2019-2020年高一英语 Book3 Unit4 Astronomy学案3 人教新目标

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1、2019-2020年高一英语Book3Unit4Astronomy学案3人教新目标教师寄语：Neverputoffwhatyoucandotodayuntiltomorrow.今日事今日毕！HowlifebeganontheearthⅠFastreadingⅰ．Whatisthepassageabout?ⅱ．Puttheorderofdevelopmentoflifeintoatimeline.A.Insectsandamphibiansappeared.B.Theearthbecameasolidball.C.Reptilesappeared.D.Theearthwasacloud

2、ofdust.E.ShellfishandotherfishappearedF.Dinosaursappeared.G.Smallplantsgrewonthewater.H.Plantsbegantogrowondryland.I.Waterappearedontheearth.J.Mammals(includinghumans)appeared.Therightorder:ⅲMultiple-choice1.Whywastheearthdifferentfromotherplanets?AItproducedalotofheat.B.Thewaterremained.CWater

3、disappeared.D.Itwastheoldestplanet.2.Whywaslifeabletodevelopontheearthbutnotonotherplanets?ATheearthhadasolidshape.B.Theearthdidnothaveharmfulgasesinitsatmosphere.CThewaterstayedontheearthbutnotonotherplanets.D.Theearthwasnottoohotandnottoocold.3.Whydidtheplantsgrowbeforeanimalscame?AAnimalsnee

4、dedplantstoprotectthemfromthesun.BPlantsprovidedoxygenforanimalstobreathe.CAnimalscouldhidefromhuntersinforest.DItwaseasierforplantstogrow.4.Whatproblemiscausedbyhumanbeings?ATheyexisteverywhereontheearth.BTheycauseglobalwarming.CTheyfindnewmethodsofgrowingcrops.DTheyenjoyhuntingandfishing.Ⅱ.Cl

5、osereadingⅰReadthetextandmatchthemainideaofeachparagraph.Paragraph1:a.TheimportanceofwaterforlifeParagraph2:b.ThedevelopmentofplantsandanimalsontheearthParagraph3:c.TheformationoftheearthParagraph4:d.AwidelyacceptedtheoryabouttheformationoftheuniverseParagraph5:e.Thearrivalofhumansandtheirimpac

6、tontheearthⅱ.Answerthequestions1.Whatwasthereontheearthbeforelifecouldbegin?2.Whydoscientiststhinktherehasneverbeenlifeonthemoon?3.Whydidanimalsfirstappearintheseas?4.Whydidgreenplantshelplifetodevelop?5.Whyweremammalsdifferentfromotheranimals?6.Howdidwatereintobeingontheearth?ⅢTranslatephrases

7、:1.一个广为接受的理论______________________2.向四面八方_______________3.及时，最后__________4.对….是基本的__________________5.水的长期存在_________________6.连锁反应___________________7.各种各样的鱼_______________8.第一次_______________9.产卵__________10.产生，分娩_______________