八年级英语下册Module3JourneytospaceUnit2Wehavenotfoundlifeonanyotherplanetsyet第2课时课时作业新版外研版.docx

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1、优选Unit2　Wehavenotfoundlifeonanyotherplanetsyet.第二课时Ⅰ.选词填空1.Theyhaven′tarrivedinShanghai(already/yet). 2.Wehaven′tfoundlifeonany(else/other)planets. 3.(Neither/None)ofmyparentsisateacher. 4.Whichplanethas(a/an)environmentlikethatoftheearth? 5.Thepopulation

2、ofChinaislargerthan(this/that)ofJapan. 6.Heis(enoughold/oldenough)togotoschool. 7.Theyhavesentanemail(for/to)me. 8.Ourhomeis1,000metres(far/away)fromschool. 9.Doyoustillrememberthegirl(called/calling)Alice? 10.Doyouknowwho(discovered/looked)America? Ⅱ.用方框

3、中所给词语的适当形式填空。每词限用一次noneof,faraway,millionsof,municatewith,ontheearth11.Youshouldyourparentsmoreoften. 12.Therehasbeenanoldstoryhereforyears. 9/9优选13.Weshouldlivewiththeanimalsinpeacetogether. 14.Therearemanycoatsintheshop,butthemismyfavourite. 15.Thestars

4、aresothatwecan′tseethemwithoureyes. Ⅲ.句型转换16.Shehasalreadyreadthestorybook.(改为一般疑问句)shethestorybook? 17.Hewenttothemoonwithanotherastronaut.(改为现在完成时)Hetothemoonwithanotherastronaut. 18.AmyhasalreadyseenthefilmTheGathering.(改为否定句)AmyseenthefilmTheGathering

5、. 19.Tounderstandtheproblemisverydifficult.(改为同义句)verydifficultunderstandtheproblem. 20.Lisahassentmeamessage.(改为同义句)Lisahassentamessage. Ⅳ.阅读理解　　TheEuropeanSouthernObservatory(ESO)reportedthatonMay6scientistsfoundanewblackhole,anditistheclosesttotheEarth

6、now.Itisabout1,000light9/9优选yearsaway.It′ssoclosethatthetwostarsnearesttoitcanbeseenwithoutatelescope(望远镜).Athousandlightyearsmaynotseemclose.Alightyearisabout5.9trillion(万亿)miles.Butintermsof(就……来说)ourgalaxy,thisobjectisintheneighborhood.Thesecondclosest

7、blackholeisabout3,200lightyearsfromtheEarth.Blackholesareusuallytheresultofstarsthathaveburnedout.Blackholesaresohugethattheyhaveastronggravitationalpull(万有引力).Nothingcanrunawayfromthispull,notevenlight.That′swhywecan′tseethem.Scientistscanonlyfindblackho

8、lesbecauseoftheobjectsaroundthem.TheESOscientistsnoticedthestarsaroundtheblackhole.Theywerestudyingatwo-starsystemcalledHR6819.Theywatcheditformonths,mappingthestars′orbits(轨道).Thewaythestarsmovedtoldthemsomethingel