Thereisadefinitepossibilitythattheclimateoftheworldmaybechanging.Somescientistsimaginethatthiscouldevenmeanthebeginningofanothericeage.Theeffectsofsuchachangeinclimateonthehumanpopulationoftheworldwouldbestartling(惊人的).
Recentresearchsuggeststhatthegeneralwarmingtrendofthepasthundredyearsorsomaybecomingtoanend.DuringthepasttenyearsmeteorologiststellustheaveragetemperatureoftheEarthhasdroppedaboutonedegreeFahrenheit.Thisdoesnotseemlikemuchbutitcouldhaveeffectsonwindandrainpatternswhichinfluencetheoverallweatherpicture.Ifthesepatternschangealotitcouldmeanthatcertainregionsoftheworldmaycontinuetohavelongdroughtswhileotherswillpossiblysufferfromwidespreadflooding.
Whatregulates(调节)theclimateisnotexactlyknown.MeteorologistsbelievethatcloudsmaybeanimportantfactorinregulatingtheamountofsolarheatheldbytheEarthwhichinturndeterminesthetemperatureoftheplanet.Anotherpossibilityisthatman’sindustrialandagriculturalmethodsmaybeaffectingthenaturalweatherpatterns.Howevertheweatherisnotunderstoodwellenoughforscientiststosayforcertainwhatishappeningtotheclimateandwhatsideeffectsthiswillactuallyhaveontheworld’spopulation.
Accordingtothepassagetheclimateoftheworldseemsto .
A.begettingcolder B.begettingwarmer
C.remainthesameinthepasttenyears D.havegoodeffectsontheworld’spopulation
WhichofthefollowingisTRUEaccordingtothepassage?
A.Man’sactivitieshavenoeffectontheclimate.
B.Anothericeagewillcomesoon.
C.Peopledon’tcareaboutthechangingclimate.
D.Scientistsarenotyetsureaboutthereasonforthechangingclimate.
Ameteorologistisapersonwho .
readsweatherforecastsonradioortelevision
B.thinkstherewillbeanothericeage
C.studiesandknowsabouttheweather
D.believestherewillbewidespreadflooding
Whichofthefollowingmaybethefactor(s)thataffect(s)thenaturalweatherpatterns?
A.Clouds. B.Theamoun
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