2020高考英语一轮复习 Unit 3 Under the sea教学案 新人教版选修7

Unit3Underthesea三言两语1．Rubbishandwastewaterarebeingpouredintotheriver；asaconsequence，waterresourceshavebecomebadlypolluted.2．Weshouldadoptreducing，reusingandrecyclingapproachestosolvetheproblemandtakegoodcareofourenvironment.3．Withthenumberofcarsincreasingfastinourcity，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。Nowmoreandmorepeoplebecomeawarethatthepresentenvironmenthasmuchtodowithwhatwehavedonetotheearth.[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[语境运用]用所给词的适当形式填空1．Theyear1849witnessed(witness)agreatwarinthatcountry.2．Scientificstudieshaveshownthatmakingahabitofpausing(pause)beforeyoudosomethingcanactuallyhaveabigimpactonhowyourlifeturnsout.3．Hearrivedatschoolearlyinthemorning，dragging(drag)hisheavyinstrumentcaseacrossthecampus.4．Peoplefled(flee)aimlesslyinterrorasthetsunamistruckthecitywithoutanyprecaution.5．Totheirrelief，theirstudentsnarrowly(narrow)escapedfromtheshakingbuilding.vt.逃离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(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[语境运用]用所给词的适当形式填空1．Itwasascarystoryandchildrenwerescaredaftertheyheardit.(scare)2．Thoughthesoupistasty,I'velostmysenseoftasteandittastesjustliketastelesswater.(tasty)3．Thelakeisover20metersindepth．Sowewereallmoveddeeplybythemanwhodiveddeepintothelaketosavetheboy.(depth)4．Someflowersarereflectedintheriverandthereflectionisverybeautiful.(reflect)5．Ifyoucan'tfindanyaccommodationselsewhere,hereisaroomwhichcanaccommodateuptofivepeople.(accommodation)6．Itisurgedthatwe(should)finishthejobinsuchurgenttime.(urge)8．tasten．味道v．品尝→tastyadj.好吃的；可口的→tastelessadj.无味的9．scarevt.恐吓vi.受惊吓→scaredadj.恐惧的；害怕的→scaryadj.恐怖的；可怕的阅读单词1．anecdoten．轶事；奇闻2．migrationn．迁徙；迁居；移居3．seasiden．&adj.海边(的)；海滨(的)4．yellvi.大叫；呼喊n．叫声；喊声5.jogvi.慢跑vt.轻推；轻撞6．pureadj.纯的；纯粹的；纯洁的7．tiden．潮(汐)；潮水；潮流8．flashlightn．闪光信号灯；手电筒；闪光灯9．greyadj.&n.灰色(的)10.steepadj.陡峭的11．boundaryn．界限；分界线12．conservationn．保存；保护13．suckvt.&vi.吮吸14．sealn．海豹；封条；印章15．pensionn．养老金；退休金1．(2017·浙江卷)Italy,whichhasamuchweakertraditionofimmigration,haswitnessedasharpincreaseinimmigrationinrecentyears.急剧的2．(天津卷)Parentsandchildrenshouldcommunicatemoretonarrowthegapbetweenthemsothattheycanunderstandeachotherbetter.缩小[短语多维应用]高频短语1．aimat瞄准2．getcloseto靠近3．holdup举起；阻止4．be/becomeawareof对……知道、明白；意识到……5．(be)scaredtodeath吓死了[语境运用](填入一个适当的词)OnceI，togetherwithmyparents，visitedQingdaoOceanWorld.Tomyjoy，Icouldgetclose①tothesharkintheaquarium.AlthoughIwasaware②ofthesharkinthetank，Iwasnearlyscared③todeathwhenthesharkswamtome.6．aheadof在……之前7．help(...)out帮助(某人)摆脱困境或危难8．upsidedown上下翻转9．inthemeantime在此期间10．beaboutto即将；将要[语境运用](填入一个适当的词)④Inthemeantime，thereweremanyvisitorsahead⑤ofus.Theywerealsoscaredtoscream.Wewere⑥abouttogotoseeotherfisheswhenthesharkturnedaround.Luckily，itwasthefeederthatdrewitsattentionandhelpedusout．Whatanexcitingexperiencewehadunderthesea！[句式结构仿写]教材原句背诵句式仿写应用1．Itis/wasatimewhen...“曾经一度……”，when引导定语从句Itwasatimewhenthekillerwhales，or“killers”astheywerethencalled，helpedthewhalerscatchthebaleenwhalesthatwereontheirannualmigration.我曾一度迷恋网络游戏。ItwasatimewhenIwasaddictedtoplayingcomputergames.2.“beaboutto＋动词原形”表示即将发生的事情Thiswasthecallthatannouncedtherewasabouttobeawhalehunt.我正要做作业这时停电了。Iwasabouttodomyhomeworkwhenthepowerwascutoff.3.where引导地点状语从句Thewaterwasquiteshallowbutwherethereefended，therewasasteepdroptothesandyoceanfloor.作为年轻人，我们应该学会在我们跌倒的地方站起来。Asyoungmen,weshouldlearntostandupwherewefall.1．urgevt.催促；极力主张；驱策n．强烈的欲望；冲动(1)urgesb.todosth.催促某人做某事urgethat...(should)dosth.极力主张；强调……(2)have/feelanurgetodosth.渴望做某事(3)urgentadj.紧急的；迫切的urgencyn．紧急；催促inurgentneedofmoney迫切需要钱[基础练习]——单句语法填空①(2019·天津卷)Hearingthatyou'llgiveusalectureaboutwesternartandwanttohearouropinionsaboutwhichtopictocover,Ifeelanurgetomake(make)myvoiceheard.②a.(江苏卷)Parentsshouldactivelyurgetheirchildrentotake(take)advantageoftheopportunitytojoinsportsteams.b．(江西卷)Inordertoimprovelearningefficiency,Iurgethatallofus(should)form(form)thehabitofthinkingindependentlyandreviewinglessonsintime.③a.(重庆卷)—Mustyouinterruptnow？Can'tyouseeI'monthephone?—SorrySir，butit'surgent(urge)．b．Theattackaddedanewurgencytothatpeacetalk.[链接写作]——一句多译随着期末考试的来临，老师敦促我们努力学习。①Ourteacherurgesustostudyhardwiththefinalexamdrawingnear.②Ourteacherurgesthatwe(should)studyhard,asthefinalexamisdrawingnear.2．abandonvt.遗弃；抛弃；放弃；中止；(与oneself连用)使放纵，使听任n．放任；放纵(1)abandondoingsth.放弃做某事abandononeselftodoingsth.沉湎于做某事；放纵(感情)于做某事(2)withabandon纵情；放任地(3)abandonedadj.抛弃了的；废弃的；放纵的anabandonedfarm废弃的农场abandonananimal遗弃动物abandonhimselftodespair陷入绝望[基础练习]——单句语法填空①a.(20