Unit3Backtothepast古罗马帝国不仅仅在政治上强大,版图上辽阔,在哲学、文学、建筑等方面它所创造的古罗马文化,也是全人类巨大的精神财富和世界古典文化中的瑰宝。然而,你知道它是怎样瓦解的吗?Scientificassumption:therealcauseoftheRomanEmpirecollapsingClimatechangecouldhavebeenresponsibleforbringingdowntheRomanEmpire,scientistsbelieve.Researchersstudiedancienttreegrowthringstoshowlinksbetweenclimatechangeandmajoreventsinhumanhistorysuchasmigrations,plaguesandtheriseandfallofempires.Theydiscoveredthatperiodsofwarm,wetweathercoincidedwithperiodsofprosperity,whiledroughtsorvaryingconditionsoccurredattimesofpoliticalupheavalsuchasthedemiseoftheRomanEmpire.Tomatchtheenvironmentalrecordwiththehistoricalone,researcherslookedatmorethan7,200treefossilsfromthepast2,500years.Thestudy,publishedinthejournalScience,said:Theriseandfallofpastcivilizationshavebeenassociatedwithenvironmentalchange,mainlyduetoeffectsonwatersupplyandagriculturalproductivity,humanhealthandcivilconflict.WetandwarmsummersoccurredduringperiodsofRomanandMedievalprosperity.IncreasedclimatevariabilityfromAD250to600coincidedwiththedemiseoftheWesternRomanEmpireandtheturmoiloftheMigrationPeriod.[阅读障碍词]1.assumption假设,假定2.collapse崩溃,瓦解3.migration迁移,移居4.coincidedwith与……相一致5.prosperity繁荣,昌盛6.fossil化石[诱思导读]根据短文内容,回答下列问题1.What'stherealcauseoftheRomanEmpirecollapsingaccordingtoscientists?Climatechange.2.Whyistheriseandfallofempiresassociatedwithenvironmentalchange?Becauseitaffectswatersupplyandagriculturalproductivity,humanhealthandcivilconflict.SectionⅠReading(Ⅰ)(Welcometotheunit&Reading)Ⅰ.匹配下列单词的词性及汉语意思()1.civilizationA.vt.兴建,创建()2.foundB.vt.&vi.逃避,逃跑;迅速离开()3.pourC.vt.毁坏,摧毁()4.decorateD.vt.装饰,装潢()5.disasterE.n.废墟;毁坏vt.破坏,毁灭()6.destroyF.vi.涌流,倾泻vt.倒出(液体)()7.commercialG.n.灾难()8.ruinH.n.文明()9.fleeI.adj.商业的,贸易的()10.remainsJ.n.遗物,遗迹,遗骸[答案]1-5HAFDG6-10CIEBJⅡ.选择下列句中词组的汉语意思A.保护……免受……B.消减C.和……一起D.出故障E.结果F.活埋1.Hetriedtocutdownonsmokingbutfailed.2.Theycouldnothaveforeseenhowthingswouldturnout.3.Hewasburiedaliveintheearthquake.4.Hesenthersomerosestogetherwithaloveletter.5.Themothertriedtoprotectherbabyfromeverydanger.6.Themachinebrokedownatthebusytime.[答案]1-6BEFCADLostcivilizationsDay1,15JulyIfeelluckytohavewonaplaceonthistrip.WeareinItalynow,andtomorrowwearevisitingPompeii.NextweekweareflyingtoChina,andgoingtoLoulan,①whichisknownasChina'sPompeiiinthedesert.BothPompeiiandLoulanbecamelostcivilizationslongago.Day2,16JulyThismorningweattendedalecture(讲座)aboutPompeii.Thecitywasfoundedinthe8thcenturyBC.In89BC,theRomanstookover(夺取)Pompeii.Itthenbecamearichandbusycity.②Nearthecitywasavolcano(火山).On24AugustAD79,thevolcanoerupted(爆发)andlava,ash(灰烬)androckspouredoutofitontothesurroundingcountryside.Itcontinuedtoeruptforthenexttwodays.Manypeoplewereburiedalive,and③sowasthecity.Howunfortunate(不幸的)!失落的文明第一天,7月15日能获得这次旅行的机会我感到幸运。现在我们在意大利,明天我们将游览庞贝。下周我们会飞往中国并打算去楼兰,那是沙漠中的一座被誉为“中国庞贝”的古城。庞贝和楼兰都是很久以前失落的文明。第二天,7月16日今天上午我们听了一场有关庞贝的讲座。这座城市兴建于公元前8世纪。公元前89年,罗马人占领了庞贝。后来庞贝成了一...