【备考必备】托福TPO8阅读长难句资料汇总

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1、【备考必备】托福TPO8阅读长难句资料汇总在这里小编为大家带来托福TPO8阅读长难句，希望对大家提高托福阅读水平有所帮助!托福TPO8阅读长难句TPO8:TheRiseofTeotihuacan1.AmongthemainfactorsareTeotihuacán’sgeographiclocationonanaturaltraderoute　tothesouthandeastoftheValleyofMexico,theobsidianresourcesintheTeotihuacán　Valleyitself,andthevalley’spotentialforexte

2、nsiveirrigation.2.Theexactroleofotherfactorsismuchmoredifficulttopinpoint―forinstance,　Teotihuacán’sreligioussignificanceasashrine,thehistoricalsituationinandaroundthe　ValleyofMexicotowardtheendofthefirstmillenniumB.C.,theingenuityand　foresightednessofTeotihuacán’selite,and,finally,theimpa

3、ctofnaturaldisasters,such　asthevolcaniceruptionsofthelatefirstmillenniumB.C.3.Thehardvolcanicstonewasaresourcethathadbeeningreatdemandformanyyears,　atleastsincetheriseoftheOlmecs(apeoplewhoflourishedbetween1200and400B.C.),　anditapparentlyhadasecuremarket.TPO8:ExtinctionoftheDinosaurs1.Crit

4、icsalsopointoutthattheshallowseawayshadretreatedfromandadvancedonthe　continentsnumeroustimesduringtheMesozoic,sowhydidthedinosaurssurvivetheclimaticchangesassociatedwiththeearlierfluctuationsbutnotwiththisone?2.Scientistsfeltthattheycouldgetanideaofhowlongtheextinctionstookby　determiningho

5、wlongittooktodepositthisonecentimeterofclayandtheythoughtthey　coulddeterminethetimeittooktodeposittheclaybydeterminingtheamountofthe　elementiridium(Ir)itcontained.3.Theircalculationsshowthattheimpactkickedupadustcloudthatcutoffsunlightforseveralmonths,inhibitingphotosynthesisinplants;decre

6、asedsurfacetemperatureson　continentstobelowfreezing;causedextremeepisodesofacidrain;andsignificantly　raisedlong-termglobaltemperaturesthroughthegreenhouseeffect.托福TPO8阅读长难句TPO8:RunningwateronMars1.Theonrushingwaterarisingfromtheseflashfloodslikelyalsoformedtheoddteardrop-shaped“islands”(re

7、semblingtheminiatureversionsseeninthewetsandofour　beachesatlowtide)thathavebeenfoundontheplainsclosetotheendsoftheoutflow　channels.2.Judgingfromthewidthanddepthofthechannels,theflowratesmusthavebeentruly　enormous—perhapsasmuchasahundredtimesgreaterthanthe105to