- 阅读理解B
题干:Intheatmosphere,carbondioxideactsratherlikeaone-waymirror—theglassintheroofofagreenwhichallowsthesun’sraystoenterbutpreventstheheatfromescaping.1.()Accordingtoaweatherexpert’sprediction,theatmospherewillbe3℃warmerintheyear2050thanitistoday,ifmancontinuestoburnfuelsatthepresentrate.Ifthiswarming-uptookplace,theicecapsinthepoleswouldbegintomelt,thusraisingsealevelseveralmetersandseverelyfloodingcoastalcities.Also,theincreaseinatmospherictemperaturewouldleadtogreatchangesintheclimateofthenorthernhemisphere,possiblyresultinginanalterationoftheearth’schieffood-growingzones.2.()Inthepast,concernaboutaman-madewarmingoftheearthhasconcentratedontheArcticbecausetheAntarcticismuchcolderandhasamuchthickericesheet.ButtheweatherexpertsarenowpayingmoreattentiontoWestAntarctic,whichmaybeaffectedbyonlyafewdegreesofwarming;inotherwords,byawarmingonthescalethatwillpossiblytakeplaceinthenextfiftyyearsfromtheburningoffuels.3.()SatellitepicturesshowthatlargeareasofAntarcticicearealreadydisappearing.Theevidenceavailablesuggeststhatawarminghastakenplace.Thisfitsthetheorythatcarbondioxidewarmstheearth.However,mostofthefuelisburntinthenorthernhemisphere,wheretemperaturesseentobefalling.Scientistsconclude,therefore,thatuptonownaturalinfluencesontheweatherhaveexceededthosecausedbyman.Thequestionis:whichnaturalcausehasmosteffectontheweather?4.()Onepossibilityisthevariablebehaviorofthesun.Astronomersatoneresearchstationhavestudiedthehotspotsand“cold”spots(thatis,therelativelylesshotspots)onthesun.Asthesunrotates,every27.5days,itpresentshotteror“colder”facetotheearth,anddifferentaspectstodifferentpartsoftheearth.Thisseemstohaveaconsiderableeffectonthedistributionoftheearth’satmosphericpressure,andconsequentlyonwindcirculation.Thesunisalsovariableoveralongterm:itsheatoutputgoesupanddownincycles,thelatesttrendbeingdownward.5.()Scientistarenowfindingmutualrelationsbetweenmodelsofsolar-weatherinteractionsandtheactualclimateovermanythousandsofyears,includingthelastIceAge.TheproblemisthatthemodelsarepredictingthattheworldshouldbeenteringanewIceAgeanditisnot.Onewayofsolvingthistheoreticaldifficultyistoassumeadelayofthousandsofyearswhilethesolareffectsovercometheinertiaoftheearth’sclimate.Ifthisisright,thewarmingeffectofcarbondioxidemightthusbeservingasausefulcounter-balancetothesun’sdiminishingheat.
题目:(5) - A 、Global warming becomes more severe than before
- B 、Shifted focus
- C 、Global warming might be good for the earth
- D 、Balance must be achieved
- E 、One example of natural cause
- 、Scientists conclude a more significant impact on the weather
- 、Possible geographic and climate changes in the future

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【正确答案:C】
由于If this is right, the warming effect of carbon dioxide might thus be serving as a useful counter-balance to the sun’s diminishing heat. 得出全球变暖正好弥补了太阳热量减少的缺点,可能对地球有好处。

- 1 【完形填空】(3)
- A 、digits
- B 、numbers
- C 、amounts
- D 、amounts
- 2 【完形填空】(5)
- A 、with
- B 、in
- C 、from
- D 、by
- 3 【完形填空】(6)
- A 、progress
- B 、absence
- C 、presence
- D 、favor
- 4 【完形填空】(8)
- A 、over
- B 、for
- C 、among
- D 、to
- 5 【完形填空】(9)
- A 、stay up
- B 、crop up
- C 、fill up
- D 、cover up
- 6 【完形填空】(4)
- A 、real
- B 、authentic
- C 、true
- D 、sheer
- 7 【完形填空】(9)
- A 、with
- B 、on
- C 、in
- D 、from
- 8 【阅读理解B】(2)
- A 、Use commute time
- B 、Make conversations about your artwork a priority
- C 、Read before you fall asleep
- D 、Carry a notepad and pen about
- E 、Take notes whenever ideas come
- 、Talk about yourself as much as possible
- 、Don't underestimate thinking time
- 9 【阅读理解B】(3)
- A 、Use commute time
- B 、Make conversations about your artwork a priority
- C 、Read before you fall asleep
- D 、Carry a notepad and pen about
- E 、Take notes whenever ideas come
- 、Talk about yourself as much as possible
- 、Don't underestimate thinking time
- 10 【完形填空】(4)
- A 、regular
- B 、formal
- C 、continual
- D 、circular
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