Unit9Lesson3EpidemicsExplained课件-高中英语北师大版选择性

UNIT9HUMANBIOLOGYLESSON3EPIDEMICEXPLAINED1.aninfectiousdisease2.alargenumberof3.withinashortperiodoftime4.twoweeksorless5.aslongas6.comeintocontactwith7.beclassifiedas8.acertainnumberof9.thenumberof一种传染病

3.在短时间内

4.两周或更短时间7.将......分类

扫清阅读障碍2.大量的5.只要......就

6.和......接触

8.一定数量的9........的数量10.asopposedto11.millionsof12.killerepidemics13.creativeamorepositivefuture14.gointodetail15.studytissuesample16.asaresultof17.onrecord18.getthrough10.相对于......12.致命的传染病

13.创造一个更美好的未来16.由于

扫清阅读障碍11.成百上千万

14.详细叙述

15.研究组织样本

17.有记载/记录的18.度过/熬过困难时期19.poseathreat20.beconfusedby21.infectionrates22.inthecourseof23.resultin24.contributeto25.leadto26.cause27.getover19.构成威胁

21.感染率

22.在......的过程中25.导致

扫清阅读障碍20.被......搞糊涂

23.导致

24.导致

26.导致27.从......中康复过来28.getat29.comeupwith30.assoonaspossible31.acrosstheglobe32.pressreport33.drawparallelsbetween...and...28.查明/发现

30.尽快

31.在全球范围内扫清阅读障碍29.提出/想出

32.媒体报道

33.将…...和…...相提并论

aninfectiousdiseasewithinashortperiodoftimetwoweeksorless

beclassifiedasasopposedto

creativeamorepositivefuturegointodetailasaresultofgetthrough详细叙述将......分类一种传染病由于相对于......度过/熬过困难时期两周或更短时间创造一个更美好的未来在短时间内速记小测BeforeReadingPredictionWhatisthegenre（体裁）ofthetext？A.NarrationB.ExpositionC.ArgumentationD.Paracticalwriting√9Part1(Para.1)A.Examplesofepidemicsinhistory.Part2(Para.2)B.Thedefinitionofanepidemic.Part3(Para.3-8)C.Waystodealwithepidemic.Part4(Para.9)D.Thecriteria(标准)ofidentifyinganepidemic.Readthetextquicklyandmatchmainideawitheachpart1.Whatisanepidemic?Para12.Howcanadiseasebeclassifiedasanepidemic?Para23.Iscommoncoldepidemic？Para2Circlealltheepidemicsmentionedinthepassage.（6个）birdflu1918SpanishFluTheBlackDeathSARSEbolaVirusDisease(EVD)Para4-8EpidemicsintheRomanEmpire4.Whatshoulddifferentcountriesdotopreventoutbreaksofepidemicsinthefuture?Why?Para9课文详解①Anepidemicisthename(giventoaninfectiousdisease)that

rapidlyspreadstoalargenumberofpeoplewithinashortperiodoftime—usuallytwoweeksorless.在短时间内大量的that引导定语从句过去分词短语作后置定语1．Anepidemicisthenamegiventoaninfectiousdiseasethatrapidlyspreadstoalargenumberofpeoplewithinashortperiodoftime—usuallytwoweeksorless.[句式分析]此句是____句。giventoaninfectiousdisease是过去分词短语作____，修饰thename，并与之构成____关系；that引导____从句，修饰_______________，其中that在从句中作____。[自主翻译]复合定语被动定语infectiousdisease主语流行病是指在短时间内(通常两周或更短)迅速在大量人群中传播的传染性疾病。EpidemicshavebeenhappeningforaslongastherehavebeenpeoplelivingonEarth.Theycanbecausedbyseveraldifferentfactors,只要在地球上由...造成suchasavirus

(beingcarriedintoanarea),orchangesintheway

(peoplelive),

likemorepeoplelivinginanarea,whichincreasesthechancesofthemcomingintocontactwithabacteriaorvirus.which引导非限制性定语从句comeintocontactwith

接触到V-ing的被动式

作后置定语，含义①virus与carry是被动关系

②“被携带”这个动作正在进行省略that的定语从句prep.比如②Eachdiseasecanonlyofficially

beclassifiedasanepidemiconce

acertainnumberofdeathshaveoccurredfromthedisease.Thenumberofdeathsisdifferentforeverydisease.Soaveryrarediseasewillhavealowbaselineandjustafewcasesofitinoneplacewillbe

一定数量的...的数量被归类为…一旦，只有病例classifiedasanepidemic;asopposedtomorecommondiseases(,suchastheflu,)thathaveahigherbaseline.Thecommoncoldisawidespread

virus

(thataffectsmillionsofpeople),butitisnotseenasbeingaseriousenoughconditiontodeservetheclassificationofepidemic.that引导的定语从句benotseenas不被看作相对于被归类为…that引导的定语从句③Withrecentpressreports

drawingparallelsbetweenbirdfluandkillerepidemicsofthepast,JimSmithlooksatthesometimesdepressinghistoryofepidemicsforcluesabout(howwecancreateamorepositivefuturewithoutepidemics.)drawparallelsbetween...and...将…和…相提并论新闻报道how引导的宾语从句创造一个更积极/美好的未来2．Withrecentpressreportsdrawingparallelsbetweenbirdfluandkillerepidemicsofthepast，JimSmithlooksatthesometimesdepressinghistoryofepidemicsforcluesabouthowwecancreateamorepositivefuturewithoutepidemics.[句式分析]此句是____句。With...ofthepast为with的复合结构作____，其中宾语pressreports和宾补drawingparallels...构成_____关系；howwecan...为____从句。[自主翻译]

复合状语主动宾语最近有新闻报道，吉姆·史密斯将禽流感和过去致命的流行病作对比，在屡屡令人感到沮丧的流行病史中寻找线索，从而创造一个远离流行病的美好未来。④Sincebirdflufirstappearedin1997,ithastakenmorethanahundredlives.Manypeople

fear

(itcouldbethenextglobalepidemic),especiallyasscientistswhohavegoneintodetail

studyingtissuesamplesfromthebodiesofpeople(whodiedofthe1918SpanishFlu)

haveprovedthatbirdfluisamodernadaptationofthatvirus.超过省略了that的宾语从句who引导定从that引导宾从who引导定从详细叙述研究组织样本3．Manypeoplefearitcouldbethenextglobalepidemic,especiallyasscientistswhohavegoneintodetailstudyingtissuesamplesfromthebodiesofpeoplewhodiedofthe1918SpanishFluhaveprovedthatbirdfluisamodernadaptationofthatvirus.[句式分析]此句是____句。Manypeoplefear后是省略了that的____从句；as引导的是____状语从句，译作“______________”；两个who引导的都是____从句，分别修饰scientists和people；proved之后的that引导____从句。[自主翻译]

复合宾语时间当……的时候定语宾语

科学家们仔细研究了1918年西班牙流感死亡者尸体的组织样本，证明禽流感是该病毒的现代变异版本，许多人担心它可能会引起下一场全球流行病。⑤Oneoftheearliestepidemicsonrecordhappenedbetweenabout500and550CE.Scientistsnowestimatethatupto50%ofthearea’spopulationdiedfromtheepidemic,makingitoneofthemaincausesofthefalloftheRomanEmpire.upto

多达在...和...之间之一记录的死于...现在分词短语作结果状语Then,inthe1330s,thisepidemicreturned,thistimeinAsia.ItspreadrapidlytoEuropeandbecameknownas“TheBlackDeath”becauseonevisible

symptomwasblackspotsonthebody.传播到被称为；以......出名⑥Centurieslater,theGreatFluEpidemicof1918,alsocalledtheSpanishFlu,struckneartheendofWorldWarⅠ.Families

(whohadonlyjustgotthroughthewar)nowhadtoburytheirlovedones

(whohaddiedofthedisease).Asaresultofthewar,morepeopleweretravellingandmovingperhapsthaneverbeforeinhistoryandthiscausedthewho引导的定语从句由于asaresult:因此前所未有getthrough

渡过(难关)striken.罢工,袭击v.侵袭，打击，罢工who引导的定语从句epidemictospreadworldwide.Havingkilled

upto50millionpeoplein18months,theSpanishFluisbelievedtohavebeenthemostsevereepidemicinhistory.Morepeoplediedofthefluthandiedinthewar.Initially,manypeoplebelievedthatsuchepidemicsnolonger

posedathreatuntilveryrecentlywhenSARSbecameacauseforconcern.adv.起初；开始构成威胁不再非谓语(doing)动作发生在谓语动作之前，用havingdone多达⑦TheSARSepidemicbeganin2002withacaseoflungdiseaseinGuangdongProvince.ItspreadtoCanada,VietnamandSingaporeandlasteduntil2003.SARSwasexaminedby

scientists,(who

wereconfusedbythisnewdiseaseandwantedtolearnmoreaboutitanditscauses.)

beconfusedby对...困惑蔓延到肺部疾病病例被...检测who引导非限制性定语从句Infectionrateswentup

steadily,andinthecourseoftheoutbreak,about8,000peoplewereinfectedoverninemonths.SincetheendoftheSARSepidemic,scientistshavebeendoing

trialsontreatmentstopreventanyfutureoutbreaks.dotrialson...做关于...的试验感染率goup增长;上升在...的过程中/期间⑧Then,from2013to2016,therewasthemostwidespreadoutbreakoftheEbolaVirusDisease(EVD)inWestAfrica,which

resultedin

amajorlossoflifeinanumberofwestAfricancountries.resultin导致从...到...which引导非限制性定语从句许多11,310deathswereofficiallyrecorded,buttheactualnumberofdeathsisprobablymuchhigher.Theviruswasextremelyinfectiousandthesurvivalratewasaslowas30%insomeareas,indicatingthatveryfewpeoplegotoverit.getover克服，康复存活率像...一样；如同⑨Despite,orperhapsbecauseof,theepidemics

(theworldhasfacedinrecentyears,)governmentsworldwidehaveunderlinedthefact

that

theywantthoroughandsystematicmedicalresearchonepidemicstogetatthecausesandcomeupwithcuresassoonaspossible.that引导同位语从句近年来尽管因为查明提出；想出尽快省略that的定语从句4.Despite，orperhapsbecauseof，theepidemicstheworldhasfacedinrecentyears，governmentsworldwidehaveunderlinedthefactthattheywantthoroughandsystematicmedicalresearchonepidemicstogetatthecausesandcomeupwithcuresassoonaspossible.[句式分析]此句是____句。Despite，orperhaps...inrecentyears作____，其中theworldhasfacedinrecentyea