阅读理解。 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 protection, and some do hard work which man cannot do for himself. Dogs, which serve man in all three capacities, are found in various breeds 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 Cennai 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 (驯养) for many generations, domestic (家养的) animals are not accustomed to roaming (到处走) 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, enough in quantity, Fresh and clean. Some people feed a pet dog or cat on leftovers of table food, 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 most be washed regularly if the animal is to maintain good health. 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. 1. What does the author want to convey in the first paragraph? A. There exists thousands of species of animals in the world B. Man came to establish a close relationaship with a number of animals C. In some regions a donkey seems to be a very useful beast D. An animal will be useless unless domesticated 2. When an animal is not fed full and well, it will probably_______. A. refuse to obey its master B. immediately fall ill C. require its master to offer some food D. seek for food on its own 3. Which of the following is NOT true of dogs according to the passage? A. They can act as friends, guards, and servants to man B. They have great adaptation for the environment. C. There live a great variety of breeds of dogs on the globe. D. The Husky and the Saluki are the strongest breed ever known in the world. 4. What would be the best TITLE for this passage? A. Domesticated Animals-Man's Best Friend B. Proper Diet-the Road to Health C. The Advantages of Raising Domestic Animals D. Some Tips on Pet-keeping