Ten years ago, with only about 1, 000 pandas left in the world, China was desperately trying to clone(克隆)the animal and save the endangered species(物種). That was a move similar to what Texas A & M University researchers had been undertaking for the past five years in a project called “Noah’s Ark”(諾亞方舟).
Noah’s Ark was aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M’s College of Veterinary Medicine, said there would be enough of the basic building blocks to reintroduce the species in the future.
It was estimated that as many as 2, 000 species of mammals, birds reptiles would become extinct in over 100 years. The panda, native only to China, was in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They were then trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
“The nucleus transfer(核子移植)of one species to another is not easy, and the lack of available(capable of being used)panda eggs could be a major problem,”Kraemer believed. “They will probably have to do several hundred transfers to result in one pregnancy(having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort, ”added Kraemer, who was one of the leaders of the project at Texas A& M, the first-ever attempt at cloning a dog.
“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed. ”
At present, the project has worked. The number of the pandas has increased to more than 1, 500.
【小題1】The aim of “Noah’s Ark” project was to .
A.make efforts to clone the endangered pandas |
B.save endangered animals from dying out |
C.collect DNA of endangered animals to study |
D.transfer the nucleus of one animal to another |
A.a(chǎn)vailable panda eggs | B.host animals |
C.qualified researchers | D.enough money |
A.China’s Success in Pandas Cloning |
B.The First Cloned Panda in the World |
C.Exploring the Possibility to Clone Pandas |
D.China—the Native Place of Pandas Forever |
A.Kraemer and his team had succeeded in cloning a dog |
B.scientists tried to implant a panda’s egg into a rabbit |
C.Kraemer would work with Chinese scientists in clone researches |
D.a(chǎn)bout two thousand species would probably die out in a century |
【小題1】B
【小題2】A
【小題3】C
【小題4】D
解析本文講述的是十年前中國竭力克隆瀕臨絕種的熊貓, 這和Texas A & M University的Noah’s Ark工程極為相似, 都是想拯救瀕臨滅絕的動物。
【小題1】選B。推理判斷題。從第二段內(nèi)容可知, “諾亞方舟”工程的目標是把瀕臨滅絕的動物的蛋(卵)、胚胎、精液和DNA儲存在液體氮中, 如果某一種動物瀕臨滅絕時, 將來可以重現(xiàn)這一動物。
【小題2】選A。細節(jié)理解題。從第六段第一句“The nucleus transfer of one species to another is not easy, and the lack of available(capable of being used)panda eggs could be a major problem”可以做出正確判斷。
【小題3】選C。主旨大意題。從文章內(nèi)容來看, 無論是中國還是世界克隆熊貓還沒有成功, 所以排除A、B項; D項內(nèi)容明顯與文章內(nèi)容不符, 故排除。所以“探索克隆熊貓的可能性”應該是這篇文章的標題。
【小題4】選D。推理判斷題。此題B項的干擾性較強, 但由于它沒有說明是Chinese scientists, 所以應排除。A、C項明顯與原文不符。根據(jù)文章第三段第一句可知選D。
科目:高中英語 來源: 題型:閱讀理解
Sometimes, the simplest ideas are the best. For example, to absorb heat from the sun to heat water,you need large, flat, black surfaces. One way to do that is to build those surfaces specially, on the roofs of buildings. But why go to all that trouble when cities are full of black surfaces already, in the form of asphalt (柏油) roads?
Ten years ago, this thought came into the mind of Arian de Bondt, a Dutch engineer. He finally persuaded his boss to follow it up. The result is that their building is now heated in winter and cooled in summer by a system that relies on the surface of the road outside.
The heat-collector is a system of connected water pipes. Most of them run from one side of the street to the other, just under the asphalt road. Some, however, dive deep into the groun.
When the street surface gets hot in summer, water pumped through the pipes picks up this heat and takes itunderground through one of the diving pipes. At a depth of 100 metres lies a natural aquifer(蓄水層) into which heat several heat exchangers (交換器) have been built. The hot water from the street runs through these exchangers, warming the ground-water, before returning to the surface through another pipe. The aquifer is thus used as a heat store.
In winter, the working system is changed slightly. Water is pumped through the heat exchangers to pick up the heat stored during summer. This water goes into the building and is used to warm the place up. After performing that task, it is pumped under the asphalt and its remaining heat keeps the road free of snow and ice.
【小題1】Which of the following is true according to the first two paragraphs?
A.Arian de Bondt got his idea from his boss. |
B.Large, flat, black surfaces need to be built in cities. |
C.The Dutch engineer's system has been widely used. |
D.Heat can also be collected from asphalt roads. |
A.To absorb heat from the sun. |
B.To store heat for future use. |
C.To turn solar energy into heat energy. |
D.To carry heat down below the surface. |
A.some pipes have to be re-arranged in winter |
B.the system can do more than warming up the building |
C.the exchangers will pick up heat from the street surface |
D.less heat may be collected in winter than in summer |
A.What we shall do if the system goes wrong . |
B.What shall we do if there are no asphalt roads |
C.How the system cools the building in summer . |
D.How the system collects heat in spring and autumn. |
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科目:高中英語 來源: 題型:閱讀理解
When you tidy your messy bedroom,it gets a lot easier to find things.Dreams may work the same way for a messy brain,helping you learn by organizing memories and ideas.
To test how much dreams can help learning,Robert Stickgold had some students play a shapefitting game called Tetris (俄羅斯方塊) for a few hours and then go to sleep.Soon they were dreaming of falling Tetris shapes.Interestingly,the worst Tetris players had the most Tetris dreams and improved their game the most.Similar tests have shown the same results for all kinds of skills.
As we dream,many important tasks are getting done.The brain decides what to keep and what to forget.It is connecting new experiences to older learning.In fact,the brain is learning all night long.
Another important task of dreams may be to help us deal with emotions (情緒).At night,emotions are in the driver’s seat.People who have had an upsetting experience often dream about it afterward.Often the dream event changes somehow—another way the brain tries to make the memory less upset.So if your best friend moves away,you might dream that you’re the one who’s moving.In fact,dreams have a proven power to improve mood,and people who dream about what’s bothering them usually feel better sooner than those who don’t.
Everybody dreams for a couple of hours every night—in the course of your life,you’ll spend about 25 years asleep and 6 years dreaming.There’s probably no single answer to the question why we dream,but there doesn’t have to be.One dream might help you remember your math facts,while another might lead to a new invention,or give you a fun,crazy story to tell your friends.It’s all in a night’s work for our busy,mysterious brains.
【小題1】Robert Stickgold’s test shows that________.
A.games are useful for memory |
B.dreams can help improve skills |
C.players stop learning in dreams |
D.tasks can only be settled through dreams |
A.dreams can get rid of sufferings |
B.only drivers can deal with emotions |
C.one may be less upset after a dream |
D.dreams can copy what one experienced |
A.Dreaming does harm to one’s mood. |
B.Dreaming affects the quality of sleep. |
C.It’s hard to find out the secrets of dreaming. |
D.It’s not so important to know the cause of dreaming. |
A.Dreams and memories. | B.Dreams and emotions. |
C.The benefits of dreams. | D.The patterns of dreams. |
A.Entertainment. | B.Tourism. |
C.Science. | D.Advertisement. |
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科目:高中英語 來源: 題型:閱讀理解
There was great excitement on the planet of Venus (金星). Venusian scientists managed to land a satellite on the planet Earth, and it has been sending back signals as well as photographs ever since.
The satellite was directed into an area known as Manhattan, named after the great Venusian astronomer Professor. Manhattan, who first discovered it with his telescope 20000 light years ago.
Because of excellent weather conditions and extremely strong signals, Venusian scientists were able to get valuable information as to feasibility (可行性) of a manned flying saucer landing on Earth. A press conference was held at the Venus Institute of Technology.
“We have come to the conclusion, based on last week's satellite landing,” Prof. Zog said, “that there is no life on Earth.”
“How do you know this?” the science reporter of the Venus Evening Star asked.
“For one thing, Earth's surface in the area of Manhattan is made up of solid concrete and nothing can grow there. For another, the atmosphere is filled with carbon monoxide (一氧化碳) and other deadly gases and nobody could possibly breathe this air and survive.”
“What does this mean as far as our flying saucer program is concerned?”
“We shall have to take our own oxygen with us, which means a much heavier flying saucer than originally planned.”
“Are there any other dangers that you discovered in your studies?”
“Take a look at this photo. You see this dark black cloud hovering (盤旋) over the surface of Earth? We don't know what it is made of, but it could give us a lot of trouble and we shall have further tests before we send a Venus Being there.”
“Over here you will notice what seems to be a river, but the satellite findings indicates it is polluted and the water is unfit to drink. This means we shall have to carry our own water, which will add even greater weight to the saucer.”
“If all you say is true, won't this set back the flying saucer program several years?”
“Yes, but we shall continue as soon as the Grubstart gives us the added funds(資金).” Profession. Zog replied.
【小題1】According to the passage, the Venusian scientists succeeded in getting important information about ________.
A.the feasibility of landing a satellite on Earth |
B.the possibility of making a firstrate flying saucer |
C.the feasibility of sending a Venus Being to Earth |
D.the possibility of directing a flying saucer into Manhattan |
A.they need it in their way to the planet of Earth |
B.the Earth's atmosphere is filled with deadly gases |
C.there is a low level of oxygen for Venusians |
D.there is no air on the planet of Earth |
A.landing a manned flying saucer on Earth will be carried out soon |
B.Venusians will land on Earth to help to stop serious pollution |
C.it's unnecessary to land a manned flying saucer on Earth at present |
D.pollution on Earth makes it impossible for Venusians to survive there |
A.In a popular magazine. |
B.In a fairy tale. |
C.In an observation journal |
D.In science fiction |
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科目:高中英語 來源: 題型:閱讀理解
Has been a dream for 30 years but now the world’s first flying car is set to hit the roads this year.
Ever since the “Back to the Future” movies lit up our screens in the 1980s, designers have dreamt of cars that could take to the sky at the push of a button(按鈕). And now pilots can order their own “roadable” plane for just£127, 000.
The plane, which has fold-out wings that span 17. 5 feet, can be up to 115 mph. Back on the land, it can also travel at “highway speeds” in car mode(模式).
Fuelling(加燃料)the 19 feet long plane couldn’t be simpler—you just drive it into a petrol station and fill it up.
A spokeswoman said, “You can keep your ‘light-sport airplane’ in your garage. But because it needs a short runway to take to the air, you will have to drive to your local airport, fly up to 460 miles, land and drive directly to your destination(目的地). You will always be ready to drive or fly. ”
The spokeswoman added, “Never let bad weather change your trip. You can simply divert(使轉(zhuǎn)向)and continue on the ground until the weather clears. ”
There’s no risk to you—this is only the chance for you to be the first at your home field to unfold(展開)your wings and fly into the future.
【小題1】According to the text, the “roadable” plane .
A.can fly in the sky at “highway speeds” in car mode |
B.is a kind of car with fold-out wings |
C.is a little difficult to fuel |
D.can only travel on the highway |
A.there are some skillful pilots |
B.pilots have no cars to drive |
C.pilots can’t afford a “roadable” plane |
D.cars can fly in the sky |
A.Light-sport airplane. |
B.Your garage. |
C.The local airport. |
D.A petrol station. |
A.call for people to buy the “roadable” plane |
B.show people the use of the “roadable” plane |
C.tell people only the “roadable” plane can fly in the future |
D.a(chǎn)sk people to unfold their wings and fly into the future |
A.land in a nearby airport until it clears |
B.turn back home until it clears |
C.land and drive on the ground |
D.fly high up to 460 miles |
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科目:高中英語 來源: 題型:閱讀理解
In Singapore,most of us love window-shopping while some others enjoy having a picnic at East Coast Park or Changi Beach on sunny days.Singaporeans are never bothered by the occasional thunderstorm.However,we know that if it rains for long continuous periods,there will be more serious effects.Just recently the main shopping street of Orchard Road was flooded and some part of Bukit Timah was impassable(不能通行的)to traffic.People reacted by writing in to the newspaper to complain about this! We forget that other countries suffer much worse effects.
Elsewhere,heavy tropical(熱帶的)storms often result in floods that ruin crops especially in Thailand and Malaysia.This in turn usually means that the price of rice and vegetables here in Singapore will rise because we import these products from them.If there is a typhoon or tsunami,thousands of lives are lost too.This happened in Indonesia and Phuket in Thailand in 2004 and It serves to remind us of how Mother Nature can cause great damage.
Weather patterns in general have changed dramatically in recent years.Scientists believe that global warming and the resulting melting of the polar ice-cap has caused the level of the ocean to rise.This in turn causes flooding of low-lying areas in countries where the land is rather flat and some parts of which is below water level.It is believed that human activities have caused Mother Nature to show her extreme anger,so it is now important that we really work together to cut down on harmful activities,for example,illegal logging(伐木)or irresponsible forest-burning to clear land for farming.
【小題1】From Paragraph 1,we can see that most Singaporeans love .
A.making complaints |
B.going out for picnics |
C.doing window-shopping |
D.traveling along the coast |
A.Heavy tropical storms will follow shortly. |
B.The price of rice and vegetables will go up. |
C.Many people will write in to the newspaper. |
D.More rice and vegetables will be imported. |
A.the arrival of heavy tropical storms |
B.the import of rice and vegetables |
C.the rising price of rice and vegetables |
D.the loss of lives in natural disasters |
A.c→a→e→b→d | B.a(chǎn)→c→e→b→d |
C.c→a→b→e→d | D.d→a→c→b→e |
A.Clear more land for farming. |
B.Reduce harmful human activities. |
C.Bring down the price of food. |
D.Improve the quality of weather. |
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科目:高中英語 來源: 題型:閱讀理解
Did you know that there are actually people who have paid for a flight to the moon? In the future, there will be a lot more opportunities to travel to faraway places than now… perhaps even as far as the moon. As people adventure further and further away and as planes, trains, cars, and rocket ships become faster, is it safer to have these vehicles controlled by humans or by computers?
While many flights by plane are controlled automatically by machines, most people today wouldn’t let their car drive itself. That’s because currently the autopilot function on your car can only keep it on the same course you are travelling on. It won’t turn the car right or left. It won’t stop if an animal jumps in the way. However, cars today can sense when something is too close and warn the driver with flashing lights and alarms. Many cars also have GPS(global positioning systems) that tell drivers which road to take and when to turn. These systems, unlike human drivers, never get lost. In the future, it is easy to believe that your car will be better able to drive itself with the aid of computers that can determine the position of your car and the speed it should travel at.
In addition to computers being ‘smarter’ than people regarding the best way to go or knowing how close another vehicle is, computers don’t get sick, tired, or angry. This means they won’t make the same mistakes that people make when they are not having a good day. While responding with emotion is a good thing when choosing the best way to deal with a friend’s personal problem, it may not be such a good thing when deciding what to do at the wheel of a fast-moving vehicle.
So what are the disadvantages of autopilot systems? Maybe one disadvantage is that a small computer problem could cause a serious accident. It could also be argued that in unexpected situations, computers might not be able to respond appropriately; some decisions require human emotions. Another problem might be that if everything were controlled by computers or robots, people wouldn’t have any jobs.
【小題1】What is the best title for the passage?
A.The Development of Autopilot |
B.Technology of Future Travel |
C.A New Driving System |
D.Computerized Cars |
A. It won’t make the same mistakes as people do. |
B. It can point out the best route for the driver. |
C. It might not respond properly to unexpected situations. |
D.It does not have human emotions to influence its function. |
A.inform you of the danger |
B.turn the car right or left |
C.do nothing about it |
D.stop the car |
A.Approving. | B.Objective. | C.Negative. | D.Doubtful. |
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科目:高中英語 來源: 題型:閱讀理解
In Egyptian myth, Apophis was the ancient spirit of evil and destruction, a demon (惡魔) that was determined to throw the world into darkness forever. A fitting name, astronomers reasoned, for a threat now rushing towards Earth from outer space. Scientists are monitoring the progress of a 390-metere wide asteroid (小行星) discovered last year, which is potentially on a collision (碰撞)course with the planet.
NASA has estimated that Apophis has an outside chance of hitting the Earth in 2036. If it did hit us, thousands of square kilometers would be directly affected by the explosion but the whole of the Earth would see the effects of the dust sent into the atmosphere. At a recent meeting of experts in Near-Earth objects (NEOs) in London, scientists said it could take decades to design, test and build the required technology to deflect the asteroid.
The Apophis asteroid is placed at four out of ten on the Torino scale—a measure of the threat caused by an NEO where 10 is a certain collision which could cause a global disaster. This is the most possible danger of any asteroid in recorded history and it has a 1 in 37 chance of hitting the Earth.
Alan Fitzsimmons, an astronomer from Queen’s University Belfast, said, “When it does pass close to us on April 13, 2029, the Earth will deflect it and change its orbit. There is a small possibility that if it passes through a particular point in space, the so-called keyhole, the Earth’s gravity will change things so that when it comes back around again in 2036, it will collide with us.” The chance of Apophis passing through the keyhole, a 600-meter patch of space, is 1 in 5,500, based on current information.
There is no shortage of ideas on how to deflect asteroids. The Advanced Concepts Team at the European Space Agency has led the effort in designing a range of satellites and rockets to nudge asteroids that are on a collision course for Earth into a different orbit.
【小題1】The best title for this passage would be ___________.
A.Apophis Asteroid, a Possible Destroyer of Earth |
B.Apophis, a Good Name for Dangerous Asteroid |
C.Our Planet Will Be Ruined in 2036 |
D.Scientists Study Apophis Asteroid |
A.powerful | B.mysterious | C.boring | D.destructive |
A.destroy the quality of |
B.change the direction of |
C.measure the size of |
D.look into the truth of |
A.If Apophis hit the earth, its impact would be enormous. |
B.No way to deal with Apophis is available at present. |
C.Apophis is the first dangerous asteroid in recorded history. |
D.It is uncertain whether Apophis will hit the earth in 2036. |
A.An Egyptian myth about Apophis. |
B.NASA’s study on NEOs. |
C.How the keyhole influences Apophis. |
D.What methods can be used to deflect the asteroid. |
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科目:高中英語 來源: 題型:閱讀理解
Many cities have subways and underground public transportation to take locals and tourists alike rapidly around the city.However, there’s something different about riding a London subway.It may not look different, but the historical value of one of England’s most popular forms of transportation is enough to make riding the subway a must when visiting London.With a little under 100 different stations, the subway can take you almost anywhere you need to go.
Riding a London subway, a person from other countries will notice one major difference: in London, people do not look at each other.In fact, eye contact is avoided at all times.That’s not rudeness―people are just too busy to bother looking.
Busy doing what, you ask? Well, they’re certainly not using the time for a moment of quiet thinking.Nor are they reading a book.New technology has replaced quiet habits.Today the only acceptable form of book on the London underground is an e-book.
Apple must earn a fortune from London commuters(使用月票上下班者).Since the launch of the iPhone in 2007, over 40,000―yes, that’s 40,000 “apps” have been designed.
Commuters love them because they are the perfect time-fillers.One “app”, called iShoot, is a game that features tanks.Another one, Tube Exits, tells passengers where to sit on the train to be closest to the exit of their destination.iSteam clouds the iPhone screen when you breathe into the microphone.You can then write in the “steam” on your phone screen.
For those without an iPhone, another Apple product, the iPod, may be the distraction(消遣)of choice.It’s not just teenagers who “plug in” to their music-iPods are a popular way to pass the time for all ages.
And if games, e-books and music aren’t enough to keep you occupied, then perhaps you would prefer a film? The development of palm DVD technology means many commuters watch their favorite TV shows or films on the way to work.With all these distractions, it’s amazing that people still remember to get off the train.
【小題1】People in London do not make eye contact on the subway because ______.
A.they are going to work and have no time to communicate with each other |
B.they love reading books and do not want to be disturbed |
C.they feel sleepy because of getting up early |
D.they are busy playing games, reading e-books, listening to music or watching films |
A.computers | B.programs downloaded for the iPhone |
C.computer companies | D.fortune from London commuters |
A.iShoot | B.Tube Exits | C.iSteam | D.iPod |
A.London commuters are unfriendly to strangers |
B.Apple has earned a lot of money from selling 40,000 apps |
C.technology is changing how London commuters spend their traveling time |
D.riding a London subway is a must when visiting London |
A.praise | B.doubt | C.blame | D.state |
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