单选题In the Chinese household, grandparents and other relatives play ______ roles in raising children.

单选题Every modern government, liberal or otherwise, has a specific position in the field of ideas; its stability is {{U}}vulnerable{{/U}} to critics in proportion to their ability and persuasiveness.

单选题There are a great many books, web sites, and training 24 today more or less dedicated to the idea that being bored is a major sin, for which the only 25 is to find ways to be busy and productive every waking moment. People who follow this 26 are constantly on-the-go—and feelings of boredom quickly smothered with yet more activities. At work, at home, at play, each 27 must be filled with things to ward off the slightest possibility of being bored. As a society, we're over-stimulated to the point of mania, like hyper-excited children in those few moments at a party before it all goes wrong and everyone starts crying. I suspect the rise in ADHD isn't only 28 to eating strange chemicals in the diet; we're training ourselves to require continual distraction, reducing our attention-span to less than a few seconds before we're bored again. It used to be only teenagers who 29 . 'I'm so bored!' Now almost everyone acts as if not having something truly exciting to do every moment is either the first sign of senility or—much wore—positive proof that they, and their 30 are gone, past it, over the hill, on the way towards oblivion. Yet boredom is, in reality, crucial to any ability to be truly productive, let 31 effective. If you're fiat-out busy and engaged all the time, you may feel important, but the reality is 32 . It's those who are constantly 33 with activities that are most likely to be headed towards a nasty let-down. A. alone B. careers C. courses D. cure E. different F. dissatisfied G. distracted H. due I. felt J. idea K. moment L. sighed M. thanks N. time O. way

单选题 The dawn of the oil age was fairly recent. Although the stuff was used to waterproof boats in the Middle East 6,000 years ago, extracting it in earnest began only in 1859 after an oil strike in Pennsylvania. It was used to make kerosene, the main fuel for artificial lighting after overfishing led to a shortage of whale blubber. Other liquids produced in the refining process, too unstable or smoky for lamplight, were burned or dumped. But the unwanted petrol and diesel did not go to waste for long, thanks to the development of the internal-combustion engine a few years later. Since then demand for oil has, with a couple of {{U}}blips{{/U}} in the 1970s and 1980s, risen steadily alongside ever-increasing travel by car, plane and ship. Three-fifths of it ends up in fuel tanks. With billions of Chinese and Indians growing richer and itching to get behind the wheel of a car, the big oil companies, the International Energy Agency (IEA) and America's Energy Information Administration all predict that demand will keep on rising. We believe that they are wrong, and that oil is close to a peak. This is not the "peak oil" widely discussed several years ago, when several theorists, who have since gone strangely quiet, reckoned that supply would flatten and then fall. We believe that demand, not supply, could decline. In the rich world oil demand has already peaked: it has fallen since 2005. Even allowing for all those new drivers in Beijing and Delhi, two revolutions in technology will dampen the world's thirst for the black stuff. The first revolution was led by a man from Texas who has just died. George Mitchell championed "fracking" as a way to release huge supplies of "unconventional" gas from shale (a smooth soft rock) beds. This, along with vast new discoveries of conventional gas, has recently helped increase the world's reserves from 50 to 200 years. The other great change is in automotive technology. Rapid advances in engine and vehicle design also threaten oil's dominance. Foremost is the efficiency of the internal-combustion engine itself. Petrol and diesel engines are becoming ever more frugal. Not surprisingly, the oil "supermajors" and the IEA disagree. They point out that most of the emerging world has a long way to go before it owns as many cars, or drives as many miles per head, as America. But it would be foolish to predict from the rich world's past to booming Asia's future. The sorts of environmental policies that are reducing the thirst for fuel in Europe and America by imposing ever-tougher fuel-efficiency standards on vehicles are also being adopted in the emerging economies.

单选题 It is necessary that something urgent ______ to combat smuggling.

单选题Waiter: ______. Customer: A peanut butter pancake, together with the meal, please.

单选题Like some foreigners, I ask a lot of questions, some of which are insultingly silly. But everyone I ______ has answered those questions with patience and honesty.

单选题The computer can ______ stored information in a matter of minutes.

单选题A person' s psychological______ has much to do with his or her happiness in life.

单选题Caller: Hello. I'm ringing about the flat advertised in today's STAR.______?Mrs. Green: Yes, it is. Two or three people have rung up about it, but nobody's been to see it yet.

单选题The reason why Washington didn't visit France was probably that he ______.

单选题The department chairman______with thanks the assistance of all the faculty members for getting the celebration ready in a short time.

单选题Being afraid of the enemy's attack, he ______ motionless in the grass for half an hour.

单选题The girl ______ when she couldn't answer the question in the presence of all her classmates.

单选题下面的短文后列出了10个句子，请根据短文的内容对每个句子作出判断：如果该句提供的是正确信息，选择A；如果该句提供的是错误信息，选择B；如果该句的信息文中没有提及，选择C，并将所选答案的代码（指A、B或C）填在答题纸的相应位置上。Being "Cool" in Middle School　　A new study shows that gentle and quiet kids in middle

单选题The football players need total concentration during ______.

单选题A person's calorie requirements vary ______ his life.

单选题This book costs ______ that one.

单选题As a law graduate, he ought to know that eyewitness______ is notoriously unreliable, especially so when the witness is not an expert.

单选题 The term 'joint international business venture', joint venture for short, has come to mean many things to many people. It sometimes is taken to mean any joint relationship between one or more foreign firms and one or more local firms. Such a broad definition is excluded here. Joint venture will be taken to mean joint ownership of an operation in which at least one of the partners is foreign based. Joint ventures can take many forms. A foreign firm may take a majority share, a minority share, or an equal share in ownership. While it is not necessary to have financial control or to have operating control, some firms refuse to use the joint venture form if it is not possible to have a majority position in ownership. There are firms that have few qualms (担忧) about holding minority position, however, so long as they can have operating control. They achieve this through technical-aid, management, or supply contracts. It should be recognized that maintaining operating control is sometimes difficult if one does not have financial control too. Objectives of the participants may diverge (相异); when they do, financial control becomes important. Management may wish to reinvest earnings while the majority of the board may wish earnings distributed as dividends. Unless policy issues of this kind can be settled peacefully, lack of financial control can prove to be very unsatisfactory, if not fatal. Many joint ventures emerge as matters of necessity: that is, no single firm is willing to assume the risks entailed, while a consortium (联盟) of firms is. Large, capital-intensive, long-lived investments are natural candidates for the joint venture. Exploitation of resource deposits often is done by a consortium of several petroleum or mining firms. Roles are parceled out even though each phase of the operation is owned jointly. One firm does the actual mining, another provides transportation, and still another does the refining and extraction. There is a wide variety of combinations. Also the joint venture can pose problems, especially if it is an enforced marriage of partners. For many ventures in small countries, it is difficult to find a suitable local partner, that is, one with sufficient capital and know how to be able to contribute to the partnership. In some developing countries, a small handful of families control the entire locally-owned part of the industrial structure. Under these circumstances, a joint venture merely insulates them further from independent, foreign-owned plants that would compete against them. For this and other reasons, the only suitable partner may end up being the government itself. Most multinational firms, however, shy away from such arrangements where possible.