2019高考英语一轮选练习题 模块5 Unit 2 The environment（含解析）牛津译林版

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1、Theenvironment一、阅读理解。Inthedeadofwinter，wedon'ttypicallythinkaboutspendingtimeoutdoors，butaccordingtomanyphysiciansweshould.Thesunisourgreatestsourceofavitaminthatisessentialforgoodhealth—VitaminD.Thisimportantvitaminstrengthensbonesandteethandislinkedtothepreventionofheartdi

2、sease，cancerandmanyotherlifethreateningdiseases.Theremendeddailyrequirementis400600InternationalUnits(IU)．Insummer，peoplewithdarkbrowneyesanddarkerskinturnsunlightfromjust15minutesoutsidewithoutsunscreenintoadequateamountsofVitaminD.Evenduringwinter，justa10minutewalkatmidday

3、cankeepthebody'sVitaminDathealthylevels.Duringbriefwinterwalks，wereceivethegreatestbenefitswhenwewearnosunscreenandexposeasmuchskintothesunaspossible.VitaminDcanbealsoobtainedfromfoods.SalmonisoneofthebestsourcesoftheVitamin.Eggyolks(蛋黄)，cheese，mushroomsandsomeanimalorgansco

4、ntainsmallerquantitiesofit.Toattractconsumers，foodpaniesaddVitaminDtosomeoftheirmilkproducts.ThepracticeofputtingtheVitaminintomilkbeganinthe1930s.Atthattime，manychildrenweresufferingfromrickets，anillnessthatiscausedbyadeficiency(缺乏)ofVitaminD．Itmadethechildren'sbonessoftand

5、weak.AddingVitaminDtomilkhelpedtosolvetheproblem，andithasbeenavailableeversince.ForpeoplewhostillneedmoreVitaminD，thereisanotheroption：TakeVitaminDsupplements(补充物)．Theseproductsarewidelysoldinstores.However，anyoneconsideringtakingsupplementsshouldconsultaphysicianfirst.1．Dur

6、ingthewintermonths，people________.A．aren'tabletomeettheirdeadlinesB．oftendon'tdresswarmlyenoughC．generallyliketoremainindoorsD．leavelotsofworkforotherstodo2．Accordingtothetext，VitaminD________.A．canbeobtainedbybeingexposedtothesunB．canbeusedtocurelifethreateningdiseasesC．can

7、bemainlyfoundinsomemilkproductsD．canmakethechildren'sbonessoftandweak3．Whyissalmonmentionedinthisarticle?A．It'sseldompreparedinthecorrectway.B．It'sausefuladditiontoaperson'sdiet.C．Ithasahugeimpactontheenvironment.D．Itsadvantageshavebeenexaggerated.4．Themainpurposeofthisartic

8、leis________.A．tointroduceavaluablenutrientB．toadvertiseVitaminDsupplements