高一英语下学期周练试题承智班4_9

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1、为深入贯彻落实党的十九大精神和习近平总书记的重要指示精神，保障人民安居乐业、社会安定有序、国家长治久安、进一步巩固党的执政基础，束城镇深入贯彻全市扫黑除恶会议精神，强化措施，深入扎实开展扫黑除恶专项斗争河北省定州市2016-2017学年高一英语下学期周练试题（承智班，4.9）一、阅读理解Smokingisharmful.Butassoonasyouquitthehabit,everythingwillbeOK,right?Wrong.Newresearchhasfoundthatevenifyou

2、giveupsmoking,thedamageithasdonetoyourgenes(基因)willstaythereforamuchlongertime.Intheresearch,ateamofUSscientistsstudiedthebloodof16,000people.Amongthem,someweresmokers,someusedtosmoke,andtherestwerenon-smokers.Scientistscomparedtheirgenesandfoundthatm

3、orethan7,000genesofsmokershadchanged-anumberthatisone-thirdofknownhumangenes.AccordingtoNBCNews,bothheartdiseaseandcancerarecausedbygeneticchanges.Somepeoplemayhavehadthechangeswhentheywereborn,butmostpeoplegetthemintheirday-to-dayliveswhiledoingthing

4、slikesmoking.Whenyoustopsmoking,alotofthesegeneswillreturntonormalwithinfiveyears.Thismeansyourbodyistryingtoheal(治愈)itselfoftheharmfuleffectsofsmoking.Butthechangesinsomeofthegenesstayforlonger.Theycanstayforaslongas30years.It’salmostlikeleavingafoot

5、printonwetcement(水泥)一itwillalwaysbethere,evenwhenyou’vewalkedawayandwhenthecementbecomesdry.Althoughthestudyresultsmaymakepeopleunhappy,thereisabrightside:thefindingscouldhelpscientistsinventmedicinetotreatgeneticdamagecausedbysmokingorfindwaystotellw

6、hichpeoplehaveheartdiseaseorcancerrisks.1．ThefunctionofParagraph1isto.A.giveanexampleB.introducethetopicofthepassageC.makeanargumentD.showthemainideaofthepassage2．Mostgeneticchangeshappenbecauseof.A.people’sconditionatbirthB.environmentalpollutionC.pe

7、ople’sbadlivinghabitsD.heartdiseaseandcancer3．Theunderlinedword“it”inParagraph6refersto.A.thecementB.thefootprint为充分发动群众积极参与到扫黑除恶工作中来，束城镇通过由包片班子成员、包村干部、村书记召开各村群众大会广泛宣传动员、公布全镇扫黑除恶举报电话、邮箱和纪委举报等方式，增强人民群众通黑恶势力做斗争的决心，在全镇范围内营造了全民扫黑除恶的浓厚氛围为深入贯彻落实党的十九大精神和习近平总

8、书记的重要指示精神，保障人民安居乐业、社会安定有序、国家长治久安、进一步巩固党的执政基础，束城镇深入贯彻全市扫黑除恶会议精神，强化措施，深入扎实开展扫黑除恶专项斗争C.theharmfuleffectD.thegeneticchange4．Whichofthefollowingstatementsistrue?A.Thefindingsarethefruitofmorethanthreeyears’research.B.Thefindingshavepreventedmorepeo