For thousands of years, man has enjoyed the taste of apples. Apples, which are a
题型：不详难度：来源：
There are various kinds of apples, but a very few make up the majority of those grown for sale. The three most common kinds grown in the United States are Delicious, golden Delicious, and McIntosh.
Apples are different in colour, size, and taste. The colour of the skin may be red, green, or yellow. They have various sizes, with Delicious apples being among the largest. The taste may be sweet or tart (酸的). Generally, sweet apples are eaten fresh while tart apples are used to make applesauce (苹果酱).
Apple trees may grow as tall as twelve metres. They do best in areas that have very cold winters. Although no fruit is yielded during the winter, this cold period is good for the tree.
小题1:It can be learned from the text that Delicious apples are _______________
| A．grown in France. | B．sold everywhere. |
| C．very big. | D．quite sweet. |
| A．the growth of apple trees. |
| B．producing large apples. |
| C．improving the taste of apples. |
| D．the increase of water in apples. |
| A．be large producers of apples. |
| B．be large producers of applesauce. |
| C．have the longest history in apple production. |
| D．have the coldest winter among apple producing countries. |
| A．improved. | B．increased. |
| C．produced. | D．sold. |
答案
小题1:C
小题2:A
小题3:A
小题4:C
解析
小题1:根据文中第三自然段中They have various sizes, with Delicious apples being among the largest. 一句可知Ｃ为本题的最佳答案。
小题2:文章结尾的一句话this cold period is good for the tree便是该题的正确答案，即Ａ。
小题3:本题只要抓住文中第一自然段Among the leading countries in apple production are China, France and the United States. 这句话，便可得出Ａ是正确答案。
小题4:根据该段落的中心大意可以判断Ｃ为最佳答案，即"尽管冬季不产苹果，但寒冷期有益于果树的生长。"
举一反三
In fact, a slight but significant change from purely technological solutions is already under way as scientists insist that answers to the world’s problems will not come from an attractive exhibition of electronics and machines. Instead, as they see it, solutions must develop from a better understanding of the humans that drive the system and from a fuller appreciation of the limits and potential(潜能) of the earth’s resources.
What this means is an increased emphasis on the life and earth sciences, on sociology, psychology, economics and even philosophy.
More and more of the best minds in science, particularly young researchers, are being drawn into these developing fields.
All this is not to say that technological creativity will not play a critical role in solving energy and food shortages, or that answers to environmental difficulties will not come from further advances in the same technologies that may have helped cause the problems.
Where the real challenge lies, in the view of the new generation of scientists, is in finding ways to produce goods and meet the world’s needs, using less of the raw materials that are becoming short.
小题1:Which of the following would the author probably agree with?
| A．The environment crisis will not be solved unless we stop using virgin（原始）materials. |
| B．In scientific research, a higher priority（优先）should be given to understanding all living systems. |
| C．Exploration of outer space will finally lead to an improvement on human living conditions. |
| D．U. S. high-technology companies are welcoming this new change in scientific research. |
| A．a growing number of Americans are doubtful about what high technology can do in solving the world’s problems. |
| B．Many scientists are beginning to believe that the better understanding of human beings will play a more decisive role in solving the world’s problems. |
| C．More and more young scientists are trying their best to find new ways to solve the world’s problems. |
| D．Technological creativity will still play a very important part in solving the world’s problems. |
| A．existing products be improved. |
| B．more complex machines and electronic equipment be designed. |
| C．ways be found to produce better goods using fewer raw materials. |
| D．any new invention and innovation be encouraged in technology |
| A．global food shortage | B．resources depletion（耗尽） |
| C．environmental pollution | D．all of the above |
| A．the development of present techniques cannot provide any answers to today’s problems. |
| B．an increasing number of young scientists are taking a great interest in biological and social sciences. |
| C．many scientists have come to understand the limits of natural resources. |
| D．many scientists argue that high technology is something but not everything. |
Westlake College in Virginia will start a laptop computer program that allows students to do schoolwork anywhere they want. Within five years, each of the 1500 students at the college will receive a laptop. The laptops are part of a ＄10 million computer program at Westlake, a 110-year-old college. The students with laptops will also have access to the Internet. In addition, they will be able to use e-mail to “speak” with their teachers, their classmates, and their families. however, the most important part of the laptop program is that students will be able to use computers without going to computer labs. They can work with it at home, in a fast-food restaurant or under the trees—anywhere at all!
Because of the many changes in computer technology, laptop use in higher education, such as colleges and universities, is workable. As laptops become more powerful, they become more similar to desktop computers. In addition, the portable computers can connect students to not only the Internet, but also libraries and other resources. State higher-education officials are studying how laptops can help students. State officials are also testing laptop programs at other universities, too.
At Westlake College, more than 60 percent of the staff use computers. The laptops will allow all teachers to use computers in their lessons. As one Westlake teacher said, “ Here we are in the middle of Virginia and we’re giving students a window on the world. They can see everything and do everything.”
小题1:The main purpose of the laptop program is to give each student a laptop to _______.
| A．use for their schoolwork | B．access the Internet |
| C．work at home | D．connect them to libraries |
| A．They don’t really talk. | B．They use the computer language. |
| C．Laptops have speakers. | D．None of the above reasons is correct. |
| A．All teachers use computers. | B．1500 students have laptops. |
| C．It is an old college in America. | D．Students there can do everything. |
| A．attend lectures on information technology |
| B．travel around the world |
| C．get information from around the world |
| D．have free laptops |
| A．The program is successful. | B．The program is not workable. |
| C．The program is too expensive. | D．We don’t know the result yet. |
Climate change experts from the Tyndall Climate Research Centre in Britain have said urgent action is needed to curb the rapid growth in air travel if the government is to meet its commitments on tackling global warming. This report from Stephen Evans:
Falling ticket prices and rising incomes are leading to rapid growth in global air travel. According to the British government, the number of British air passengers, for example, will more than double in the next quarter of a century. Increases of such an order would mean much more aviation fuel being burned and aviation fuel may be more harmful to the environment than other fuels because the resulting smoke is emitted at high altitudes.
A group of scientists at the environmental research group, the Tyndall Centre, says that if Britain is to meet its overall target for cutting damaging emissions, other uses of fuel like for heating homes or driving cars would have to be cut dramatically.
The British government wants the use of aviation fuel covered by international agreement on the environment. The difficulty for any individual government is that taxing fuel used at its own airports might push airlines to move their operations to competing airports in other countries.
小题1:Which statement is TRUE?
| A．A lot of people around the world have recently stopped flying because they have less money to spend and the price of plane tickets is going up |
| B．Half as many people as today will fly in the next 25 years. |
| C．Because more planes are suing more flight petrol and more pollution is being produced in the sky. |
| D．The British government would like all countries to agree not to tax airline fuel. |
| A．The increase of incomes and the decrease of ticket prices. |
| B．The growth of the number of good planes. |
| C．The falling of the oil price. |
| D．The encouragement of the governments. |
| A．the number of British air passengers will more than double in the next quarter of a century. |
| B．Britain will have to use less energy at home and on the roads to meet the goal of cutting pollution. |
| C．If airports are taxed for using fuel by each country’s government, then airlines might use other airports with cheaper fuel taxes. |
| D．Only the use of aviation fuel needs to be cut down to meet the overall target for cutting damaging emissions. |
| A．Falling Ticket Prices and Rising Incomes |
| B．Growth in Air Travel Harms Environment |
| C．Rapid Growth in Global Air Travel |
| D．More Flight Petrol, More smoke |
The size and location(分布) of the world’s deserts are always changing. Over millions of years, as climates change and mountains rise, new dry and wet areas develop. But within the last 100 yeas, deserts have been growing at a frightening speed. This is partly because of natural changes, but the greatest makers are humans.
Humans can make deserts, but humans can also prevent their growth. Algeria Mauritania is planting a similar wall around Nouakchott, the capital. Iran puts a thin covering of petroleum(石油) on sandy areas and plants trees. The oil keeps the water and small trees in the land, and men on motorcycles(摩托车) keep the sheep and goats away. The USSR and India are building long canals to bring water to desert areas.
小题1:In this passage, “needles” refers to _______.
| A．small, thin pieces of steel. |
| B．long, thin pieces of branches. |
| C．small pointed growth on the stem(茎) of a plant. |
| D．small, thin pieces of sticks. |
| A．The greatest desert makers are humans. |
| B．There aren’t any living things in the deserts. |
| C．Deserts have been growing quickly. |
| D．The size of the deserts is always changing. |
| A．the growth of deserts | B．the disappearance of desert plants |
| C．natural changes | D．congenital climate |
| A．Asian countries | B．American countries |
| C．European counties | D．African countries |
| A．The deserts of the world are always changing. |
| B．Man is to take measures to control the growth of the world’s deserts. |
| C．Deserts are lands of silence and space. |
| D．Deserts have grown at a fast pace in the past 10 years. |
In a proposal by two scientists, vehicle emissions (排放) would no longer contribute to global warming. The scientists, F. Jeffrey Martin and William L. Kubic Jr., are proposing a concept, which they have named Green Freedom, for removing carbon dioxide from the air and turning it back into gasoline.
The idea is simple. Air would be blown over a liquid solution (溶液) of potassium carbonate, which would absorb the carbon dioxide. The carbon dioxide would then be put to chemical reactions that would turn it into fuel: gasoline or jet fuel.
This process could change carbon dioxide from an unwanted, climate-changing pollutant into a vast resource for renewable fuels. The cycle — equal amounts of carbon dioxide produced and removed — would mean that cars, trucks and airplanes using the synthetic (合成的) fuels would no longer be contributing to global warming.
Although they have not yet built a synthetic fuel factory, or even a small model, the scientists say it is all based on existing technology. “Everything in the concept has been built, is operating or has a close cousin that is operating,” Dr. Martin said.
The Los Alamos proposal does not go against any laws of physics, and other scientists who have independently suggested similar ideas. Dr. Martin said he and Dr. Kubic had worked out their concept in more detail than previous proposals.
There is, however, a major fact that explains why no one has built a carbon-dioxide-to-gasoline factory: it requires a great deal of energy.
According to their analysis, their concept, which would cost about $5 billion to build, could produce gasoline at an operating cost of $1.40 a gallon and would turn economically practical when the price at the pump hits $4.60 a gallon.
Other scientists said the Los Alamos proposal perhaps looked promising but could not evaluate it fully because the details had not been published.
“It’s definitely worth pursuing,” said Martin I. Hoffert, a professor of physics at New York University. “It’s not that new an idea. It has a couple of pieces to it that are interesting.”
67. What is the idea of the project being discussed in the article?
A. Recycling the carbon dioxide from cars back into gasoline.
B. Create a new gasoline that gives off very little carbon dioxide.
C. Using a special liquid solution to absorb carbon dioxide from cars.
D. Build synthetic fuel factories to remove carbon dioxide from the air.
68. What’s the name given to the new concept?
A. Synthetic Fuel. B. Green Freedom.
C. Renewable Fuel. D. Carbon-dioxide-to-gasoline Factory.
69. Which of the following is NOT one of the benefits of this new concept as suggested in the article?
A. Reduction of global warming. B. Cheaper gasoline for cars.
C. Longer life of cars. C. Less pollution of the atmosphere.
70. What’s the biggest problem in realizing the concept according to the report?
A. Shortage of starting funds. B. Immature technology involved.
C. All previous similar attempts have failed.
D. The use of too much energy in running the fuel factory.
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