九年级英语下册 Unit 4 Life on Mars Reading II教案 （新版）牛津版-（新版）牛津版初中九年级下册英语教案VIP免费

Unit4LifeonMarsReading(II)I.TeachingaimsandlearningobjectivesBytheendofthelesson,studentsshouldbeableto:1.mastertheusageofkeywords,phrasesandsentences;2.comparethelifeontheEarthwiththatonMars;3.knowtheimportanceofprotectingtheEarth.II.Teachingcontents1.Newwordsandphrases:planet,crowded,polluted,rapid,increase,passenger,uncomfortable,oxygen,tasty,specially,float,compare,interplanetary,network,challenging,rapidly,alloveragain,ata/thespeedof,intheformof,compareto/with2.Newstructures:Foodwouldmostprobablyintheformofpillsandwouldnotbesotasty.ThegravityonMarsisonlyaboutthree-eighthsofthatontheEarth.ComparedwithlifeontheEarth,peoplewouldhavemorespace.III.Focusofthelessonandpredictedareaofdifficulty1.Furtherunderstandingofthetext.2.Languagepoints.IV.TeachingproceduresStep1Lead-inShowsomebeautifulpicturesandourownplanetEarth.【设计意图：在音乐声中欣赏图片，激发学生对美好大自然及地球的热爱。】Step2ReviewT:Fillintheblankswithproperwordsaccordingtothearticle.【设计意图：在学生自主复习的基础上采用中考题型进行检测、巩固。】Step3Presentation1.moreandmoreT:WhywillweleaveourownplanetEarth?S:Earthisbecomingmoreandmorecrowdedandpollutedbecauseoftherapidincreaseinpopulation.moreandmore加强程度，表示越来越……Thestructureis“comparative+comparative”.e.g.youngerandyounger,fasterandfaster,betterandbetter,moreandmorecareful,moreandmorecomfortableT:Let’smakesomesentencestopraiseyourpartnerwiththisstructure.2.too+adj.+todo/...so...that...can’t..../...adj.+enoughtodo…T:HowlongdoesthespacecraftneedtogettoMarsatpresent?S:Ittakesmonths.BecauseourspacecraftaretooslowtocarrylargenumbersofpeopletoMarsatpresent.too+adj.+todo/...so...that...can’t..../...adj.+enoughtodo…e.g.Sandy太年轻了而不能去上学。Sandyistooyoungtogotoschool.Sandyissoyoungthatshecan’tgotoschool.Sandyisnotoldenoughtogotoschool.3.atthespeedofT:HowlongdoesthespacecraftneedtogettoMarsinthefuture?S:Bytheyear2100,thejourneymightonlytakeabout20minutesinspacecraftthattravelatthespeedoflight.e.g.Thespeedofthelightis300,000,000meterpersecond.Thecarsaredrivingathighspeed.Weshouldmoveatthespeedof100kilometersperhour.【设计意图：通过问题的创设与回答，自然引出知识点，并通过翻译短语、自主造句等方式加以理解、巩固。】Step4Analysis1.LifeonMarsT:HowmanyaspectsdoesthearticletellusaboutthelifeonMars?Whatarethey?S:Fiveaspects.Theyareaboutfood,gravity,houses,freetimeandschools.【设计意图：通过对文本的整合、理解进行归纳总结，并为语言点的教学埋下伏笔。】T:DescribelifeonMarsfromthefiveaspects.Food:Foodwouldmostprobablyintheformofpillsandwouldnotbesotasty.Gravity:ThegravityonMarsisonlyaboutthree-eighthsofthatontheEarth.Houses:ComparedwithlifeontheEarth,peoplewouldhavemorespace.Freetime:Robotswoulddomostoftheirworksothattheycouldhavemoretimetorelax.Schools:Everystudentwouldhaveacomputerconnectedtoaninterplanetarynetwork.【设计意图：通过问答带出含有语言点的句子。】3.Languagepoints(1)intheformof“以……的形式”—Wouldyoulikethefoodintheformofpills?—Ofcoursenot.Ihateeatingpillssofar.(2)three-eighths“八分之三”,基数词表示分子，序数词表示分母。如果分子大于1，分母要用复数形式。Three-fifths（五分之三）ofthestudentsinmyclassaregirls.(3)comparedwith/to“与……相比较”—Icomparedthefirstreportwiththesecond.—Youdidagoodjob.(4)sothat“以便”，表目的Weshouldplantmoretreessothatwecanhaveabetterenvironment.(5)haveacomputerconnectedto…过去分词短语作后置定语—Whatdoyoureadinyoursparetime?—ThebookswrittenbyHanHanaremyfavourite.【设计意图：让学生找出每句的知识点，老师归纳总结。】Step5Discussion1.Couldhumanssurviveonmarswithoutwater,oxygenorfood?2.CanyouthinkofsomesuggestionstoprotecttheEarth?【设计意图：让学生了解火星上的恶劣环境及人类生存的基本条件，通过讨论让学生增强保护地球的意识。】V.Homework1.Rememberthenewwords,phrasesandsentences.2.Retellthearticle.