IfyouneedglassestoreadthisyouareamongthemajorityofChinesestudents.That’sbecausemoststudentsinChinaareshort-sightedwhichmeanstheycanonlyseethingscloseupanddistantthingswillbeblurry.Four-fifthsofhighschoolstudentswearglassesandnowmoreandmorechildreninprimaryschoolneedglassestoo.
Thisepidemicofpooreyesighthastwoverysimplecauses:toomuchtimespentindoorsstudyingandtoolittletimespentoutdoorsplaying.Readingandwritingforhoursandhourssometimesinpoorlylightedroomscauseseyesighttoweaken.Butstudentshavetodothisbecausethereissomuchpressureonthemtosucceedinschool.Andbecausetheyspendsomuchtimeindoorsatschoolandathometheyhavelesstimetospendoutdoorsenjoyingthesun.
Thesunasaconsequenceisimportantindevelopinggoodeyesight.Exposuretodaylightreleasesachemicalintheeyesthatpreventsoratleastdelaysshort-sightedness.AccordingtoastudybyIanMorganofAustralianNationalUniversityAustralianchildrenandChinesechildrenhavethesamelevelofeyesightbeforetheystartschoolbutoncetheyenterprimaryschoolChinesechildrenonlyspendaboutanhouradayoutsidewhileAustralianchildrenspendthreetofourhourseachdayinthesunshine.Theresultisthatwhileabout40percentofChineseprimaryschoolstudentsneedglassesonlythreepercentofAustralianchildrendo.
Wearingglassesmaynotseemlikeabigdeal.Forsomewearingglassescanevenbeanopportunitytomakeafashionstatement.Butpooreyesightatayoungagecanhaveseriouslongtermconsequences.Asyougetolderyoureyesightcanworsenandleadtothingslikemaculardegeneration(黄斑变性)aconditionoftheeyesforwhichthereisnocureandwhichcaneventuallyleadtoblindness.
Withallthatinminddon’tyouthinkit’stimetogiveyoureyesabreak?Tryspendingalittlelesstimeinsideandgoforawalkintheparkinstead.It’sthehealthythingtodoandyoureyeswillthankyouforit.
1.Whatdoestheunderlinedword“blurry”mean?
A.unpopular.B.unpleasant.
C.unclear.D.unconscious.
2.Howshouldthestudentsprotecttheireyesightaccordingtothepassage?
A.Theyshouldstudylessandless.
B.Theyshouldstaylongeroutdo
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