单选题The arrival of the traffic-free shopping street made many ____ lost their business.

单选题It took me exactly a week to complete the work.

单选题He is charming; nevertheless, I don't quite trust him. A. however B. therefore C. despite D. afterwards

单选题So far the project has been carried out smoothly .

单选题Winners and Losers Why are the biggest winners in the past decade of trade globalization mostly in South and East Asia, whereas the biggest losers are mostly in the former Soviet bloc (集团) and Sub-Saharan Africa? History is a partial guide: East Asia has a long trading tradition, lately reinvigorated (给以新的活力) by the Chinese adoption of market economics. The Soviet Union, on the other hand, was sheltered from free-market forces for more than 70 years. In Africa, some countries are disadvantaged because of inadequate infrastructure (基础结构); Many countries have little to trade but commodities, the prices of which have fallen in recent years. In some regions, certain countries have suffered by adopting misguided policies, often under pressure from International Monetary Fund. First among these is Russia, which in the early 1990s tried to embrace capitalism before first building the institutions that make capitalism work, such as an independent bank system, a system of business law, and all adequate method for collecting taxes. Encouraged by the IMF, the World Bank and the US Department of the Treasury, President Boris Yeltsin"s regime privatized the state- owned industrial sector, creating a class of oligarchs (寡头政治集团成员), who knowing how unstable conditions were at home, sent their money abroad instead of investing it at home. In contrast, China, the biggest winner from globalization, did not follow the IMF formula. Of the former states of the Soviet bloc, only a few, notably Poland and Hungary, managed to grow, which they did by ignoring IMF advice and adopting expansionary plans, including spending more than they collected in taxes. Botswana and Uganda are also success stories: despite their disadvantages, their countries achieved vigorous growth by creating stable civil societies, liberalizing trade and implementing reforms that ran counter to IMF prescriptions.

单选题{{B}}第二篇{{/B}} {{B}}Driven to Distraction{{/B}} Joe Coyne slides into the driver's seat, stars up the car and heads to town. The empty stretch of interstate gives way to urban congestion, and Coyne hits the brake as a pedestrian suddenly crosses the street in front of him. But even if he hadn't stopped in time, the woman would have been safe. She isn't real. Neither is the town. And Coyne isn't really driving. Coyne is demonstrating a computerized driving simulator that is helping researchers at Old Dominion University (ODU) examine how in-vehicle guidance systems affect the person behind the wheel. The researchers want to know if such systems, which give audible or written directions, are too distracting—or whether any distractions are offset by the benefits drivers get from having help finding their way in unfamiliar locations. "We're looking at the performance and mental workload of drivers," said Caryl Baldwin, the assistant psychology professor leading the research, which involves measuring drives' reaction time and brain activity as they respond to auditory and visual cues. The researchers just completed a study of the mental workload involved in driving through different kinds of environments and heavy vs. light traffic. Preliminary results show that as people "get into more challenging driving situations, they don't have any extra mental energy to respond to something else in the environment," Baldwin said. But the tradeoffs could be worth it, she said. The next step is to test different ways of giving drivers navigational information and how those methods change the drivers' mental workload. "Is it best if they see a picture '" that shows their position, a map kind of display?" Baldwin said. "Is it best if they hear it?" Navigational systems now on the market give point-by-point directions that follow a prescribed route. "They're very unforgiving," Baldwin said. "If you miss a tarn, they can almost seem to get angry." That style of directions also can be frustrating for people who prefer more general instructions. But such broad directions can confuse drivers who prefer route directions, Baldwin said. Perhaps manufacturers should allow drivers to choose the style of directions they want, or modify systems to present some information in a way that makes sense for people who prefer the survey style, she said. Interestingly, other research has shown that about 60 per cent of men prefer the survey style,while 60 per cent women prefer the route style, Baldwin said. This explains the classic little thing of why men don't like to stop and ask for directions and women do, Baldwin added.

单选题He is {{U}}but{{/U}} a child.

单选题The decoration of the palace amazes the visitors with its gorgeous furniture.

单选题Some adult dogs may weigh as much as 200 pounds, but most weigh between 20 and 50 pounds.A. matureB. femaleC. specialD. wild

单选题I found many faults in spelling and grammar in this composition.A. shortcomingsB. weaknessC. mistakeD. misdeed

单选题If the weatherman has predicted accurately, tomorrow will be a perfect day for our picnic. A．astutely B．correctly C．carefully D．acutely

单选题New Product Will Save Lives Drinking water that looks clean may still contain bugs (虫子), which can cause illness. A small company called Genera Technologies has produced a testing method in three stages, which shows whether water is safe. The new test shows if water needs chemicals added to it, to destroy anything harmful. It was invented by scientist Dr. Adrian Patton, who started Genera five years ago. He and his employees have developed the test together with a British water company. Andy Headland, Genera's marketing director, recently presented the test at a conference in the USA and forecasted good American sales for it. Genera has already sold 11 of its tests at $42,500 a time in the UK and has a further four on order. It expects to sell another 25 tests before the end of March. The company says it is the only test in the UK to be approved by the government. Genera was formed five years ago and until October last year had only five employees; it now employs 14. Mr. Headland believes that the company should make around $19 million by the end of the year in the UK alone.

单选题Cattle graze on the dry uplands of the island of Hawaii.

单选题On the fourth of July 1776 the Declaration of Independence was adopted by the Continental Congress.

单选题While we don't agree, we continue to be friends. A. Because B. Where C. Although D. Whatever

单选题"Salty" Rice Plant Boosts Harvests British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more. Tim Flowers and Tony Yeo, from Sussex University's School of Biological Sciences, have spent several years researching how crops, such as rice, could be made to grow in water that has become salty. The pair have recently begun a three-year programme, funded by the Biotechnology and Biological Sciences Research Council, to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops, starting with rice. It is estimated that each year more than 10m hectares (公顷) of agricultural land are lost because salt gets into the soil and stunts (妨碍生长) plants. The problem is caused by several factors. In the tropics, mangroves (红树林) that create swamps (沼泽) and traditionally formed barriers to sea water have been cut down. In the Mediterranean, a series of droughts have caused the water table to drop, allowing sea water to seep (渗透) in. In Latin America, irrigation often causes problems when water is evaporated (蒸发) by the heat, leaving salt deposits behind. Excess salt then enters the plants and prevents them functioning normally. Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive. To overcome these problems, Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants' growth. They have started to breed these characteristics into a new rice crop, but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use. Once the characteristics for surviving salty soil are known, Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants. Land that has been abandoned to nature will then be able to bloom again, providing much needed food in the poorer countries of the world.

单选题Unfortunately, the technology employed to send men to the moon is not {{U}}relevant{{/U}} to the solution of the problems of the inner city.

单选题Which of the following statements about the survey is true?

单选题The invention of the assembly line enabled Henry Ford

单选题Attitudes to mental illness have shifted in recent years.