arewealone?Whatsoutthere？”Lookingupatthestars,peoplehavealwayswantedtolearnmoreaboutspace,andscientistsworkhardtofindanswers.Theymakevehiclestocarrybravepeopleintospacetofindoutthesecretsoftheuniverse.Theyalsoreallywishtodiscoverotherplanetsthataresuitableenoughtosupportlife.

1.Lookingupatthestars,peoplehavealwayswantedtolearnmoreaboutspace,andscientistsworkhardtofindanswers.(P40)本句中有_____个谓语动词，即________________________。Looking为_________________________________________;ThinkandDiscuss一havewanted-ing分词短语作时间状语

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Beforethemid-20thcentury,mostpeoplefelttravellingintospacewasanimpossibledream.However,somescientistsweredeterminedtohelphumansrealizetheirdreamtoexplorespace.Aftermanyexperiments,theysucceededinmakingrocketsthatcouldescapeEarthsgravity.On4October1957,theSputnik1satellitewaslaunchedbytheUSSRandsuccessfullyorbitedaroundEarth.旅伴一号人造卫星

Afterwards,theUSSRfocusedonsendingpeopleintospace,andon12April1961,YuriGagarinbecamethefirstpersonintheworldtogointospace.Overeightyearslater,on20July1969,AmericanastronautNeilArmstrongsteppedontothemoon,famouslysaying,“Thatsonesmallstepfor[a]man,onegiantleapformankind.”Followingthis,manymoregoalswereachieved．Forexample,AmericasNASAspaceagencylaunchedVoyager1on5September1977tostudydeepspace,anditstilltransmitsdatatoday.美国国家航空航天局旅行者一号

不定式作后置定语的几种情况：1.被修饰词是抽象名词（ability,chance,excuse,promise,attempt,belief,way,right等）时;2.当被修饰的词前有序数词或theonly,thenext,thelast对其进行修饰时；3.被修饰词为形容词最高级或被形容词最高级修饰时；4.表示将来的动作常用动词不定式作后置定语。

1.Heisalwaysthefirst(come)andthelast_________(leave).2.Ihadachance__________(visit)theGreatWalllastmonth.3.Themosteffectiveway___________(prevent)thespreadofthediseaseistowashhandswi