[[大学英语一》试题1答案.docVIP

《大学英语一》试题1 Part I. Reading Comprehension Directions: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A. B. C and D. Choose the ONE you think is the best answer. Questions 1 to 5 are based on the following passage. Risk of mad cow disease, and heart disease isnt the only reason to eat less meat: the planet simply cannot sustain a population that increasingly feeds on animal protein (蛋白质), says the U.K. governments Sustainable Development Commission. The problem lies in that animals consume vast supplies of land, crops, water and other resources in order to produce a much smaller quantity of animal protein for human consumption. The fast growing population of animals for use in the human food supply is being described as, ... one of the biggest environmental crises were now facing. Then, theres the environmental impact of raising so many animals for food in the first place. Thousands of acres of rainforest continue to be cleared in South America in order to convert jungle to grazing land (牧场) for cattle. That alone is alarming, and yet thats only the beginning. Cows, chickens and pigs produce waste on a massive scale, and that waste is often drained directly into rivers or – this is true -- fed back to other animals. Then, theres the use of water. Animals drink enormous quantities of water while they grow. As water becomes increasingly scarce in decades to come, this will become an issue of great contention (争论). So, it seems that from an environmental point of view, responsible citizens should greatly reduce their consumption of animal protein. Finally, theres the ethics (行为准则) of eating meat. One of the reasons I dont eat red meat in particular is because red meat comes from intelligent mammals (哺乳动物): cows and pigs. These beings have social structures, they communicate with each other, and they most definitely feel pain. To raise an intelligent a