Youmayknowabout"junkfood"likeFrenchfries.Butdoyouknowabout"junksleep"?RecentlyaBritishsurveyfoundthatelectronic(电子)productsinteenagers'bedroomsareaffecting(影响）theirsleep.Thesurveywasdoneamong1，000Bri

　　 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.