高中英语 Unit 4 Astronomy-Grammarsubject clause教案 新人教版必修3VIP专享VIP免费

Unit4Astronomy:thescienceofthestarsPeriod4Learningaboutlanguage--Grammar:TheSubjectClauseTeachingplan&designTeachinganalysis：Thisisthefourthteachingperiodofthisunit.Thisteachingperiodmainlydealswiththefollowing:1.Reviewingnounclausesastheobjectandasthepredicative;2.Learningthenewgrammaritems:nounclausesasthesubject.Studentsoftenfeelnounclausesabstractanddifficulttolearn,soitisnecessarytomakethelessoninterestingandlively,andconnectitwiththeirdailylifeinordertoletiteasytoacceptandunderstand.Firstly,theteachercanaskstudentstoreadthepassageHOWLIFEBEGANONTHEEARTHagain,tickoutallthesentencesfromthepassagewherenounclausesareusedasthesubject,andthentranslatethemintoChinese.Secondly,compareanddiscovertheusesofeachnounclausebygivingalotofexamplesentences.Thirdly,dotheexercisesinDiscoveringusefulstructuresonPage29andmoreexercisesforstudentstomastertherelatednounclauses.Finally,summarizetheuseofnounclausesasthesubjectandletstudentsmakeitclearhoweachnounclauseisbeingusedinthesituations.Attheendoftheclass,askstudentstodotheexercisesinUsingstructuresonPage64(theworkbookexercises)andmoreadditionalexercisesforconsolidation.Teachingimportantpoints：Getstudentstounderstandandusenounclausesasthesubject.Teachingdifficultpoints：Enablestudentstolearnhowtousenounclausesasthesubjectcorrectly.Teachinggoals：Knowledgeaims：1.Getstudentstoknowmoreaboutnounclauses.2.Letstudentslearnnounclausesasthesubject.Whatitwastobecomewasamystery......itwasnotclearwhetherthesolidshapewastolastornot.Abilityaim：Enablestudentstousenounclausesasthesubjectcorrectlyandproperlyaccordingtothecontext.Emotionalaims：1.Getstudentstobecomeinterestedingrammarlearning.2.Developstudents’senseofgroupcooperation.Teachingmethods：Task-basedteachingandlearningCooperativelearningandpracticeDiscoveringandSummarizingTeachingaids：Atinyblackboardandothernormalteachingtools.Teachingprocedures&ways：→Step1Greeting&Lead-in2’Goodafternoon,everyoneThisclass，let’sdealwiththegrammarpart：TheSubjectClause.→Step2Warmingup5’Showsomesentencesontheblackboard.Askstudentstoreadeachofthemandthenfindoutitssubject.1.Atreehasfallenacrosstheroad.2.Youareastudent.3.Tofindyourwaycanbeaproblem.4.Smokingisbadforyou.5.“Howdoyoudo?”isagreeting.6.Whatshesaidisnotyetknown.7.Thatweshallbelateiscertain.8.It’scertainthatweshallbelate.→Step3Grammarlearning23’1.Listeninganddiscovering5’AskstudentstoturnbacktoPage25tolistenthroughthereadingpassageandfindallthesentenceswherenounclausesareusedasthesubjectandunderlinethem.ThentranslatethemintoChinese.Suggestedanswers:1)Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.地球会变成什么（样子）,直到45亿至38亿年前这个云团变成一个固体的球状物,才确定下来。2)Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastornot.地球变得激烈动荡,不知道这个固体形状是否会继续存在下去。3)Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.更重要的是,随着地球的冷却,地球的表面就开始出现了水。4)Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.水对于生命的发展会起关键作用,这一点在当时并不明显。5)Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.很多科学家相信,由于地球上长期有水存在,使地球得以把有害气体和酸性物质溶解在海洋里。6)Whytheysuddenlydi...