GRE阅读真题考前突击训练8

GRE阅读真题考前突击训练8GRE考试阅读真题练习：GRE阅读真题考前突击训练8 GRE备考精品课程训练 The hypothesis of an expanding Earth ha

14 第页共页 Word文档下载后（可任意编辑） GRE8 阅读真题考前突击训练 GREGRE8 考试阅读真题练习：阅读真题考前突击训练 GRE 备考精品课程训练 ThehypothesisofanexpandingEarthhasneverattracted notablesupport,andifitwerenotforthehistoricalexample ofcontinentaldrift,suchindifferencemightbealegitimate responsetoanapparentlyimprobableconcept.Itshouldbe remembered,however,thatdrifttoowasonceregardedas illusory,buttheideawaskeptaliveuntilevidencefrom physicistscompelledgeologiststoreinterprettheirdata. Ofcourse,itwouldbeasdangeroustooverreactto historybyconcludingthatthemajoritymustnowbewrong aboutexpansionasitwouldbetoreenacttheresponsethat greetedthesuggestionthatthecontinentshaddrifted.The casesarenotpreciselyanalogous.Therewereserious problemswiththepre-driftworldviewthatadrifttheorycould helptoresolve,whereasEarthexpansionappearstoofferno comparableadvantages.If,however,physicistscouldshow