【EveryhourspentinwatchingTVDVDsandvideosasanadultreduceslifespanbyalmost22minutesastudysuggests.AndviewingTVforanaverageofsixhoursadaycancutshortyourlifebyfiveyears.Theresearchshowsthatasedentary】
EveryhourspentinwatchingTVDVDsandvideosasanadultreduceslifespanbyalmost22minutesastudysuggests.AndviewingTVforanaverageofsixhoursadaycancutshortyourlifebyfiveyears.
Theresearchshowsthatasedentary(久坐的)lifestyleisasbadforhealthassmokingandobesitybecauseofthedangerscausedbyinactivityandthegreateropportunitiesitoffersforunhealthyeating.
Theresearcherssetouttocalculatetheoverallrisktolifespanfromwatchingtelevision.Theirresearchinvolvedmorethan11000peopleovertheageof25.
WritingintheBritishJournalofSportsMedicinetheyconcluded."TVviewingtimemaybeconnectedwithalossoflifewhichissimilartoothermajorchronicdiseaseriskfactorssuchasphysicalinactivityandobesity."
TheresearchersfromtheUniversityofQueenslandusedinformationfromtheAustralianDiabetesObesityandLifestyleStudytogetherwithpopulationanddeathratedata.
Buttheysaid:"AlthoughweusedAustraliandatatheeffectsinotherindustrializedanddevelopingcountriesarelikelytobesimilarconsideringthelargeamountsoftimespentwatchingTVandsimilaritiesindiseasepatterns."IntheUnitedKingdomtheaverageamountoftimespentwatchingTVisfourhoursadaycomparedwithfivehoursintheUnitedStates.
Earlierthisyearaseparatestudysuggestedtheriskofdevelopingdiabetesandheartdiseaseordyingearlyrisesbyasmuchas20percentafterjusttwohoursadayinfrontofthebox.
England'sChiefMedicalOfficerSallyDaviessaid:"Physicalactivityoffershugebenefitsandthesestudiesbackwhatwealreadyknow-thatasedentarylifestylecarriesadditionalrisks.Wehopethesestudieswillhelpmorepeoplerealizethattherearemanywaystogetexercise."
【小题1】Wecanlearnfromthepassagethat .
A.whetheryouwatchTVornothasnothingtodowithhowlongyouwillliveB.ifanadultwatchesTVforsixhourseverydayhewillprobablydiefiveyearsearlierC.physicalinactivityandobesitywon'tshortenyourlifeD.asedentarylifestyleoffershugebenefits.【小题2】Thepassageimpliesthat_______.A.Th