Module3Unit2课件英语八年级下册2

Unit2Wehavenotfoundlifeonanyotherplanetsyet.Freetalk1.WhathasChinadoneonspaceresearch?Chinahasalreadysentsatellitetothespace.alreadysentspaceshiptothespace.alreadysentastronautstothespace.alreadysentspaceshiptoMars.2.HowdoyoufeelaboutChina’sacheivement(成就）onspaceresearch?Readthepassageandchoosethebesttitleforit.1.Anyoneoutthere?2.Lifeontheearth3.Thesunandotherstars4.Thestarsatnight√

文章的首段和尾段可以帮助我们获取文章的主旨大意The1stPara.Questions:1.Howlonghastherebeenlifeontheearth?

2.Havewefoundlifeonanyotherplanetsyet?Therehasbeenlifeontheearthforhundredsofmillionsofyears.No,wehaven’t.1.Whatiscalledthesolarsystem?Whatisit?2.Howmanyplanetsarethereinthesolarsystem?3.Whydon’tscientiststhinkthey’llfindlifeontheotherplanets?Thesunanditsplanetsarecalledthesolarsystem.ItisasmallpartoftheGalaxy/theMilkyWay.The2ndPara.Questions:Thereareeightplanets.Becausenoneofthemhasanenvironmentlikethatoftheearth.Whathavescientistsdiscovered?2.Whyisitimpossibletoimaginehowlargetheuniverseis?They’vediscoveredmanyothergalaxiesintheuniverse.Becausetheyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.The3rdPara.Questions:Howlargeistheuniverse?

theuniverseourgalaxymanyothergalaxiessolarsystemmanyothersystemsThesun

star8planetsTheearthsevenotherplanetsbillionsofstars

andplanetsTheMilkyWayThe4thPara.1.Scientistshavesentastronautstotheplanetstotakephotos.2.Scientistshaven’tsentspaceshiptotraveloutsidethesolarsystem.3.Spaceshiphastravelledfarenoughtoreachotherstarsinourgalaxy.FFFspaceshiphaven’thasn’tDiscussion讨论WatchandreadSpaceshipsfromtheearthhavedonesurveysoftheotherplanets,buttheyhavenotfoundanylifethere.Whyhasnoonefromotherplanetstriedto(4)_____________withus?Itistruethatscientistshavenotdiscoveredlifeonotherplanetsinthe(5)_________yet,butsomescientistsbelievethattheywillfinditsomeday.Completethepassagewiththewordsandexpressioninthebox.communicateenvironmentnonesolarsystemuniverseIstherelifeonotherplanets?Therearesevenotherplanetsinour(1)____________,but(2)______ofth