The food we eat seems to have profound effects on our health. Although 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 40 percent of cancer is related to the diet as well, especially cancer of the colon (结肠). Different cultures are more prone to get certain 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 nitrates (硝酸) and nitrites (亚硝酸盐), commonly used to preserve color in meats, and other food additives (添加剂), 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 that we eat are not all so direct. Farmers often give penicillin(盘尼西林) to beef and poultry(家禽), and because of this, penicillin has
A. Because of science, most of the foods we eat today are contaminated.
B. It has caused a lack of information concerning the value of food.
C. As a result of scientific intervention, some potentially harmful substances have been added to our food.
D. The scientists have preserved the color of meats, but not of vegetables.
Text 2
One of the least mentioned effects of change relates to how it affects the manager leading that change, and his or her ability to undertake the leadership role. We have already talked about the effects of change on the individual employee, and of course managers are subject to the same reactions, resistances and strains. Some types of change, such as restructuring, or down sizing can put considerable strain on the leaders of an organization.
One primary concern regarding change is the stress it imposes on those undergoing the change. Managers, because they have obligations to their staff, not only have to deal with change as employees but also need to carry some of the concerns of their staffs. In the case of downsizing, the stress levels can be extremely high, because the manager is charged with conveying very upsetting information.
Stress is part of the job, but in times of change, it is critical that you recognize that it may cause you to
A. avoiding changes produce short-term benefit to the business but long term loss to it.
B. those managers who often lose touch with the realities of the company tend to avoid changes.
C. denying managers can lead the company better than avoiding managers in times of change.
D. managers that deny the consequences of changes tend to care less about the emotional state of employees.
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