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1、外语教学与研究出版社必修一畅言教育Module5ALessoninaLab本课时编写：马鞍山二中郑蒲港分校朱惠Lesson1Listening&Speaking教材分析:Thismodulefocusesonstudents’lessonsinalab.Andthislessonwillgivestudentsachancetotalkaboutscienceandlearntherelevantwordsandexpressions.Italsohelpsstudentslearnhowtoreadnumbers,whichareimpo
2、rtantinexperimentreports.教学目标：Bytheendofthislesson,studentswillbeableto:(1)masterthewordsandexpressionsrelatedtoalab;(2)readnumberscorrectly;(3)haveagoodunderstandingofscience.教学重难点：Studentsmasterthenewwordsandreadnumberscorrectly.课前准备：用心用情服务教育外语教学与研究出版社必修一畅言教育Multimedia.教
3、学过程：Step1Warm-upShareapictureandaskquestions.1.Wherearethey?2.Whataretheydoing?【设计意图】本单元的话题是关于学生在实验室的课程。该图片便是呈现出实验室做实验的场景，帮助学生快速导入此话题。Step2QuizTrytochoosethecorrectanswers.1.(a)Waterexistsasasolid,aliquidandagas.(b)Waterexistsasasolidandaliquidonly.2.(a)Whenyouheatametal,i
4、texpands.(b)Whenyouheatametal,itcontracts.3.(a)Steelisamixtureofironandothersubstances.(b)Steelisamixtureofironandoxygen.4.(a)Two-thirdsoftheearth’ssurfaceiswater.(b)50%oftheearth’ssurfaceiswater.5.(a)Thedistanceofthesunfromtheearthis25,5000kilometers.(b)Thedistanceofthesu
5、nfromtheearthis150,500,500kilometers.6.(a)Theearthis4.6millionyearsold.(b)Theearthis4.6billionyearsold.7.(a)Theearthistwiceaslargeasthemoon.(b)Theearthisforty-ninetimeslargerthanthemoon.Thenlistencarefullyandcheckyouranswers.【设计意图】了解学神对于普通科学掌握的情况，以便之后教学设计中的建构环节。最后听听力，核对信息，
6、给学生一定的输入，也同时增添学生对于科学的兴趣。Step3Newwords用心用情服务教育外语教学与研究出版社必修一畅言教育1.Putthewordsinpairs.aircontractearthgasliquidoxygenmoonsolidsunexpand2.Answerthequestions.electricityironmetalsteelairglass(1)Whichoftheabovearenatural?(2)Whichareman-made?(3)Whichcanbeboth?【设计意图】帮助学生扩大与话题相关的词汇
7、，以及探讨相关知识。Step4Readingnumbers1.Readthefollowingnumbersout.2,000,000(twomillion)5,100,000(fivemillion,onehundredthousand)12,269,000(twelvemillion,twohundredandthirty-ninethousandPractice:52,470,383100,000,000365,528,4621,000,000,000Conclusion:Howtoreadnumbers?12,345,678,900
8、(billion,million,thousand)2.Readthesefractions:1/4(aquarter)1/3(athird)4/5(four-fifths)1/
