Ⅰ.阅读理解
Any diet on which you eat fewer calories than you need to get through the day—like an 800calorieperday diet can be dangerous. Diets that don't allow any fat also can be bad for you. Everyone needs a certain amount of fat in their diet—up to 30% of total calories—so no one should eat a completely fatfree diet.
Don't have diets that restrict (限制) certain food groups，either. A diet that requires you to say no to bread or pasta or allows you to eat only fruit is unhealthy. You won't get the vitamins and minerals you need. And although you may lose weight, you'll probably gain it back as soon as you start eating normally again.
Some people start dieting because they think all the problems in their lives are because of weight. Others have an area of their lives that they can't control, like an alcoholic parent, so they focus on something they can control—their exercise and food intake.
People who diet may get lots of praise from friends and families when they start losing pounds, which makes them feel good. But eventually a person reaches a weight level and doesn't lose as much weight as before because the body is trying to keep a healthy weight, so they aren't any happier.
Some people may find it hard to control their eating, so they stick with an extreme diet for a little while, but then eat tons of food. Feeling guilty about the binge, they use laxatives (泻药). Eating too little to maintain a healthy weight and eating only to throw up the calories are both eating disorders, which are harmful to a person's health.
语篇大意：本文叙述了节食与减肥的关系。过度节食对身体有害处。
1．Which is NOT the result of restricting certain food groups?
A．Lose weight for a short period.
B．Unhealthy.
C．Short of nutrition.
D．Hungry.
答案：D
解析：细节理解题。根据文中第二段内容可知不吃某些种类的食品(是因为吃这些食物容易发胖，所以用其他食品代替)并不会导致饥饿。
2．Which of the reasons why some people start and keep dieting is NOT included?
A．They think their trouble comes from their weight.
B．They have an alcoholic parent.
C．Other people's praise when they lose some weight.
D．There is something they can't control except food intake.
答案：B
解析：细节理解题。文中第三段提到了一些人们开始减肥的原因，第四段又提到当他们减掉一些体重时会得到朋友和家人的赞扬，使他们感觉很好，因此会坚持一段时间。而B项所叙述的内容并不是他们减肥的原因。
3．The underlined phrase in the last paragraph refers to .
A．a fatfree diet
B．a special diet
C．eating too much
D．eating too little
答案：D
解析：词义猜测题。根据本句后面的but then eat tons of food以及最后一句中的Eating too little to maintain a healthy weight可知答案为D项。
4．According to the passage, when people want to lose weight, they should .
A．avoid eating some food that can lead to being fat
B．control their eating amount and times
C．have a healthy and balanced diet
D．throw up some of what they eat
答案：C
解析：主旨大意题。根据全文内容可知即使减肥，为了身体所需也必须做到饮食健康均衡。因此正确答案为C项。
