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1、智课网TOEFL备考资料托福TPO1-34阅读词汇题完整汇总(电子版)摘要：托福TPO1-34阅读词汇题完整汇总(电子版)!新托福TPO阅读中，TPO阅读词汇题是重要托福阅读题型。托福阅读词汇题做题需要考生掌握一定的词汇量和做题技巧，这样也可以帮助同学检验托福词汇的背诵效果，同学们快来巩固一下吧!托福TPO1-34阅读词汇题完整汇总(电子版)!新托福TPO阅读中，TPO阅读词汇题是重要托福阅读题型。托福阅读词汇题做题需要考生掌握一定的词汇量和做题技巧，这样也可以帮助同学检验托福词汇的背诵效果，同学们快来巩固一下吧!Paragraph1:Inthefourteenthcentury,a
2、numberofpoliticaldevelopmentscutEurope'soverlandtraderoutestosouthernandeasternAsia,withwhichEuropehadhadimportantandhighlyprofitablecommercialtiessincethetwelfthcentury.Thisdevelopment,comingasitdidwhenthebottomhadfallenoutoftheEuropeaneconomy,providedanimpetustoalong-helddesiretosecuredirectr
3、elationswiththeEastbyestablishingaseatrade.Widelyreported,ifsomewhatdistrusted,accountsbyfigureslikethefamoustravelerfromVenice,MarcoPolo,ofthewillingnessofpeopleinChinatotradewithEuropeansandoftheimmensityofthewealthtobegainedbysuchcontactmadetheideairresistible.Possibilitiesfortradeseemedprom
4、ising,butnohopeexistedformaintainingthetraditionalroutesoverlandAnewwayhadtobefound.【TPO17-Europe'sEarlySeaTradewithAsia】1.Thewordimpetusinthepassageisclosestinmeaningto○Return○Opportunity○Stimulus○ObstacleParagraph3:Attimes,itisactuallypossibletowatchtheeffectsofnaturalselectioninhost-parasite
5、relationships.Forexample,Australiaduringthe1940swasoverrunbyhundredsofmillionsofEuropeanrabbits.TherabbitsdestroyedhugeexpansesofAustraliaandthreatenedthesheepandcattleindustries.In1950,myxomavirus,aparasitethataffectsrabbits,wasdeliberatelyintroducedintoAustraliatocontroltherabbitpopulation.Sp
6、readrapidlybymosquitoes,thevirusdevastatedtherabbitpopulation.Theviruswaslessdeadlytotheoffspringofsurvivingrabbits,however,anditcausedlessandlessharmovertheyears.Apparently,genotypes(thegeneticmake-upofanorganism)intherabbitpopulationwereselectedthatwerebetterabletoresisttheparasite.Meanwhile,
7、thedeadlieststrainsofthevirusperishedwiththeirhostsasnaturalselectionfavoredstrainsthatcouldinfecthostsbutnotkillthem.Thus,naturalselectionstabilizedthishost-parasiterelationship.【TPO17-SymbioticRelationships】4.Theworddevastatedin
