Module+3+Unit+2+We+haven't+found+life+on+any+other+planets.教学课件 外研版八年级英语下册

Unit2

Wehaven’tfoundlifeonanyotherplanets.Module3

Journeytospace太空JourneytospaceWhatdoyouknowabouttheearthandspace?FreetalkSpace:large billionsof planets starsdiscover

aliens

inuniverseEarth:sendspaceships astronautscomfortableenvironmentArehumansaloneintheuniverse?1.Anyoneoutthere?2.LifeonEarth3.Thesunandotherstars4.ThestarsatnightTips:keysentencesineachparagraph.Task1:Readthepassageandchoosethebesttitleforit.Doyouknowstarandplanets？Doyouknowstarandplanets？starAstarcanshine.planetAplanetcan’tshine.DoyouknowsolarsystemorGalaxy？lTheEarthisaplanetandit_____________thesun.lThesunanditsplanetsarecalled________________.lOursolarsystemisasmallpartof_________________.lTherearemanygalaxiesinthe_____________Readpara2andfinishthetask(1)(2)TheEarthisaplanetandit_____________thesun.goes

aroundThesunanditsplanetsarecalled________________.thesolarsystemOursolarsystemisasmallpartof_______________________.theGalaxy/theMilkyWaysolarsystermAmuchlargerofgroupofstarsandplanets.Therearemanygalaxiesinthe_________universeA.galaxyB.planetC.solarsystemD.starE.universe2)Putthemfromthesmallesttothelargest:Readpara2andfinishthetask.BDCEA3)Doscientiststhinktheywillfindlifeonother7planets?Why？Becausenoneofthemhasanenvironmentlikethatoftheearth.4)

Whatisthenecessary

environmentforlife？Readpara2andanswerthequestion.No,theydon’t.Whatisthenecessary

environmentforlife？3conditionspropertemperaturewaterAirReadpara3and4andanswerthequestions.1)Whathavescientistsdone?2)Havespaceshipsreachedotherstars?No,theyhaven’t.Theyhavediscoveredmanyothergalaxies.TheyhavesentspaceshipstotheplanetMarsandtraveloutsidethesolarsystem.Arewealoneintheuniverse?Istherelifeoutthereinspace?Havetherebeenanyvisitorstotheearthfromotherplanets?Whyhasnoonecoummunicatedwithus?Dowehaveanswersforthesequestions?No,wedon’tknowyet.Arewealoneintheuniverse?Istherelifeoutthereinspace?Havetherebeenanyvisitorstotheearthfromotherplanets?Whyhasnoonecoummunicatedwithus?Discusswithyourpartners!technologysafetylanguageenvironment?look?friendorfight?needs?Maybewearenotaloneintheuniverse!CropCircleUFOThere'sstillalongwaytoexploretheuniverse.wateronMarsWriting:Whathavethescientistsjustreceived?Describethealiens①theirlooks(n./adj.)②whataretheydoing?spaceshipMarsaliens·Whyhavealiensnotsentusamessage?·Whyhavealiensnotvisitedusontheearth?TSLNWhichsentenceisright?Thescientistsalreadyreceivemessages.Thescientistshave

already

receivedmessages.Wejustlandonmars.Wehaveonlyjust

landedonMars.Wenotdiscoveredaliens.Wehavenot

yetdiscoveredaliens.Wenotdiscoveredaliens.Wehavenotyetdiscoveredaliens.Thescientistsalreadyreceivemessages.Thescientistshavealreadyreceivedmessages.Wejustlandonmars.WehaveonlyjustlandedonMars.注意使用现在完成时Scientistshavejustreceivedamessagefromoneofourspaceships.Describethealiens①theirlooks(n./adj.)②whataretheydoing?spaceshipMarsaliens·Whyhavealiensnotsentusamessage?·Whyhavealiensnotvisitedusontheearth?Continuetowrite注意使用现在完成时starswishUseadjectivesUsepresentperfecttenseUseconnectivesSpellingPeer-assessmentHomework

Chooseoneofthefollowing:Writea60-wordsummaryforthispassage