2020高考英语一轮复习Unit3Underthesea教学案新人教版选修7.docx

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1、Unit3Underthesea三言两语1．Rubbishandwastewaterarebeingpouredintotheriver；asaconsequence，waterresourceshavebecomebadlypolluted.2．Weshouldadoptreducing，reusingandrecyclingapproachestosolvetheproblemandtakegoodcareofourenvironment.3．Withthenumberofcarsincreasingfastinourc

2、ity，ourenvironmentisgettingincreasinglyworse.1．众所周知，由于全球变暖，全球水资源短缺问题正变得日益严重。Itiswellknownthattheglobalwatershortageisbecomingincreasinglyseveremainlyduetoglobalwarming.2．现在，越来越多的人开始认识到，目前的环境与我们对地球的所作所为有很大关系。Nowmoreandmorepeoplebecomeawarethatthepresentenvironmentha

3、smuchtodowithwhatwehavedonetotheearth.[单词　拼写应用]核心单词1．witnessvt.当场见到；目击n．目击者；证人；证据2．oppositeprep.在……对面adj.相对的；相反的3．pausevi.&n.暂停；中止4．dragvt.拖；拉；扯5．neatadj.〈口〉好的；整齐的；匀称的6．fleevi.逃避；逃跑vt.逃离[语境运用]　用所给词的适当形式填空1．Theyear1849witnessed(witness)agreatwarinthatcountry.2．Scien

4、tificstudieshaveshownthatmakingahabitofpausing(pause)beforeyoudosomethingcanactuallyhaveabigimpactonhowyourlifeturnsout.3．Hearrivedatschoolearlyinthemorning，dragging(drag)hisheavyinstrumentcaseacrossthecampus.4．Peoplefled(flee)aimlesslyinterrorasthetsunamistruckthe

5、citywithoutanyprecaution.5．Totheirrelief，theirstudentsnarrowly(narrow)escapedfromtheshakingbuilding.7．meantimeadv.期间；同时8．narrowadj.狭窄的；有限的；狭隘的9．shallowadj.浅的；肤浅的；浅显的10．awesomeadj.使人敬畏的；令人畏惧的拓展单词1．accommodatevt.提供住宿→accommodationn．住所；住宿2．deepadj.&adv.深的(地)→depthn．深(

6、度)；深处→deeplyadv.深深地→deepenv．使加深；使强烈；变深3．urgevt.催促；极力主张；驱策→urgentadj.紧急的；迫切的4．abandonvt.放弃；遗弃；抛弃→abandonedadj.被遗弃的；放纵的5．reflectvi.思考vt.映射；反射；思考→reflectionn．反射；反映；映像6．awareadj.意识到的；知道的→awarenessn．意识；认识7．sharpadj.锐利的；锋利的；敏捷的→sharpenv．削尖；磨快；尖锐；变锋利8．tasten．味道v[语境运用]　用所给

7、词的适当形式填空1．Itwasascarystoryandchildrenwerescaredaftertheyheardit.(scare)2．Thoughthesoupistasty,I'velostmysenseoftasteandittastesjustliketastelesswater.(tasty)3．Thelakeisover20metersindepth．Sowewereallmoveddeeplybythemanwhodiveddeepintothelaketosavetheboy.(depth)4．So

8、meflowersarereflectedintheriverandthereflectionisverybeautiful.(reflect)5．Ifyoucan'tfindanyaccommodationselsewhere,hereisaroomwhichcanaccommodate