资源描述：
《unit 4 astronomy the science of the stars language points（学生版）》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、Book3Unit4学案WarmingupLanguagepoints【原句1】Inoursolar________eightplanetscirclearoundthesun.在我们的太阳系中有八颗行星围绕着太阳转。1).____________n.[c]系统；体系；制度；方法_______________adj.有系统的;有条理的Eg:Heintroducedusawell-designedrailwaysystem.Theeconomicsystemaffectsthewholecountries.Underthenewsystem,peoplelo
2、veourcountry.(1)The____________(教育系统)operatesverydifferentlyintheUSandChina.(2)太阳系包括太阳和它的八颗行星。_____________________________________________________(3)在新制度下，农民工(migrantworkers)将受益很多。______________________________________Reading一．语法填空（根据课文内容完成短文）Nooneknowshowtheearthbegan,asithappen
3、edsolongago.However,accordingtoa1._______(wide)acceptedtheory,theuniversebegan2.______a"BigBang"thatthrewmatterinalldirections.Afterthat,atomsbegantoformandcombinetocreatestarsandotherbodies.Forseveralyearsafterthe"BigBang",theearthwasstilljustacloudofdust.Whatitwastobecomewasunce
4、rtainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.Theearthbecamesoviolent3.______itwasnotclearwhethertheshapewouldlastornot.Itexplodedloudlywithfireandrock.Theywereintimetoproducecarbon,nitrogen,watervapourandothergases,4._______weretomaketheearth'satmosph
5、ere.5.______isevenmoreimportantisthatastheearthcooledlow,waterbegan6._________(appear)onitssurface.WaterhadalsoappearedonotherplanetslikeMarsbut,7._______theearth,ithaddisappearedlater.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothe8._________(develop)oflife.Whatmanysci
6、entistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.Thisproduced9.______chainreaction,whichmade10._______possibleforlifetodevelop.二．Languagepoints:【原句1】However,accordingtoawidelyacceptedtheory,theuniverse____________a"Bi
7、gBang"thatthrewmatterinalldirections.然而，一种普遍为人们所接受的理论是：宇宙起源于一次大爆炸，这次大爆炸将物质投射到四面八方。1).__________________从/以……开始Eg:Thepartybegan/startedwithasong.Hebegan/startedthepartywithasong.Tobegin/startwith,wemustapologizetoourteacherforbeinglate.搭配归纳：_________________从/以……开始_________________
8、___以/从……开始……_____________________
