I’m pretty confident that there will never be a day when all the world is in agreement about the best human diet. I’m an omnivore myself, but I have friends who swear by their paleo, vegetarian, and vegan diets. All of us can make compelling arguments about why we eat the way we do, and all of us can make valid criticisms of diets that are unlike our own.

　　For me, deciding how and what to eat required a close examination of the values and principles that truly matter to me. The type of food we consume has immediate health and economic consequences, but it also has a significant impact on our environment.

　　As a study shows, the manner and scale at which our society currently raises animal for human consumption contributes to climate change in major way. It also wastes water, pollutes our soil, and contaminates fresh water supplies. So if you’re really trying to live a low-impact life, eating less meat and ensuring that the meat you do eat is raised by responsible farmers and ranchers could help you shrink your carbon footprint a lot faster than buying a hybrid or skipping showers.

　　1. The author believes that ( )

　　A. people will be more and more rational in choosing the food they eat.

　　B. the arguments about what should be eaten will never come to an end.

　　C. people will someday reach a consensus on what the best food is.

　　D. people will be more and more fastidious in choosing the food they eat.

　　2. When deciding how and what to eat, the author ( )

　　A. has some important principles to follow.

　　B. will consult with his friends.

　　C. will follow the instructions of his friends.

　　D. considers only his own interests.

　　3. The type of food we eat ( )

　　A. has an indirect but great effect on our environment.

　　B. has nothing to do with our environment.

　　C. has nothing to do with our health.

　　D. is decided only by our economic status.

　　4. What is implied in Paragraph 3 ( )

　　A. We should stop raising animals for human consumption.

　　B. We should stop eating animals.

　　C. The way animals are raised for human consumption should be improved.

　　D. Environmental pollution and climate change are caused by raising animals for human consumption.

　　参考答案：

　　Passage 1

　　1. B.

　　根据第一段可知，人们永远无法对什么是最佳食物这一问题达成共识，人们永远有理由说明自己选择的食物是最好的，别人不同于自己的食物是不好的，所以选B.

　　2. A

　　根据第二段第一句(For me, deciding…)可知，作者在决定怎样吃和吃什么的时候是有原则性的，所以选A。

　　3. A

　　根据第二段第二句(The type of food…)以及第三段可知，我们吃的食物种类虽然不会像对我们的健康和经济那样对环境有直接影响，但是对环境也是有影响的，而且这种影响也是不能忽视的，所以选A。

　　4. C

　　根据第三段第一句(As a study shows…)可知，如果我们改变了养殖动物的方式和规模，我们的环境也会相应改善，所以选C。

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