A
Here comes a great new book．It has claimed that people can lose weight by eating anything they want，but only during a set eighthour period．The 8Hour Diet：Watch the Pounds Disappear Without Watching What You Eat! is cowritten by David Zinczen and Peter Moore．
They argue that staying up late and eating around the clock is responsible for the high rates of diabetes and obesity．Our bodies can't process the food we eat after these hours．These calories end up where they shouldn't，around our bellies and butts (臀部)．The book claims we can lose ten pounds in a week and up to 20 pounds in six weeks，and asks that we choose any eighthour window for eating，such as 9 am to 5 pm or 11 am to 7 pm．
Staying up and eating late may be the cause of diabetes．Simply，limiting food intake to 8 hours gives people all the benefits—without having to worry about food intake．
In the simplest terms，the 8hour diet is a way of extending the period between our last snack and our breakfast，giving our body the chance to burn away our fat stores for the energy it needs．
Restricting the time period during which we eat makes our body burn more calories in the day．So the longer we eat，the lazier our metabolism (新陈代谢) becomes．However，if we fit food intake into an eighthour window, our body burns more calories day and night as well as preventing diseases，such as diabetes and heart diseases．
【语篇解读】 本文是一篇说明文，介绍了新书The 8Hour Diet：Watch the Pounds Disappear Without Watching What You Eat! 的具体内容，这本书主要介绍健康饮食习惯。
1．According to the book，people should ．
A．eat as little as possible
B．develop an 8hour diet
C．eat as slowly as possible
D．have more than three meals a day
B [推理判断题。根据第二段最后一句“The book claims we can lose ten pounds in a week and up to 20 pounds in six weeks，and asks that we choose any eighthour window for eating，such as 9 am to 5 pm or 11 am to 7 pm．”可知这本书里推荐的饮食习惯能够有效地帮助人们减肥，人们应该养成这样的饮食习惯。]
2．If you eat breakfast at 8 am，you had better eat your next meal at ．
A．4 pm B．6 pm
C．8 pm D．10 pm
A [细节理解题。本文介绍的是一种减肥的饮食习惯“an 8hour diet”建议人们在8小时之内吃饭，题干中提及早晨8点吃早饭，那么应该在8小时以后吃下一顿饭，也就是下午4点。]
3．The underlined sentence may mean ．
A．if we keep fit by having enough food
B．if we take in food for eight hours
C．if we limit the food we eat to certain types
D．if we eat food within an eighthour period
D [句意理解题。根据本句“if we fit food intake into an eighthour window”中的“eighthour window”就是指文章中推荐的“an 8hour diet”，故D项正确。]
4．What's the purpose of the passage?
A．To show people what to eat．
B．To explain some habits on health．
C．To introduce a new book on health．
D．To warn people of unhealthy habits．
C [主旨大意题。本文是一篇说明文，介绍了新书“The 8Hour Diet：Watch the Pounds Disappear Without Watching What You Eat！”的具体内容，这本主要介绍健康饮食习惯。]
