閱讀理解。
Linda has been a vegetarian for years. She stopped eating meat because of how she felt As she told her
doctor, she always felt tired. Her doctor looked her over and told her to eat less meat She bought a vegetarian
cookbook and decided to "go all the way". She still eats eggs and cheese sometimes; now, however, most of
her food is vegetables, fruits, and grains. Linda became a vegetarian to improve her health.
Nancy is an animal lover. Nancy grew up on a farm where there were cows and chickens. As she grew
older, she started to eat less meat. One day she realized that she had stopped eating meat. It had never seemed
right to her that animals were fed to be killed for food.
When Mark was a student, he had a careful plan of how to spend money. The little money that he had for
food, he spent on rice, cheap vegetables. He learned to be a very good cook. Now Mark is a successful
engineer, but he still eats simple foods, and no meat.
Roy is an environmentalist. He knows that the population is increasing faster and faster, but the land for
growing food is not increasing at all. He knows that it takes sixteen kilos of grain to make one kilo of meat;
he thinks about the fifteen kilos of grain that are wasted if he eats meat "Somewhere," he says, "someone
hasn't got enough to eat and is dying. How can I enjoy a thick steak?" Mark's ideas about what is right and
wrong make him a vegetarian.
1.According to the passage, a vegetarian usually will not eat ______.
2.Linda became a vegetarian because ______.
A.her doctor asked her to do so
B.she was badly ill
C.she enjoyed eating vegetables
D.she wanted to be healthier
3.Mark became a vegetarian ______.
A.when he was a student
B.after he was able to cook vegetables well
C.after he became an engineer
D.because he thought vegetables were nice
4.Which of the following is true?
A.Linda only eats fruits and vegetables.
B.We aren't sure when Roy became a vegetarian.
C.Nancy became a vegetarian when she was old.
D.Roy doesn't like steak at all.
5.The main idea of this passage is that ______.
A.people choose to be vegetarians for different reasons
B.people become vegetarians because they don't like meat
C.meat is not good for one's health
D.we had better become vegetarians