阅读理解。 Very old people do raise moral problems for almost everyone who comes into touch with them. Their values-this can not be repeated too often-aren't necessarily our values. Physical comfort, cleanness and order are not necessarily the most important things. The social services from time to time find themselvesfaced with a room with rotten food covered by small worms, and an old person lying alone on bed, taking no notice of the worms. But is it interrupting personal to insist that they go to live with some of their relatives so that they might be taken better care of? Some social workers, the ones who clear up the worms, think we're in er of carrying this idea of personal to the point where serious risks (冒险) are being taken with the health and safety of the old. Indeed, the old can be easily hurt or harmed. The old is like a car: it needs more mechanical repair as itgets older. You can carry this comparison right through to provision of spare parts. But never forget that such operations are painful experiences, however good the results are. And at what point should you stopto treat the old body? Is it morally right to try to push off death by continuing the development of medicine to excite the forgetful old mind and to make the old body active, knowing that it is designed to die? You cannot ask doctors or scientists to decide, because so long as they can see the technical chances, they will feel it necessary to give them a try, by the rule that while there's life, there's hope. Talking to the old, however, you're forced to the conclusion that whether age is happy or unpleasantdepends less on money or health than it does on your ability to have fun. 1. After reading Paragraph l, we learn that _____. A. very old people are able to keep their living places very clean B. old people enjoy living alone so as to have more personal C. every old people enjoy living with their relatives D. social services have nothing to do with very old people 2. Some social workers think that _____. A. old people should keep their living places clean B. one should not take risk dealing with old people C. health and safety are more important than personal D. personal is more important than health and safety 3. In Paragraph 3, the underlined word "it" refers to _____. A. one's memory or health B. the conclusion you have come to C. whether age is happy or unpleasant D. you talk to the old people 4. The writer of this passage thinks that _____. A. it is always morally right to treat old people and push off deathB. the opinion that we should try every means possible to save old people is uncertain C. old people can enjoy a happy life only if they are very rich D. medical decisions for old people should be left to the doctors