托福词汇题练习tpo题集

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1、词汇题练习—tpo1-71.Theword“precious”inthepassageisclosestinmeaningtoa.Exactb.scarec.valuabled.initialAlthoughlimitedtoaskull,thePakicetusfossilprovidespreciousdetailsontheoriginsof……2.Theword“exposed”inthepassageisclosestinmeningtoa.Explainedb.visiblec.identifiedd.locatedSeveralskelet

2、onsofanotherearlywhale,Basilosaurus,werefoundinsedimentsleftby…andnowexposedintheSaharadesert.3.Theword“propulsion”inthepassageisclosestinmeaningtoa.Stayingafloatb.changingdirectionc.decreasingweightd.movingforwardThestructureofthebackboneshows,however,thatitswamlikemodernwhalesb

3、ymovingtherearportionofitsbodyupanddown,eventhoughaflukewasmissing.Thelargehindlegswereusedforpropulsioninwater.4.Theword“threatened”inthepassageiscloestinmeningtoa.Restrictedb.endangeredc.preventedd.rejectedTheexpansionofdesert-likeconditionsintoareaswheretheydidnotpreviouslyexi

4、stiscalleddeserfication.Ithasbeenestimatedthatanadditionalone-fourthoftheEarth’slandsurfaceisthreatenedbythisprocess.5.Theword“delicate”inthepassageiscloestinmeaningtoa.Fragileb.predictablec.complexd.valuableThesemiaridlandsborderingthedesertsexistinadelicateecologicalbalanceanda

5、relimitedintheirpotentialtoadjusttoincreasedexvironmentalpressures.6.Theword“progressively”inthepassageiscloestinmeaningtoa.Openlyb.impressivelyc.objectivelyd.increasinglyThecultivationofcropshasexpandedintoprogressivelydrierregionsaspopulationdensitieshavegrown.7.Thephrase“devoi

6、dof”inthepassageisclosestinmeaningtoa.Consistingofb.hiddenbyc.exceptford.lackinginSincetheraisingofmostcropsnecessitatesthepriorremovalofthenaturalvegetation,cropfailuresleaveextensivetractsoflanddevioldofaplantcoverandsusceptibletowindandwatererosion.8.Theword“readily”inthepassa

7、geisclosestinmeaningtoa.Frequentlyb.easilyc.intelligentlyd.obviouslyExhibitors,however,watedtomaximizetheirprofits,whichtheycoulddomorereadilybyprojectingahandfuloffilmstoahundredsofcustomersatatime….9.Theword“assistance”inthepassageisclosestinmeaningtoa.Criticismb.leadershipc.he

8、lpd.approval…withtheassistanceofEdison’s