Youmayknowabout"junkfood"likeFrenchfries.Butdoyouknowabout"junksleep"?RecentlyaBritishsurveyfoundthatelectronic(电子)productsinteenagers'bedroomsareaffecting(影响）theirsleep.Thesurveywasdoneamong1

　　Youmayknowabout"junkfood"likeFrenchfries.Butdoyouknowabout"junksleep"?

　　RecentlyaBritishsurveyfoundthatelectronic(电子)productsinteenagers'bedroomsareaffecting(影响）theirsleep.

　　Thesurveywasdoneamong1，000Britishkidsfrom12to16.Itfoundthat30percentofthemgotjust4to7hours'sleepeveryday.Butdoctorssaytheyneed8to9hours.

　　AlmostaquarterofthekidssaidtheyfellasleepmorethanonceaweekwhilewatchingTVlisteningtomusicorusingotherelectronicproducts.

　　"Thisisveryworrying"saidDrChrisIdzikowskiaBritishexpert"wecallit4junksleep'.Itmeansyoudon'tgetenoughsleepandthequalityofthesleepisbadtoo.Ifyoudon'tgetgoodrestyoudon'tdowellinschoolthenextday."

　　Thesurveyfoundthat40percentofthekidsfelttiredeachdaywithgirlsbetween13and16feelingtheworst.NearlyalltheteenagershaveaphoneMP4orTVintheirbedroom.Andmanyofthemhaveallthree.

　　1. Thispassageismainlyabout____________.

　　A.junkfood

　　B. junksleep

　　C. electronicproducts

　　D.theimportanceofsleep

　　2._______ofthechildreninthesurveysleeponly 4to7hoursaday.

　　A.200 B.300

　　C.500 D.1000

　　3. "Junkfood"and"junksleep"aresimilartoeach otherinthewaythat___________.

　　A. theyarebothlowinquality

　　B. theyarebothproducedinfactories

　　C. peopleenjoybothintheirsparetime

　　D. theyarebothgoodtopeople'shealth

　　4. WhichofthefollowingisTRUEaccordingtothepassage?

　　A. Teenagersneed4to7hoursofsleepeachday.

　　B. Fewoftheteenagershaveaphoneintheirbedrooms.

　　C. Teenagersspendtoomuchtimeonelectronicproducts.

　　D. Girlsbetween15and16spendtheleasttimeonelectronicproducts.

　　5. Whichofthefollowingisthebestsolutiontotheproblem?

　　A. ParentswatchTVtogetherwiththeirchildrea

　　B. Forbidteenagerstouseanyelectronicproduct

　　C. Teenagerslimit(限制)theiruseoftheelectronicproducts.

　　D. TheuseofthemobilephoneandMP4isnotallowedatschool.