unit 4 astronomy 新人教版必修3

《unit 4 astronomy 新人教版必修3》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、新课标人教版Unit4　Astronomy：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.Theidea____

2、________(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)Airpollutionwillgetworseandth

3、iswillbe____topeople，forexample，itcancausecancer.(2)Rubbishcanbechangedinto____________things.(3)Don’t____________youreyesbyreadinginthedimlight.10．Lastnightwehadadiscussion，whichbecamemoreandmore____________.Finallywereachedanagreementthatwewillneveruse____________whateverhappens.(violent)1.sys

4、tem　2.climate　3.theory　4.laying　5.exists6.puzzle　7.gravity　8.fundamental　9.(1)harmful,(2)harmless　(3)harm　10.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．________________挡住(光线)7．________________感到高兴；感到振奋

5、8．________________既然9．________________突发；爆发10．________________密切注视；当心；提防1.intime　2.layeggs　3.givebirthto　4.inone’sturn　5.prevent...from　6.blockout　7.cheerup　8.nowthat,9.breakout　10.watchout重点句式1．________________wasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.随后它

6、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，________________ontheoutsideofthespaceshipastheearth’sgravityincreased.

7、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