外研版高中英语必修二课件-Unit-6-Earth-first--Section-Ⅰ

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SectionⅠStartingout&Understandingideas科学家警告:北极海冰的加速融化会造成不可控制的全球气候变化。MeltingArcticSeaIceCouldStartUncontrollableGlobalClimateChangeTherapidmeltingoftheArcticseaicecouldbeabouttobringaboutcatastrophic(灾难性的)eventsacrosstheworld,scientistshavewarned.Unit6EarthfirstTheeffectsofthemeltingicecouldbefeltasfarawayastheIndianOceanasthewarmweathersetsoff19globaltippingpoints(临界点),accordingtothenewArcticResilienceReport.Thosetippingpointshappenwhenanaturalsystemquicklychanges,leadingtogreateffectsonnearbyecosystemsthatmightneverbereversed(彻底转变).IntheArctic,theyincludegrowingvegetationthatstopssnowandiceandsoabsorbsmoreheat,andthereleaseofmethane(甲烷)fromtheArcticasitwarms.Thereportincludesarangeofdifferentdisastrouseventsthatarelikelytobeproducedbythewarmingpoles.Unit6EarthfirstThefindingscomejustasclimatescientistshavewarnedthatseaiceintheArcticappearstobemeltingfarmorequicklythanexpectedastheresultofhightemperatures.AiroverthePolaricecaphasbeen9-12degreesCelsiusaboveaverageoverthelastfourweeks,accordingtotheDanishMeteorologicalInstitute(DMI).Throughlastweek,temperaturesreachedmeltingpoint,puttingthemfarabovetheexpectedtemperatureandservingasadangeroussignalfortheseaicethere.Unit6EarthfirstThetemperatureis“byfarthehighestrecorded”,DMIresearcherMartinStendeltoldtheAFP.“Whatweareobservingisveryunusual.”Atthistimeofyear,theArcticOceanwouldbeexpectedtostartfreezingupintoseaiceagain.Butitisn’thappening.Unit6Earthfirst“Notonlywastheicenotgrowingasitwouldnormally,therewasfurthermeltingduetowarmaircomingin,”hetoldthenewsagency.Thateffectisbeingcausedbyanumberoffactors—notonlyclimatechange,butalsotemporaryweatherphenomenalikeElNiño.Butthosetemporary(短暂的)thingsarebeingstrengthenedbyclimatechange,whichisthefinaldriverofthemeltingseaice,scientistssaid.Unit6Earthfirst栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6Earthfirst重点单词阅读词汇(在不认识的单词前划√)□sharkn.□divev.栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6Earthfirst重点单词写作词汇1.________v.把……作为目标2.________n.(尤指通过行为表现出的对某事的一般)看法,态度拓展词汇3.________adj.使(某人)惊恐,吓唬→scaredadj.对……感到惊慌的;吓坏了的4.__________adv.幸运地→fortunateadj.幸运的;吉祥→fortunen.幸运;运气5.__________n.灭绝,绝种→extinctadj.绝种的;消亡了的targetattitudescarefortunatelyextinction栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6Earthfirst重点短语1.________恐惧,担心2.________________讲述……的故事3.________________________________害怕……4.________________由于,因为5.________________切断;阻断;隔绝6._____________________对……有影响infeartellthestoryofbescared/frightenedof/afraidofduetocutoffhaveaneffecton/upon栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6Earthfirst重点短语7.________________以……为基础/依据8.________________偶遇9.________________把……看作……10.________________从……时起11.________________错误地;疏忽地12.________________保护……免受……13._____________________提高对……的认识bebasedoncomeacrosssee...as...from...onbymistakeprotect...from...raiseawarenessof...栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6Earthfirst重点句型1.形容词(短语)作状语:Somepeoplestoppedswimminginthesea,___________________________________________(由于害怕电影里可怕的生物).2.was/weredoing...when...:In1980,Benchley________________(正在潜水就在这时)hecameacrossanawfulsight.3.部分否定:Fortunately,________________(并非每个人)whowatchedthefilmJawsbecameafraidofsharks—somebecameinterestedinunderstandingthem.afraidofthehorriblecreaturefromthefilmwhennoteveryonewasdiving栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6EarthfirstⅠReadthetextandfillintheblanks.BeforethefilmJaws↓Peoplehadalong­heldideathatthegreatwhitesharkis1..AfterthefilmJaws↓Peoplebecamemore2.ofsharks.Thenumberoflargesharksfellquicklyduetofearofsharksand3..栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6EarthfirstIn1980↓PeterBenchleyadmittedthathisbookwas4.aboutsharks’behaviour.Today↓Morepeoplewantto5.thesharksfromextinction.答案:1.dangerous2.scared3.finning4.wrong5.protect栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6EarthfirstⅡReadthetextcarefullyandchoosethebestansweraccordingtothetext.1.Whatisthewriter’spurposeofwritingthepassage?A.TorecommendthefilmJawsandthebooktopeople.B.TocriticizePeterBenchley’smisleadingdescriptionofsharks.C.Toraisepeople’sawarenessofsharkprotection.D.Toinformpeoplethatsharksaredangerous.栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6Earthfirst2.Accordingtothepassage,whichoneisWRONGaboutthefilmJaws?A.Awomandiedasaresultofashark’sattack.B.Itwaspopularwithhugeaudiences.C.Itchangedpeople’slong­heldideaofsharkasadangerousanimal.D.Itwonagreatreputationinthefieldoffilm.3.Whydidthenumberoflargesharksfallquickly?A.Becauseoftheclimatechange.B.Becauseofpeople’skillingandfinning.C.Becauseoflackingofenoughfood.D.Becauseofthepollutionoftheocean.栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6Earthfirst4.Nowadays,whatispeople’sattitudetowardsprotectingsharks?A.Neutral.B.Indifferent.C.Disapproval.D.Favorable.答案:1-4.CCBD栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6Earthfirstscarev.使(某人)惊恐;吓唬n.恐慌;恐惧(教材P62)Peoplehavealwaysbeenscaredofsharks,butJawsmadethingsworse.人们一直都害怕鲨鱼,但《大白鲨》使情况变得更糟。栏目导引要点透析讲练互动知能演练轻松闯关自学导引语篇理解Unit6Earthfirst(1)scare...away/off把……吓跑(2)scaringadj.令人害怕的;吓人的scaredadj.对……感到惊慌的;吓坏了的bescaredof害怕……bescaredtodo...害怕做……;不敢做……①HissuddenappearancegavemeascarewhenIwasreadinganinterestingbook.我正在读一本有趣的书,他的突然出现吓了我一跳。②Lastnightthesuddenthunder______(scare)thechildren.昨天晚上,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