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1、Unit5ThepowerofnatureⅠ.阅读理解(建议用时16′)A[2017·长沙一模]EvidenceofviolentstormsthatdestroyedalosttownknownasBritain'sAtlantishasbeenuncovered.ThefindswereuncoveredoffthecoastofDunwich,Suffolk—asmallvillagewhichinthe11thcenturywasoneofthelargesttownsinEngland.Th
2、etownwashitbyaseriesofstormsinthe13thand14thcenturiesandisnowlargelybelowthesea.Researcherssaidsediment(沉积物)gatheredfromthecliffsindependentlyprovedthehistoricalrecord.“Theywerelikethesouthcoaststormsof2013,atleastonceayearfordecades，”ProfessorDavidSear
3、,oftheUniversityofSouthampton,said.ThethreeyearresearchonDunwichhasbeenfundedbyTouchingtheTide,a￡900,000HeritageLotteryFundplantoexplorethechangingSuffolkcoast.Adiverusedultrasound(超声波)to“illuminate”findingsontheseabed,andthemarshes(沼泽)anderodingcliffsw
4、eresurveyed.“Itoffersamarveloushistoryofclimatechangeandcoastalerosion，”saidProf.Searwithregardtothefindings.Inthe11thcentury,Dunwichwasthe10thlargesttowninEngland,butnowhasabout120residents.Twogreatstormsin1286and1326resultedinthelossofitsharbourandsta
5、rteditsdecline.Prof.SearsaidanalysisshowedhowpeoplegaveuponDunwichafter1338,whenanothergreatstormchokeduptheportforgood,andfoodproductiondeclined.“Sedimentgatheredfromthecliffs，”hesaid,“independentlyconfirmedthesequencesofstormsrecordedinthehistoricalre
6、cord.”Theunderwaterresearchhasbeencarriedoutusingacoustic(声音的)imagingtechnology,andhasunearthedaseriesofbuildings.Wefoundtheruinsofaboutfourchurchesandwe'vealsofoundruinsofwhatwethinkwasatollhouse.We'vealsofoundshipwrecks(沉船),whichnoone'sknownbefore.Adi
7、gin2015discoveredevidenceofDunwich'sprehistoricorigins,aswellasevidencethatitwasaprosperousSaxonport,priortoitsrapidgrowthfollowingtheNormaninvasion.BillJenman,fromTouchingtheTide,said，“Wefoundloadsofpottery,alotmorethanwe'vefoundbefore,sortofHighMediev
8、al—thepeakofthewealthofDunwich.WeknowitwasafairlymajortownintheAngloSaxonperiod.”篇章导读：本文讲述了研究人员发现了英国一个衰落的小镇“Dunwich”被猛烈的暴风雨摧毁的新证据。1．EvidenceshowsthatDunwichdeclinedinhistorydueto________.A．theriseofsealevelB．sedimentfromthecliffC
