Unit2Topic2SectionD学案初中英语九年级全一册

Unit2Topic2SectionD【学习目标】1.复习本话题所学词汇、句型和语法。2.通过whquestions(如:what,why等),理解短文意思,读懂有关自然资源的文章。3.通过对水资源现状的了解,认识到自然资源对人类的重要性,加入保护环境、珍惜资源的队伍中。【预习导学】一、生词速查1.v.防止,避免

2.n.发现,找到→n.发现→

v.覆盖

3.adj.缺水的;(口)渴的

4.adv.几乎,将近

5.n.法律,法令;定律

二、短语速记1.大量

2.解决问题

3.一天天地

4.被……覆盖

5.短缺;缺少

6.饮用水

7.淡水

三、句子速译1.Howcanweavoidaseriouswatershortage?______________________________________________________________2.Butpeople'sneedforwaterisincreasingdaybyday.______________________________________________________________3.Whilenearly3/4oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.______________________________________________________________4.Theseaseemstohavethebestanswer.______________________________________________________________5.Let'stryourbesttosavewaterandourplanet.______________________________________________________________四、想一想预习课本1a,展示几幅贫困地区人们缺乏生活用水的图片,让学生讨论下列问题。1.Whyarethepeoplethereshortofwater?______________________________________________________________2.Howcanweavoidaseriouswatershortage?______________________________________________________________【答案】一、1.avoid2.discoverdiscoverycover3.thirsty4.nearly5.law二、1.plentyof2.solvetheproblem3.daybyday4.becoveredwith5.beshortof6.drinkingwater7.freshwater三、1.我们怎么才能避免水资源严重短缺?2.但人们对水的需求正与日俱增。3.虽然地球表面近四分之三被水覆盖,但我们仍旧缺乏饮用水。4.大海似乎有最好的答案。5.让我们尽力节约水,挽救地球吧。四、1.Becausethewaterthereisseriouslypolluted.2.Weshouldsavewaterandnotwasteit.Weshouldalsostoppeoplepollutingwater.【合作探究】任务驱动一重点归纳独自完成课本Grammar部分的填空。ofuslikespollution.

Don'tspitinpublic.

shouldcareforwildanimalsandplantmoretrees.

Weshoulddowecantoprotecttheenvironment.

任务驱动二阅读训练1.读课文第一遍,用正确的顺序排列段落。(Key:)

2.读课文第二遍,找出每一段的中心句。第一段中心句:______________________________________________________________第二段中心句:______________________________________________________________第三段中心句______________________________________________________________3.读课文第三遍,回答课本1b的问题。(1)Whyisourworldthirstywhen3/4oftheearthiscoveredwithwater?______________________________________________________________(2)Whatcanwedonowtoavoidthewatershortage?______________________________________________________________(3)Whatwillbethebestwaytosolvetheprobleminthefutureinthepassage?______________________________________________________________任务驱动三小组讨论1.小组讨论保护和节约水的不同方法,每组派代表进行全班展示。NamesWaysofprotectingandsavingwater2.写一篇校学生会发出的关于节约用水的倡议书。Mydearfriends,Waterisveryimportanttohumanbeings.Let'sdosomethingtoprotectandsaveit.First,Second,Third,Let'stryourbesttosavewaterandourplanet.【答案】任务驱动一NoneanywhereEveryoneeverything任务驱动二1.3212.Althoughtheworldishungry,itiseventhirstier.Howcanweavoidaseriouswatershortage?Theseaseemstohavethebestanswer.3.(1)Becauseabout97%ofthewaterontheearthisseawater.wecan'tuseitforwateringplantsordrinkingdirectly.(2)First,weshouldsavewaterandnotwasteit.Second,weshouldprotectourwaterresourcesandnotpollutethem.Third,weshoulddiscoverwaystoreusewater.(3)Tofindcheaperwaysoftakingthesaltawayfromtheseawater.任务驱动三2.Mydearfriends,Waterisveryimportanttohumanbeings.Let'sdosomethingtoprotectandsaveit.First,weshouldprotectourwaterresourcesandnotpollutethem.Thegovernmentshouldalsopasslawsagainstthewaterpollution.Second,weshouldsavewaterinourdailylife,turnoffthetapsintime,takeashowerinsteadofabath,andalwaysremembertocollectandreusewater.Third,let'strytospreadthemessageaboutprotectingandsavingwater.Makemorepeoplearoundusknowtheproblemofwatershortageandhowtohelpsolveit.Let'stryourbesttosavewaterandourplanet.StudentUnion【知识超市】[命题点一]avoid的用法

●Howcanweavoidaseriouswatershortage?我们怎样避免严重的水短缺?◎观察思考:1.Hehasbeenavoidingme/myeyesallweek.整整一个星期他一直在回避我/躲避我的目光。2.Weshouldavoidtalkingwithstrangers.我们应该避免与陌生人说话。◎用法总结:avoid作动词,意为“防止;避免”。在用法上可以构成如下结构:1.avoidsb./sth.,意为“避开某人/某事”。2.avoiddoingsth.,意为“避免做某事”。对点自测按要求完成下列句子1.Noonecanbeperfectandavoid(make)mistakes,sowhatwecandoistolearnsomethingfromthem.(填空)

2.为了避免路上交通拥挤,有些人宁愿夜间驱车出行,白天休息。(翻译句子)Inordertoontheroads,somepeopleprefertotravelatnightandrestduringtheday.

【答案】1.making2.avoidtheheavytraffic[命题点二]seem的用法

●Theseaseemstohavethebestanswer.大海似乎有最好的答案。◎观察思考:1.Tomseems(tobe)averycleverboy.汤姆看上去是一个很聪明的男孩。2.Everythingseemseasy.一切似乎很容易。3.Themoonseemstochangeitsshape.月亮好像在变换形状。4.Itseemsthatyouwerelying.看来你在说谎。◎用法总结:seem用作连系动词或不及物动词,意为“似乎;好像;看来”。常用在以下结构中:1.“主语+seem+(tobe)+表语”此时seem为连系动词,后直接接形容词或tobe+形容词或名词(短语)作表语,以说明主语的特征或状态。2.主语+seem+不定式3.seem常用于it作形式主语的“Itseems/seemedthat...”结构中。该结构中it作形式主语,“that...”是真正的主语。对点自测把下列句子翻译成英语1.他似乎病了。___________________________________________