初中八年級英語課件Wehaventfoundlifeontheotherplanet

Module3Journeytospace

Unit2Wehaven’tfoundlife

ontheotherplanetsyet.外研版八年級下冊Wehaven’tfoundlifeontheotherplanetsyet.Let’swatchavideoandtalkaboutwhatyouknowaboutthespaceship點擊畫面播放TheEarthisaplanetandit___________(圍繞著……轉(zhuǎn))thesun.Learnthenewwords.goesaround行星astar恒星Pre-readingSevenotherplanetsalsogoaroundthesun._____(沒有一人;沒有一個;一點兒也沒有)ofthemhasan___________(環(huán)境)likethatoftheearth,soscientistsdonotthink

theywillfindlifeonthem.NoneenvironmentThesunanditsplanetsarecalled____________________(太陽系).thesolarsystem太陽的，與太陽有關(guān)的/?u//?/Therearebillionsof

(數(shù)以億計的)starsinthe_________(星系),andoursunisonlyoneofthem.GalaxyReadthepassagequicklyandchoosethebesttitleforit.1.Anyoneoutthere?2.Lifeontheearth3.Thesunandotherstars4.Thestarsatnight√

Thefirstandlastparagraphsmayhelpyougetthemainidea.FastreadingWhile-reading1.ReadP1-2,andchoosesthebestanswers.(1)Howlonghaslifebeenontheearth?()a.Hundredsofyears.b.thousandsofyears.c.Hundredsofmillionsofyears.(2)Howmanyplanetsdoesthesunhave?()a.Sevenb.Eightc.Nine

cbCarefulreadingWhile-reading2.ReadP2-3,andcompare.galaxy＜＜＜solarsystemsununiverseWhile-readingCarefulreading3、ReadP4--5,andcheckthetruesentences.(1)Scientisthaven’tsentspaceshipstotraveloutsidethesolarsystem.()(2)Totheuniverse,scientistshavemanyquestionswithoutanswers.(

)√×haveWhile-readingCarefulreading1.TheEarthisastar.2.TheSunisastar.3.Thereismorethanonegalaxy.4.Thelightfromstarshastakenalongwaytoreachus.5.They’vereceivedmanymessagesfromspace.6.They’vevisitedmostoftheuniverse.aplanet.haven’thaven’t

4.ReadcarefullyandsayTrue(T)orfalse(F).Why?Tip：通覽全文，“對癥下藥”While-readingCarefulreading5.Mind-mapmayhelpyougettheoutlineofthepassage.Readparagraphs2-5againtocompletetheMind-map.While-readingCarefulreadingOurgalaxy(The__________)Other________(morethan200______stars)The____________Other______haveno______,sopeopleandthingscan’t_________.SunSome_________havegone______thesolarsyetem.MilkyWaystarsbillionsolarsystemplanetsairgrowspacecraftbeyondSpaceshipsfromtheearthhavedonesurveysoftheotherplanets,buttheyhavenotfoundanylifethere.Whyhasnoonefromotherplanetstriedto(4)_____________withus?Itistruethatscientistshavenotdiscoveredlifeonotherplanetsinthe(5)_________yet,butsomescientistsbelievethattheywillfinditsomeday.Completethepassagewiththewordsandexpressioninthebox.communicateenvironmentnonesolarsystemuniverseIstherelifeonotherplanets?Therearesevenotherplanetsinour(1)____________,but(2)______ofthemhasa(n)(3)______________likethatoftheearth.solarsystemnoneenvironmentcommunicateuniverse

Post-readingDoyouwanttoknowmoreaboutthespace?Post-readingPost-readingTheuniverseisthenamethatweusedescribethecollectionofallthethingsinspace.Itissohugethatitssizeishardtoimagine.ItismadeupofmanybillionsofstarsandplanetsDistancesinspacearehuge.Theyareusuallymeasuredinlightyears.Onelightyearisthedistancethatlighttravelsinayear.Lighttravelsataspeedof300,000kmpersecondAgalaxyisalargegroupofstars.Galaxiesaresobigthatitcantakearayoflightthousandsofyearstotravelacrossone.Thecloseststartotheearthisthesun.Arayoflighttakeseightminutestotravelfromthesuntotheearth.Therearebillionsofstarsineverygalaxy,Astarcanproduceheatandlight.Somestarsaremuchbrighterthanothers.Theyhavedifferentcolorstoo.Thecolorofastardependsonhowhotitssurfaceis.Starscanbered,orange,yellow,whiteorblue.Blueonesarethehottestofall.練有所得一學(xué)習(xí)能能力構(gòu)建1.Theunderlinedword"Distances"inParagraph2probablymeans_______A.距離B.面積C.范圍D.體積2.Howlongdoesittakearayoflighttotravelfromthesuntotheearth?A.Twominutes.B.FourminutesC.FiveminutesD.Eightminutes

3._________arethehottestofallstarsA.RedstarsB.BluestarsC.OrangestarsD.Yellowstars4.WhichofthefollowingisTRUEaccordingtothepassage?A.AplanetcanproduceheatandlightB.Theuniverse'ssizeiseasytoimagine.C.ThereareasmallgroupofstarsineverygalaxyD:Theuniverseismadeupoflotsofstarsandplanets.Activity1

Trytodescribetheuniverseinyourownwords.思有所悟

---思維品質(zhì)培養(yǎng)Whatdoyouknowabouttheearth?Activity2Trytoimaginelivingontheotherplanet,andwriteapassage