10．"I'd like to be at a healthier weight，"a friend told me．"But we just don't have the money to buy expensive diet foods and there isn't enough money to join a gym．"Many people feel that way-that a healthy diet and exercise plan is out of reach because of their high cost．Don't lose hope!We'll be looking at ways to make healthy choices without spending too much money．
First you don't need to buy the expensive pre-prepared"diet foods．"Back in the early 1970s when I started housekeeping，90% of the food I bought was ingredients．Very few things were preprocessed （预处理的）．Now 90% of the food you find in the store is quick food．That's a bad thing．
Quick foods like boxed"just add hamburger"meals have had the fiber （纤维） removed to make them faster to prepare．Take a look at the label （标签） on that box．It often has low numbers listed under"fiber"because fiber takes longer to digest．If the low fiber meal is digested，the result is that your body begins to store fat．Besides，your body is short of nutrients （营养物质）．You will be driven to eat more to try to make up for the low quality of the food you are eating．
And then there are the chemicals the producers add to the quick meals to make them palatable．If not，the stuff would taste like cardboard and you wouldn't enjoy it．However，these chemicals certainly aren't good for your health．
What's the answer？Buy whole ingredients and give up the expensive，low nutrition，processed foods．Do the cooking yourself and you will have control over what is in your food-and it will cost less，too．
29．People who find it hard to get a healthier weight thinkD．
A．they had too much diet food
B．they didn't make a detailed plan
C．they have no time to do exercise in gym
D．they can't afford diet food and to exercise in gym
30．The author doesn't like quick food mainly becauseC．
A．it contains too much fat
B．it makes people eat more
C．it has low fiber
D．it takes longer to digest
31．The underlined word"palatable"in Paragraph 4 meansB．
A．fresh B．delicious C．healthy D．poor
32．The author suggests in the text that people shouldC．
A．control the amount of food
B．eat more processed foods
C．cook food for themselves
D．choose cheap ingredients．
分析 文章介绍了垃圾食品的危害，并提出了自己的建议并建议我们自己买，自己做．
解答 28．D 细节理解题．根据第一段Many people feel that way-that a healthy diet and exercise plan is out of reach because of their high cost许多感觉，健康的饮食和锻炼计划是不可能，因为花费太多，故选D项．
29．C 细节理解题．根据第四段Take a look at the label on that box．It often has low numbers listed under"fiber"because fiber takes longer to digest．说明在快餐中纤维的含量很低，故选C项．
30．B 词义猜测题．根据下句If not，the stuff would taste like cardboard and you wouldn't enjoy it说明，如果不加chemicals，这些食物吃起来就像木板，没有味道，就会不喜欢了，那么该词指可口，故选B项．
31．C 细节理解题．根据文章最后一句Do the cooking yourself and you will have control over what is in your food-and it will cost less，too．说明作者建议我们自己买，自己做．故C正确．
点评 本文是一个科教类阅读理解，题目涉及多道细节理解题，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据．
