Food and Health
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 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 prone to contract 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 and nitrites, commonly used to preserve color in meats, and other food additives, caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things in 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 poultry, and because of this, penicillin has been found in the milk of treated cows. Sometimes similar drugs are administered to animals not for medicinal 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 has tried repeatedly to control these procedures, the practices continue.
2011年实用口语练习:In the bookstore 在书店里
实用口语:关于衣服的必备短语
2011年实用口语练习:睡或不睡
英语口语-商业信函用语引言
2011年实用口语练习:各种哭的说法(一)
2011年实用口语练习:出恭的各种表达
2011年实用口语练习:今天我做东
2011年实用口语练习:红歌热
2011年实用口语练习:别想宰我,我识货
2011年实用口语练习:有钱人 称心如意
2011年实用口语练习:各种睡不着
2011年实用口语练习:Select courses 选课
2011年实用口语练习:高考作弊
2011年实用口语练习:我办事你放心
2011年实用口语练习:你担心什么呢?
2011年实用口语练习:Assignment 家庭作业
2011年实用口语练习:“挑刺儿”
2011年实用口语练习:与天气有关的口语(下)
如何提高英语口语
2011年实用口语练习:歉意如何说出口 1
2011年实用口语练习:你把事情搞砸了
2011年实用口语练习:不得不分
如何用英语表达“原来啊…”
2011年实用口语练习:各种“乱七八糟”的表达
英文各种各样的“钱”你都认识么?
2011年实用口语练习:“锅中的火花”
2011年实用口语练习:生活奢华的猪
对学英语最有帮助的英文绕口令
八句话表达感情纠葛
如何用英文表达“满意”
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |