字典翻译 问答 小学 英语 【BlackBoxYouneverseethembutthey'rewithyoueverytimeyoufly.Theyrecordwhereyou'regoinghowfastyou'retravelingandwhethereverythingonyourairplaneisfunctioningnormally.Theirabilitytoresistalmostanydisastermakes】
问题标题:
【BlackBoxYouneverseethembutthey'rewithyoueverytimeyoufly.Theyrecordwhereyou'regoinghowfastyou'retravelingandwhethereverythingonyourairplaneisfunctioningnormally.Theirabilitytoresistalmostanydisastermakes】
问题描述:

BlackBox

Youneverseethembutthey'rewithyoueverytimeyoufly.Theyrecordwhereyou'regoinghowfastyou'retravelingandwhethereverythingonyourairplaneisfunctioningnormally.Theirabilitytoresistalmostanydisastermakesthemseemlikesomethingoutofacomic(漫画) book.They'reknownastheblackbox.

WhenplanesfallfromtheskyasaYemeniairlinerdidonitswaytotheComorosIslandsintheIndianOceanonJune302009theblackboxisthebestmethodforidentifyingwhatwentwrong.SowhenaFrenchsubmarine(潜水艇) discovereditshomingsignalfivedayslateritmarkedahugesteptowarddeterminingthecauseofthedisasterinwhich152passengerswerekilled.

In1958.AustralianscientistDavidWarrendevelopedaflight-memoryrecorderthatwouldtrackbasicinformationlikealtitudeanddirection.ThatwasthefirstmodelforablackboxwhichbecamearequirementonallUScommercialflightsby1960.Earlymodelsoftenfailedtoresistcrasheshoweversoin1965itwascompletelyredesigned.ThatsameyeartheFederalAviationAuthorityrequiredthattheboxeswhichwereneveractuallyblackbepaintedorangeoryellowtobeeasiertosee.

Modemairplaneshavetwoblackboxes:avoicerecorderwhichtrackspilots'conversationsandaflight-datarecorderwhichmonitorsfuellevelsenginenoisesandotheroperatingfunctionsthathelpexpertsreconstructtheaircraft'sfinalmoments.Theboxescanresistpowerfulforceandtemperaturesupt02OOOoF.They'realsoabletosendoutsignalsfromdepthsof20000ft.ExpertsbelievetheboxesfromAirFranceFlight447 whichcrashednearBrazilonJune12009 areinwaternearlythatdeepbutstatisticssaythey'restilllikelytoturnup.Intheapproximately20deep-seacrashesoverthepast30yearsonlyoneplane'sblackboxeswereneverrecovered.

【小题1】Whatcanweleamabouttheblackboxfromthepassage?

A.Ithelpsanairplanefunctionnormally.B.Itsabilitytoavoiddisastersisamazing.C.Itisnecessaryequipmentonanairplane.D.Theideaforitsdesigncomesfromacomicbook.【小题2】FromtheblackboxontheYemeniairlinerwecangetinformationabout_____.A.thes

高胜回答:
  【小题1】C【小题2】B【小题3】A【小题4】D解析分析:文章介绍黑匣子在飞机上是必不可少的,它的用途是可以在飞机出事后用来分析事故发生的原因。【小题1】推理题:从第一段的句子:Youneverseethembu...
点击显示
英语推荐
热门英语推荐
  • 语文
  • 数学
  • 英语
  • 科学
  • 作文