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In October 1949 the United Nations brought a number of specialists on food on Geneva, to discuss the problems of eating habits and food supplies of people throughout the world. One problem that interested the specialists particularly was a form of illness, about which little was known among the children in Africa.
Two doctors were chosen to make the study. They flew to Africa and during the next two months visited ten countries. They found that serious diseases of poor eating, often mistaken for other diseases, existed in all parts of Africa. The diseases were similar and could therefore all be named kwashiorkor(恶性营养不良).
The diseased children are usually from one to four years old. As the illness progresses, the child’s stomach becomes swollen(肿胀的) by liquid collecting in the body. The skin changes colour and may break out in open sores(伤口). The hair changes colour and starts to fall out. The patient loses all interest in his surroundings and even in food, and becomes so weak that he wants to lie down all the time. Stomach liquids are no longer produced.
The doctors reasoned that kwashiorkor was found in the young children of this age in many parts of Africa because of lack of milk or meat. Their mothers, after stopping their breast-feeding, gave them foods full of starches(淀粉) instead of greatly needed proteins(蛋白质). They found that the addition of milk to the food of children suffering from kwashiorkor saved many lives.
It was necessary that the children of Africa be helped to eat better. The doctors suggested that the production of foods rich in protein be increased; they thought that more fish should be caught and more nuts should be grown. That urged education plans to teach mothers better ways of feeding children. They suggested that the United Nations should send large quantities of powdered milk to hospitals and child-health centres. Finally, they suggested closer study of all the special problems connected with kwashiorkor.
71. Kwashiorkor is a disease which is caused by _______ .
A. poor living conditions
B. another unknown disease
C. having no food
D. not having enough protein
72. One difficulty in discovering kwashiorkor is that _______ .
A. people know nothing about it
B. it is like other diseases
C. it is hard to see signs of it
D. it does not last long
73. A main sign of the disease is that children who have it _______ .
A. cannot sit still
B. cannot walk
C. have a large stomach
D. are always hungry
74. A good way to cure the disease is by _______ .
A. eating better B. eating more starches
C. eating fruits D. drinking pure water
75. The United Nations can help to put an end to kwashiorkor by sending _______.
A. drugs
B. food with high protein content
C. medical teams
D. clean food
查看习题详情和答案>>In Canada you can find dogs, cats, horses, etc. in almost every family. These are their pets. People love these pets and have them as their good friends. Before they keep them in their houses, they take them to animal hospitals to give them injections(注射)so that they won't carry disease. They have special animal food stores, though they can get animal food in almost every kind of store. Some people spend around two hundred Canadian dollars a month on animal food. When you visit people's houses, they would be very glad to show you their pets and they are very proud of them. You will also find that almost every family has a feeding place for birds in their garden. All kinds of birds are welcomed to come and have a good meal. They are free to come and go and nobody is allowed to kill any animal in Canada. They have a law against killing wild animals. If you killed an animal, you would be punished. If an animal happened to get run over by a car, people would be very sad about it.
People in Canada have many reasons to like animals. One of them might be that their family ties are not as close as ours. When children grow up, they leave their parents and start their own life. Then the old will feel lonely, but pets can solve this problem. They can be good friends and never leave them alone.
1.The passage mainly talks about____ .
A. how to keep disease from pets B. pets in Canada
C. how to take good care of pets D. life of the old in Canada
2.They give their pets injections before keeping them at their houses because ____.
A. the pets are sick
B. the pets are wild
C. they want to stop them from getting sick
D. they want them to sleep on the way home
3.In Canada, children leave their parents when they grow up because ____.
A. they don't love their parents any more
B. they can only find jobs far from their parents
C. their parents houses are too small
D. they wouldn't depend on their parents any more
4.Which of the following is TRUE？
A. People buy animal food only at the animal food stores.
B. Pets eat better than people.
C. Almost every family has a birdcage in his house.
D. Any bird can come to the bird feeders to eat
5.From the passage we know that Canadians_____
A.love animals B.don't like animals
C.often kill animals D.often keep their pets outside their house
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He didn't think about feeding the dog because he had his mind ________ more important things.
A．in B．to C．on D．over
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