外研版八年级下册英语M3U2

ScientistshavesentspaceshiptoMars.Thejourneyhastakenseveralmonths.Readthepassageandchoosethebesttitleforit.1.Anyoneoutthere?2.Lifeontheearth3.Thesunandotherstars4.Thestarsatnight√1.Theearthisastar.2.Thesunisastar.3.Thereismorethanonegalaxyintheuniverse.Check(√)thetruesentences.×√√4.Thelightfromthestarsinothergalaxieshastravelledforalongtimetoreachus.5.Scientistshavereceivedmanymessagesfromspace.6.Spaceshipshavevisitedmostoftheuniverse.√××1.ScientiststhinkthattherehasbeenlifeonEarthformillionsofyears.①宾语从句②therehasbeen:therebe的完成时科学家们认为，地球上已有生命数百万年了。ReadPara1andfindoutthissentence.Theythink_________________(曾有过)lifeonthemoon.用现在完成时therebehaseverbeenReadPara2andanswerquestions:1.WhatdoestheEarthgoaround?2.Howmanyplanetsgoaroundthesun?3.Whatisthesolarsystem?Itgoesaroundthesun.Eightplanets.Thesunanditsplanetsarecalledthesolarsystem.围着……转2.Noneofthemhasanenvironmentwithair.(L3-4)①none:一个（人\物）也没有用来回答howmany的提问（noone用来回答who的提问）noneof+n.复（谓语动词单复均可）②with:有他们中没有一个有空气的环境。①—Howmanypeoplearethereintheclassroom?—_____.A.NooneB.NoneC.Nothing②这些宇航员没人去过火星。_______theastronauts________________Mars.③这里曾经有个带花园的房子。______________somehouses____gardens.Noneofhave/hasbeentoTherehavebeenwith3.Thesunanditsplanetsarecalledthesolarsystem.(L5-6)becalled:被叫做（被动语态）那个演唱组合叫S.H.E.。Thepopgroup___________S.H.E..iscalledReadPara3fillintheblanks:Thestarswesee________arethesunsinothersolarsystem.Thereare__________200billonstarsinourgalaxy,calledthe__________,andoursunisonly___________.atnightmorethanMilkyWayoneofthem4.Thestarsweseeatnightarethesunsinothersolarsystems.(L1-2)定语从句：用来解释前面的名词。……的+前面的名词我们晚上看到的星星是其他星系的恒星。TheboywhoistalkingtotheteachercomesfromEngland.正在和老师谈话的男生来自英国。ReadPara4answerquestions:1.Whathavescientistsdiscovered?2.Whyisithardtoknowhowlargetheuniverseis?They’vediscoveredmanyothergalaxies.Becausetheyareveryfaraway.5.……theirlighthastravelledformanyyearstoreachus.他们的光线需要好几年才能到达地球。到达某地arrivein+大地方at+小地方getto+地方reach+地方【温故知新】后面没有地点只用arrive①Hewillcallyouassoonashe_____Foshan.A.arriveinB.getsC.reaches②Whocantellmewhenhe___?A.reachedB.gottoC.arrived③Thelightistoohigh.Ican’t____it.A.reachB.arriveC.get6.It’shardtounderstandhowlargetheuniverseis.()It’shardforthestudents_____theEnglishwell.A.learnB.tolearnC.learningItis+形+(forsb.)todo…B很难明白宇宙有多大。ReadPara5、6andanswerquestions:Hasanyonediscoveredlifeinspace?Noonehasdiscoveredanylifeinspaceyet.(P5,L4)7.Withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?(P6,L3)bealone:孤单的，孤独的行为动词+alone孤单地…，独自…loney寂寞的,孤单的feellonely感到孤单的宇宙中有这么多的星体，我们是单独的吗？太空中还有其他生命吗？用lonely，alone填空①Theoldmanlives______butheneverfeels_______.Becausehehasmanyfriendsthere.②Don’tleaveyourchild______athome.alonelonelyaloneCompletethepassagewiththewordsandexpressioninthebox.communicateenvironmentnonesolarsystemuniverseIstherelifeonotherplanets?Therearesevenotherplanetsinour(1)____________,but(2)______ofthemhasa(n)(3)____________likethatoftheearth.solarsystemnoneenvironmentSpaceshipsfromtheearthhavedonesurveysoftheotherplanets,buttheyhavenotfoundanylifethere.Whyhasnoonefromotherplanetstriedto(4)_____________withus?Itistruethatscientistshavenotdiscoveredlifeonotherplanetsinthe(5)_________yet,butsomescientistsbelievethattheywillfinditsomeday.communicateuniverse