A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.
“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.
They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.
While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.
Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”
(392 words)The difficulty the team of engineers met with while making the robotic fly was that __________.
| A．they had no model in their mind |
| B．they did not have sufficient time |
| C．they had no ready-made components |
| D．they could not assemble the components |
It can be inferred from paragraphs 3 and 4 that the robotic fly __________.
| A．consists of a flight device and a control system |
| B．can just fly in limited areas at the present time |
| C．can collect information from many sources |
| D．has been put into wide application |
Which of the following can be learned from the passage?
| A．The robotic flyer is designed to learn about insects. |
| B．Animals are not allowed in biological experiments. |
| C．There used to be few ways to study how insects fly. |
| D．Wood’s design can replace animals in some experiments. |
Which of the following might be the best title of the passage?
| A．Father of Robotic Fly |
| B．Inspiration from Engineering Science |
| C．Robotic Fly Imitates Real Life Insect |
| D．Harvard Breaks Through in Insect Study |
阅读理解（共20小题; 每小题2分,满分40分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。
I felt encouraged by his words and began to swim more calmly.But my clothes stuck to me like a heavy weight.I could hardly stay above the surface.
Counsel saw this.“Shall I cut them?”he asked.
With a knife he cut my clothes from top to bottom and took them of quickly while I swam for both of us.
Then I did the same for Counsel,and we continued to swim near each other.
But we were in serious trouble.The crew（船员）might not have noticed our disappearance.
And if they had,they could not return because the rudder（舵）had broken.Counsel thought of all this,and calmly made his plans.We decided to wait for the ship as long as possible,because we had no other hope of safety.I suggested that we save our strength so that both of us would not be tired out at the same time.This was how we did it:While one of us lay on his back,quite still,with arms crossed and legs stretched out（伸直）,the other would swim and push him along.We changed every ten minutes or so.In this way we could swim for hours,perhaps till daylight.The crash（破裂声）of the ship and the whale（鲸）had appeared at about eleven o’clock.We had about eight hours to swim before daylight.This seemed possible,if the sea remained calm.What happened to the man who told the story?
| A．He and his companion got into the water to test their strength. |
| B．He jumped into the water to save the broken rudder. |
| C．He was knocked into the water by his enemy. |
| D．He was thrown into the sea when the ship struck a whale. |
Why did the two men cut their clothes?
| A．Because no people helped them to take off their clothes. |
| B．Because they couldn’t take off their clothes on the sea. |
| C．Because they wanted to get rid of their clothes quickly. |
| D．Because they wanted to lifebuoys（救生圈）with their clothes. |
What does the word “still” in the last paragraph mean?
| A．not moving | B．even | C．yet | D．however |
n order to save their strength,______.
| A．one of them pushed the other while swimming and then they changed |
| B．they both swam calmly |
| C．they crossed their arms and stretched their legs on the water |
| D．they lay on their backs instead of swimming |
Which one of the following is true?
| A．Neither of the two men was good swimmers. |
| B．The sea was calm before eleven o’clock that night. |
| C．The story took place at night. |
| D．The two men had to swim eight hours to catch up with the ship. |
It is love that makes the world go round. And it is also love that has such power to overcome all difficulties. So we say: “Love will find a way.” As smile is a facial expression showing pleasure, affection, and friendliness, it is the commonest way to show our good will perfectly without saying anything. A Chinese saying runs: “never hit a person who is smiling at you.” It is a time-proven fact that the smile is a language all its own— a universal language—understood by the people of every nation in the world. We may not speak the same tongue as our foreign neighbors, but we smile in the same tongue. We need no interpreter for thus expressing love, happiness, or good will.
One day while shopping in a small town in southern California, it was my misfortune to be approached by a clerk whose personality contradicted mine. He seemed most unfriendly and not at all concerned about my intended purchase. I bought nothing, and marched angrily out of the store. My anger toward that grew with each step. Outside, standing at the corner, was a dark-complexion young man in his early twenties. His expressive brown eyes met and held mine, and in the next instant a beautiful, dazzling smile covered his face. I gave in immediately. The magnetic power of that shining smile drove away all bitterness within me, and I found the muscles in my own face happily responding. “Beautiful day, isn’t it?” I remarked, in passing. The, suddenly something inside me sent me turning back. “I really owe you a debt of gratitude,” I said softly. His smile deepened, but he made no attempt to answer. A Mexican woman and two men were standing nearby. The woman stepped forward and eyed me inquiringly. “Carlos, he no speak English,” she volunteered. “You want I should tell him something?” In that moment I felt transformed. Carlos’ smile had made a big person of me. My friendliness and good will to ward all mankind stood ten feet tall. “Yes,” my reply was enthusiastic and sincere, “tell him I said ‘Thank you!’” “Thank you?” The woman seemed slightly puzzled. I gave her arm a friendly pat as I turned to leave. “Just tell him 
that,” I insisted. “He’ll understand. I am sure!” Oh, what a smile can do! Although I have never seen that young man again, I shall never forget the lesson he taught me that morning.
From that day on, I became smile – conscious, and I practice the diligently, anywhere and everywhere, with everybody. When I got excited in traffic, taking the right – of – way (公路用地) from the other car with my stupid mistake, I’d smile and shrug my shoulders apologetically. This action on my part would always draw a good – natured smile in return. If the other fellow was at fault – and if I could remember my resolution in time! – he’d get a broad smile of understanding. This took a bit of doing at first. I’ll admit it wasn’t always easy, but it was fun. The results were sometimes amazing. Many times, a broad, friendly smile would completely turn aside ill – feeling and tension. I’m wondering now how many tragic add dents could be avoided on our overcrowded highways, if every driver remembered to smile!The author got angry while shopping one day because .
| A．of the clerk’s unfriendliness and lack of concern |
| B．of her misfortune |
| C．she failed to purchase what she intended |
| D．a dark – complexion young man laughed at her |
From the conversation between the author and the Mexican woman, we can infer that the woman .
| A．was well – educated but unwilling to help others |
| B．was able to speak English |
| C．knew some English and was ready to help others |
| D．was familiar with the young man |
In the author’s opinion, if all people remembered to smile when driving, .
| A．many traffic accidents could be avoided |
| B．they would receive a good natural smile in return |
| C．they could get a broad smile of understanding |
| D．they wouldn’t feel any tension |
The best title for this passage could be .
| A．The Art of Smiling | B．The Universal Language |
| C．The Power of Love | D．The Magic Power of Friendship |
Beijing — Premier Wen Jiabao has urged the leadership of all countries to deepen their political will in dealing with climate change woes (灾难) as uncertainties mount (增长) in the months before the United Nation’s conference in Cancun, Mexico, at the end of this year.
Wen made the remarks on Friday when he met with nearly 20 politicians, climate change and environmental ministers worldwide, who are in Beijing this weekend to attend an international forum on green economy and climate change.
Based on the achievements made at the Copenhagen Summit last December, Wen urged the rich countries to further make clear their compulsory carbon reduction targets. “At the same time, we developing countries should make clear our voluntary goal of slowing down climate change,” Wen said.
Wen also urged the developed countries to transfer（转让）climate change friendly technologies to the developing countries, especially the poorest countries and island nations.
During the meeting, Wen said China will redouble its efforts in reducing carbon emissions and improving energy efficiency during the coming years after it finishes its 2006-2010 goal of cutting energy consumption per unit of economic output by 20 percent.
While praising China for its green efforts, former Australian Prime Minister Robert J. Lee Hawke asked China to share its experiences and lessons on energy savings and pollution reduction to the rest of the world to deal with global environmental woes and climate change.
Wen responded: “China, together with the rest of the world, is willing to make its due contribution in coping with global warming and climate change.”
At a banquet for the foreign guests on Friday night, former vice-premier Zeng Peiyan said “Increasing uncertainties are ahead for the climate change negotiations. The world needs more dialogue and cooperation”.
“Climate change woes are our shared challenges but the root lies in the historical emissions by the developed countries,” said Zeng, as president of the China Center for International Economic Exchanges, which organized the weekend climate change summit.
Zeng expected the forum to work as a platform for different countries to communicate their positions freely before the Bonn climate change negotiation in June and the Cancun conference at the end of this year.Which title suits this passage best?
| A．We must work on climate change. |
| B．We should share our ‘green’ technology. |
| C．We need to clarify our action targets. |
| D．We ought to cooperate to control the climate. |
The underlined part in the last paragraph but one implies ________.
| A．Air pollution just existed in the developed countries in the past. |
| B．In the past, the developed countries slowed down the development of the world. |
| C．Climate change woes were originally caused by the developed countries. |
| D．The rich countries should be more responsible since they polluted most. |
It can be inferred from the passage that _________.
| A．The Chinese government intends to be regarded as a developed country. |
| B．The whole world has got the same opinion about the measures to take. |
| C．The developed countries have not found any effective ways to cut their emissions. |
| D．There is still a long way to go before an agreement can be reached. |
Why did Wen Jiabao urge the developed countries to clarify their carbon reduction targets?
| A．Because the developed countries are not willing to deal with global environmental woes. |
| B．Because the developing countries have not set any goal of slowing down climate change. |
| C．Because there are mounting uncertainties ahead for the climate change negotiations. |
| D．Because agreements were already made at the Copenhagen Summit last December. |
In a surprising discovery about where higher life can survive, scientists have found a shrimp —— like creature and a jellyfish swimming beneath an Antarctic ice sheet.
About 180 meters below the ice where no light can get through, scientists had thought nothing much more than a few microbes (微生物) could exist.
That’s why a NASA team was surprised when they lowered a video camera to get the first long look at the underbelly of an ice sheet in Antarctica. A curious shrimp – like creature came swimming by and then parked itself on the camera’s cable. Scientists also pulled up a tentacle (触须) they believe came from a jellyfish.
“We were operating on the presumption that nothing’s there.” Said NASA ice scientist Robert Bindschadler. “It was a shrimp you’d enjoy having on your plate.”
“We were just gaga (狂热的) over it,” he said of the 7.5cm long, orange creature starring in their two – minute video. Technically, it’s not a shrimp. It’s a Lyssianasid amphipod, which is distantly related to the shrimp.
The video is likely to inspire experts to rethink what they know about life in harsh environments. And it has scientists thinking that if shrimp – like creatures can live below 180 meters of Antarctic ice in freezing dark water, what about other cold places? What about Europa, a frozen moon of Jupiter?
Cynan Ellis – Evans, a scientist of the British Antarctic Survey called the finding fascinating. He said it was possible the creatures swam in from far away and don’t live there permanently.
But Kim, who is a co-author of the study, doubts it. “The site in West Antarctica is at least 19 km from open seas. Bindschadler drilled a 20 cm – wide hole and was looking at a tiny amount of water. That means it’s unlikely that two creatures swam from great distances and were captured randomly in that small of an area,” she said.
Yet scientist were puzzled at what the food source would be for these creatures. While some microbes can make their own food out of chemicals in the ocean, complex life like the shrimp can’t, Kim said.
“So how do they survive? That’s the key question.” Kim Sai.
“It’s pretty amazing when you find a huge puzzle like that on a planet where we thought we know everything.” Kim said. What does the underlined word “harsh” probably mean?
| A．cold | B．loud | C．cruel | D．ugly |
According to Kim, the shrimp – like creature .
| A．swam great distances to Antarctic | B．has always lived in the region |
| C．gradually evolved from shrimps | D．has nothing in common with shrimps |
The finding is significant in that .
| A．it marks NASA’S first Antarctic biological study |
| B．it proves there is marine life in the Antarctic |
| C．it could inspire further study of life in harsh environments |
| D．it shows that Lyssianasid amphipod is closely related to shrimps |
Which of the following statements about the discovery is FALSE?
| A．Complex life usually lives on other forms of life. |
| B．Scientists saw two creatures in the two – minute video. |
| C．It is possible for creatures to live 180 meters below the ice though there is no light. |
| D．Scientists captured the shrimp – like creature in a camera by drilling a hole through the ice. |
How many days will the two jazz masters perform in Hong Kong?
| A．2 days. | B．3 days. | C．4 days. | D．5 days. |
You can get a ticket except that ______.
| A．you go and buy one at the ticket office | B．you book online |
| C．you call and pay with your credit card | D．you wait to get one for free |
Why will the two jazz masters perform in Hong Kong?
| A．Because they meet in there after not seeing each other for 40 years. |
| B．It’s for Hong Kong Arts Festival. |
| C．Because they can’t live without music. |
| D．It just happens that they two are performing there. |
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