完形填空Passage13Scientistssaythatsomethingvery完形填空Passage13Scientistssaythatsomethingveryseriousishappeningtotheearth.Itwillbegintoget1inthefollowingyears.Therewillbemajorchangesin2inthenewce
完形填空Passage13Scientistssaythatsomethingvery
完形填空Passage13
Scientistssaythatsomethingveryseriousishappeningtotheearth.Itwillbegintoget1inthefollowingyears.Therewillbemajorchangesin2inthenewcentury.Coastalwaterswillhavea3temperature.Thiswillhavea4effectonagriculture.Innorthernareas,the5seasonwillbetendayslongerbytheyear2010.However,inwarmerareas,itwillbetoodry.The6ofwatercould7byeightypercent.Thiswould8alargedecreaseinagricultureproduction.
Worldtemperaturecould9twodegreescentigradebytheyear2040.However,theincreasecouldbethreetimesasgreatintheArcticandAntarcticarea.Thiscouldcausethe10sheetstomeltandraisethe11oftheoceans12onetotwometers.Manycoastalcitieswouldbe13water.
Whyisthishappening?Thereistoo14carbondioxideintheair.15oil,gasandcoalburn,theycreatelargeamountsofcarbondioxide.Thiscarbondioxidelets16entertheearth’satmosphereand17theearth.However,itdoesn’tletasmuchheat18theatmosphereandenterspace.It’slikeablanket.Theheat19thesuncanpassthroughtheblankettowarmtheearth.Theheat20thereandcan’tescapethroughtheblanketagain.
Scientistscallthisthegreen-houseeffect.
1.Awarmerx09x09x09Bcolderx09x09x09Cbetterx09x09x09Dworse
2.Alandx09x09x09x09Bagriculturex09x09Cclimatex09x09x09Dweather
3.Alowerx09x09x09x09Bhigherx09x09x09Cnormalx09x09x09Dproper
4.Agoodx09x09x09x09Bgeneralx09x09x09Cseriousx09x09x09Duseful
5.Agettingx09x09x09Bplayingx09x09x09Ctakingx09x09x09Dgrowing
6.Amuchx09x09x09x09Bmanyx09x09x09Camountx09x09x09Dnumber
7.Afallx09x09x09x09Bdecreasex09x09x09Crefusex09x09x09Drise
8.Aleadx09x09x09x09Bkeepx09x09x09Cmakex09x09x09Dcause
9.Aincreasex09x09x09Bdropx09x09x09Cliftx09x09x09x09Drealize
10.Awaterx09x09x09Brainx09x09x09x09Cstonex09x09x09Dice
11.Adegreex09x09x09Blevelx09x09x09Ccoastx09x09x09Darea
12.Abyx09x09x09x09Btox09x09x09x09Cofx09x09x09x09Dwith
13.Aabovex09x09x09Bunderx09x09x09Cbelowx09x09x09Dover
14.