Unit-4-Natural-Disasters-(课文课件)-【新教材】人教版2019英语高一上册

Unit4NaturalDisastersText——UnitedNationsInternationalStrategyforDisasterReductionLivetoTell:RaisingAwareness,ReducingMortality.教学目标与要求•核心素养•语言能力：主题：自然灾害•词汇：disaster,drought,slide,flood,rescue,damage,destroy…•语法：复习that,which,who引导的定语从句；学习whose引导的定语从句；能够运用关系代词引导的定语从句描述事物的具体信息。•学习能力：掌握阅读中根据上下文猜测词义，能够运用构词法推测词义。•文化意识：了解国内外发生过的重大自然灾害，树立防灾保护意识。•思维品质：实践中运用所学知识应对与灾害有关的困难，增强解决问题的能力。ListeningandSpeakingPronunciation辅音字母的发音pipebricktenddeathkeengloryfondviewthinktheycampusamazeflashgarageFrenchbridgetrulydraweventsfriendsConsonantsPronunciation-ed的发音/t/helpedlaughedembarrassedshockedwatchedwished/d/beggedbreatheddescribedconfusedexchangedlearnedreservedviewed/id/concentrateddebateddependedpretendedReadingandThinkingLanguagePoint1,Itseemedasiftheworldwerecomingtoanend!asif是一个连词结构，用来引导从句，翻译为“好像；似乎；仿佛”。从句根据说话人所陈述内容的真实性或可能性，可用陈述语气或虚拟语气。Thepotissmoking.Itlooksasifthefoodisovercooked.Hetalksasifheweretheboss.注意：asif=asthough好像Exercises.一.asif从句用陈述语气：这里说的从句用陈述语气,是相对于虚拟语气而言的。即所表达的句子是真实的或极有可能发生或存在的事实时。设想语境：你现在屋里看不到外面的情况,却听到了雨滴声，表达如下:Itsoundsasifitisraining．例句：Itlooksasifitisgoingtorain.Hetalksasifheisdrunk.Helookedasifhewasill.Exercises.二.asif从句用虚拟语气，当说话人认为句子所述的是不真实的或极少有可能发生或存在的情况时。从句虚拟语气动词时态的形式如下：（1）从句表示与现在事实相反，谓语动词用一般过去时。（2）从句表示与过去事实相反，谓语动词用“had＋过去分词”。（3）从句表示与将来事实相反，谓语动词用“would／could／might＋动词原形”。例句：1，Youlookasifyoudidn’tcare.Helefttheroomasifhewasangry.2，ShetalkedabouttheGreatWallasifshehadbeentherebefore.3，Itlooksasifitmightrain.LanguagePoint2,Itseemedasiftheworldwerecomingtoanend!cometoanend意为“结束”，与theworld搭配，表示“世界末日来临”。此外，cometo还表示“达成；得到”。cometoadecision做出决定cometoaconclusion得出结论cometoanagreement达成一致cometo总计；苏醒；继承；达成；来到（某地）；谈及，涉及Theyfinallycometoanagreementafteralongdiscussion.Whenitcomestospeaking,noonecanmatchhim.Whenitcomestophotography,I’mnotanadept.Whenyoucometotheendofthestreet,you’llfindarestaurant.Whenitcomesto…意为“”。LanguagePoint3,Nearlyonethirdofthewholenationfeltit!Onethird表示“三分之一”。英语中分数词由基数词+序数词构成，分子用基数词，分母用序数词。当分子大于一时，分母用复数。如：1/8oneeighth2/3two/thirds3/4threefourths25/6twoandfivesixthsIfanappleiscutintosixequalslices,eachsliceiscalledonsixth.Ifyoueattwoslices,youeattwosixthsononethird.LanguagePoint4,Hardhillsofrockbecameriversofdirt.这是一个隐喻（metaphor）的修辞手法，将泥石流比喻成河流。在使用隐喻来进行描述的时候，通常把被描写的事物比喻成与之相似的事物，但不在句子中使用like，as等表示“像”的词语。Iwasmovedbyhersunnysmile.Hehasaheartofstone.LanguagePoint明喻（simile）的修辞手法不同于隐喻，它是直接在句子中使用like，as，as…as等表示“像”的词语来明确的比喻和描述。基本格式是AislikeB或者Aisas…asB.Brickscoveredthegroundlikeredautumnleaves.Myheartislikeasingingbird.Heisasstrongasahorse.(健壮如牛）astrueasasteel(绝对可靠）Thepenistoawriterwhatthegunistoasoldier.LanguagePoint5,Everywheresurvivorslooked,therewasnothingbutruins.Everywhere在句中用作连词，引导状语从句。意为“无论哪儿”。Everywherewego,wehearpeoplepredictingtheelectionresults.Everywheretheyappeared,theywerewelcomedwithapplauseandflowers.LanguagePoint6，…thearmysent150,000soldierstoTangshantodigoutthosewhoweretrappedandtoburythedead.thedead意为“死者；逝者”。“the+形容词转化而来的名词”表示具有该形容词意义特征或状态的“人”或“物”，为集合概念。这类名词没有复数词尾，但通常当作复数用。Theoldsometimeshelptheyoungtoenrichtheirsocialexperiences.Lifecanbedifficultforthedisabled.LanguagePoint7,…allofitshospitalsweregone.gone是go的过去分词形式，在句中作表语，表示“消失不见”。这种过去分词可以跟在系动词（be，appear，feel，remain，look等）之后，构成系表结构，表示主语的状态。Thedoorislocked.Heseemedshocked.Shelookedpuzzled.LanguagePoint8，Slowly，thecitybegantobreatheagain.这句话运用了拟人（personification）的修辞手法，把事物人格化，将事物变成和人一样，会作出动作或拥有感情。Thewindwhisperedthroughdrygrass.Thewildfireswallowedtheentireforest.ReadingforWriting语法知识难点LanguagePoint1,InSriLanka,some1,600kilometerswestofthequakecentre,thenumberofdeathsstoodat2498…standatsth.表示“达到特定水平（或数量，高度等）”。Itissaidthatthehighestdeathtollcausedbylightningstrikestandsat91,whenaplanewasstruckandcrashedintotheAmazonrainforestin1971.LanguagePoint见课本P92Wednesdaynightsawthedestructionoftheveryheartofthecity.星期三的晚上，城市的中心被毁了。用表示时间或地点的名词做主语，和see构成主谓结构，表示“（人们在）这段时间经历了（某事）。Thisyearhasseenabigincreaseinpopulation.witness也有此用法，表示“见证；经历”。The1980switnessedincreasingunemploymentthroughoutEurope.LanguagePointP92NeverinallofSanFransisco’shistorywereherpeoplesokindasonthisnightofterror.Neverbeforeinhistoryhasacitybeensocompletelydestroyed.英文中表示否定的副词位于句首时，句子要用部分倒装。该类副词还包括：seldom，little，notuntil,Bynomeans,undernocircumstances,notonly(but…also…),hardly/scarcely(…when…),nosooner(…than…)等。LanguagePoint英文中表示否定的副词位于句首时，句子要用部分倒装。该类副词还包括：seldom，little，notuntil,Bynomeans,undernocircumstances,notonly(but…also…),hardly/scarcely(…when…),nosooner(…than…)等。Notuntilyesterdaydidhechangehismind.Bynomeanswillthismethodwork.Undernocircumstancewillwedoharmtohim.•1，Memorizethenewwords.(15wordsperday).2，Reciteabeautifulsentenceperday.3，Dosomeexercises.HomeworkThanksforListening!