义务教育高中英语导学案与练习unit 4 astronomy 新人教版必修3

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1、新课标人教版Unit4Astronomy：thescienceofthestars——天文学：恒星科学核心词汇1．Doyouthinkoureducation____________(制度)needsimproving?2．The____________(气候)ofsouthernFloridaattractsthousandsoftouristseachwinter.3．Withoutpracticetherewouldbeno____________(理论)．4．Thehenwasoldanditstopped____________(下蛋)eggs.5.

2、Theidea____________(存在)onlyinthemindsofusyoungpeople.6．ProfessorLihassolvedthe____________(难题)andeveryoneischeering.7．Mars’__________(万有引力)isonlyabout38%ofEarth’s.8．Raisingyourchildtotellthedifferencebetweenrightandwrongisoneofthef____________tasksofparenthood.9．用harm的适当形式填空(1)Airpo

3、llutionwillgetworseandthiswillbe____topeople，forexample，itcancausecancer.(2)Rubbishcanbechangedinto____________things.(3)Don’t____________youreyesbyreadinginthedimlight.10．Lastnightwehadadiscussion，whichbecamemoreandmore____________.Finallywereachedanagreementthatwewillneveruse_____

4、_______whateverhappens.(violent)1.system2.climate3.theory4.laying5.exists6.puzzle7.gravity8.fundamental9.(1)harmful,(2)harmless(3)harm10.violent；violence高频短语1．________________及时，终于2．________________下蛋3．________________产生；分娩4．________________轮到某人；接着5．________________阻止；制止6．__________

5、______挡住(光线)7．________________感到高兴；感到振奋8．________________既然9．________________突发；爆发10．________________密切注视；当心；提防1.intime2.layeggs3.givebirthto4.inone’sturn5.prevent...from6.blockout7.cheerup8.nowthat,9.breakout10.watchout重点句式1．________________wasuncertainuntilbetween4.5and3.8billiony

6、earsagowhenthedustsettledintoasolidglobe.随后它会变成什么没有人知道，直到38～45亿年前，这团尘埃才慢慢地形成一个固体的球状物。2．Theearthbecame____________itwasnotclearwhethertheshapewouldlastornot.地球变得如此猛烈，以至于它的形状能否持久还不清楚。3．Thisproducedachainreaction，which__________________.这就产生了一系列的反应，使得生命有可能发展了。4．Wewatched，______________

7、__ontheoutsideofthespaceshipastheearth’sgravityincreased.我们惊奇地看着，随着地球引力的增加，宇宙飞船的外层燃烧起火。5．ButwhenItriedtostepforward，IfoundIwascarried_________ontheearthandfellover.而当我试着向前迈步时，我发觉我被送出很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。6．“...walkingdoesneedabitofpractice________________gravityhaschanged.”“……既然重

8、力改变了，走路也确实需要练一练了。”1