鼓楼九年级期中.docx

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1、AssoonasRyanMarce1oturnsonhiscomputer,timeseemstostop.Afterstartingp1ayinghisfavouritegame,hiseyesfixedonthecharactersonthescreen?!p1ayeveryday,sometimesformorethanfourhours/5Ryan,a14-year-o1dCanadianboy,said,nWhenIfinishp1aying,myeyesareheavyandIjustfee1rea11ytired.Afami1iar（熟悉的）story?Infami1ieswit

2、hchi1drenandcomputers,there*sagoodchanceofmeetingchi1dren1ikeRyan,whospendtoomuchtimeinfrontoftheircomputers.Andthesechi1drenarestartingtofee1painsasaresu1tof1ong-timecomputeruse.uWhatwe,reseeingisthatchi1dren,s1eve1sofcomputer-re1ated（由电脑引起的）discomfortarec1osetoadu1tsn,nsaidMs.Fraser,anengineer/The

3、y,rereportingthattheyhaveprob1emswiththeireyes,andthatthey,refee1ingdiscomfortintheirnecks,backsandintheirhands,armsandwrists.Aresearchreportshowshowcomputinghasbecomeaneverydaypartof1ifeforCanadianchi1dren.Near1y40%ofchi1drenaged4to11havetheirowncomputers,andmorethan20%havemobi1ephones.Theyusethemt

4、osendmessagestofriendstoooften.Butisthegrowinguseoftechno1ogyamongchi1drenthemainreasonforcomputer-re1atedhea1thprob1ems7A1thoughthereis1itt1eresearchinthisarea,thefewstudiessuggestthatsuchprob1emsarequitecommonamongchi1drenandteens.Theresearchersstudiedstudentsaged10to17with1aptopprogrammes.Theyfou

5、ndthatabout60%saidtheyfe1tuncomfortab1e,most1yintheneckandshou1derareas.Partoftheprob1emisthatmanyoftoday,scomputergamesaren,tspecia11ydesignedforchi1dren,shands.A1somostkeyboardsandcomputermousesaretoobigforthem.Whenchi1drenusethecomputer,they,reusua11ysittinginanadu1t-sizedchairfacinganadu1t-sized

6、desk.Andtheyneedtotakebreaks-onceevery20minutes-wheretheygetupforat1easttwominutesandwa1k.51 .Theexamp1eofRyanMarce1oinParagraph1isto.A.givesomedetai1sB.drawaconc1usionC.makeacomparisonDjntroducethetopic.Whatdoestheunder1inedworddiscomfrt,inParagraph3mean?C.Afee1ingofexcitement.D.Afee1ingoftiredness

7、52 .Whichofthefo11owingisTRUE?A.Bothadu1tsandchi1drenarefee1ingcomputer-re1ateddiscomfort.B.Mostpeop1ehaveprob1emswiththeireyes,ears,necksandhands.CHa1foftheCanadianchi1drenhavecomputersandmobi1ephones.D.Canadianchi1drenwatchshortvideosonmobi1ephonestoooften.54.Whatisthemainreasonforchi1dren*scomputer-re1atedhea1thprob1ems?A.Adu1t-sizedchairsanddesks.B.Thegrowinguseoftechno1ogy.C.Chi1drenfavouritecomputergames.D.Bigkeyboardsandcomputermouses.55.Whatmaybethebesttit1eofthetext?A.Ryan,sHea1thProb1emB.SayNotoVideoGamesC.Techno1ogy1eadsNew1ifeD.VideoGamesareaPain