If only it （)so cold, perhaps I, too, （)more initiative.A、had been,have shownB、have be

to their way of life. They still spend the winter in igloos, the round huts that are built of snow frozen hard. They still travel on sleds that are pulled by dogs. The winter is too cold for hunting, so during that season they live on the stores of seal meat that they have killed in the summer. But seal meat is not the only kind of food that they eat. In summer they hunt bears and reindeer, a type of deer With long branching horns that is used for its milk, meat and skin. They also fish all the year round. The Eskimos who are hunters in summer are fishermen in winter. In winter they make holes in the ice and catch their fish through the holes that they have made. The Eskimos are adaptable. That is why they are able to live in Arctic regions.

Which is the main topic of this passage？

A．Modem ideas are beginning to influence the Eskimos.

B．Why are the Eskimos able to live in Arctic regions？

C．The Eskimos are adaptable.

D．Eskimos' way of life has not changed very much.

【T14】

A. BETWEEN

B. IMITATE

C. ACCELERATE

D. OTHERWISE PHRASES: A. ENABLING THE BIRD TO【T13】______

B. IT【T14】______ COULD

C. WOULD BE DIFFICULT TO【T15】______

D. FROM【T16】______ ITS FEATHERS THE EMPEROR PENGUIN TRAPS AIR IN ITS FEATHERS. NOT ONLY DOES THIS INSULATE THE BIRD AGAINST EXTREME COLD BUT IT ALSO ENABLES IT TO MOVE TWO OR THREE TIMES FASTER THAN【T17】______ HOW？ MARINE BIOLOGISTS HAVE SUGGESTED THAT IT DOES SO BY RELEASING TINY AIR BUBBLES【T18】______ . AS THESE BUBBLES ARE RELEASED, THEY REDUCE FRICTION ON THE SURFACE OF THE PENGUIN"S WINGS,【T19】______ . INTERESTINGLY, ENGINEERS HAVE BEEN STUDYING WAYS TO MAKE SHIPS GO FASTER BY USING BUBBLES TO REDUCE FRICTION AGAINST THEIR HULLS(船身). HOWEVER, RESEARCHERS ACKNOWLEDGE THAT FURTHER INVESTIGATION IS CHALLENGING BECAUSE "THE COMPLEXITY OF PENGUIN"S WINGS【T20】______ ".

Passage Four

"We're more than halfway (中途) now; it's only two miles farther to the tavern (客栈) ," said the driver.

"I'm glad of that," answered the stranger, in a more sympathetic way. He meant to say more but the east wind blew clear down a man's throat if he tried to speak. The girl's voice was quite attractive; however, later he spoke again.

"You don't feel the cold so much at twenty below zero in the Western country. There isn't such damp chill (潮冷)", he said, and then it seemed as if he had blamed the uncomplaining young driver. She had not even said that it was a bad day, and he began to be conscious of a warm hopefulness of spirit, and sense of pleasant adventure under all the woolen scarves.

"You'll have a cold drive going back," he said anxiously, and put up his hand for the twentieth time to see if his coat collar was as close to the back of his neck as possible.

"I shall not have to go back!" cried the girl, with eager pleasantness. "I'm on my way home now. I drove over early just to meet you at the train. We had word that someone was coming to the tavern."

46. How far was the drive from the train to the tavern？

A. One mile.

B. About four miles.

C. Two miles.

D. Less than four miles.

Smart Window

Windows not only let light in to cut down an electricity use for lighting, but the light coming through the window also provides heat. However, windows are not something people typically associate with being a cutting edge technology. Researchers are now working on new technologies that enable a window to quickly change from clear to dark and anywhere in between with a flip of a switch.

"It took us a long time to figure out what a window really is," says Claes Granqvist. He's a professor of solid-state physics at Uppsala University in Sweden. "It's contact with the outside world. You have to have visual contact with the surrounding world to feel well. " So, windows and natural light are important for improving the way people feel when they're stuck indoors.

Yet, windows are the weak link in a building when it comes to energy and temperature control. In the winter, cold air leaks in. When it's hot and sunny, sunlight streams in. All of this sunlight carries lots of heat and energy. And all of this extra heat forces people to turn on their air conditioners. Producing blasts of cold air, which can feel so refreshing, actually suck up enormous amounts of electricity in buildings around the world.

Windows have been a major focus of energy research for a long time. Over the years, scientists have come up with a variety of strategies for coating, glazing, and layering windows to make them more energy efficient. Smart windows go a step further. They use chromogenic technologies which involve changes of color.

Electrochromic windows use electricity to change color. For example, a sheet of glass coated with thin layers of chemical compound such as tungsten oxide works a bit like a battery. Tungsten oxide is clear when an electric charge is applied and dark when the charge is removed, that is, when the amount of voltage is decreased, the window darkens until it's completely dark after all electricity is taken away. So applying a voltage determines whether the window looks clear or dark.

One important feature that makes a smart window so smart is that it has a sort of "memory. " All it takes is a small jolt of voltage to turn the window from one state to the other. Then, it stays that way. Transitions take anywhere from 10 seconds to a few minutes, depending on the size of the window. The development of smart windows could mean that massive air conditioning systems may no longer need. "In the future," Granqvist says, "our buildings may look different. "

Which of the following statements does not indicate the importance of windows as described in the first two paragraphs？

A．Windows can change from clear to dark to save energy.

B．Windows help to save energy by letting light in.

C．Windows help to save energy by providing heat.

D．Windows enable people to have contact with the outside world.

ing to kill us. Twenty-five years ago, tiffs was the only question about AIDS we couJd anwer with any certainty; now, it is the only question we really camaot answer well at all. By now, those of us in the AIDS business long term have cared for thousands of patients. No one with that kind of personal experience can doubt for a moment the deadly potential of H. I. V. or the life-saving capabilities of the drugs developed against it. But there are also now htmdreds of footnotes and exceptions and modifications to those two facts that make the big picture ever murkier (扑朔迷离). We have patients scattered at every possible point: men and women who cruise on their medications with no problems at all, and those who never become stable on them and die of AIDS; those who refuse them until it is too late, and those who never need them at all; those who leave AIDS far behind only to die from lung cancer or breast cancer or liver failure, and those few who are killed by the medications themelves. So, when we welcome a new patient into our world, one whose fated place in this world is still unclear, and that patient asks us, as most do, whether this illness is going to kill him or not, it often takes a bit of mental stammering (口吃 ) before we hazard an answer,Now, a complete rundown of all the news from the front would take hours. The statistics change almost; hourly as new treatments appear. It is all too cold, too mathematical, too scary to dump on the head of a sick, frightened person. So we simplify. "We have good treatments now, we say. "You should do fine. " Once, not so long ago, we were working in another universe.Now we have simply rejoined the carnival (嘉年华) of modern medicine, noisy and encouraging, confusing and contradictory, fueled by the eternal balancing of benefits and risks. You can.win big, and why shouldnt you, with the usual fall-safe combination of luck and money. You have our very best hopes, so step right up: we sell big miracles but, offer no guarantees. What does the author say about AIDS？

A.It is definitely deadly twenty-five years ago.

B.The patients want to know everything about it.

C.We can answer anything about it with certainty now.

D.We could not answer questions about it well before.

The Cold War continued for only a few years.()

The Cold War continued for only a few years.()

A. so cold day

B. such cold day

C. such a cold day

D. a day so cold

time.In return, I heard, "Why don' t you get a job？ Not to make me happy, but so that you h ve you own money and gain a bit more responsibility.So last year I a Job working about 25 hours a week.For 35 an hour, working as a salesman in a photo studio.

After I got this job, I had to do football, homework and job (1)It was really hard for me.I was burning out, falling asleep at school and failing in many courses.My teachers were made(2)me and ye led at me: why have a job？ I missed a lot of practice in football team and could only (3)back down at the match.My coach was cold at me with an unmasked question: why have a job？ I told them it was for the things I need, when actually it was for the things I wanted.Needing and wanting are different.Needing something is like your only shoes have holes in them.But wanting is to have every new brand sneaker just because you like it.I start to think about if I did a wrong thing.Slowly, I learnt to (4) wise decision (5)about what I need and what I want.(完型填空)

A.On

B.Manage

C.Sit

D.At

E.At the same time