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1、2011年职称英语等级考试真题（理工类A级）学派网职称英语团队原创翻译0第2部分：阅读判断（第16～22题，每题1分，共7分）下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断；如果该句提供的是正确信息，请选择A；如果该句提供的是错误信息，请选择B；如果该句的信息文中没有提及，请选择C。EarthRocksonMostofthetime,thegroundfeelssolidbeneathourfeet.That’scomforting.Butit’salsomisleadingbecausethere’sactua
2、llyalotgoingonunderground.Massesofland(calledplates)slip,slide,andbumpagainsteachother,slowlychangingtheshapeofcontinentsandoceansovermillionsandbillionsofyears.ScientistsknowthatEarthformedabout4.5billionyearsago.Theyalsoknowthatourplanetwashotatfirst.Asitcooled,its
3、outermostlayer,calledthecrust（地壳）,eventuallyformedmovingplates.Exactlywhenthisshifthappened,however,isanopenquestion.Now,aninternationalgroupofresearchershasananswer.They’vefoundnewevidencesuggestingthatEarth’scruststartedshiftingatleast3.8billionyearsago.Thenewestim
4、ateis1.3billionyearsearlierthanpreviousones.Notlongbefore3.8billionyearsago,lotsofasteroids（小行星）werehittingEarth,keepingitscrustinahot,meltedstate.Afterthehardcrustformed,muchofitsankatvarioustimesintotheplanet’shotinsides.There,itmeltedbeforereturningtothesurface.In
5、someplaces,however,thecrustneversank.OneoftheoldestsuchplacesisinGreenland,inanareacalledtheIsuasupracrustal（上地壳）belt.Therockycrustthereisbetween3.7and3.8billionyearsold.Thebeltwasoncepartoftheseafloor,butnowitisexposedtoair.TheresearchersrecentlytookacloselookattheI
6、suasupracrustalbelt.Theynoticedlong,parallelcracksintherockthathavebeenfilledinwithatypeofvolcanicrock.Toexplainthisstructure,thescientistsproposethattensioninthecrustcausedtheseafloortocrackopenlongago.Hot,liquidrock,calledmagma（岩浆）flowedupslowlyfromdeepinsideEartht
7、ofillthecracks.Finally,thewholeareacooled,formingwhatweseetoday.Thatexplanation,pluschemicalcluesinsidetherock,suggeststhattheIsuasupracrustalbeltwasoncepartofaplateundertheocean,beginningaround3.8billionyearsago.16．Thegroundbeneathourfeetisindeedstill.地球在摇晃绝大多数时候，我们
8、感觉脚下的土地很坚实。这让人感到很安慰。但是这也让人产生误解，因为实际上地底下正在发生着很多事情。大块的地面（称为板块）滑动并互相撞击，在几百年到数十亿年间慢慢改变陆地以及海洋的面貌。科学家知道地球是在大约45亿年前形成的。他们也知道我们的地球起初是很热的。随着
