2023学年完整版Unit4Astronomythescienceofthestars备课资料8

Unit4Astronomythescienceofthestars备课资料Warmingup-Reading了解宇宙科学、地球生命的起源，了解万有引力、黑洞和太空旅行等天文学知识，培养学生对科学的兴趣，激发学生探求科学的热情。掌握名词性从句中主语从句的用法。背景导读创造论(或神造说）创造论否认一切的事物是自然形成的说法。它认为哪怕是正在呼吸的空气，也是需要被创造才得以产生。比如上帝、阿尔修斯。自然发生说又称“自生论”或“无生源论”，认为生物可以随时由非生物产生，或者由另一些截然不同的物体产生。如中国古代所谓“肉腐出虫，鱼枯生蠹”、亚里士多德说的“……有些鱼由淤泥及砂砾发育而成”。中世纪有人认为树叶落入水中变成鱼，落在地上则变成鸟等。宇宙生命论(或泛生说)这一假说提倡“一切生命来自生命”的观点，认为地球上最初的生命来自宇宙间的其他星球，即“地上生命，天外飞来”。这一假说认为，宇宙太空中的“生命胚种”可以随着陨石或其他途径跌落在地球表面，即成为最初的生命起点。宇生说​这一假说认为，地球上最早的生命或构成生命的有机物，来自于其他宇宙星球或星际尘埃。持这种假说的学者认为，某些微生物孢子可以附着在星际尘埃颗粒上而落入地球，从而使地球有了初始的生命。化学起源说化学起源说是被广大学者普遍接受的生命起源假说。这一假说认为，地球上的生命是在地球温度逐步下降以后，在极其漫长的时间内，由非生命物质经过极其复杂的化学过程，一步一步地演变而成的。Readingone语篇解读：I.FirstreadingReadthepassagecarefullyandanalyzeitsstructure(结构).Writedownthemainideaforeachparagraph.MainideaParagraph1:_______________________theoryabouttheformation（形成）______________Paragraph2:_________________________oftheearthParagraph3:Theimportanceof_________________________________Paragraph4:Thedevelopmentof________________________________Paragraph5:Thearrivalof__________and________________________II.SecondreadingReadthepassagecarefullyandthenchoosethecorrectanswer.Whatmadeitpossibleforlifetobeginanddevelopontheearthaccordingtothepassage?A.HarmfulgasesB.WaterC.CarbondioxideD.OxygenWhichisthecorrectorderofthefollowinganimals'appearanceontheearth?a.fishesA.a-d-c-e-bB.a-d-b-c-eD.c-d-a-e-bWhichofthefollowingisNOTtrueaboutthedinosaurs?A.Theyproducedtheiryoungbylayingeggs.B.Someofthemwereveryhuge.C.Theyproducedtheiryoungwithintheirbodies.D.Theyoncelivedontheearthformillionsofyears.Whatisthemainproblemtobesolvedforlifetocontinueontheearth?A.FoodB.WaterC.AidsD.GlobalwarmingIII.ThirdreadingPuttherightorderofdevelopmentoflifeintoatimeline.Usethereadingpassagetohelpyou.()1Insectsandamphibiansappeared.()2Dinosaursappeared.()3Theearthbecameasolidball.()4Smallplantsgrewonthewater.()5Reptilesappeared.()6Plantsbegantogrowondryland.()7Theearthwasacloudofdust.()8Waterappearedontheearth.()9Shellfishandotherfishappeared.()10Theuniversebeganwitha“BigBang”.()11Cleveranimalswithhandsandfeetappeared.()12Mammalsappeared.IV.Findoutthefollowingphrasesinthepassage.1.以……开始2.及时；终于3.下蛋4.在地球上生存5.恐龙时代6.产生；分娩7.轮到某人；接着8.阻止；制止9.从……逃脱10.太热而无法生存V.AnalyzethesesentencesandtranslatethemintoChinese.①Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastornot.在此句中it作__________,whether引导...that在句中引导________________________.②Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.在此句中it作__________,that引导______________.befundamentalto...是……的基础①.Whatitwastobecomewasuncertainuntilbetweenandbillionyearsagowhenthedustsettledintoasolidglobewhat在句中引导在句中引导_______________,在句中修饰_______________.settleinto/to…①安顿下来；②习惯于（新居）；③适应（新工作）②.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.what在句中引导_____________________.that在句中引导_____________________.cooldown①变冷;冷却下来②镇静下来③.Whytheysuddenlydisappearedstillremainsamystery.why在句中引导_____________________.remain________________④.Sowhetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.第一个whether在句中引导________________.第二个whether在句中引导_______________.tocome在句中作____________,表示_________________.3.①However,accordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.that在句中引导_____________,用来修饰___________inalldirections=ineverydirection向四面八方②Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.which在句中引导_______________,用来修饰_____________________.it在句中作_______________,todevelop在句中作______________.Readingone拓展提升学案原文填空:(每空填一个单词,请注意正确形式)Finallyaboutmillionyearsagosomesmallcleveranimals,now_______handsandfeet,appearedand________alloverthe,________________,becomethemostimportantanimalsontheplanet.Buttheyarenotlookingaftertheearthverywell.Theyare_______toomuchcarbondioxide_______theatmosphere,__________________heat_______________fromtheearthintospace.________________ofthis,manyscientistsbelievetheearthmaybecometoohotto____________.Sowhetherlifewillcontinueontheearthformillionsofyears____________willdependon_______thisproblemcanbesolved.Book3Unit4Astronomy:thescienceofthestars导学案答案Warmingup-Reading课前预习学案语篇解读：I:Paragraph1:AwidelyacceptedtheoryabouttheformationoftheuniverseParagraph2:TheformationoftheearthParagraph3:TheimportanceofwaterforlifeParagraph4:ThedevelopmentofplantsandanimalsontheearthParagraph5:ThearrivalofhumansandtheirimpactontheearthII:BACDIII.107384961521211IV.1.begin/ime3.layeggs4.existontheearthageofdinosaurs6.givebirthto7.inone’sturn8.prevent…from9.escapefrom…10.toohottoliveonV.1.①形式主语，真正的主语，结果状语从句②形式主语，真正的主语2.