“Globalwarmingcouldmakehumansshorter”warnscientistswhoclaimtohavefoundevidencethatitcausedtheworld'sfirsthorsestoshrink(收缩)nearly50millionyearsago.InfactateamfromtheuniversitiesofFloridaandNebra
“Globalwarmingcouldmakehumansshorter”warnscientistswhoclaimtohavefoundevidencethatitcausedtheworld'sfirsthorsestoshrink(收缩)nearly50millionyearsago.InfactateamfromtheuniversitiesofFloridaandNebraskasaysithasfoundalinkbetweentheEarthheatingupandthesizeofmammals–horsesinthiscase.
Thescientistsusedfossilstofollowtheevolutionofhorsesfromtheirearliestappearance56millionyearsago.Astemperaturewentup，theirsizewentdownandviceversa（反之亦然）;“Atonepointtheywereassmallasahousecat”saidDrJonathanBlochcurator（博物馆长）oftheFloridaMuseumofNaturalHistorywhichwasquotedbythe"DailyMail"assaying.
Thescientistssaythatthecurrentwarmingcouldhavethesameeffectonmammalsandcouldevenmakehumanssmaller."Horsesstartedoutsmallaboutthesizeofasmalldog.What'ssurprisingisthataftertheyfirstappearedtheythenbecameevensmallerandthendramaticallyincreasedinsizeandthatexactlycorrespondstotheglobalwarmingeventfollowedbycooling”
"Ithadbeenknownthatmammalsweresmallduringthattimeandthatitwaswarmbutwehadn'trealizedthattemperaturespecificallywasdrivingtheevolutionofbodysize"DrBlochsaidinthe"Science"journal.
1.Howdidscientistsfindoutthehorses’earliestappearancemillionsofyearsago?
A.searchingthedataonthenet
B.sortingthroughthepicturesofancienttimes
C.usingfossilstofollowtheevolution
D.analyzingtherelatedimages
2.Whatcanweinferformthepassage?
A.Astemperatureswentuphorsesdramaticallyincreasedinsize
B.Thetemperaturehasnoeffectonmammals’evolution
C.Astemperatureswentuphorses’sizewentdown
D.Inhistoryitusedtobewarmatearlytimesfollowedbyacertainperiodofsharplycoolingdown.
3.Whichisthemostclosestmeaningtotheunderlinedwordsmostprobablymean_______.
A.reacttoB.becontradictoryto
C.beconsistentwithD.differfrom
4.Whatisthebesttitleofthepassage?
A.Globalwarmingistodisappear
B.Thetemperatureonearthistodecrease
C.Globalwarmingmakeshumanshorter
D