Question

Any diet on which you eat fewer calories than you need to get through the day — like an 800-calorie-per-day 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 fat-free 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 family 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（瀉藥）. Eating too little to maintain a healthy weight or eating only to throw up the calories are both eating disorders, which are harmful to a person's health.
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
2. The reasons why some people start and keep dieting DON’T include__________.
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.
3. The underlined phrase in the last paragraph refers to _________.
A. a fat-free diet               B. a special diet   
C. eating too much            D. eating too little
4. Which of the following statements is true?
A. A person needs about 800 calories each day.
B. A person who doesn’t eat bread is unhealthy.
C. An improper diet may cause eating disorder.
D. Fat takes up the most part of calories inside body.
5. 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  

Answer 1

1-5 DBDCC

1.本題為細節(jié)題。根據(jù)文中第二段內容可知答案為D項。根據(jù)文中內容可知不吃某些種類的食品（是因為這些食物容易導致發(fā)胖，所以用其它食品代替）并不會導致饑餓。
2.本題為細節(jié)題。文中第三段提到了一些人們開始減肥的原因，第四段又提到當他們減掉某些體重時會得到朋友和家人的贊揚，使他們感覺很好，因此會堅持一段時間。而B項所敘述內容只是用來列舉某些人生活中有一些無法控制的事情，并不是他們減肥的原因。
3.本題為詞義猜測題。根據(jù)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可知答案為D項。
4.本題為細節(jié)判斷題。從文中第一段可知人體每天所需要的能量要多于800卡路里，可知A項錯誤；再者該段說明脂肪占人體所消耗能量的30%，并沒有說明所占數(shù)量最大，因此可排除D項；另外根據(jù)第二段可知面包只是屬于某種類別的食物，因此B項敘述錯誤；根據(jù)最后一段可知正確答案為C項。
5.本題為主旨大意概括題。根據(jù)全文內容可知即使減肥，為了身體所需也必須做到健康均衡飲食。因此正確答案為C項。