高中英语Unit4Astronomythescienceofthestars1WarmingUpPr

Unit4Astronomy:thescienceofthestars单词注释难句剖析导读诱思天文学是一门古老而常新的自然科学,其研究对象是宇宙的规律,是研究天体的结构、形态、分布、运行和演化等的学科。Peoplehavealwayswatchedthebeautifulnightsky.Manyancientpeopleoftheworldcloselystudiedthestarsforsignsfromtheirgods.TheMayan①andAztecsofCentralAmericaandMexicobuiltspecialtallbuildingstoobservethestars.TheancientpeopleofEgypt,Greece,Italy,andChinaalsostudiedthestars.ThepeoplewholivedontheislandsofthePacificusedthestarstofindtheirwayacrosshugeareasofocean.Peopletodaystilllooktothestarsforinformation—notaboutancientgods,butabouttheuniverse.Moderntechnologyhasmadeitpossibletoseeobjectsinspacethatarethousandsofmillionsofkilometresaway.单词注释难句剖析导读诱思However,withouttechnologyyoucanseeallofthesameobjectsinthenightskythatancientpeoplesaw.Thereisalottoseeandstudy.Ittakesalittleworkandalittleknowledge,butitisreallyveryeasy.Ifyouliveinthenorthernpartoftheworld,youcansearchthenightskytothenorthandfindPolaris②.AncientpeoplewatchedPolarisforalongtimeanddiscoveredthatitmovesverylittle.Itcanalwaysbefoundinthesameplaceinthenorthernsky.AncientpeopleusedthePolaristoguidetheirshipsacrossoceans.Inthesouthernpartoftheworld,youcanseeAlphaandBetaCentauri③inthenightsky.TheypointthewaytothebeautifulgroupofstarscalledtheSouthernCross④.AncientpeopleusedtheSouthernCrosstoguidetheirships.单词注释难句剖析导读诱思①Mayanadj.玛雅人的,玛雅语的n.玛雅人,玛雅语②Polarisn.北极星③AlphaandBetaCentauri半人马座阿尔法和贝塔星④SouthernCross南十字星座难句剖析导读诱思单词注释Moderntechnologyhasmadeitpossibletoseeobjectsinspacethatarethousandsofmillionsofkilometersaway.译文:现代科技使得我们能够看到距离数十亿千米太空外的物质。剖析:it放在made后做形式宾语,真正的宾语是“toseeobjects...away”。难句剖析导读诱思单词注释1.WhatdidpeoplewholivedontheislandsofthePacificusethestarstodo?答案:Tofindtheirwayacrosshugeareasofocean.2.Howdidancientpeopleinthesouthernpartoftheworldguidetheirships?答案:TheyusedtheSouthernCrosstoguidetheirships.SectionⅠ—WarmingUp,Pre-reading,Reading&Comprehending一二三四五Pre-reading一、将单词或短语与相对应的释义搭配起来AB1.theorya.differentfrom;notsimilarto2.unlikeb.tobepresentorhappen3.prevent...fromc.anideaoropinion4.existd.causingharm5.harmfule.tostop/keep...from答案:1.c2.a3.e4.b5.d一二三四五二、短语互译A.温故:从文中找出下列短语并写出它们的汉语意思。1.accordingto2.cooldown3.bedifferentfrom4.dependonB.知新:从文中找出与下列释义对应的英文。1.及时;终于2.阻止;制止3.下蛋4.产生;分娩5.轮到某人根据;按照变凉与……不同依赖;取决于intimeprevent...fromlayeggsgivebirthtoinone’sturn一二三四五三、阅读课文HOWLIFEBEGANONTHEEARTH,按照地球的形成与发展,给下面的句子排序()AInsectsandamphibiansappeared.()BTheearthwasasolidglobe.()CReptilesappeared.()DTheearthwasjustacloudofdust.()EShellfishandotherfishappeared.()FDinosaursappeared.()GSmallplantsbegantogrowonthesurfaceofwater.()HPlantsbegantogrowondryland.()IWaterbegantoappearontheearth.()JMammals(includinghumans)appeared.72815946310一二三四五四、阅读HOWLIFEBEGANONTHEEARTH,回答下列问题1.Howwerestarsandotherbodiescreated?A.Atomscombinedtocreatethem.B.Cloudsofdustcombinedtocreatethem.C.Watercombinedtocreatethem.D.Gasescombinedtocreatethem.2.Whichisthemostimportantforlifeappearingontheearth?A.Fire.B.Rock.C.Water.D.Clouds.答案:A答案:C一二三四五3.Itcanbeknownfromthepassagethat.A.plantsandanimalsappearedontheearthatthesametimeB.plantsappearedlaterontheearththananimalsC.earlyshellfishappearedearlierthanplantsD.animalsappearedlaterontheearththanplants4.Howmanyyearsdiddinosaursexistontheearth?A.Morethan140billionyears.B.Morethan140millionyears.C.Morethan140thousandyears.D.Morethan140years.答案:D答案:B一二三四五5.Whycantheearthbecometoohottoliveon?A.Smallcleveranimalsproducemoreheat.B.Smallcleveranimalsproducetoomuchcarbondioxide.C.Smallcleveranimalsdon’twantheattoescapefromtheearth.D.Smallcleveranimalsliketoliveonahotplanet.答案:B一二三四五五、根据课文内容填空HowlifebeganontheearthAfterthe“BigBang”,theearthwasjustacloudofdust.Itexplodedwithfireandrock,1.intimeproducedwatervapourandallkindsofgases,whichweretomaketheearth’satmosphere.Astheearthcooleddown,waterbegantoappearonitssurface.Water2.(stay)ontheearthallowedtheearthtodissolve3.(harm)gasesandacidsintotheoceansandseas.Thatmade4.possibleforlifetodevelop.Later,thefirstextremelysmallplantsbegantoappearonthesurfaceofthewater.Theymultipliedandfilledtheoceansandseaswithoxygen,whichencouragedthelater5.(develop)ofearlyshellfishandallsortsoffish.whichstayingharmfulitdevelopment一二三四五Next,greenplantsbegantogrowonland,6.(follow)intimebylandanimals.Whendinosaursdisappeared,mammalsbecamemoreimportant.Theygave7.toyoungbabyanimals.Smallcleveranimalsnowspreadallovertheearth.Buttheyarenottakinggoodcareoftheearth.Theearthmaybecome8.hotforthelivestoliveon,becausetheyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheat9.escapingfromtheearthintospace.Whetherlifewillcontinueontheearthformillionsofyearstocomewilldependon10.thisproblemcanbesolved.followedbirthtoofromwhether121234567891.Inoursolarsystemeightplanetscirclearoundthesun.在我们的太阳系中,有八颗行星围绕太阳运转。考点一thesolarsystem太阳系Thesolarsystemisthesystemofplanets,satellites,etc.,ofwhichthesunisthecenter.太阳系是行星、卫星等的星系,其中太阳是中心。考点二systemn.系统;体系;制度【高考典句】(2015·湖南高考)Thecityplannersdecidedtobuildanundergrounddrainagesystem.城市规划者决定建一个地下排水系统。Thepresentsystemofeducationneedsimproving.现行教育制度需要改进。归纳:system做“系统;体系;制度”讲时为可数名词。101113123456789活学活用单词拼写1)Thebankis