阅读理解

Directions: In this section there are reading passages followed by multiple-choice questions. Read the passages and then mark your answers on your answer sheet.

Passage two

Of the thousands of different kinds of animals that exist in the world man has learned to make friends with an enormous number. Some are pets, and offer him companionship; some give him protection, and some do hard work which man cannot do for himself. Dogs, which serve man in all three capacities, are found in various species in all countries of the world. The Husky can live in the cold polar regions, and the Saluki is at home in the hottest parts of Central Africa. The inhabitants of certain countries are dependent for their very lives on the camel. In the West Indies the little donkey, strong and sure-footed, carrying heavy loads even in mountainous places, is a familiar sight.

Trained and tamed for many generations, domestic animals are not accustomed to wandering in search of food and shelter. They look to their masters to provide for their needs, and as long as these are supplied, they are content to do what their masters require.

All domestic animals need proper food. It must be suitable for them, sufficient in quantity, fresh and clean. Some people feed a pet dog or cat on odds and ends of table scraps, and then wonder why the animal seems listless and dull. The quantity of food depends on the size of the animal and the amount of exercise it takes. Overfeeding is as bad as underfeeding. Containers for food and water must be washed regularly if the animal is to maintain good health.

Cats and dogs do not need a place of their own, although a very big dog is better off in a doghouse than in the house. The cat, an independent creature, is very good at finding the safest and most comfortable spot when she wants to take a nap. But cows and horses and similar animals must have proper stables, clean, dry and well ventilated.

Even well cared-for animals may sometimes fall ill. If this happens, the wise master seeks the best advice he can get. All sorts of medicines and treatments are available for sick animals, and in some countries organizations exist to provide them free or at a cheap price. Useful, friendly, hardworking animals deserve to have some time, money and attention spent on their health. 

单选题 What main idea does the author want to convey in the first paragraph?
【正确答案】 B
【答案解析】第一段第一句话是全段的中心句， 从“Of the thousands of different kinds of animals that exist in the world man has learned to make friends with an enormous number” 可以推断人类已经学习和很多动物做朋友， 故B项为正确答案。
单选题 When an animal is underfed, it will probably _____.
【正确答案】 A
【答案解析】原文第二段第二句话“They look to their masters to provide for their needs, and as long as these are supplied, they are content to do what their masters require. ” 提到只要主人给它们提供它们需要的东西， 它们就会乐意听主人的命令， 可以推断如果他们不能得到足够的食物， 他们可能拒绝听主人的话， 故A项为正确答案。
单选题 Which of the following is NOT true of dogs according to the passage?
【正确答案】 D
【答案解析】原文第一段“Some are pets, and offer him companionship. . . and the Saluki is at home in the hottest parts of Central Africa. ” 提到有些动物作为宠物， 陪伴、 保护人类， 做一些人类做不了的艰难工作， 排除A项； 在世界上所有国家中， 有着各种不同种类的狗， 排除B项； 哈士奇可以居住在寒冷的极地， 而萨卢基狗可以待在中非最热部分， 排除C项。 D项文章未提到， 故D项为正确答案。
单选题 To keep a domestic animal physically fit, its owner is advised _____.
【正确答案】 B
【答案解析】原文第三段第一、 二句话“All domestic animals need proper food. It must be suitable for them, sufficient in quantity, fresh and clean. ” 提到所有家养动物都需要合适、 充足、 新鲜和干净的食物， 可以看出主人必须注意适当地喂养， 故B项为正确答案。
单选题 Which of the following would be best TITLE for this passage?
【正确答案】 A
【答案解析】纵观全文， 作者讲到家养动物可以陪伴、 保护人类， 做一些人类做不了的艰难工作； 并谈到动物、 驯化、 食物和疾病， 标题“家养动物——人类最好的守护者” 最能概括本文的主体， 故A项为正确答案。