问题标题:
【阅读理解.Imaginereadingonedaythatyouhadbeenasubjectinariskyscienceexperimentwithoutknowingit.Atschool,youhadbeenfedcereallacedwithradioactivechemicalssoscientistscouldlearnmoreaboutthedigestivesystem.B】
问题描述:

阅读理解. Imaginereadingonedaythatyouhadbeenasubjectinariskyscienceexperimentwithoutknowingit.

Atschool,youhadbeenfedcereallacedwithradioactivechemicalssoscientistscouldlearnmoreabout

thedigestivesystem.Becausethefoodwasradioactive,scientistscouldeasilytraceitspaththroughthe

body.

Scientistsnowknowthatexposuretolargeamountsofradiationcancausecancer,agroupofdiseases

inwhichbodilycellsgrowwildlyoutofcontrol.Somepeoplewhowerepartoftheradiationstudieslater

developedcancerandblametheradiationforcausingthecancer.Othersareworriedtheradiationwill

somedaymakethemsick.

Somedoctorssaythat,inmanycases,suchfearsareunjustifiedbecausetheradiationdoses(剂量)used

intheexperimentsweretoosmalltocauseharm.Theyalsosaythatsincethedangersofradiationwereless

wellunderstoodthenthantheyarenow,evenresearcherswhousedhighdosesofradiationdidn'tdoanything

wrong.

Somecriticsclaimthatnoexcuseisacceptablefornotinformingsubjectsaboutthenatureofanexperiment

andgivingthemachancetorefusetoparticipate.Today,governmentrulesrequiresuchinformedagreement

wheneverastudyusespeople.1.Thepassageismainlyabout_____.A.whatkindsofexperimentcannotbedoneonpeople

B.whetheritismoraltoexperimentonpeoplewithouttellingthem

C.whatresultcanbeobtainedinaradioactiveexperiment

D.howradiationstudiesareconducted2.WhichofthefollowingstatementsisTRUEaccordingtothepassage?A.Humancellscanbeexcitedbytheradiationtogrowwildlyoutofcontrol.

B.Aslongasthedangerofradiationhasnotbeenproved,highdosesofitcanalsobeacceptable.

C.Mostcancersarecausedbyradiation.

D.Anyexposuretoradiationwillsurelycausecancer.3.Thegovernmentrulesdemand_____.A.tostopallexperimentsharmfultopeople

B.toprohibitalltheexperimentsonhumans

C.tolicenceallthetestsrelatedtohumanbeings

D.toprotect

纪建军回答:
  1-4:BADD
查看更多
八字精批 八字合婚 八字起名 八字财运 2024运势 测终身运 姓名详批 结婚吉日
已出生未出生
英语推荐
热门英语推荐
付费后即可复制当前文章
《【阅读理解.Imaginereadingonedaythatyouhadbeenasubjectinariskyscienceexperimentwithoutknowingit.Atschool,youhadbeenfedcereallacedwithradioactivechemicalssoscientistscouldlearnmoreaboutthedigestivesystem.B】|小学英语问答-字典翻译问答网》
限时特价:5.99元/篇原价:20元