大学英语全新版第三册第4单元

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1、BR-mainBeforeReading1.StoryofExtraterrestrials’InvadingEarthListentotheStoryQuestionsabouttheStory2.BackgroundInformation3.Warm-upExercisesIssacAsimovVenusTheSolarSystemSpaceExplorationUSFederalGovernmentBR1.11ListentotheStory■BR1.21QuestionsabouttheStoryHo

2、wdidtheEarthlingsfightagainsttheinvasionoftheAn-vils?Weretheysuccessful?Theyfoughtwithbullets,ordinarybombs,super-atombombs,gasesandbacteria,buttheyfailed.BR1.22QuestionsabouttheStory2.WhatwasKnowallbyprofession?Whattricksdidheusetodriveawaytheinvaders?Wash

3、esuccessful?Knowallwasapsychiatrist,adoctortreatingmentalillness.AtfirsthefilledtheAn-vilswithhumanemotionssothattheywouldfighteachother.Hedidn’tsucceed.Thenhemadethemfeelhomesick.Thistimehistrickworked.BR1.23QuestionsabouttheStory3.HowcomealltheAn-vilsrose

4、upfromEarthatagivensignalonedayandflewbacktotheirownstar?Theyweremadetofeelhomesick,astrongdesiretoflybacktowheretheyhadstarted.BR2.1IssacAsimovIssacAsimov(1920~1992)wasaRussian-bornAmericanwriterandscientist.Hewasadistinguishedbiochemist,butismorewidelykno

5、wnastheauthorofmanyworksofsciencefiction,booksonsciencefornon-scientists,andessaysonawidevarietyofsubjects.Amonghisbest-knownsciencefictionisI,Robot(1950)andtheFoundationtrilogy(1951~1953).BuildingonKarelCapek’sconceptoftherobot,in1941Asimovcoinedthetermrob

6、otics.■BR2.2■BR2.3TheSolarSystemThenineplanetsinthesolarsystemareplacedinorderofmassinthefirstpicture.Thenumbersinthefirstpictureindicatetheirpositionsinthesolarsystem.Dragthenumberstotheircorrespondingplanets.StartBR2.3.1Jupiter木星Neptune海王星Earth地球Saturn土星V

7、enus金星Uranus天王星Mars火星Mercury水星Pluto冥王星key123456789SUNBR2.3.11123456789SUNBR2.3.12123456789SUNBR2.3.13123456789SUNBR2.3.14123456789SUNBR2.3.15123456789SUNBR2.3.16123456789SUNBR2.3.17123456789SUNBR2.3.18123456789SUNBR2.3.19123456789SUNBR2.3.-keyMercuryVenusEa

8、rthMarsJupiterSaturnUranusNeptunePlutoSUNBR2.4.mainSpaceExploration1.Introduction2.Soviet/RussianSpaceProgram3.USSpaceProgram4.China’sFirstManinSpaceBR2.4.1IntroductionSpaceexplorationwasmadepossibleby