单选题He has won the first place, __ is clear from the expressions on his face.

单选题With all the things she needed ~ she would leave the market for the streets of the town to spend another hour.

单选题There is one suggestion that the footsteps of crowds walking the streets in major cities could __energy.

单选题A complete refining installation must include waste __ and water-treating equipment.

单选题More than two thousands __ work in this refinery.

单选题Inflation is the first problem that the new government will have to.

单选题In a given month, Friday is the 21 st day of the month. What day of the week was the 5th of the month?

单选题Scientists predict that the world’s known oil resources will _____ early in the next century.

单选题They ______ their knowledge in the exploding world of ideas.

单选题Many students find that if they try to speak fast, they make more mistakes. So, how do we balance __ and fluency in spoken English?

单选题Questions 49 to 52 are based on the following passage: 　　From National to International 　　Do you have what it takes? 　　It's our job to help you make that leap. 　　The world is waiting. Are you ready? 　　Is your small business ready to make that next step and expand abroad? A recent survey estimates that up to 40% of all small businesses are intending to do just that. Is your business making up this 40%? Making that move and expanding into the international market requires a different approach fi.om the one you're used to. On a national level, it is often enough to sell the right products at the right price. Failure to adopt a different sales approach on the international market can often lead to failure as international customers expect different things. This is where we come in. The right knowledge and the right preparation can make all the difference on the international level. 　　The main aspects of the program we offer are: 　　1. How can weaknesses be identified and reduced? 　　2. How are cultural differences handled in the business world? 　　3. In-depth knowledge of district law, how does it help? 　　4. How can we target the right kind of international customers and how can we finance this bigger, more complicated international operation? 　　5. What can be done to create a foolproof business plan? 　　Cost of the course: 　　$2,000 per person. If 4 or more people apply from the same company, then discounts can be arranged. Course times can be changed to accommodate your employees' schedule. This course is fully accredited by some top level colleges and universities.

单选题What does Ms. Answers say about the subway?

单选题_______ hearing is really produced in all animals by the effect of pressure is not definitely known by scientists.

单选题Let us start a long march together on different roads __ the same goal.

B级： The diffusion of knowledge is the dominant trend of our time. What was happening in Britain duringthe lndustriai Revolution was not an isolated phenomenon. A succession of visitors to Britain would go backfo their countries to report on the technological innovations they saw there. Sometimes societies were able tolearn extremely fast, as in the United States. Others, like Italy, benefited from starting kate, leapfrogging thelong-drawn out process that Britain went through. This diffusion of knowledge accelerated dramatically in recent years. Over the last 30 years we havewatched countries like Japan, Singapore and now China grow at a pace that is four times that of Britain at thepeak of the Industrial Revolution. They have been able to do this because of their energies, of course, butalso because they cleverly adopted certain ideas about development that had worked in the West--relativelyfree markets, open trade, a focus on science and technology, among them. And this shift is happening allaround the world. From Thailand to South Afl-ica, from Brazil to Mexico, countries are far better managedecommfically than they have ever been.

The chemical industry depends very heavily on petroleum and natural gas as sources of raw materials. It is likely that in excess of 80% of the literally thousands of different basic organic chemicals employed today are derived from these sources. The petrochemical industry has grown with the petroleum industry. As is the case with the latest trends in changing crude oil types, it must also evolve to meet changing technological and humanitarian needs. The manufacture of chemicals from petroleum and natural gas constituents is an excellent example of the conversion of such materials to more valuable products. The individual chemicals made from petroleum and natural gas numerous and include industrial chemicals, household chemicals and paints, as well as intermediates for the manufacture of products, such as synthetic rubber and plastics. The processing of petroleum hydrocarbon to yield materials that are, essentially, the building blocks of other chemicals industries, is now very extensive. The classification of materials such as petrochemicals is used to indicate the source of the chemical compounds, but it should be remembered that many common petrochemicals can be made form other sources, and the terminology is therefore a matter of source identification., Petrochemicals are generally chemical compounds derived from petroleum either by direct manufacture or by indirect manufacture as by-products from the variety of processes that are used during the refining of petroleum. Gasoline, fuel oils, lubricating oils, waxes, asphalts, and the like are excluded from the definition of petrochemicals, since they are not, in the true sense, chemical compounds but are in fact intimate mixtures of hydrocarbons. B级 The chemical industry depends very heavily on petroleum and natural gas as sources of raw materials. It is likely that in excess of 80% of the literally thousands of different basic organic chemicals employed today are derived from these sources. The petrochemical industry has grown with the petroleum industry. As is the case with the latest trends in changing crude oil types, it must also evolve to meet changing technological and humanitarian needs. The manufacture of chemicals from petroleum and natural gas constituents is an excellent example of the conversion of such materials to more valuable products. The individual chemicals made from petroleum and natural gas numerous and include industrial chemicals, household chemicals and paints, as well as intermediates for the manufacture of products, such as synthetic rubber and plastics. The processing of petroleum hydrocarbon to yield materials that are, essentially, the building blocks of other chemicals industries, is now very extensive.

A 级 China is about to adopt its llth five-year plan, setting the stage for the continuation of probablythe most remarkable economic transformation in recent years, while improving the well-being ofalmost a quarter of the world's population. While much of the rest of the developing world has been directed at a common quest for higherGDP, China has once again made clear that it seeks sustainable increases in the people's happiness. China realizes that it has entered a phase of economic growth that is imposing enormousdemands on the environment. Unless them is a change in course, living standards will eventually becompromised. That is why the new five-year plan places great emphasis on the environment. China recognizes, too, that what separates less developed from more developedcountries is not only a gap in resources, but also a gap in science and technology. So it has laid outnew plans not only to reduce that gap, but to create a basis for independent innovation. China's role in the world and the world's economy has changed, and the plan reflects this, too. Itsfuture economical model will have to be based more on domestic demand than on exports, whichwill require increases in consumption. Strengthening social security and public education willsimultaneously increase citizens' sense of well-being, and promote current consumption. With such a clear vision of the future, the challenge will be implementation. Market econonfiesare not selLregulating. They cannot simply be left on autopilot, especially if one wants to ensurethat their benefits are shared widely. But managing a market economy is a difficult task. It is abalancing act that must constantly respond to economic changes. China's llth five-year planprovides a roadmap for that response.

Supplying energy in 1970 required the harvesting, processing and combustion of some three billion metric tons of coal, some 17 billion barrels of oil, more than a trillion cubic meters of natural gas and perhaps two billion cubic meters of fuel wood. It entailed the use of dirty coal as well as clean; undersea oil as well as terrestrial; deep gas as well as shallow; mediocre hydroelectric sites as well as good ones; and deforestation as well as sustainable fuel wood harvesting. Except for the huge pool of oil underlying the Middle East, the cheapest oil and gas are already gone. Some scientists believe there is a lot more to be found. But even if a few more giant oil fields are discovered, they will make little difference, against consumption on today’s scale. Oil and gas will have to come increasingly as imports from countries with very unstable economic conditions. There are a variety of other energy resources that are more abundant than oil and gas. Coal, solar energy, wind energy, and fission and fusion fuels are the most important ones. But they all require elaborate and expensive transformation into electricity or liquid fuels in order to meet society’s need None has very good prospects for delivering large quantities of electricity at costs comparable to those of the cheap coal-fired and hydropower plants of the 1960’s. It appears, then, that expensive energy is a permanent condition, even without allowing for its environmental costs. 71~ Except for the huge pool of oil underlying the Middle East,/the cheapest oil and gas arc alrcaci5 gone. Some scientists believe there is a lot more to be found. But even if a few more giant oil fields are discovered, they will make little difference against consumption on today’s scale. Oil and gas will have to come increasingly as imports from countries with very unstable economic conditions. There are a variety of other energy resources that are more abundant than oil and gas. Coal, solar energy, wind energy, and fission and fusion fuels are the most important ones. But they all require elaborate and expensive transformation into electricity or liquid fuels in order to meet society’s need. They may never be capable of delivering large quantities of electricity at costs comparable to those of the cheap coal-fired and hydropower plants of the 1960’s. It appears, then, that expensive energy is a permanent condition, even without allowing for its environmental costs.

B级 The U.S. and Iran don't agree on much these days. But in their conflict over Iran's nuclear program, both seem willing to use oil as a political weapon. The U.S. believes that sanctions on Iran's energy exports might force Tehran to renounce its uranium-enrichment ambitions. Iran hopes its threats to withhold some of those exports will persuade the international community to back off. Some analysts argue that it is less dangerous for the U.S. to simply accept a nuclear Iran than to risk the damage that sharp Iranian production cuts---or Iranian retaliation against a U.S. or Israeli military strike--might do to U.S. interests. After all, Iran is unlikely to ever fire a nuclear missile, which could be expected to respond in kind. But the Bush administration fears that Iran might sell nuclear material to other states, and possibly to terrorist groups. It's also concerned that other Middle Eastern countries (Saudi Arabia, in particular) might feel compelled to go nuclear.

A级: The diffusion of knowledge is the dominant trend of our time. What was happening in Britain duringthe Industrial Revolution was not an isolated phenomenon. A succession of visitors to Britain would go backto their countries to report on the technological innovations they saw there. Sometimes societies were able tolearn extremely fast, as in the United States. Others, like Italy, benefited from starting late, leapfrogging thelong-drawn-out process that Britain went through. This diffusion of knowledge accelerated dramatically in recent years. Over the last 30 years we havewatched countries like Japan, Singapore and now China grow at a pace that is four times that of Britain at tilepeak of the Industrial Revolution. They have been able to do this because of their energies, of course, butalso because they cleverly adopted certain ideas about development that had worked in the Westrelatively free markets, open trade, a focus on science and technology, among them. And this shift ishappening all around the world. From Thailand to South Africa, from Brazil to Mexico, countries are farbetter managed economically than they have ever been. We are sometimes reluctant to believe in progress. But the evidence is unmistakable. The managementof major economies has changed greatly in the last few years. Careful monetary policy has tempered theboom-and-bust economic cycles of the industrial world, producing milder recessions and fewer shocks.Every day one reads of a new study compm-ing nations in everything from Intemet penelration to interestrates. All these studies and lists are symbols of a learning process that is accelerating, reinforcing the lessonsof success and failure.