7．The federal school lunch program for 30 million low-income children was created more than half a century ago to combat malnutrition（营养不良）．A breakfast program was added during the 1960s，and both attempted to improve the nutritional value of food served at school．
More must be done to fight the childhood obesity（肥胖） epidemic，which has caused a frightening peak in weight-related disorders like diabetes，high-blood pressure and heart disease among young people．The place to start is schools，where junk food sold outside the federal meals program-through snack bars and vending machines-has pretty much canceled out the benefits of all those efforts．
Federal rules that govern the sales of these harmful foods at school are limited and have not been updated for nearly 40 years．Until new regulations are written，children who are served healthy meals in the school cafeteria will continue to buy candy drinks and high sodium（钠） snacks elsewhere in school．
Many states'school districts have taken positive steps，but others are likely to resist，especially districts that sell junk food to finance athletic program extracurricular activities，and even copier expenses．
Those districts should take note of a study released in 2009 in West Virginia showing that the budgetary costs of switching from sodas to healthy drinks such as fruit juice，milk，and water were very little．Even if the switch costs money，so be it．The school should not be trading their students'health to buy office supplies．
Over the last five decades，the obesity rates for adolescents have tripled．Unless there is decisive action，weight and inactivity-related disorders will bother a steady larger proportion of the work force and replace smoking as the leading cause of premature death．
32．According to this passage，Bare to blame for the childhood obesity．
A．weight-related disorders B．high calorie snacks
C．parents'bad habits D．unhealthy lunches and breakfast
33．Which is the main idea of Paragraph 3？B
A．Federal governments deserve high praise for their school lunch program．
B．New regulations are badly in need of updating．
C．Children should be forbidden to buy snacks in school．
D．Federal rules encourage snacks outside the school program．
34．The passage is concerned mainly withC．
A．Malnutrition in low-income children
B．The federal school lunch program
C．obesity at school
D．the nutritional value of food served at school
35．The tone of this passage isA．
A．negative B．indifferent C．optimistic D．ironic．
分析 本文属于说明文阅读，作者通过这篇文章向我们叙述了开始于学校的儿童肥胖疫情，已在体重相关的疾病如糖尿病引起的可怕的高峰，虽然许多政府学校已采取积极措施，但可能受到阻碍，改善儿童肥胖疫情的前景并不乐观．
解答 32．B．细节理解题．根据文章第三段"children who are served healthy meals in the school cafeteria will continue to buy candy drinks and high sodium（钠） snacks elsewhere in school"，他在学校的自助餐厅提供健康食物的孩子会继续在学校其他地方买糖果饮料和高钠小吃；可知儿童肥胖症是由于高卡路里零食；故选B．
33．B．推理判断题．根据文章第三段"Federal rules that govern the sales of these harmful foods at school are limited and have not been updated for nearly 40 years"，联邦规则里关于这些有害食品在学校的销售是有限的，但是没有更新已近40年；可推测新的规章制度急需更新；故选B．
34．C．主旨大意题．通读全文，可知文章主要在描述开始于学校的儿童肥胖疫情，讲述了引起病症的原因和改善的方法以及并不乐观的未来前景；故选C．
35．A．推理判断题．根据文章最后一段"Unless there is decisive action，weight and inactivity-related disorders will bother a steady larger proportion of the work force and replace smoking as the leading cause of premature death"，除非有决定性的行动，体重和不活动引起的疾病将困扰一个稳定的更大比例的工作力量，并取代吸烟作为过早死亡的主要原因；可推测作者的态度是消极的；故选A．
点评 考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．
