Question

The food we eat seems to have profound effects 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 80 percent of all human illness are connected with diet and 40 percent of cancer is connected with the diet as well that food is connected with illness is not a new discovery. In 1940’s scientists realized that nitrates（硝酸盐）, which are often used to keep color of meat, and other additives（添加剂）caused cancer. However these additives remain in our food and it becomes more difficult to know which additives are helpful or harmful. Farmers sometimes give drugs to animals not because the animals are ill but because they want to sell the animals at higher prices. For example farmers try hard to make animals grow big so that they can sell the big animals for more money. Although the Food and Drug Administration has tried again and again to control farmers to do so, farmers go on doing this.

1. According to the passage, what has science done to mankind?

　 A. Because of science there is no polluted food any more.

　 B. Science makes food have less value.

　 C. As a result of scientific invention, some things that may be harmful have been added to our food.

　 D. Now the scientists can keep the color of meat but not that of vegetable.

2. What are nitrates used for?

　 A. They keep flavor of food.

　 B. They keep the color of meat.

　 C. They keep food fresh.

　 D. They make animals fatter.

3. According to the passage, which of the following statements is true?

　 A. Some additives besides nitrates can cause cancer.

　 B. All additives cause illness.

　 C. All additives can cause cancer.

　 D. Nitrates except other additives can cause cancer.

4. The word “profound” underlined means 　　　　　 .

　 A. good　　　　 B. bad　　　　 C. much　　　　 D. great

5. Which of the following statements is NOT true?

　 A. Drugs are always given to animals for medical reasons.

　 B. Some additives in our food are added not only to the food but also to the animal.

　 C. Scientists knew that some additives are harmful to people over fifty years ago.

　 D. Food may cause 40 percent of cancer in the world.

 

Answer 1

1～5 CBADA