The size and location of the world’s deserts are always changing. Over millions of years, as climates change and mountains rise, new dry and wet areas appear. But within the last hundred years deserts have been increasing after frightful speed. This is partly because of natural changes, but most responsible for creating deserts are men.
Man can make deserts, but they can also prevent them from getting bigger. Algeria is planning a green belt of trees along the edge of the Sahara Desert to stop the sand. In China, too, windbreaks are being built in the northwest to keep the desert from growing.
But desert still threaten the world. Experts believe that land that is on the way to becoming deserts equals the size of Australia, Russia and US put together. Can we stop the spread of the world’s deserts and save the land that is so essential to mankind? Yes, we can, And we must.
【小題1】The reason for the land that turns into deserts is mostly because of _______
| A．the changing of the climates | B．man |
| C．the natural changes | D．the wind |
| A．trees planted as a belt to stop the wind |
| B．high walls as a belt to stop the wind |
| C．long and deep ditch as a belt to stop the wind |
| D．men stood side by side as a belt to stop the wind |
| A．of increasing at an unbelievable speed |
| B．of spreading in Australia , Russia, and the US |
| C．of appearing new dry and wet areas in every part of the world |
| D．that they cause the changes of the climates |
| A．People move away from the land that is on the way to become deserts |
| B．To build great walls to stop the wind and sand |
| C．To plant trees and grass on the surface of the land |
| D．To irrigate the desert |
【小題1】B
【小題2】A
【小題3】A
【小題4】C
解析試題分析：文章介紹了現(xiàn)在沙漠化的嚴重性和造成的原因，以及怎么解決這個問題。
【小題1】細節(jié)題：根據(jù)文章的第一段的句子：This is partly because of natural changes, but most responsible for creating deserts are men.可知土地變成沙漠的原因是因為人為因素。所以選B。
【小題2】猜詞題：根據(jù)第二段的句子：In China, too, windbreaks are being built in the northwest to keep the desert from growing.可知中國正在建造windbreaks 來阻止沙漠?dāng)U大，所以windbreaks 是“防風(fēng)帶”的意思。所以選A。
【小題3】細節(jié)題：根據(jù)第三段的句子：But desert still threaten the world. Experts believe that land that is on the way to becoming deserts equals the size of Australia, Russia and US put together. 可知沙漠仍然在威脅著世界以令人難以置信的速度。所以選A。
【小題4】推理題：根據(jù)文章第二段的句子：Algeria is planning a green belt of trees along the edge of the Sahara Desert to stop the sand 可知最好的阻止沙漠化的方法是在地面上種樹種草，所以選C。
考點：考查環(huán)保類短文
科目：高中英語 來源： 題型：閱讀理解
For years, my family has vacationed in the same Florida town. In fact, we just returned home after spending a week of spring break there with our three sons.
Many nights, we take the same scenic drive to dinner at a favorite restaurant. As we travel along Gulf Shore Boulevard, we admire a combination of small beach apartments, swanky high-rises and spectacular homes.
A few years ago, we noticed that whenever we drive this particular route, there are always two men sitting in front of the same third-floor window of a low-rise apartment building that overlooks the road. All that is visible from the road are their two silhouettes. Even during off-peak months, they’ve always been there. Over the years, we’ve had great fun speculating about who they are, whether they’re having a drink, and if so, what they fancy, where they’re from, and what they might be discussing. Our guesses have become a modern form of car bingo. Widowers? Retirees? Partners? We’ve run through the gamut of possibilities.[來源:學(xué)科網(wǎng)ZXXK]
Eventually, I started beeping the horn as we passed. We’d wave. Our new friends would do likewise. There was something comforting in seeing them. In a world of constant change, it has been nice to look up and see that they are there, just as we remember from our last visit. And then last spring, we drove by and they were missing. The apartment was dark. No one was visible in the window. Strangely, we drove by and they were missing The apartment was dark. No one was visible in the window. Strangely, we grew worried about two people we’d never even met. Where did they go? A new round of the guessing game began.
On our last trip at Christmastime, we were relieved to see them once again. We were driving past about 6 p.m., and there they were at cocktail hour. I told my wife that I suspected they were gin drinkers and said we should buy them a bottle. She said that if I bought it, she’d deliver it. I said, “Tomorrow.”
【小題1】Driving along the scenic route, the author’s family were to .
| A．meet their friends there | B．visit the Florida town |
| C．a(chǎn)ppreciate a place of interest | D．have supper together |
| A．It was a pleasure for them to see the two men again. |
| B．It was his habit while driving along the special route. |
| C．It was an agreement between him and the two men. |
| D．It was for the sake of safety while driving. |
| A．generous and sensitive | B．curious and kind |
| C．helpful and brave | D．friendly and hurnorous |
| A．The two men’s favorite drinks. |
| B．The two men’s beach apartments |
| C．The reason of the two men’s absence |
| D．The author’s next visit to the town |
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科目：高中英語 來源： 題型：閱讀理解
Researchers have developed new software using smart phones’GPS and imaging abilities that determine the exact location of distant objects as well as monitor the speed and direction of moving objects．The software could eventually allow smart phone-armed soldiers to target the location of their enemies．On the home front，the software could be used by everyone，including golfers judging distance to the green and biologists documenting the location of a rare animal without disturbing it．
“The great advantage of a Smartphone is that it provides so many tools in a single，readily available，relatively inexpensive package，”said Qia Wang，a doctoral student who led the development of the software．“For example，on the battlefield，a soldier needs a rangefinder，compass，GPS and other tools to get information before calling in an air strike．With our software，the soldier can have all those instruments in one device that can be purchased off the shelf．When that soldier returns from War，she can use the same Software to protect her family by clocking a speeder near her children’s school and catching the criminal on video．”
Wang and his colleagues developed their software to locate and track：
Targets of known size—when the size of the target is known．a(chǎn) single image is enough to pinpoint the target’s location．
Targets of unknown size—If the exact size of a target is unknown，the software uses two images to triangulate the location of the target·
Moving targets—By taking a short video of a moving target，the smartphone software can calculate how fast the target is moving and in what direction it is going.
“Currently，our software is limited by the physical abilities of smartphone hardware，but the devices are improving rapidly，”Wang said．“We expect that improvements in GPS accuracy，battery life and camera resolution will allow our software to make even more accurate observations．”
【小題1】．From Paragraph 1 we can know that the new software can_______.
| A．determine the speed of moving objects |
| B．1ocate objects in the distance exactly |
| C．defend soldiers against their enemies |
| D．help biologists protect rare animal |
| A．make an advertisement |
| B．describe the software briefly |
| C．show the benefits of the software |
| D．present the functions of smartphones |
| A．By taking a short video． | B．By locating its position. |
| C．By taking a single image． | D．By measuring real-life size. |
| A．Casual． | B．Optimistic． |
| C．Cautious． | D．Flexible |
| A．Qia Wang，a Talented Doctoral Student |
| B．Use Smartphones to Their Full Potential |
| C．Targeting and Tracking With Smartphones |
| D．Smartphone-armed Soldiers on the Battlefield |
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科目：高中英語 來源： 題型：閱讀理解
The evolution of the first animals may have oxygenated（供氧）Earth's oceans. New research
led by the University of Exeter challenges the long held belief that oxygenation of the atmosphere and oceans was a precondition for the evolution of complex life forms.
The study, published in the journal Nature Geoscience, builds on the recent work of scientists in Denmark who found that sponges（海綿動物）一the first animals to evolve一require only small amounts of oxygen.
Professor Tim Lenton of the University of Exeter, who led the new study, said: "We argue that the evolution of the first animals could have played a key role in the widespread oxygenation of the deep oceans. This in turn may have facilitated the evolution of more complex, mobile animals."
Critical to determining oxygen levels in the deep ocean is the balance of oxygen supply and demand. Demand for oxygen is created by the sinking of dead organic material into the deep ocean. The new study argues that the first animals reduced this supply of organic matter一both directly and indirectly.
Sponges feed by pumping water through their bodies, "digesting" the tiny particles of organic matter, and thus helping oxygenate the shelf seas that they live in. By oxygenating more of the bottom waters, the first animals actually increased the removal of the essential nutrient phosphorus（磷）in the ocean. This in turn reduced the productivity of the whole ocean ecosystem, lowering oxygen demand and thus oxygenating the deep ocean.
A more oxygen-rich ocean created ideal conditions for more complex mobile animals to evolve, because they have a higher requirement for oxygen. These included the first predatory（肉食的）animals with guts（內(nèi)臟）that started to eat one another, marking the beginning of the type of food webs we are familiar with today.
Professor Simon Poulton of the University of Leeds, who is a co-author of the study, added: "This study provides a possible mechanism for ocean oxygenation without the requirement for a rise in atmospheric oxygen. It therefore questions whether the long-standing belief that there was a major rise in atmospheric oxygen at this time is correct. We simply don't know the answer to this at present, which is ultimately key to understanding how our planet evolved to its current habitable state. Geochemists need to come up with new ways to explain oxygen levels on the early Earth."
【小題1】The underlined word "facilitated" in Para. 3 is closest in meaning to＿＿．
| A．prevented | B．promoted | C．interrupted | D．witnessed |
| A．phosphorus can keep the productivity of the ocean ecosystem |
| B．complex animals consume the same amount of oxygen as sponges |
| C．the sinking of dead organic material into the deep ocean produces oxygen |
| D．the existence of the first animals marks the beginning of modern food webs |
| A．their study gives a new explanation for the high oxygen content in the air |
| B．oxygen increased greatly in the air as the first animals oxygenated the oceans |
| C．their study answers the question of how the earth evolved to the present state |
| D．ocean oxygenation does not necessarily require a rise in atmospheric oxygen |
| A．present the view that the first animals played an active role in oxygenating oceans |
| B．introduce two opposite opinions on how the first animals oxygenated oceans |
| C．a(chǎn)nalyze how atmospheric oxygen stepped up the evolution of oceanic animals |
| D．explain how oceanic oxygen determines the amount of atmospheric oxygen |
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科目：高中英語 來源： 題型：閱讀理解
In the north of Scotland there is a lake called Loch Ness. It is the biggest lake in Britain. It is over thirty kilometres long and in places nearly 300 meters deep. It is cold and dark and not many people went there until after 1930. Then a road was made around the lake. Holiday makers began to use the road, and this was when the stories began.
Someone said that he had seen a monster in the lake. He said it was twelve meters long. It had a long neck and a small head. Then someone else said he had seen it. Others said the same thing and in 1933 a London doctor took a photo. It looked like a monster with a long neck and a thick body but the photo was not dear. The newspapers printed the picture and called it the Loch Ness monster, or "Nessie".
Then the argument began. Some people, however, were certain there was something living in the lake. Others said there was nothing there.
In 1961, a lot of people joined together to make a real effort to see and photograph the monster if there was one! Several times people thought they saw something but after ten years there was still no real proof.
Later underwater television cameras were used, but no one found any real proof. However, they did find something interesting: a huge underwater cave. It was big enough to be home of a monster, but of course, this was not a proof.
In 1975, however, some American scientists formed a search group. They used an underwater camera. It took pictures every seventy seconds. Some of the pictures seemed to show a red-brown creature. Its body was about four meters long and had a very ugly head on the end of a four meter neck. Many people then began to believe in the monster. But even today we can not be certain.
【小題1】Before 1930, ____.
| A．few people went to Loch Ness Lake |
| B．many people had been there |
| C．nobody went to the lake |
| D．nobody knew about the lake |
| A．It looked like a horse. |
| B．It was a creature with a long neck and a small head. |
| C．It looked beautiful. |
| D．It was tiny and pretty. |
| A．An American |
| B．A television camera |
| C．A holiday-maker |
| D．A doctor from London |
| A．found the monster itself |
| B．found a huge cave under water |
| C．believed that there wasn't any monster at all |
| D．took some pictures which seemed to show a monster |
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科目：高中英語 來源： 題型：閱讀理解
“I’ve never met a human worth cloning,” says cloning expert Mark Westhusin from his lab at Texas A&M University. “It’s a stupid endeavor.”
That’s an interesting choice of adjective, coming from a man who has spent millions of dollars trying to clone a 13-year-old dog named Missy. So far, he and his team have not succeeded, though they have cloned two cows and a cat.
They just might succeed in cloning Missy soon — or perhaps not for another five years.
Westhusin's experience with cloning animals leaves him upset by all this talk of human cloning. In three years of work on the Missy project, using hundreds upon hundreds of dog's eggs, the A&M team has produced only a dozen or so embryos carrying Missy's DNA. None have survived the transfer to a surrogate（代孕的）mother. The wastage of eggs and the many spontaneously aborted(流產(chǎn)，發(fā)育不全) fetuses（胎）may be acceptable when you're dealing with cats or bulls, he argues, but not with humans. “Cloning is incredibly inefficient, and also dangerous,” he says.
Even so, dog cloning is a commercial opportunity, with a nice research payoff. Ever since Dolly the sheep was cloned in 1996, Westhusin's phone has been ringing with people calling in hopes of duplicating their cats and dogs, cattle and horses. “A lot of people want to clone pets, especially if the price is right,” says Westhusin. Cost is no obstacle for Missy's mysterious billionaire owner; he's put up $3.7 million so far to fund A&M's research.
Contrary to some media reports, Missy is not dead. The owner wants a twin to carry on Missy's fine qualities after she does die. The prototype（原型；雛形）is, by all accounts, athletic, good-natured and super-smart. Missy's master does not expect an exact copy of her. He knows her clone may not have her temperament（氣質(zhì)、性情）. In a statement of purpose, Missy's owner and the A&M team say they are “both looking forward to studying the ways that her clones differ from Missy.”
Besides cloning a great dog, the project may contribute insight into the old question of nature vs. nurture. It could also lead to the cloning of special rescue dogs and many endangered animals.
However, Westhusin is cautious about his work. He knows that even if he gets a dog pregnant, the offspring, should they survive, will face the problems shown at birth by other cloned animals: abnormalities like immature lungs and heart and weight problems~ “Why would you ever want to clone humans,” Westhusin asks, “when we're not even close to getting it worked out in animals yet?”
【小題1】By “stupid endeavor”, Westhusin means to say that ________.
| A．human cloning is a foolish undertaking |
| B．a(chǎn)nimal cloning is absolutely impractical |
| C．human cloning should be done selectively |
| D．a(chǎn)nimal cloning is not worth the effort at all |
| A．Its success is already in sight. |
| B．It is progressing smoothly. |
| C．It is doomed to utter failure. |
| D．Its outcome remains uncertain. |
| A．study the possibility of cloning humans |
| B．search for ways to modify its temperament |
| C．find out the differences between Missy and its clones |
| D．examine the reproductive system of the dog species |
| A．a(chǎn) bad temper |
| B．defective（有缺陷的、有毛病的）organs |
| C．immune deficiency |
| D．a(chǎn)n abnormal shape |
| A．Cloning of Missy |
| B．Scientist Says ‘No’ to Human Cloning |
| C．Human Cloning Is Dangerous . |
| D．Westhusin Is Cautious about Cloning |
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科目：高中英語 來源： 題型：閱讀理解
Have you ever thought, “I wish I could take a year off and just travel around the word?” Well, three lucky American teenagers were able to do just that. The teens — two males and one female — got an all-expenses paid, yearlong hike to five continents.
This trip didn’t include any five-star hotels or shopping funs. Eighteen-year-old Jamie Fiel from Keller, Texas, 17-year-old Arsen Ewing from Canyon, California, and 16-year-old Tyler Robinson from Lincoln, Massachusetts, didn’t expect fancy treatment. They signed up for the experience of a lifetime, which included hard work, often uncomfortable accommodations, and encounters with some of nature’s most dangerous animals and environments.
Jamie, Arsen, and Tyler were among hundreds of high school kids nominated by their science teachers to take this trip. Earthwatch Institute sponsored this adventure. Each year, Earthwatch employs thousands of volunteers worldwide to help with scientific research projects.
The group went all around the world to get a close look at the most pressing environmental issues of our time. Their assignments were as varied as their locations, and included measuring and attending pink flamingos in Kenya’s Great Rift Valley, and tracking giant sea turtles in Costa Rica.
As they worked with the Earthwatch scientists, Jamie, Arsen, and Tyler began to understand that we are at a critical moment in the life of our planet. Time for change is running out. As the teens went from country to country and witnessed different environmental dangers and challenges, they understood that solutions to important environmental issues start with the power of one person’s actions. They realized that each of them can make a difference.
【小題1】These teenagers went on the journey around the world .
| A．to experience the most serous environmental problems on the earth |
| B．to bring the kindness of America to the other parts of the world |
| C．to go on sightseeing around the world |
| D．to call on more teenagers to join Earthwatch Institute |
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科目：高中英語 來源： 題型：閱讀理解
The Cave of Lascaux
It was Thursday, September 12,1940.Four French teens were out exploring in the woods off the northern slopes of the Pyrenees.Many years before, an old pine tree fell and left a large hole in the ground.The teenagers were curious and they started to explore the area and fell into one of the most important archeological(考古的) finds of the twentieth century!
There are over a hundred limestone(灰?guī)r) caves in this region of France.Some were inhabited by humans thousands and thousands of years ago.Between 15,000 and 17,000 years ago, humans painted lively creatures such as cows, bulls, horses, and even cats on the walls of the caves.
Why did they mark these walls? Was it to tell a story? Was it to record a famous battle? There are many mysteries and ancient secrets still waiting to be discovered in the cave of Lascaux.There were dots in many of the paintings.What do these dots mean? Were they meant to record time, a calendar? Deep in the cave, there is a drawing of a “birdman”．What does this mean? Was it a place for sacred ceremonies? No one knows for sure.
The actual cave of Lascaux was closed in 1963 due to the overabundance of tourists visiting the site.The carbon dioxide that people were breathing out was causing damage to the fragile(易損的) cave paintings.Up till now the Lascaux cave is still closed for tourists.Only a specialist can visit the cave by a special order that must be made out almost a year in advance.Not more than six persons can enter the cave per day.Two days a week, the cave is completely closed.Due to the great interest of numerous tourists, in 1983 Lascaux Ⅱwas opened for tourism.It is an exact replica of the cave of Lascaux.
【小題1】The Pyrenees are the __________ in France.
| A．mountains | B．forests |
| C．rivers | D．caves |
| A．built | B．explored | C．lived in | D．destroyed |
| A．old | B．beautiful |
| C．easily damaged | D．interesting |
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科目：高中英語 來源： 題型：閱讀理解
Different Kinds of Birds
Avocets
There are 4 different species of Avocet found around the world-Pied Avocet , Red-necked Avocet, Andean Avocet, and American Avocet. This bird is found in North and South America, Europe, and even Australia. This long-legged bird has webbed feet and an upturned, thin bill.
Bald Eagles
The bald eagle is found in wetlands and near coastlines. They have very large and broad wings, with a broad tail. The head and tail are white in color, which is the major distinguishable factor of the bald eagle. The long, hooked bill is yellow in color. They feed on fish, ducks, rabbits, geese, etc.
Eastern Bluebirds
These are around 61／2 inches in length .Such birds are found mainly in gardens woodlands, and orchards with the arrival of spring. Male Eastern Bluebirds are bright blue on the upper half and have a white belly. Female Eastern Bluebirds have a grayish head with shades of blue as well. New York and Missouri have named this creature as their state bird.
Flamingos
These pink-bodied birds with a unique beak, are generally found in large groups. The beaks are capable of removing mud before they can eat their food. Flamingos can be found in many African countries, areas of Florida, and one particular type of species is found only in the Andean highlands.
Kingfishers
There are over 90 various species of Kingfishers found in the woodland areas as well as wetlands across the world. They are excellent divers when it comes to catching fish in the rivers. Their pointed bills are what help them bag the catch. Kingfishers have good eyesight whether they are in air or underwater.
【小題1】____ most probably mean the same.
| A．Bill and beak | B．Head and beak | C．Bill and belly | D．Leg and feet |
| A．Eastern Bluebirds are all blue in color. |
| B．Avocets can be found around the world. |
| C．The white head and tail make Bald Eagles distinguishable. |
| D．More Kingfishers can be found in wetlands than in the woodland areas. |
| A．Bald Eagles |
| B．Female Eastern Bluebirds |
| C．Andean Avocets |
| D．one special type of Flamingos |
| A．habitats | B．shapes | C．a(chǎn)bility to catch fish | D．eyesight in air or under water |
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