高三英语周练.doc

PAGE页码6/NUMPAGES总页数6
高三英语周练
英语〔重点班〕
命题人：余丛芳审题人：高三英语备课组〔2015-4-27〕

一、阅读理解〔共20小题；每小题2分，满分40分〕
第一节〔共15小题；每小题2分，满分30分〕
A
Ourplanetishometoaboutsevenbillionpeople.Sincethe1990s,populationexpertshavepredictedthenumberwouldgrowtoninebillionbeforeitbeginstoslowdownandpossiblydecrease.
Butanewreportpredictstheworld’spopulationislikelytoincreasetoalmost11-billionby2100.Thenewestimatesarebasedonthemostmodernstatisticaltools.Theymakeuseofgovernmentrecordsandexpertpredictionsaboutdeathrates,fertility〔生育〕ratesandinternationalmigration,orpeoplemovingacrossborders.
Duringtherestofthiscentury,Africaislikelytoexperiencethelargestincreaseinpopulation.ThereportsaysAfrica’spopulationwillgrowfromabout3.5billionto5.1billionpeopleoverthenext85years.
JohnWilmothisdirectoroftheUnitedNationsPopulationDivision.Hesaysthatinthepast,researchersthoughtpopulationgrowthinAfricawouldbesimilartothatofotherareas.Theyexpectedslowergrowthratesasbirthcontrolusebecamemorewidespread.Buthesaysthoseestimateswerewrong.
“Thelevelofcontraceptionusehascontinuedtoincreasebutslowly–moreslowlythanexpected–andfertilitythereforehasbeenfallinglessrapidlythanexpected,andthepopulationthereforecontinuestogrowsomewhatmorerapidlythanweexpected.”
ThenewfindingsarebasedonajointresearchprojectoftheUnitedNationsandtheUniversityofWashington.
TheresearchersbelievethepopulationofAsiawillreachfivebillionby2050.Thatisupfromthecurrent4.4-billionpeople.
TheresearchersalsobelievethatNorthAmerica,Europe,LatinAmericaandtheCaribbeanareawillhaveatotalpopulationofbelowonebillion.
JohnWilmothsaysthepressureoffeedingtherisingpopulationislikelytobelessthanmightbeexpected.
“Therelativelygoodnewsisthattheworldhasbeenwinningtheracebetweenpopulationgrowthandfoodproduction.Ifyoulookbackhistoricallyoverthelast50years,certainlyfortheworldasawholeandformany,mostindividualcountriesandregions,theincreaseinfoodproductionhasoutpacedtheincreaseofpopulation.”
21.Whichofthefollowingwillexperiencethelargestincreaseinpopulationbythecentury’send?
A.Asi