Some scientists warn that ice near the Earth’s Poles may indeed be melting. This “polar meltdown” may be the first sign that the Earth is heating up. We could be in very serious trouble if this trend continues. It is estimated that a meltdown of as little as 10 percent of Antarctica’s ice would raise sea levels around the globe by 4 to 9 meters. Floods would cover low-lying regions and turn coastal cities like New York and New Orleans into real life underwater world.
Scientists first predicted in the 1970s that heat trapped in the Earth’s atmosphere could cause a polar meltdown. Many now believe that human activities are turning up the heat. When we burn fossil fuels like coal and oil, we add carbon dioxide(CO2) gas to the Earth’s atmosphere. Cutting down trees also makes CO2 levels raise because trees normally soak up CO2 to make food. Scientists say higher CO2 levels strengthen the “greenhouse effect” and could increase the Earth’s temperature. In fact, CO2 levels have risen by 30 percent since the Industrial Revolution of the 18th and 19th centuries.
Over the past three years, satellite measurements have shown a sea level rise of about a quarter inch worldwide. “If nothing is done to reduce fossil-fuel pollution and global warming, sea levels will rise even more.” says geologist Richard Alley.
But even Alley admits that a polar meltdown would take time. The ice in Antarctica and Arctic locks up nearly nine times the volume of water contained in all the world’s rivers and lakes. These are such big “ice cubes” and it would probably take thousands of years to melt them.
Another scientist Charles Bentley doesn’t think a meltdown will happen at all. “Even if warmer temperatures begin to melt polar-ice,” he says, “the excess moisture would most likely be redeposit as snow.” In other words, the melted ice would evaporate into the atmosphere, refreeze, and fall as rain and snow over the Poles.
小題1:What consequence of global warming is mentioned in the passage?
A．More tropical storms.B．More tropical diseases.
C．Changes in farm productivity.D．Coastal flooding.
小題2: Which of the following statements does the second paragraph support?
A．CO2 in the atmosphere cannot keep the heat from escaping into space.
B．The increase of CO2 gas may warm the planet and help to melt polar ice.
C．Cutting down trees helps to greatly reduce CO2 levels.
D．The end of the short-lived age of fossil fuels is already in sight.
小題3: Geologist Richard Alley most likely agrees that _______.
A．the sea-level rise can be prevented by cutting back on energy-consuming activities
B．the recent breaking off of ice blocks from Antarctica is just a natural part of a long-term cycle
C．Antarctica temperatures have significantly changed since the Industrial Revolution
D．the polar meltdown may be an accidental change of climate rather than a sign of global warming
小題4:Charles Bentley believes that a polar meltdown will not occur because _______.
A．governments around the world are beginning to reduce CO2 levels in the air
B．a(chǎn) melting of the polar ice cannot be achieved with the present technologies
C．the melted ice in the polar areas would change into snow and rain over the Poles
D．the sun’s heat would have no chance of being absorbed by the polar ice
小題5:In which paragraph does the author mention the immense quantities of polar ice?
A．In the second paragraph.B．In the third paragraph.
C．In the fourth paragraph.D．In the fifth paragraph.

小題1:D
小題2:B
小題3:A
小題4:C
小題5:C
本文就極地冰雪融化的事實進(jìn)行了探討，主要說明了極地冰雪融化的原因及危害，文章最后一段也簡述了極地冰雪融化不會對地球產(chǎn)生影響。
小題1: D。細(xì)節(jié)題。全球氣溫升高造成的后果是：從 Floods would cover low-lying regions and turn coastal cities…可知答案選D。
小題2:B。概括題。第2段主要講了一些人為的活動(如CO2 增加)會導(dǎo)致氣溫的升高，故可知答案為B。
小題3: A。推理題。從 If nothing is done to reduce fossil-fuel pollution and global warming, sea levels will rise even more(如果不采取措施減少污染的話，全球氣溫升高會導(dǎo)致海平面上升)也就是說如果減少一些能源消耗可能對海平面上升有所抑制，故答案選A。
小題4:C。細(xì)節(jié)題。從 the melted ice would evaporate into the atmosphere, refreeze, and fall as rain and snow over the Poles可知答案選C。
小題5:C。判斷題。從第4段 The ice in Antarctica and Arctic locks up nearly nine times the volume of water contained in all the world’s rivers and lakes. These are such big “ice cubes” 可知答案為C。
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科目：高中英語 來源：不詳 題型：閱讀理解


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The new computerized shopping assistants don't come cheap. The Buddy devices will cost the average store about $160,000, and the Concierge will cost stores about $500 for each device.
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A．supermarkets    B．shop assistants        C．shopping carts    D．shop managers
54. Which of the following is the correct order of shopping with the computerized shopping carts?
a. Start the system.                     b. Make a shopping list.
c. Find the things you want.             D. Go to a self-checkout stand.
A．a(chǎn)bdc  B．bacd        C．a(chǎn)cbd          D．bcad
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A．intelligent shopping carts cost a large sum of money
B．the Concierge is cheaper than the Buddy devices
C．shop assistants with computer knowledge are well paid   
D．a(chǎn)verage stores prefer the Concierge to the Buddy devices
56. What might be the most suitable title for the text?
A．New age for supermarkets
B．Concierge and Shopping Buddy
C．New computers make shopping carts smarter
D．Touch-screen devices make shopping enjoyable

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科目：高中英語 來源：不詳 題型：完形填空

Don't blame genes for aging facial skin. A new study of twins suggests you can   1  those coarse(粗糙的) wrinkles, brown or pink spots, and dilated(膨脹的) blood vessels on too much time in the sun, smoking, and being overweight.
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But when it   6  skin cancer, the researchers say their findings support previous reports that   7  environment and genes affect skin cancer risk.
Baron's team   8  facial skin of 130 twins, 18 to 77 years old, who lived 9  in the northern Midwest and Eastern regions of the U.S. who were  10  the Twins Days Festival in Ohio in August 2002.
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Baron and colleagues say the current findings, which highlight ties between facial   18 and potentially avoidable  19  factors -- such as smoking, being overweight, and   20  overexposure to the sun's damaging rays -- may help motivate people to minimize these risky behaviors.
(    ) 1. A. blame                     B. owe                 C. take                 D. bring
(    ) 2. A. same                       B. different           C. similar             D. common
(    ) 3. A. explain                    B. confirm            C. declare             D. shout
(    ) 4. A. equal                             B. related              C. close                D. strict
(    ) 5. A. characteristic           B. personal           C. natural             D. genetic
(    ) 6. A. comes to                 B. talks of             C. refers to           D. gets to
(    ) 7. A. all                          B. neither             C. both                 D. either
(    ) 8. A. examined                B. checked            C. inspected          D. interviewed
(    ) 9. A. most                       B. usually             C. mostly              D. always
(    ) 10. A. joining                  B. representing      C. attending          D. remarking
(    ) 11. A. separately              B. lonely              C. commonly               D. truly
(    ) 12. A. with                             B. on                    C. in                    D. without
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(    ) 16. A. In                         B. By                   C. As                    D. At
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Vegetable gardening is the relaxing art and science of turning a love for growing plants into a worthwhile activity.
Vegetable gardeners agree that many home-grown vegetables picked at their best are superior to those vegetables purchased from markets. From spring through late fall, a well-planned and well-kept garden can prove a supply of fresh vegetables, thus increasing the nutrition of the family diet. Freezers make it possible to keep some of the vegetables to be enjoyed at a later date. Other vegetables can be stored for a few months in a cool area.
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Although the money spent for a garden may be little, one cannot escape the fact that gardening requires hard work and time. Many of the gardening tasks must be performed at times that are most inconvenient. Not doing jobs that should be done on a regular basis may result in failure and a negative feeling toward gardening.
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小題1:Home-grown vegetables ___________.
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B．have to be eaten as soon as they are picked
C．sell well in the market because of their good quality
D．picked at the right moment are more nutritious than those bought from the market.
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B．it is enjoyable and profitable
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C．should be large-sizedD．should consist of sandy soil
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A．Vegetable Gardening, an Escape from Boredom
B．An Ideal Vegetable Garden
C．Vegetable Gardening, a Worthwhile Activity
D．The Best Soil for Growing Vegetables

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Unfortunately, there is serious danger in RDNA research. Scientists want to create animals to cure old diseases, but these new animals may also create new diseases. It will be a serious problem if the animals escape from the science laboratory and into nature. As these animals are not natural, they may let loose many new powerful diseases.
As a result, RDNA research will create many solutions (解決方案), but it will also create many problems.
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A. he is son of his parents
B. his parents' DNA decides his appearance
C. he has received DNA from his father or his mother
D. scientists have put some of his parents' DNA into him
68. What does the underlined expression “l(fā)et loose” probably mean?
A. let... go free       B. get rid of        C. absorb          D. survive
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B. A New Way of DNA Research in Japan
C. The Causes and Effects of DNA Research
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A. the research has been stopped because the created animals carry virus
B. “super-trees” might be widely planted around the world
C. scientists have not completely understood DNA
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It seems that the children of Silicon Valley are paying the price of genius.
小題1:A person who has autism usually _____.
A．has difficulty in speakingB．loses communication skills
C．has difficulty in workingD．hates people around
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A．The children are brought up in Silicon Valley.
B．Autism is just a result of working in Silicon Valley.
C．The children suffer from autism due to their parents in Silicon Valley.
D．Autism makes the children in Silicon Valley unable to communicate.
小題3:Some people think that no cure of autism should be found because ______.
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C．harm will be done to the childrenD．a(chǎn)utism is necessary in some way
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A．It’s a pity that they cannot have a normal life.
B．They are the pride of the human race.
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科目：高中英語 來源：不詳 題型：閱讀理解

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Lucien Rudaux,a French artist,was the first to use his artistic ability and his knowledge of astronomy in art.His paintings show a mixture of skilled observations,brilliant imagination and careful attention.As a result,many of his works have come surprisingly close to actual conditions on distant planets.His painting of Mars included moonlike craters(火山口) that were first photographed by the astronauts in 1965.His 1930 painting of a dust storm looks remarkably like a photograph of a storm taken by the astronauts in 1976.
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小題1:The passage tells us _________.
A．the surprising exactness of space artistsB．the popular success of Lucien Rudaux
C．the imaginations of great artistsD．the likeness between the Moon and Mars
小題2:According to the passage,artist-astronomers spent their lives _________.
A．exploring the planetsB．studying paintings
C．painting the planetsD．producing spaceships
小題3:The works of Lucien Rudaux are a mixture of _________.
A．a(chǎn)stronomy and mathematicsB．a(chǎn)stronomy and painting
C．photograph and artD．fact and imagination
小題4:In 1965,the astronauts photographed _________.
A．a(chǎn) spaceshipB．a(chǎn) planet C．craters on the MoonD．a(chǎn) painting

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科目：高中英語 來源：不詳 題型：閱讀理解

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Proper training allows the animals to receive the care they need. It was very difficult to get untrained animals, especially the larger ones, to stay still when they needed medical attention. Now they can be trained, on command, to remain still and even to allow blood samples to be taken and shots administered. All this is accomplished through positive reinforcement, without the use of any force. Affection training, as this process is called, has been used with great success on a wide variety of zoo animals. Animal behavior experts have taught zoo keepers to train bears, tigers, monkeys, and many other species to behave in a way that provides for better animal-keeper interaction. This training also keeps the animals from becoming bored and inactive.?
Although some people proclaim(譴責(zé)) that this training is inhumance and cruel to animals, results have shown that captive(獵獲的)animals who previously were not doing well flourish under the new training procedures.?
小題1:The word “l(fā)istless” means _______.
A．countlessB．obedient
C．inactiveD．mysterious?
小題2: Which of the following is valid conclusion based on this passage?
A．It is safe to pet any animal.　?
B．Many animals respond favorably to rewards and affection.?
C．Animals in the wild can be trained.?
D．Animals should not be kept in zoos.?
小題3:The writer's purpose is to _______.
A．persuade people not to feed animals in the zoo?
B．show how easy it is to train animals?
C．explain method of training animals through rewards?
D．criticize zoo keepers?
小題4:Which of the following is an opinion??
A．Zoo keepers had problems in getting animals to leave their cages.?
B．Training is cruel to animals.?
C．Animals obey commands if they are trained to do so.?
D．Many animals can be trained, on commands, to remain still.

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科目：高中英語 來源：不詳 題型：閱讀理解

It is sometimes said that strange flying objects have been seen high up in the sky. People call these strange objects Unidentified Flying Objects (UFO). These UFOs caused a lot of interest. Some of the reports about them are difficult to believe. Some have been explained in scientific ways. Others have never been explained. Here is an account of UFOs from a report.
Dennis Burdens, who wrote an article, tells us that he once saw a UFO himself. He was having dinner one night with a friend near Tripoli, Libya, and after dinner the two men walked across a yard to his room to look at some papers. Burdens noticed that the moon looked strange that night.
“It wasn’t the moon ”, was the reply.
They watched the light and saw that it was moving. It seemed to be an object rather like a big plate. In some ways it looked like smoke with a light on it, but it wasn’t smoke because it didn’t change its shape. It was moving in a regular way. That is to say, it didn’t go suddenly faster or more slowly, and it didn’t go higher or lower. So the two men decided that there must be men in it.
After that, Burdens said that he felt eyes looking at him. He was being watched in the darkness.
When it was nearer, they noticed that the bottom parts were brighter than the top. The bottom was yellow and the top red. Then the object suddenly turned away and left Libya, moving very fast.
On a later day Burdens talked to other people about it, and he found some who had seen it. They all described it in the same way. Could they all be mistaken?
小題1: UFOs are _____.
A．flying high up in the skyB．strange flying objects
C．difficult to believeD．very interested
小題2: A UFO was seen one night _____.
A．when they were walking across a yard to Burdens’ room
B．while they were looking at the light
C．when Burdens noticed the moon appearing strange
D．while they were having dinner
小題3:The UFO moved _______.
A．regularlyB．in a changeable wayC．slowlyD．fast
小題4: The UFO looked like _____ .
A．smokeB．a(chǎn) large plateC．lightD．a(chǎn) jumping object
小題5:The UFO was seen ______ .
A．by Burdens and his friendB．brighter in the darkness
C．by several peopleD．to have a yellow bottom and a red top in the same way

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