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选修七Unit3Underthesea课前三言两语三言1．Rubbishandwastewaterarebeingpouredintotheriver；asaconsequence，waterresourceshavebecomebadlypolluted.2．Weshouldadoptreducing，reusingandrecyclingapproachestosolvetheproblemandtakegoodcareofourenvironment.3．Withthenumberofcarsincreasingfastinourcity，ourenvironmentisgettingincreasinglyworse.两语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。_______________________theglobalwatershortageisbecomingincreasinglyseveremainlyduetoglobalwarming.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。Nowmoreandmorepeoplebecomeawarethatthepresentenvironmenthasmuchtodowith.whatwehavedonetotheearthItiswellknownthat基础知识梳理[单词拼写应用]核心单词1．vt.当场见到；目击n．目击者；证人；证据2．prep.在……对面adj.相对的；相反的3．vi.&n.暂停；中止4．vt.拖；拉；扯5．adj.〈口〉好的；整齐的；匀称的witnessoppositepausedragneat核心单词6．vi.逃避；逃跑vt.逃离7．adv.期间；同时8．adj.狭窄的；有限的；狭隘的9．adj.浅的；肤浅的；浅显的10．adj.使人敬畏的；令人畏惧的fleemeantimenarrowshallowawesome[语境运用]用所给词的适当形式填空1．Theyear1849(witness)agreatwarinthatcountry.2．Scientificstudieshaveshownthatmakingahabitof(pause)beforeyoudosomethingcanactuallyhaveabigimpactonhowyourlifeturnsout.3．Hearrivedatschoolearlyinthemorning，(drag)hisheavyinstrumentcaseacrossthecampus.witnessedpausingdragging4．People(flee)aimlesslyinterrorasthetsunamistruckthecitywithoutanyprecaution.5．Totheirrelief，theirstudents(narrow)escapedfromtheshakingbuilding.narrowlyfled拓展单词1．accommodatevt.提供住宿→n．住所；住宿2．deepadj.&adv.深的(地)→n．深(度)；深处→adv.深深地→v．使加深；使强烈；变深3．urgevt.催促；极力主张；驱策→adj.紧急的；迫切的4．abandonvt.放弃；遗弃；抛弃→adj.被遗弃的；放纵的accommodationdepthdeeplydeepenurgentabandoned拓展单词5．reflectvi.思考vt.映射；反射；思考→_________n．反射；反映；映像6．awareadj.意识到的；知道的→_________n．意识；认识7．sharpadj.锐利的；锋利的；敏捷的→________v．削尖；磨快；尖锐；变锋利8．tasten．味道v．品尝→_______adj.好吃的；可口的→_______adj.无味的9．scarevt.恐吓vi.受惊吓→_____adj.恐惧的；害怕的→_____adj.恐怖的；可怕的reflectionawarenesssharpentastytastelessscaredscary[语境运用]用所给词的适当形式填空1．Itwasastoryandchildrenwereaftertheyheardit.(scare)2．Thoughthesoupis,I'velostmysenseofanditjustlikewater.(tasty)3．Thelakeisover20metersin．Sowewereallmovedbythemanwhodivedintothelaketosavetheboy.(depth)scaryscaredtastytastetastestastelessdepthdeeplydeep4．Someflowersareintheriverandtheisverybeautiful.(reflect)5．Ifyoucan'tfindanyelsewhere,hereisaroomwhichcanuptofivepeople.(accommodation)6．Itisthatwe(should)finishthejobinsuchtime.(urge)reflectedreflectionaccommodationsaccommodateurgedurgent阅读单词1．anecdoten．2．migrationn．3．seasiden．&adj.4．yellvi.n．叫声；喊声轶事；奇闻迁徙；迁居；移居海边(的)；海滨(的)大叫；呼喊5．jogvi.vt.6．pureadj.7．tiden．8．flashlightn．9．greyadj.&n.慢跑轻推；轻撞纯的；纯粹的；纯洁的潮(汐)；潮水；潮流闪光信号灯；手电筒；闪光灯灰色(的)10.steepadj.11．boundaryn．12．conservationn．13．suckvt.&vi.14．sealn．15．pensionn．养老金；退休金陡峭的界限；分界线保存；保护吮吸海豹；封条；印章1．(2017·浙江卷)Italy,whichhasamuchweakertraditionofimmigration,haswitnessedasharpincreaseinimmigrationinrecentyears.2．(天津卷)Parentsandchildrenshouldcommunicatemoretonarrowthegapbetweenthemsothattheycanunderstandeachotherbetter.缩小急剧的[短语多维应用]高频短语1．瞄准2．靠近3．举起；阻止4．对……知道、明白；意识到……5．吓死了(be)scaredtodeathaimatgetclosetoholdupbe/becomeawareof[语境运用](填入一个适当的词)OnceI，togetherwithmyparents，visitedQingdaoOceanWorld.Tomyjoy，Icouldgetclose①thesharkintheaquarium.AlthoughIwasaware②thesharkinthetank，Iwasnearlyscared③deathwhenthesharkswamtome.toofto高频短语6．在……之前7．帮助(某人)摆脱困境或危难8．上下翻转9．在此期间10．即将；将要beabouttoaheadofhelp(...)outupsidedowninthemeantime[语境运用](填入一个适当的词)④themeantime，thereweremanyvisitorsahead⑤us.Theywerealsoscaredtoscream.Wewere⑥togotoseeotherfisheswhenthesharkturnedaround.Luckily，itwasthefeederthatdrewitsattentionandhelpedus⑦．Whatanexcitingexperiencewehadunderthesea！Inofaboutout[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。_______________________________________computergames.ItwasatimewhenIwasaddictedtoplaying2.“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。Ithepowerwascutoff.wasabouttodomyhomeworkwhen3.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,weshouldlearntostandup.wherewefall重难考点探究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,Ifeelanurge(make)myvoiceheard.tomake②a.(江苏卷)Parentsshouldactivelyurgetheirchildren(take)advantageoftheopportunitytojoinsportsteams.b．(江西卷)Inordertoimprovelearningefficiency,Iurgethatallofus(form)thehabitofthinkingindependentlyandreviewinglessonsintime.(should)formtotake③a.(重庆卷)—Mustyouinterruptnow？Can'tyouseeI'monthephone?—SorrySir，butit's(urge)．b．Theattackaddedanewurgencythatpeacetalk.tourgent[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。①Ourteacherwiththefinalexamdrawingnear.②Ourteacher,asthefinalexamisdrawingnear.urgesthatwe(should)studyhardurgesustostudyhard2．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