2017年上半年大學英語四級考前衝刺練習題
山不厭高,水不厭深。 驕傲是跌跤的前奏。以下是小編為大家搜索整理的2017年上半年大學英語四級考前衝刺練習題,希望能給大家帶來幫助!更多精彩內容請及時關注我們應屆畢業生考試網!
The food we eat seems to have profound effects on our ough 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, commonly used to preserve color in meats,and other food additivies,caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes 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
er and Health
and Health
th and Drug
h of the following statements is NOT ture?
s 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
archers have known about the potential dangers of food additives for over thirty-five years.
may cause forty percent of cancer in world.
has science done something harmful to mankind?
use of science , diseases caused by polluted food haven been virtually eliminated.
has caused a lack of information concerning the value of food.
use 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 become fatter.
word 'carcinogenic' most nearly means '_____'.
ble-making
r-retaining
y-making
er-causing
答案:cacbd
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