北京师范大学网络教育———大学英语四作业一 及答案

第二部分：阅读理解（共10小题；每小题3分，满分30分）
Passage 1

    Most people feel lonely sometimes, but it usually lasts between a few minutes and a few hours. This kind of loneliness is not serious. In fact, it's quite normal. For some people, though, loneliness can last for years. Researchers say there're three different kinds of loneliness.
     The first kind of loneliness is temporary (暂时的). This is the most common type. It usually disappear quickly and does not require any special attention. The second kind, situational loneliness, is a result of a particular situation - for example, a family problem, or the death of a loved one. Although this kind of loneliness can cause physical problems, such as headaches and sleeplessness, it usually doe not last for more than a year.
     The third kind of loneliness is the most severe. Chronic (长期的) loneliness lasts more than two years and has no specific cause. People who experience habitual loneliness have problems socializing and becoming close to others. Unfortunately, many chronically lonely people think there's little they can do to improve their condition.
     Psychologists are trying to find ways to help habitually lonely people for two reasons: they are unhappy and unable to socialize and there is a connection between chronic loneliness and serious illness such as heart disease. While temporary and situational loneliness can be a normal and healthy part of life, chronic loneliness can be a very sad dangerous condition.  

第四部分：完形填空（共10小题；每小题1分，满分10分）

    Nowhere 21 seen a more untidy office than my friend Jame's. Everywhere there are papers and books. Not only 22 never to be cleaned out, but also I do not think it is ever aired, for at no time have I seen any of the windows open. Often I have 23 James that he should open one, but each time he answered, "Not just now, Henry, later". Luckily I do not have to go there very often nor do I stay there longer than I have to. Strangely enough, James is quite tidy outside his office. Only once have I seen him with a dirty 24 , for example. Nor is he careless about things like invitations. At no time 25 been known to forget a party, and no sooner does he receive an invitation 26 he answers it. Unfortunately, his office is quite differently run. Perhaps he does not like such a work. In his garden in the evenings and 27 , James is happy as soon as he gets home from the office. He begins to work in the garden. Always he seems to have some work to do there. and nowhere in his garden is there a curlier which is not tidy and well looked 28 . Seldom have I seen prettier flowers, or healthier vegetables, or smoother, greener grass than in James garden. Really. I think he ought 29 a farmer, so good is he 30 such work.