题目内容
19．People are overweight for many reasons，the most important one of which is that they eat the wrong foods，get the wrong types of calories per meal，and they also eat meals at the wrong time each day．Food is more powerful than any weight loss pill，because the food that you eat can either make you thin or fat．This is true because your body is like an engine，and it only needs certain foods at certain intervals（间隔） each day．Low-calorie Diets Do Not Work
The reason people cannot lose weight by starving themselves is that their metabolism（新陈代谢） will detect any major drop in calories and it will then adjust itself by burning fewer calories each day．That is the reason why you can eat 1，000calories per day and not lose any weight，while your friends can eat 2，500calories per day and not gain any weight．
Low-fat Diets Do Not Work
Many people in today's society are buying mostly low-fat or non-fat food at the grocery store．Everybody knows how much fat is inside the food they buy．However，people are getting fatter than ever before by doing this．They are not losing weight by changing to this low-fat lifestyle．
Losing weight has nothing to do with these things．One of the most important things you can do to control your weight is to eat the proper foods，such as fruit and vegetables，eat them at the right time，and exercise every day．If people make this a habit，they will lose weight．
25．What is the main reason why people are overweight？B
A．They burn many calories every day．
B．They eat the wrong foods at the wrong time．
C．They eat food with lots of calories．
D．They don't take weight loss pills．
26．The article is written in order toC．
A．tell readers not to buy low-fat or non-fat food．
B．tell readers about an important scientific discovery．
C．tell readers how to lose weight．
D．call on people to lose weight and stay healthy．
27．To realize the aim of your weight loss plan，you shouldA．
a．do exercise every day
b．eat meals at the right time
c．eat fruits and vegetables
d．eat low-fat or sweet food
e．eat the proper foods at each meal
A．a，b，c，e
B．a，b，d，e
C．a，c，d，e
D．a，b，c，d．
分析 本文是关于减肥的一些误区以及如何减肥的一些具体建议．
解答 25．B 细节理解题．根据第一段the most important one of which is that they eat the wrong foods，get the wrong types of calories per meal，and they also eat meals at the wrong time each day．其中最重要的一点是，他们吃错了食物，每餐吃错了卡路里，而且他们每天都在错误的时间吃饭．所以答案选B．
26．C 主旨大意题．通读全文可知文章是关于如何减肥的．给减肥者提出了几条减肥的具体建议，所以答案选C．
27．A 细节理解题． 利用排除法．根据文章中两个黑体字段落Low-calorie Diets Do Not Work和段落Low-fat Diets Do Not Work．可知d的描述是错误的，排除d．所以B、C、D选项是错误的，答案选A．
点评 本文考查细节题为主，细节题可以在文章中直接找到与答案有关的信息？或是其变体．搜查信息在阅读中非常重要它包括理解作者在叙述某事时使用的具体事实、数据、图表等细节信息．在一篇短文里大部分篇幅都属于这类围绕主体展开的细节．做这类题一般采用寻读法？即先读题，然后带着问题快速阅读短文，找出与问题有关的词语或句子，再对相关部分进行分析对比，找出答案．
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