2019-2020年高考英语四月完形填空、阅读理解课外练习（6）

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1、2019-2020年高考英语四月完形填空、阅读理解课外练习（6）阅读理解【xx·山东济宁模拟】Analcoholbreathtest(ABT)isoftenusedbythepolicetofindoutwhetherapersonisdrunkwhiledriving.IntheUnitedStates，thelegalbloodalcohollimitis0.08%forpeopleaged21yearsorolder，whilepeopleunder21arenotallowedtodriveacarwi

2、thanylevelofalcoholintheirbody.A“positive”testresult，aresultoverthelegallimit，allowsthepolicetoarrestthedriver.However，manypeoplewhotestedpositiveonthetesthaveclaimedthattheyonlydranka“nonalcoholic”energydrink.Canoneoftheseenergydrinksreallycausesomeonetotes

3、tpositiveonanABT？ResearchersinMissourisetupanexperimenttofindout.First，theamountofalcoholin27differentpopularenergydrinkswasmeasured.Allbutonehadanalcohollevelgreaterthan0.005%.Innineofthe27drinks，thealcohollevelwasatleast0.096%.Thescientiststheninvestigated

4、thepossibilitythatthesesmalllevelsofalcoholcouldbediscoveredbyanABT.TheyaskedtestsubjectstodrinkafullcanorbottleofanenergydrinkandthengaveeachsubjectanABToneminuteand15minutesafterthedrinkwasfinished.For11ofthe27energydrinks，theABTdidfindthepresenceofalcohol

5、ifthetestwasgivenwithinoneminuteafterthedrinkwastaken.However，alcoholcouldnotbediscoveredforanyofthedrinksifthetestwasgiven15minutesafterthedrinkwasconsumed.Thisshowsthatwhenthetestistakenplaysanimportantroleinthetestresult.Thesoonerthetestisconductedafterth

6、econsumptionofthesedrinks，themorelikelyapositivealcoholreadingwillbeobtained.1．Whatisthelegalalcohollevelfora20yearolddriverintheUS?A．0.000%.　B．0.005%.C．0.080%.　D．0.096%.2．WhatisthepurposeoftheMissouriexperiment?A．Tointroduceanewmethodofcalculatingbloodalcoh

7、ollevels.B．TodiscovertherelationbetweenenergydrinksandABTtestresults.C．Towarnpeopleofthedangersofdrinkingenergydrinks.D．TochangethecurrentlegalalcohollimitfordriversintheUnitedStates.3．Theunderlinedword“subjects”inParagraph2refersto________.A．thethingsthatar

8、ebeingdiscussedB．areasofknowledgestudiedinschoolC．theparticipantsinanexperimentD．thepeoplewhobelongtoacountry4．WhichofthefollowingaffectstheABTtestresultmostforenergydrinkconsumers?A．Theageofthe