How long do you want to live? How many years might be added to a life? Do you want to live another 100 years or more? Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.（寿命）
“I think we are knocking at the door of immortality(永生) , " said Michael Zey, a Montclair State University business professor and author of two books on the future. "I think by 2075 we will see it and that's a conservative estimate(保守的估计)."
At the conference in San Francisco, Donald Louria, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology(纳米技术) make it likely that humans will live in the future beyond what has been possible in the past. "There is a great push so that people can live from 120 to 180 years," he said. "Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years.
However, many scientists who research into ageing are doubtful about it and say the human body is just not designed to last past about 120 years. Even with healthier lifestyles and less disease, they say the failure of the brain and organs will finally lead all humans to death.
Scientists also differ on what kind of life the super aged might live. "It remains to be seen if you pass 120,you know, could you be healthy enough to have good quality of life?" said Leonard Poon, director of the University of Georgia Gerontology Centre. "At present people who could get to that point are not in good health at all."
【小题1】By saying "we are knocking at the door of immortality", Michael Zey means ______.
| A．they have got some ideas about living forever |
| B．they are sure to find the truth about long living |
| C．they believe that there is no limit of living |
| D．they are able to make people live past the present life span |
| A．people can live from 120 to 180 |
| B．it is possible for humans to live longer in the future |
| C．the human body is designed to last past about 120 years |
| D．it is still doubtful how long humans can live |
| A．using genes as well as nanotechnology |
| B．the idea of living beyond the present life span |
| C．a great push |
| D．the conservative estimate |
| A．No Limit for Human Life | B．Science, Technology and Long Living |
| C．Living Longer or Not | D．Healthy Lifestyle and Long Living |
【小题1】A
【小题2】B
【小题3】B
【小题4】C
解析试题分析：文章介绍随着科技的发展人类可能比现在更长寿，但是有人却是持有怀疑态度的，即使可以长寿，健康状况也是很差的。
【小题1】猜义题。根据短文第一段的内容Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.（寿命）可判断出 Michael Zey 的意思是“他们已经获得了使人们永生的主意”选A。
【小题2】细节推断题。第三段“Some have suggested that there is no limit and that peoplecould live to 200 or 300 or 500 years”说明 Donald Louria 认为将来人们的寿命会更长。选B
【小题3】指代题：根据第三段的最后句子"Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years和根据第四段的内容可判断出 it 所指的是“人们将来的寿命将会超过现在人的寿命”的观点。选B
【小题4】标题确定题：文章就人类是否能比现在过的长，阐述了不同人的观点，有人持乐观的态度，但是有人却是怀疑的，所以Living Longer or Not 是最好的标题。选C
考点：考查科普类短文
全优考典单元检测卷及归类总复习系列答案科目：高中英语 来源： 题型：阅读理解
Scientists know of more than 1,000 volcanoes on the surface of Venus, Earth’s “sister” planet. A big question has been: Are they still active? The scientists say yes.
Their evidence for recent volcanic activity on Venus comes from a lava(熔岩) flow in the planet’s northern hemisphere. The flow is hotter than the rocks around, which means the lava might still be cooling off. “The flow we studied seems to be very young---it is still warm inside,” Nataliya Bondarenko said.
Venus is a difficult planet to study from Earth because it is surrounded by thick clouds. Telescopes on Earth can’t see through these clouds, so the best information about Venus comes from spacecraft orbiting it.
Bondarenko and her colleagues studied the lava flow using data from NASA’s Magellan mission. That spacecraft spent four years in orbit around Venus and used radar to make a map of 98 percent of the planet’s surface. On October 11th, 1994, the mission ended, and the spacecraft plunged (跌落) through Venus’ heavy cloud cover and crashed onto the planet below.
While in orbit, the Magellan craft sent microwaves, which can go through Venus’ clouds, to the surface. Microwaves are invisible and can be as long as three feet. These waves are a kind of energy, like light. And like light, they bounce off surfaces. The way the waves bounced off the Venus’ surface and back to the craft supplied information that the scientists used to estimate the temperature of various parts of the planet’s surface. Bondarenko’s team found that the lava flow was hotter than its surroundings---which may mean the lava flow is in the process of cooling.
The scientists say the lava flow can’t be very old because if it were, it would have cooled off enough that Magellan wouldn’t have noticed the difference in microwaves. She adds that the flow appears in a 1978 view of the surface that a craft called the Pioneer Venus Orbiter captured.
【小题1】What happened to Magellan in the end?
| A．It was floating in space forever. |
| B．It flew into heavy clouds. |
| C．It returned to the Earth. |
| D．It fell onto Venus. |
| A．By looking at it with a powerful telescope. |
| B．By measuring the thickness of clouds over Venus. |
| C．By calculating the microwave bouncing off Venus’s surface. |
| D．By orbiting Venus for 4 years in a spacecraft. |
| A．Warm lava on Venus |
| B．More volcanic eruptions on Venus |
| C．Venus is just like a big active volcano |
| D．Lava flows are first found on Venus |
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科目：高中英语 来源： 题型：阅读理解
In all the world's cultures, people sing, play instruments, and celebrate with music． It plays such an important role in our lives that all fields focus on its study, including one looking at the biology of music． Experts are finding that because of the way our brains process music, learning to play an instrument or just listening to music can have a wide range of benefits．
Music education has received a lot of attention． Learning to play an instrument can help children improve math, science, and language skills． One study in Canada tracked children's IQ scores for nine months, discovering that children who studied music had the biggest test score improvements． The secret may lie in the way reading music and playing notes uses several areas of the brain, increasing our ability to learn school subjects． For example, reading notes improves spatial （空间的） reasoning skills, which are helpful in solving math problems like fractions（分数）．
Music is also used for medical purposes, such as the treatment of diseases which affect memory． The secret lies in the way the brain processes music． One area near the forehead, the medial prefrontal cortex, connects music with memories stored in two other areas: the amygdale and hippocampus． That's why an old song can remind you of something that happened years ago． For patients suffering from diseases like Alzheimer's, listening to music can help unlock buried memories by strengthening musical pathways to memories．
With the evidence of music's benefits pouring in, it's no wonder some countries make music study a part of their education systems． People are recognizing that more than just a form of entertainment, music is also great for the brain．
【小题1】Scientists are studying music because _______．
| A．music can be used for medical treatments |
| B．music plays a very important role in our lives |
| C．our brains can possess music in different ways |
| D．music education has received a lot of attention |
| A．Those who already had high IQs． |
| B．Those who had always played music． |
| C．Those who could not play any instrument． |
| D．Those who studied music for a period of time． |
| A．Spatial reasoning． | B．Alzheimer's． |
| C．The amygdale and hippocampus． | D．The medial prefrontal cortex． |
| A．Music and health | B．Music and the mind |
| C．Music and education | D．Music and instruments |
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科目：高中英语 来源： 题型：阅读理解
All around the world, shoppers flock to Wal-Mart to buy everything. In Texas, they come for another reason: to see the wind turbine（涡轮机）, which supplies 5% of the store’s electricity. It along with other facilities, such as exterior walls coated with heat-reflective paint, makes this Wal-Mart a green giant.
The laws of economics suggest that Wal-Mart, with 5, 200 stores worldwide, influences everything including the price of all kinds of goods. It throws its weight behind environmental responsibility, and the impact could be amazing. “One little change in product packaging could save 1, 500 trees,” says Wal-Mart CEO Lee Scott．“If everybody saves 1, 500 trees or 50 barrels of oil, at the end of the day you have made a huge difference.”
Scott wants Wal-Mart to do its part too. He has promised to cut the existing greenhouse-gas emissions（排放）over the next few years and promised to construct new stores that are more efficient. He wants Wal-Mart’s fleet of more than 7, 000 trucks to get twice as many miles per gallon by 2015. Factories that show Wal-Mart they’re cutting air pollution will get preferential treatment in the supply chain. Wal-Mart says it’s working with consumer-product manufacturers to reduce their packaging and will reward them if they do so.
Some people may doubt it is a bid to attract attention from Wal-Mart’s controversial labor and health-insurance practices. But it’s not just window dressing, because Wal-Mart sees profits in going green. Scott says, “This is a business philosophy, not a social philosophy. We don’t go where we don’t think there’s a great interest in change.”
Like Bill Gates, who started his charitable foundation, Scott happens to be promoting Wal-Mart’s image at a time when his company’s reputation is declining. He acknowledges that he launched the plan partly to shield （保护）Wal-Mart from bad press about its contribution to global warming. “By doing what we’re doing today, we avoid the headline risks that are going to come for people who did not do anything,” he says. “At some point businesses will be held responsible for the action they take.” Meanwhile, should Wal-Mart succeed in shrinking its environmental footprint and lowering prices for green products, both the planet and the company will profit.
【小题1】 We can infer from the passage that ______.
| A．Lee Scott is Wal-Mart’s CEO |
| B．there are 5, 200 stores in the world |
| C．Wal-Mart has a great influence on the world market |
| D．Wal-Mart has more than 7, 000 trucks all over the world |
| A．Reduce air pollution in its present stores. |
| B．Give favorable treatment to its consumers. |
| C．Ask the factories to reduce their packaging. |
| D．Demand the fleet of trucks to use more fuel than before. |
| A．Provide the background of the green plan. |
| B．Stress the purpose of Wal-Mart’s green plan. |
| C．Present the risk that Wal-Mart is facing nowadays. |
| D．Analyze the similarity between Bill Gates and Scott. |
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科目：高中英语 来源： 题型：阅读理解
Plants are flowering faster than scientists predict in reaction to climate change, which could have long damaging effects on food chains and ecosystems.
“Global warming is having a great effect on hundreds of plant and animal species around the world, changing some living patterns.” scientists say.
Increased carbon dioxide (CO2) in the air from burning coal and oil can have an effect on how plants produce oxygen, while higher temperatures and changeable rainfall patterns can change their patterns of growth.
“Predicting species’ reaction to climate change is a major challenge in ecology,” said the researchers of several U.S. Universities. They said plants had been the key object of study because their reaction to climate change could have an effect on food chains and ecosystem services.
The study, published on the Nature website, uses the findings from plant life cycle studies and experiments across four continents and 1,634 species. It found that some experiments had underestimated the speed of flowering by 8.5 times and leafing by 4 times.
“Across all species, the experiments underestimated the speed of the advance—for both leafing and flowering—that results from temperature increases,” the study said.
“The design of future experiments may need to be improved to better predict how plants will react to climate change,” it said.
Plants are necessary for life on the Earth. They are the base of the food chain, using photosynthesis (光合作用) to produce sugar from carbon dioxide and water. They let out oxygen which is needed by nearly every organism on the planet.
Scientists believe the world’s average temperature has risen by about 0.8 ℃ since 1900, and nearly 0.2 ℃ every ten years since 1979.
So far, efforts to cut emissions of planet-warming greenhouse gases are not seen as enough to prevent the Earth heating up beyond 2 ℃ this century—a point scientists say will bring the danger of a changeable climate in which weather extremes are common, leading to drought, floods, crop failures and rising sea levels.
【小题1】What is the key information the author wants to give in Paragraph 1?
| A．The increasing speed of flowering is beyond scientists’ expectation. |
| B．Climate change leads to the change of food production patterns. |
| C．Plants’ reaction to weather could have damaging effects on ecosystem. |
| D．Food chains have been seriously damaged because of weather. |
| A．scientists should improve the design of the experiments |
| B．plants’ flowering is 8.5 times faster than leafing |
| C．there are 1,634 plant species on the four continents |
| D．the experiments failed to predict how plants react to climate change |
| A．they can prove the climate change clearly |
| B．they are very important in the food chains |
| C．they play a leading role in reducing global warming |
| D．they are growing and flowering much faster than before |
| A．It has risen nearly 0.2 ℃ since 1979. |
| B．It is 0.8 ℃ higher in 1979 than that of 1990. |
| C．It needs to be controlled within 2 ℃ in this century. |
| D．Its change will lead to weather extremes. |
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科目：高中英语 来源： 题型：阅读理解
Think about the different ways that people use the wind. You can use it to fly a kite or to sail a boat. Wind is one of our cleanest and richest power sources, as well as one of the oldest. Evidence shows that windmills(风车) began to be used in ancient Iran back in the seventh century BC. They were first introduced to Europe during the 1100s, when armies returned from the Middle East with knowledge of using wind power.
For many centuries, people used windmills to grind(碾碎) wheat into flour or pump water from deep underground. When electricity was discovered in the late 1800s, people living in remote areas began to use them to produce electricity. This allowed them to have electric lights and radios. However, by the 1940s when electricity was available to people in almost all areas of the United States, windmills were rarely used.
During the 1970s, people started becoming concerned about the pollution that is created when coal and gas are burned to produce electricity. People also realized that the supply of coal and gas would not last forever. Then, wind was rediscovered, though it means higher cost. Today, there is a global movement to supply more and more of our electricity through the use of wind.
【小题1】From the text we know that windmills________.
| A．were invented by European armies |
| B．have a history of more than 2,800 years |
| C．used to supply power to radio in remote areas |
| D．have rarely been used since electricity was discovered |
| A．Sailing a boat. |
| B．Producing electricity. |
| C．Grinding wheat into flour. |
| D．Pumping water from underground. |
| A．wind power is cleaner |
| B．it is one of the oldest power sources. |
| C．it was cheaper to create energy from wind |
| D．the supply of coal and gas failed to meet needs |
| A．The advantages of wind power. |
| B．The design of wind power plants. |
| C．The worldwide movement to save energy. |
| D．The global trend towards producing power from wind. |
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科目：高中英语 来源： 题型：阅读理解
Unlike traditional commercials, Public Service Advertisements（PSA）are primarily designed to inform and educate rather than sell a product or service. The goal of a PSA is not to make a big sale, but rather to change public opinion and raise awareness for a problem.
Smokey Bear has been a recognized symbol of the protection of America’s forests from fire. It is created to educate the public about the dangers of wildfires. Smokey Bear was started in 1944 with the slogan, “Smokey Bear Says—Care will prevent 9 out of 10 forest fires”. Smokey Bear’s later slogan, “Remember! Only You Can Prevent Forest Fires”, was created in 1947 by the Advertising Council in America. In April 2001, the message was changed to “Only You Can Prevent Wildfires”.
The wildfire prevention campaign with Smokey Bear is one of the longest and most successful campaigns in advertising history. The Advertising Council often was in partnership with other organizations and groups to create various advertising for Smokey Bear since 1944.
The Advertising Council teamed with Walt Disney Company to create a series of PSAs. The ads feature（以···为形象）characters form the classic film Sleeping Beauty and aim to reach parents and children. The lovely Bambi also appeared in the advertisements. Mickey Mouse is much more popular throughout the country.
Those PSAs, which appear on television, on the radio, in the newspaper and on the website continue to remind Americans about the importance of wildfire prevention have helped to reduce the number of acres burned annually by wildfires. According to recent survey, Smokey Bear and his famous words of wisdom “Only You Can Prevent Wildfires” are recalled by 3 out of 4 adults.
In addition to the PSA campaign, Smokey Bear has his own U.S. postage stamp and website for more information about wildfire prevention. From the website, you can also learn all about wildfires and how we can protect our forests.
【小题1】PSA are primarily designed to .
| A．educate the public | B．change people’s status |
| C．discuss a problem | D．sell products or services |
| A．It is one recognized symbols of Walt Disney cartoons. |
| B．It firstly appeared in America in 1944 with no slogan. |
| C．It is created to warn Americans of the dangers of wildfires. |
| D．Its slogan changes every three years. |
| A．By summing up. | B．By giving examples. |
| C．By comparison. | D．By asking questions. |
| A．helps a lot to reduce wildfires in America |
| B．isn’t popular among the American pupils |
| C．has set up its own website to advertise products |
| D．becomes the symbol of the Advertising Council |
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科目：高中英语 来源： 题型：阅读理解
The sea has always interested man. From it he can get food, minerals, and treasure. For thousands of years, he could sail on it. But he could not go far beneath its surface.
Man wants to explore deep into the sea. However, he is not a fish. He must breathe air, so he can't stay under the water's surface for any length of time. To explore deep water, man faces even more dangers and problems.
A diver who wants to stay under water for more than a few minutes must breathe air or a special mixture of gases. He can wear a diving suit and have air pumped to him from above. He can carry a tank of air on his back and breathe through a nose and a mouthpiece. Water weighs 800 times as much as air. Tons of water pushes against a diver deep in the sea. His body is under great pressure.
When a diver is under great pressure, his blood takes in some of the gases he breathes. As he rises to surface, the water pressure becomes less. If the diver rises too quickly, the gases in his blood form bubbles. The diver is then suffering from the bends. The bends can cause a diver to double up in pain. They can even kill him.
【小题1】On the whole, this passage is about ________.
| A．special mixtures of gases in deep sea |
| B．the problems man faces in deep sea diving |
| C．air pressure under the surface of sea water |
| D．a kind of illness that man suffers in the sea |
| A．deep divers should be in good health |
| B．divers explore the deep sea only for treasure |
| C．diving under the water too quickly causes a kind of illness |
| D．there is a special mixture of gases under the sea |
| A．the sea began to interest man a few years ago |
| B．man is not at home deep in the sea |
| C．all divers will get the bends sooner or later |
| D．the air in the sea water will kill a diver if he is not careful |
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科目：高中英语 来源： 题型：阅读理解
Plastic is everywhere because plastic is an extremely useful material. It is cheap, strong and lightweight. What’s more, it can take on nearly any form or shape, from soft and stretchy (有弹性的) to hard and glasslike.
Plastic, however, is far from perfect. It may even be bad for us. Studies now suggest that poisonous chemicals can get out of some types of plastic, get into our bodies, and cause a variety of health problems, including cancer, birth defects and attention deficit hyperactivity disorder (注意缺陷障碍).
Two types of chemicals in particular have raised special concern lately. They are called phthalates (邻苯二甲酸盐) and Bisphenol-A (二酚基丙烷), BPA for short. Not all plastic products contain them. But the ones that do are surrounded by controversy (争议). That’s because experts disagree on how dangerous these chemicals are.
Plastic is a single word, but plastic isn’t just one thing. What all plastics share in common are plasticizers -- special chemicals that allow the material to be changed into nearly any shape or texture. Plasticizers (塑化剂) are added to plastic during the manufacturing process.
Phthalates and BPA are two types of plasticizers that work in different ways. Phthalates add softness to things like shampoo bottles, raincoats and rubber. They are also used in perfumes and makeup. BPA, on the other hand, gives a hard, clear, almost glasslike feel to products such as infant bottles. BPA also appears in food and soda cans, DVDs and other unexpected places.
How do these chemicals get into us? When plastic is heated in the microwave or dishwasher, chewed on or scratched, the chemicals can seep (渗透) out of the plastic. Even though we can’t see them, we eat them, drink them and breathe them in.
Scientists and parents are especially worried about young children, who tend to chew on everything, including plastic. Dozens of countries, including the European Union, Japan, Canada and Mexico have already banned phthalates from products made for children younger than three. California and Washington have done the same. And a number of other states are considering similar rules. As for BPA, Canada became the first country to ban the chemical from baby bottles. A dozen states are considering it.
【小题1】What can we know about the plastic from the first paragraph?
| A．Its characters and effects. | B．Its wide use and bad points. |
| C．Its importance and chemicals. | D．Its popularity and advantages. |
| A．A soft plastic cup. | B．A pencil eraser. |
| C．A baby milk bottle. | D．A new perfume. |
| A．through mouth or nose | B．through blood transfusion |
| C．by feeling plastic products | D．by heating in the microwave |
| A．A new ban on plastic products. | B．Problems caused by the plastic. |
| C．Good points of the plastic. | D．The use of plasticizers. |
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