英语北师大版选修7 Unit20 lesson 3 Scientific breakthroughsVIP专享VIP免费

lesson3ScientificBreakthroughsTeachingAims:1.Touseproperreadingstrategiesfordifferenttasks.2.Toimprovepracticalreadingskillsandability3.TogetfamiliarwithscientificbreakthroughsinthelastcenturyTeachingdifficulties:learntousereadingstrategiesTeachingAids:computerTeachingprocedures:Ⅰ.Warmingup:quizUsesomedescriptionsandpictures,askstudentstoguesswhothegreatscientistis.(由此引入本课话题：scientists,andscientificbreakthroughs)Ⅱ.ReadingPractice1.readingforgeneralidea(1.)Showstudentsthereadingstrategyforgeneralidea.Thenstudentsreadthetextanddosomeexercises.(2)Ex2.Trytomatchthediscoverieswithhowtheywerediscovered?(3)multiplechoice:Thepurposeofthisarticleis____.A.theintroductionoftheWrightBrothersB.theintroductionoftheprocessofscientificbreakthroughC.introductionofthemajorscientificdiscoveriesinthe20thcenturyD.thecontributionsscientistsmadetotheworld（4）booksclosed.Matchthepioneerswiththedeeds2.readingforspecificinformation(1)showthereadingstrategiesandletstudentsworkingroupstodosomeTorFexercise.(2)WhileAlbertEinsteinwasrockinghisone-year-oldbaby,he_______.A.wasawareofrecentscientificdevelopments.B.thoughtoverMarieCurie’sresearch.用心爱心专心C.heshowedthatnoteventime,massorlengthareconstant.D.cameupwiththefamous“theoryofrelativity”(让学生思考：各个选项是否来自课本，干扰项是如何设置来迷惑人的，arethereadingstrategiesusefulandeffective?)(让学生在探索中学会运用阅读技巧获取和处理信息，学会合作学习)Ⅳ.afterreadingTask1.Vocabulary:Exs5inthetextbookandaskstudentstofindsomeusefulexpressioninthetext.Task2.Discussion:talkaboutscientificbreakthroughsandtheirinfluenceonourlife用心爱心专心