题文

阅读理解。

Sometimes, people are not clear about what kind of food is healthy, and what kind of food may do   harm to our health. The USDA has prepared a food guide to help people learn about which kind of food   is the healthiest to eat. The food guide describes six main food groups: meat (like fish and chicken),   dairy (like milk and cheese), grains (like bread and rice), fruit, and vegetables. The last group is fats and   sweets. The USDA also suggests (建议) how much of each food group is healthy to eat daily. Though   this guide was prepared by the US government, it is very useful for people all over the world.        As a result of years of study, we know that too much animal fat is bad for our health. For example,    Americans eat a lot of meat and only a small amount (量) of grains, fruit and vegetables. Because of   the way they eat, they have a high rate (率) of cancer (癌症) and heart disease. In Japan, people eat   large amounts of grains and very little meat. The Japanese also have a very low rate of cancer and heart   disease. The Japanese live longer than anyone else in the world. However, when Japanese people move   to the US, the rate of heart disease and cancer goes up as their eating habit changes. And as   hamburgers, ice creams and other high-fat foods become popular in Japan, the rate of heart disease and   cancer is going up there as well. People are also eating more meat and dairy food in other countries, in   which the disease rate is going up alone with the change of the way people eat. Doctors everywhere   suggest people eat more grains, fruit and vegetables and less meat and dairy food.        Eating healthily is important for children as well as their parents. When parents have poor eating   habits, their children usually do, too. After all, children eat the same way as their parents. When parents   eat healthy food, the children will learn to enjoy it, too. Then they will develop good eating habits.   Doctors suggest parents give their children healthier food such as fruit, vegetables and juice.      Everyone wants to live a long, healthy life. We know that the food we eat affects (影响) us in   different ways. For example, doctors believe that fruit and vegetables can really protect people from   many different diseases. On the other hand, animal fat can cause (引起) diseases. We can change our   eating habits now and enjoy many years of healthy living.

1. What is the USDA in the passage?

A. A group of doctors in the US.         B. An office of the US government. C. A report on diseases in the US.       D. An order given by the US president.

2. The second paragraph mainly tells us that _______.

A. Japanese are always healthier than Americans B. living in the US is not good for people's health C. if you eat too much fat you will have cancer D. the way we eat may cause some health problems

3. Which of the following is true according to the passage?

A. More and more people have good eating habits now. B. Parents' eating habits are important to their children. C. Good eating habits develop only when you are young. D. The more fruit and vegetables we eat, the longer we will live.

4. The greatest help the passage gives us is _______.

A. to introduce a food guide to the world B. to provide us with knowledge of six food groups C. to suggest a way of eating for a healthy life D. to find the main cause of some serious diseases

题型：阅读理解  难度：偏难

答案

1-4 BDBC

据专家权威分析，试题“阅读理解。 Sometimes, people are not clear about what kind o..”主要考查你对  科教类阅读  等考点的理解。关于这些考点的“档案”如下：

科教类阅读

考点名称：科教类阅读

• 科普类的阅读：
  科普类的阅读理解包含介绍科学知识、社会知识的短文。阅读这类短文时，要以事实为中心进行思考，抓住事物的特征、用途、相互关系等。
  如果是介绍社会现象的文章，要掌握所谈现象的内涵。

• 答题技巧：
  1. 加强整体意识，把握文章的主要内容。在阅读的时候可给段落标上序号，并给重要的句子和
     关键词做上记号，尤其是各段中心句，为答题提供更快捷更多的信息源。
  2. 审清题干，发觉和把握试题中有效的提示性信息，确认命题的角度、阅读范围和答题方式。
  3. 定位阅读，强化对应意识。同时要注意原文利用和自我加工相结合。