Schools have been blamed for giving kids access to soda in vending machines （自动售货机）．B ut new data suggest that school soft drink sales may not be an important factor in how much soda kids drink．

　　In the current issue of The Journal of Nutrition Education  and Behavior, researchers compared soda consumption among nearly 500 students in Maine who attended seven schools over  two school years．Four of the schools cut back on soft drink availability at the schools, while three of  the schools made no changes．

　　All the students were drinking less soda by the end of the study period, but  there were no meaningfu l differences in overall soft drink consumption among the different schools．The data suggest that limiting soft drink availabi lity at school doesn't result in meaningful changes in drink consumption patterns． While there were no changes in overall soda consumption, there was a notable shift in diet soda drinking among girls．If the school cut back on soda availability, girls were less likely to drink diet soda, compared to girls in schools that made no changes．

　　The data are the latest to suggest that schools may not play as big of a role in kids' poor eating habits as widely believed．Last year, The American Journal of Public Health p ublished a provocative （引起争论的） study showing  that childhood weight problems often get worse in  the summer, when kids are out o f school．

　　Data from kindergarteners and first graders found that body mass index （指数） increased two to three times as fast in summer as during the regular school year．Minority children were especially at risk, as were children who were already overweight．

　　Even children who were too thin and needed to gain weight appeared to have better eating habits during the school year．They actually gained more weight while in school and less  in the summer．

　　Even so, much of the focus on childhood nutrition and obesity （肥胖） remains in the nation 's schools．Today, The Times reported that even the school bake sale is disappearing as districts impose strict standards on the food served on school grounds．

　　64．What can be learned from The Journal of Nutrition Education and Behavior?

　　A．Soft drink remains a problem in schools．

　　B．Girls tend to consume less soda at school．

　　C．Soft drinks may not be to blame  for eating problems．

　　D．Vending machines are not available in all schools．

　　65．Better eating habits may be best developed _____ _．

　　A．during summer         B．on schooldays

　　C．with less soda availability     D．in attempts for weight-gain

　　66．The writer voices his opinion by ______．

　　A．conducting scientific research    B．comparing two journals

　　C．criticizing wrong beliefs       D．referring to ready data

　　67．Which of the following can best summarize the passage?

　　A．Schools are to bl ame for kids' nutrition problems．

　　B．Schools have made changes for a better reputation．

　　C．Kids' po or eating habit has little to do with schools．

　　D．A lot  has been done regarding kids' nutrition and obesity．[来源:Zxxk.Com]