摘要：How does TV affect children? Most children enter the world of television long 51 they enter school．70% of childcare centers 52 the TV on during a usual day．In a year.children 53 about 900 hours at school and nearly l.023 hours in front of a TV． According to the American Academy of Pediatrics.kids in the US watch TV for about four hours a day．The AAP says that children 54 than two should watch programs no more than l t0 2 hours a day．And.according to advice.children under the age of 2 should have 55 “screen time (TV.videos.computers.or video games)at all．Watching TV during the first 2 years.a very important time for brain development.can 56 many problems． 57 .watching television in moderationcan be a good thing．Preschoolers can't help 58 the alphabet on public television．Primary school students can learn about wildlife on 59 shows．And.with the evening news.parents can 60 present events．TV sometimes can be an excellent educator and entertainer． 41．A．when B．before C．until D．after 42．A．have B．turn C．put D．try 43．A．use B．get C．save D．spend 44．A．younger B．taller C．older D．shorter 45．A．no B．much C．enough D．1ittle 46．A．happen B．solve C．prevent D．cause 47．A．Of course B．What's more C．After all D．To be surprised 48．A．giving B．learning C．making D．producing 49．A．fashion B．music C．nature D．sports 50．A．take part in B．keep up with C．give advice to D．be made at

网址：http://m.1010jiajiao.com/timu_id_1361792[举报]