【文章內(nèi)容簡介】 ted by the author is that ________. rates among youth have declined very little are now more female than male smokers among high school seniors smoking rates are due to the incease in wealth at high school are from low socioeconomic backgrounds 答案： bdbdb 大學(xué)英語四級閱讀理解試題 40 篇之五（含答案） The food we eat seems to have profound effects on our science has made enormous 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 the diet as well,especially cancer of the colon. 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 nto a new discovery. In 1945, about 35 years ago, government researchers realized that nitrates, monly used to preserve color in meats,and other food additivies,caused cancer. Yet, these carcinogenic additives remain in our food, and it bees more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this ,penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes,but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration(FDA) has tried repeatedly to control these procedures, the practices continue. is the best possible title of the passage? and Food and Health and Health and Drug of the following statements is NOT ture? are always given to animals for medical reasons of the additives in our food are added to the food itself and some are given to the living animals have known about the potential dangers of food additives for over thirtyfive years. may cause forty percent of cancer in world. has science done something harmful to mankind? of science , diseases caused by polluted food haven been virtually eliminated. has caused a lack of information concerning the value of food. of the application of science,some potentially harmful substances have been added to food. scientists have preserved the color of meats,but not of vegetables. are nitrates used for? preserve flavor in packaged foods. preserve the color of meats. are the objects of research. cause the animals to bee fatter. word 39。carcinogenic39。 most nearly means 39。_____39。. 答案： cacbd 大學(xué)英語四級閱讀理解試題 40 篇之六（含答案） As the pace of life continues to increase ,we are fast losing the art of relaxation. Once you are in the habit of rushing through lift,being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body. Stress is an natural part of everyday lift and there is no way to avoid it. In fact ,it is not the bad thing it is often supposed to be .A certain amount of stress is vital to provide motivation adn give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health. The amount of stress a person can withstand depends very much on the individual. Some people are not afraid of stress,and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first signs of unusual difficulties. When exposed to stress,in whatever form,we react both chemically and physically. In fact we make choice between fight or flight and in more primitive days the choice made the difference between life or death. The crises we meet today are unlikely to be so extreme,but however little the stress,it involves the same response. It is when such a reaction lasts long,through continued exposure to stress,that health bees serious conditions as high blood pressure and heart disease have established links with we cannot remove stress from our lives(it would be unwise to do so even if we could),we need to find ways to deal with it. are finding less and less time for relaxing themselves because_____. do not know how to enjoy themselves do not believe that relaxation is important for health are travelling fast all the time are being busier with their work to the writer ,the most impo