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1、2014高考英语阅读理解巩固精品题练习（16）及答案阅读理解Malaria,theworld'smostwidespreadparasitic(寄生虫引起的)disease,killsasmanyasthreemillionpeopleeveryyear----almostallofwhomareunderfive,verypoor,andAfrican.Inmostyears,morethanfivehundredmillioncasesofillnessresultfromthedisease,althoughexactnumbersarediffi
2、culttoassessbecausemanypeopledon't(orcan't)seekcare.Itisnotunusualforafamilyearninglessthantwohundreddollarsayeartospendaquarterofitsincomeonmalariatreatment,andwhattheyoftengetnolongerworks.IncountrieslikeTanzania,Mozambique,andtheGambia,nofamily,village,hospital,orworkplacecanr
3、emainunaffectedforlong. Malariastartssuddenly,withviolentchills,whicharesoonfollowedbyanintensefeverand,often,headaches.Astheparasitesmultiply,theytakeovertheentirebody.Malariaparasiteslivebyeatingtheredbloodcellstheyinfect(感染).Theycanalsoattachthemselvestobloodvesselsinth
4、ebrain.Ifitdoesn'tkillyou,malariacanhappenagainandagainforyears.Thediseaseispassedontohumansbyfemalemosquitoesinfectedwithoneoffourspeciesofaparasite.Together,themosquitoandtheparasitearethemostdeadlycoupleinthehistoryoftheearthandoneofthemostsuccessful.Malariahasfivethousandgene
5、s,anditsabilitytochangerapidlytodefenditselfandresistnewdrugshasmadeitnearlyimpossibletocontrol.Studiesshowthatmosquitoesarepassingonthevirusmorefrequently,andtherearemoreoutbreaksincitieswithlargepopulations.Someofthedisease'sspreadisduetoglobalwarming.Fordecades,thefirst-choice
6、treatmentformalariaparasitesinAfricahasbeenchloroquine,achemicalwhichisverycheapandeasytomake.Unfortunately,inmostpartsoftheworld,malariaparasiteshavebecomeresistanttoit.Successfulalternativesthathelppreventresistancearealreadyavailable,buttheyhavebeeninshortsupplyandareveryexpen
7、sive.Ifthesedrugsshouldfail,nobodyknowswhatwouldcomenext.-11-56.Accordingtoparagraph1,manypeopledon'tseekcarebecause___________.A.theyaretoopoorB.itisunusualtoseekcareC.theycanremainunaffectedforlongD.therearetoomanypeoplesufferingfromthedisease57.Peoplesufferingfrommalaria______
8、_______.A.havetokillfemalemosquitoesB.ha
