单选题The study of ecology is important for everyone who cares about our world. Air, water, and land -- we would not live without any of these. But what do we mean by land? It is the earth beneath our feet, wherever we are. It is mountains and plains. It is wide fields for growing com and wheat. Or it may be an airfield or a parking lot or a highway or a whole city -- land covered with cement, asphalt, and buildings. Land is the solid part of the Earth. Land is the soil plants grow in. That is the most important things about the land -- it is the place where green plants grow. Without green plants there would be not life on Earth. Green leaves make oxygen. All of us -- ants, elephants, people, every living creature -- must have oxygen to stay alive. We breathe in oxygen and our bodies use it. Carbon dioxide is formed in the process and we breathe it out. Leaves use carbon dioxide along with water to make food for plants. Then they give off oxygen. This process has been going on for millions of years. It is part of the pattern of our natural life on Earth. This pattern had changed very little for millions of years before people arrived on Earth. People found ways to improve their lives by changing nature, by trying to make nature fit in with their way of life. Warm houses in winter, electric lights at night, factories to produce our food, our clothes, our gadgets(零用品) -- all this people have accomplished. And we learned to grow more food on the land than nature could grow without our help. All this is good -- up to a point. But it has gone too far. We have produced too much and we have failed to see what this was doing to our world. We have not understood the ways in which all living things on Earth depend on one another. We ourselves have increased until the sheer numbers of people on Earth have upset the balance of nature.

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, man has not realized that the third of these services is the most impor- tant. Two thousand years ago a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. 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 flood and starvation. Even though a government realizes the importance of a plentiful supply of trees, it is difficult for it to persuade villagers to see this. The villagers want wood to cook their food with; and they can earn money by selling wood. They are usually too lazy to plant and look after the trees. So, unless the government has a good system of control, or can edu- cate the people, the forests will slowly disappear. This does not only mean that the villagers' children and grandchildren will 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 flood.

单选题They went away for a fortnight on holiday.

单选题For Asians, the comfortable zone______.

单选题Directions: In this part there are four passages, each followed by five questions or unfinished statements. For each of them, there are four suggested answers. Choose the one that you think is the best answer. Mark your answer on the ANSWER SHEET by drawing with a pencil a short bar across the corresponding letter in the brackets. As people continue to grow and age, our body system continues to change. At a certain point in your life your -- body systems will begin to weaken. Your joints may become stiff. It may become more difficult for you to see and hear. The slow change of aging causes our bodies to lose some of their ability to bounce back from disease and injury. In order to live longer, we have always tried to slow or stop this change that leads us toward the end of our lives. Many factors contribute to your health. A well-balanced diet plays an important role. The amount and the type of exercise you get is another factor. Your living environment and the amount of stress you are under is yet another. But scientists studying senescence want to know: Why do people grow old? They hope that by examining the aging process on a cellular level medical science may be able to extend the length of life.

单选题The Xinhua bookstore chain, China's largest official publishing enterprise, has become a surprising flash point for interest among foreign venture capital investors. "We are actively promoting the process of shareholding reform. Everyday, we receive lots of offers from domestic and foreign investors interested in getting involved and may pick one or two to do so in the next two to three months," Zhang Yashan, the leading cadre of the head store's office said. According to a company insider who requested anonymity, several securities firms are overseeing Xinhua bookstore's reform and the company could list on the domestic stock market once reforms are reported to the government in May and then completed. The source would not reveal the specific names of the firms involved or details of the reform. "We will stipulate that we must remain the majority shareholder, but we will welcome all kinds of investment, including foreign capital, to establish a shareholding enterprise. We hope the No. 2 shareholder will be a foreign enterprise," the source said. In keeping with its World Trade Organization entry promises, China must allow foreign investment in domestic publication retailers by the end of this year.

单选题I'm glad that Peter decided to come to the party because we ______ him for several years. A. haven't seen B. don't see C. didn't see D. hadn't seen

单选题A: Good morning, madam. I wonder if you could spare me a few minutes of your time? B: ______ A: Well, actually I represent the New British Encyclopedia. B: Oh, not today. Thank you!

单选题The U.S. birthrate began to decline in the middle 1950's, resulting in a smaller College age population starting in the middle 1970's. Something else happened in the 1970's: the price of oil increased tremendously, driving up the price of almost everything and making Americans aware that their large automobiles used a lot of gasoline. At the same time, foreign car manufacturers had begun to produce small fuel efficient cars in large quantities for the export market. Suddenly, the large, gas guzzling American cars were no longer attractive to American buyers, who began buying foreign cars by the thousands. The American automobile industry went into a recession. Thousands of automotive workers were laid off, as were thousands of people in industries indirectly connected with the auto industry. People who are laid off tend to keep what money they have for necessities, like food and housing. They do not have the extra money needed to send their children to college. Their children cannot pay their own college costs, because during a recession they cannot find jobs. High unemployment means that more state funds must be used for social service—unemployment benefits and to aid dependent children, for example—than during more prosperous times. It also means that the states have fewer funds than usual, because people are paying fewer taxes. Institutions of higher education depend on two major sources of income to keep them functioning: tuition from students and funds from the states. At the present time, there are fewer students than in the past and fewer state funds available for higher education. The colleges and universities are in trouble.

单选题 Man have often been praised by being told that they were as smart as a Philadelphia lawyer.No one knows why there is something special about Philadelphia lawyers, but the expression"smart as a Philadelphia lawyer" seems to have come from a famous trial early in the 18th centu-ry. An Englishman, William S. Cosby arrived in New York as the royal governor of the province.He was a tyrant. He wanted to make money quickly and he ruled the province with no thought forthe law or the rights of the people. Among those who opposed his rule was John Peter Zingcr whocame to America from Germany. Mr. Zinger started a newspaper which praised liberty and sharplycriticized the governor. Governor Cosby arrested Mr. Zinger, charged him with slander and kepthim in prison for 9 months. Mr. Zinger could not find a New York lawyer to defend him because ofthe governor' s power. But a leading lawyer from Philadelphia agreed to defend Mr. Zinger. He wasAndrew Hamilton, white-haired and almost 80 years old. The trial opened, the jury chosen and charges read. At that time, the law on slander saidthat jury could decide only if the person accused published in the newspaper named in the charges.The question of whether words published were true or not was to he decided by the judge. Mr.Zinger told the court he was innocent. Then the lawyer from Philadelphia rose, admitted that Mr.Zinger did publish the newspaper as charged. But Mr. Hamilton continued. The publishing of anewspaper does not make a person guilty of slander. He said that words themselves must be provedfalse or slanderous. Otherwise Mr. Zinger is innocent. The judge warned Mr. Hamilton that he, thejudge, would decide if the words were slanderous or not. Mr. Hamilton quickly turned to the juryand asked them to decide. He said that it was their right to decide whether the alleged slander wasin fact the truth. In his final statement to the jury, Mr. Hamilton said the question was much biggerthan the charges against Mr. Zinger. He said the question was liberty and right of people to opposedishonesty and tyranny by speaking and writing the truth. After a brief discussion the jury declaredthat Mr. Zinger was not guilty and cheers broke out in the courtroom. The decision established theprinciple of freedom of the press in the American Colonies. Mr. Hamilton was praised as a hero.Through the years the fame of Mr. Zinger trial and praise for Mr. Hamilton has spread throughoutthe country. And so it is believed that the expression "as smart as a Philadelphia lawyer" honorsthe man from Philadelphia who successfully defended the freedom of the press to print the truth.

单选题A:I wonder______your full name please. B: My full name is Jack Wiuiams.

单选题______ a certain doubt among the students as to the necessity of the work.

单选题Science textbooks and technical and professional journals are usually made up of several parts and contain various special features, many of which have a standard format. (31) usually contain a large number of these parts; journals and (32) contain many, but not all of them. Knowing where to look for information and (33) to expect in a book can greatly increase your ability to use all the information there. Explanations of and practice using some of these textbook parts and (34) are covered in these even numbered lessons. The features in textbooks are (35) into the following three categories. Front matter is the (36) -numeral paginated section at the front of most books. The text is the main body of the book. The (37) matter comprises the additional sections at the back of most books. (38) our discussion of these three sections will deal mainly with textbooks, the practice provided will greatly (39) your comprehension of scientific (40) as well.

单选题Passenger: Taxi! (A cab stops and he goes in.)Cab driver: ______.Passenger: King's Hotel on North Street.

单选题 Successful businesses tend to continue implementing the ideas that made them successful. But in a rapidly changing world, ideas often become obsolete overnight. What worked in the past won't necessarily work in the future. In order to thrive in the future, you must constantly create new ideas for every aspect of your business. In fact, you must continually generate new ideas just to keep your head above water. Businesses that aren't creative about their future may not survive. Although Bill Gates is the richest, most successful man on the planet, he did not anticipate the Internet. Now he's scrambling to catch up. If Bill Gates can miss a major aspect of his industry, it can happen to you in your industry. Your business needs to continually innovate and create its future. Gates is now constantly worried about the future of Microsoft. Here's what he said in a recent interview in U.S. News World Report: "Will we be replaced tomorrow? No. In a very short time frame, Microsoft is an incredibly strong company. But when you look to the two-to-three-year time frame, I don't think anyone can say with a straight face that any technology company has a guaranteed position. Not Intel, not Microsoft, not Compaq, not Dell, take any of your favorites. And that's totally honest." You may remember that in 1985 the Cabbage Patch Kids dolls were the best-selling toy on the market. But after Coleco Industries introduced their sensational line of dolls they became complacent and didn't create any new toys worth mentioning. As a result, Coleco went bankrupt in 1988. The most successful businesses survive in the long term because they constantly reassess their situations and reinvest themselves accordingly. The 3M Company has a 15% rule: employees are encouraged to spend 15% of their time developing new ideas on any project they desire; it's no surprise, then, that 3M has been around since 1902. Most businesses are not willing to tear apart last year's model of success and build a new one. Here's a familiar analogy to explain why they are lulled into complacency: imagine that your business is like a pot of lobsters; to cook lobsters, you put them into a pot of warm water and gradually turn up the heat; the lobsters don't realize they're being cooked because the process is so gradual. As a result, they become complacent and die without a struggle. However, if you throw a lobster into the pot when the water is boiling, it will desperately try to escape. This lobster is not lulled by a slowly changing environment. It realizes instantly that it's in a bad environment and takes immediate action to change its status.

单选题It is believed that high interest rates ______ people from borrowing money from the commercial banks. A. discourage B. decrease C. disgust D. disturb

单选题Secretary: Hello, ______ May I help you? Caller: Yes, this is jack Kordell. May I speak to Elaine Strong, please?

单选题Wilson, Hello. May I speak to Peter? Peter: ______ A. Sorry, the number is engaged. Will you hold? B. Yes, speaking. C. Hello. Who're you, please? D. Hello. Thank you for calling.