第四部分：阅读理解（共20小题；每小题2分，满分40分）
　阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
A
The food we eat seems to have far-reaching effects on our health. Although science has made great 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 all human illnesses are related to diet and forty percent of cancer is related to diet as well, especially cancer of the colon（结肠）. Different cultures are more likely to cause certain different illnesses because of the food that is characteristic in these cultures. That food is related to illness is not a new discovery. In 1945, government researchers realized that carcinogenic nitrates, commonly used to preserve color in meats, and other food additives(添加剂), caused cancer. Yet, these additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed（经过加工的）food are helpful or harmful. The additives, which we eat, are not all so direct. Farmers often give penicillin（青酶素） to beef and living animals, and because of this, penicillin has been found in the milk of treated cows. Sometimes, similar drugs are given to animals not for medical purposes, but for financial(财政的) reasons. The farmers are simply trying to fatten the animals in order to get a higher price on the market. Although the Food and Drug Administration has tried repeatedly to control these behaviors, the practices continue.
41．What is the best possible title of the passage?
A．Drug and health             B．Food and illness
C．food and culture         D．Health and science
42．Which of the following statements is NOT true?
A．Drugs are given to animals mostly for medical reasons.
B．Some of the additives in our food are added directly to the food and some are given to living animals.
C．Researchers have realized the possible dangers of food additives for over sixty years.
D．Food may cause 40% of cancer in the world.
43．How has science done something harmful to mankind?
A．Because of science, diseases caused by contaminated（被污染的）food have been actually reduced.
B．It has caused a lack of information concerning the food.
C．Because of the application of science, some potentially(潜在的) harmful substances（物质）have been added to food.
D．It causes the animals to become fatter.
44．The government tries to     
A．control the market price of food
B．stop the farmers from giving drugs to animals to make more money.
C．get rid of the addictives from the packaged food.
D．use no medicine on the animals