单选题 Trees are useful to man in three very important ways: they provide him with wood and other products, they give him shade, and they help to prevent droughts (干旱) and floods. Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important. In his eagerness to draw quick profit from the trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. Two thousand years ago, a rich and powerful country cut down its trees to build warships, with which to gain itself an empire (帝国). It gained the empire but, without its trees, its soil became hard and poor. When the empire fell to pieces, the home country found itself faced by floods and starvation. Even though a government realizes the importance of a plentiful supply of trees, it is difficult for it to persuade the villager to see this. The villager wants wood to cook his food with; and he can earn money by making charcoal (木炭) or selling wood to the townsman. He is usually too lazy or too careless to plant and look after new trees. So, unless the government has a good system of control, or can educate the people, the forests will slowly disappear. This does not only mean that the villagers' sons and grandsons have fewer trees. The results are even more serious: for where there are trees, their roots break the soil up—allowing the rain to sink in—and also bind the soil, thus preventing its being washed away easily; but where there are no trees, the rain falls on hard ground and flows away from the surface, causing floods and carrying away with it the rich topsoil, in which crops grow so well. When all the topsoil is gone, nothing remains but a worthless desert.

单选题Tom is one of the boys who ______ on time.

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单选题I argued with my parents until they finally ______ and let me drive every day.

单选题The underlined word "diminish" can be replaced by ______.

单选题He was so absorbed ______ his work that he didn't notice me entering his room.

单选题Law and medicine are ______ professions in most countries. A. respectable B. respectful C. respective D. repetitive

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单选题The medicine has many functions, ______ are unknown to us.

单选题It Was not until I had read your last 1etter that l understood the true state Of the sad fortunes Of his family．

单选题It has never ______ to me to ask him for advice.A) happenedB) appearedC) arisenD) occurred

单选题Directions: {{I}}After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 to 40. For each question or statement there are 4 choices marked A), B), C) and D). You should make the correct choice and mark the corresponding letter on the Answer Sheet with a single line through the center. {{/I}} Studies of whales in captivity (囚禁；被拘留的状态) have taught us much about their physiology (生理学) as well as their complex social behavior. Their learning and problem-solving skills, together with their curiosity and often eager interactions with humans, have led some scientists to believe that whales possess a high level of intelligence. The large brains of whales also suggest a high intelligence. The sperm whale's (抹香鲸) brain is considerably larger than an elephant' s brain and six times the size of a human brain. However, relative to the rest of the body, a sperm whale's brain is only about 0.02 percent of its body weight, while a human brain is about 2 percent. These animals tend to rely on hearing more than vision, which explains why the visual centers of their brains are smaller proportionally than those in humans. Another feature is the degree of folding of the upper surface of the brain. This folding increases the surface area and has been observed in more intelligent animals. Whale brains generally show as much or more folding area as is seen in humans. Complex behavior may reveal more about whale intelligence than brain size. Perhaps the most interesting indications of whale intelligence came with the discovery in the 1970s of whale singing. Singing is most common on the winter mating grounds, for example in the Caribbean and Hawaii. There is no solid evidence that the songs encode language in an intellectual sense. The whale songs may be simply longer versions of the mating songs also noted in birds and amphibians(两栖动物).

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单选题In the______half of the 17th century those cities became even more prosperous.A) latterB) latestC) laterD) late

单选题Directions : This section is to test your ability to understand short conversations. There are 2 recorded conversations in it. After each conversation, there are some recorded questions. Both the conversations and questions will be spoken two times When you hear a question,you should decide on the correct answer from the four choices marked A ), B), C) and D) given in your test paper. Then you should mark the corresponding letter on the Answer Sheet with a single line through the center. Conversation 1

单选题______ second thoughts, I have decided to give up my visit to Shanghai.

单选题I think that Anna is ______ far the most active member in our group.

单选题______ his permission, there would be no such opportunity offered.

单选题A Dream of Red mansions is said ______ into dozens of languages in the last decade.

单选题It suddenly occurred to me that this was an act I could never do.A) 我突然学会了一个我原来从来也不会做的动作。B) 我突然意识到这是一个我绝对不会采取的行为。C) 一个我永远也做不会的动作突然发生在我身上。D) 我突然想到这是一个我绝对不会做的动作。