高考英语二轮总复习课后习题 专题一 阅读理解 考点分类练(十二) 主旨大意题——段落大意类.docVIP

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考点分类练(十二)主旨大意题——段落大意类

Passage1

(黑龙江齐齐哈尔一模)

Theworldisgettinggreener,accordingtoanewstudypublishedinNaturethisweek.

ChiChen,leadauthorofthestudy,andhiscolleagueshavebeenminingdatacollectedbyanorbitingNASAcamerathatmonitorsgreenvegetationonEarth’ssurface,daybyday.Evenmoreinteresting:Theyareabletoshowtheexactcausesofincreasingordecreasingleafcoverinparticularareas.

Insomecoldplaces,increaseinleafcoverapparentlyresultedfromglobalwarming.Sincetheclimateisbecomingmoreandmoretemperateandthegrowingseasonisgettinglongerandlonger,theplantsaregrowingbiggerandleafierthere.

“OnelargeareaofBrazillostvegetation.Ipersonallycheckedthedata,andthat’sbecauseoflackofrain,”Chensaid.

Themoststrikingchanges,though,weretheresultofhumandecisionsinChinaandIndia.Bothcountrieshavebeengettingalotgreener.

ThegreeningofIndia,Chensays,comesfromahugeexpansionofirrigatedagriculture.“Insteadofhavingjustcropswhenit’sraining,theyalsohaveawholesixmonthsofcroppingandgreennesswhenit’snotraining,”hesays.“Thisversionofgreeningisn’treallysogreatfortheenvironment,though.Theirrigationdrainsgroundwater,vegetationiswipedawayatharvesttimeandtheeicalsfarmersuseproducegreenhousegases.”

InChina,though,abouthalfofthenewleafcoverthatChendetectedappearstobetheresultofamassivereforestationeffort.It’sagovernment-supportedattempttopreventdisastrousduststormsthatresultedfromearlierdeforestation.“Theyarereallydoingagoodjob,”Chensays.“Theyhavealargeandcomprehensivetree-plantingprogram.Thosetreeswillstayinplace,capturing(捕捉)dustandalsoCO2,thegreenhousegas.They’llstoreitinwood,rootsandsoil,doingtheirparttoslowglobalwarming.”

1.Whichofthefollowingbesteperate”inparagraph3?

A.Warm.B.Wet.

C.Cold D.Dry.

2.Whathasledtothedecrea