Question

3．The food we eat seems to have a great effect on our health．Although science has made big steps in making food more fit to eat，it has，at the same time，made many foods unfit to eat．Some research has shown that perhaps 80% of human illness is related to food and 40% of cancer is related to food as well．That food is related to illness is not a new discovery．In 1945，some researchers realized that things commonly used to keep colour in meats and other food additives（添加剂）caused cancer．
Yet，these additives remain in our food，and it is difficult to know which things on the wrappings（包装）of foods are helpful or harmful．The additives which we eat are not all so direct．Farmers often give penicillin to their animals，and because of this，penicillin has been found in the milk of cows．Sometimes similar things are supplied to animals not for their health，but just to make a profit．
The farmers are simply trying to fatten the animals in order to get a higher price on the market．Although some countries have tried to control such things，the practice continues．
1．According to this passage，we can knowB．
A．science has made food unfit to eat
B．perhaps most of human illness is caused by what we eat
C．perhaps most kinds of cancer are related to what people eat
D．cancer was discovered in 1945
2．Things that are used to keep colours in meats areB．
A．delicious                             B．harmful　　　　　　　  
C．useless                               D．helpless   
3．Which of the following is NOT true？A
A．We needn't take care of what we eat．
B．Some wrappings of food are harmful．
C．Farmers try to make more money on the market by fattening their animals．
D．"The practice continues"means"things are still going on like that"．
4．All the additivesD．
A．have direct effects on our health
B．are bright and colourless
C．are not bright and colourful
D．have indirect effects on our health．

Answer 1

分析 本文是一篇健康环保类阅读，属于说明文，主要讲述了我们所吃的食物对我们的健康有很大影响，食物可以让我们生存，但是现在的很多疾病也是与食物有关的．告诉我们要特别注意自己所吃的食物．

解答 1．答案：B．细节理解题．根据第一段3，4行Some research has shown that perhaps eighty percent of human illness is related to food and forty percent of cancer is related to food as well．说明，百分之80的疾病都是由我们吃的食物引起的，故选B．
2．答案：B．细节理解题．根据第一段后3行In 1945，some researchers realized that things commonly used to keep colour in meats and other food additives（添加剂）caused cancer．说明，这些让肉着色的添加剂会导致癌症．那么对人体是有害的．故选B．
3．答案：A．推理判断题．根据第一段前4行The food we eat seems to have a great effect on our health．Although science has made big steps in making food more fit to eat，it has，at the same time，made many foods unfit to eat．Some research has shown that perhaps eighty percent of human illness is related to food and forty percent of cancer is related to food as well．说明，食物可以让我们生存，但是现在的很多疾病也是与食物有关的．说明对于我们的食物我们要特别注意．故选A．
4．答案：D．细节理解题．根据文章第二段第二句The additives which we eat are not all so direct．说明，很多的添加剂都不是直接的影响人体的健康的．故选D．

点评 本文是一篇健康环保类阅读，题目涉及多道细节理解题，推理判断题．做题时学生应仔细阅读原文，把握文章主要内容，联系文章上下文内容并结合所给选项含义，从中选出正确答案，一定要做到有理有据，切忌胡乱猜测．