高一英语必修三unit4学案.doc

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1、Unit4Astronomy:thescienceofthestars高一年级英语组王学杰2014-03-06单元目标：1.知识目标：掌握本单元单元要点预览中的重点单词，短语和重要句型；掌握名词性从句中主语从句的用法。2.能力目标：通过学习了解宇宙科学，地球上生命的起源和发展历程，了解万有引力、黑洞和太空旅行等天文学知识。3.情感目标：培养学生对科学的兴趣和保护地球的意识，激发学生探究科学的热情。Task1.SkimmingReadingstrategy(策略):Gothroughthepassagequicklytogetthemainideaofeachparagr

2、aph.Don’tworryaboutthedetailsandnewwords.Skimthepassageandmatchthemainideawitheachparagraph.Para.1Theformation(形成)oftheearthPara.2TheimportanceofwaterforlifePara.3AwidelyacceptedtheoryabouttheformationoftheuniversePara.4ThearrivalofhumansandtheireffectsontheearthPara.5Thedevelopmentofpla

3、ntsandanimalsontheearthTask2.Scanning:Choosethebestanswer1.Whywastheearthdifferentfromotherplanets?A.Itproducedalotofheat.B.Thewaterremained.C.Waterdisappeared.D.Itwastheoldestplanet.2.Whywaslifeabletodevelopontheearthbutnotonotherplanets?A.Theearthhadasolidshape.B.Theearthdidnothaveharm

4、fulgasesinitsatmosphere.C.Thewaterstayedontheearthbutnotonotherplanets.D.Theearthwasnottoohotandnottoocold.3.Whydidtheplantsgrowbeforeanimalscame?A.Animalsneededplantstoprotectthemfromthesun.B.Plantsprovidedoxygenforanimalstobreathe.C.Animalscouldhidefromhuntersinforest.D.Itwaseasierforp

5、lantstogrow.4.Whatproblemiscausedbyhumanbeings?A.Theyexisteverywhereontheearth.B.Theycauseglobalwarming.C.Theyfindnewmethodsofgrowingcrops.D.Theyenjoyhuntingandfishing.Task3.Detailedreading(细读)Readingstrategy:Readthepassagecarefullyparagraphbyparagraghandtrytogetmore17Relax!Bepatientande

6、njoyyourself.Learningforeignlanguagesshouldbefun.放松点！要有耐心，并让自己快乐！学习英语应该其乐无穷！2013—03—06information.Thenanswerthequestions.Para.1&2:Theformationoftheuniverseandtheearth1.Abouthowtheuniversebegan,whichtheoryiswidelyaccepted?2.Whatform（形状）wastheearthafterthe“BigBang”?3.Whatmadeuptheearth’sat

7、mosphereaftertheearthexploded?4.Inthesentence“Itexplodedloudlywithfireandrock.Theywereintimetoproducecarbon,nitrogen…”here“they”refersto__________.“Intime”means_______.Para.3:TheimportanceofwaterforlifeWhatmadetheearthdifferentfromtheotherplanetsisthat________remainedonth