Once, a circle lost a piece of its own. The circle wanted to be whole, so it went around looking for its missing piece. But it was incomplete, so it could only roll very slowly. It enjoyed the flowers and the sunshine along the way. It talked with worms. It found lots of different pieces, but none of them fit. So it left them all by the side of the road and kept on looking for the missing piece.
Then one day the circle found a piece that fit perfectly. The circle put the missing piece into itself. It could be whole with nothing missing. It was so happy and began to roll. Now that it was a perfect circle, it could roll very fast, too fast to see flowers or talk to worms. It realized how different the world was when it rolled so quickly. It felt so sad that it stopped, left its found piece by the side of the road and rolled away slowly.
Sometimes we are perfect when we lose something. A man who has everything is a poor man in some ways. He will never have hopes, dreams or something better. He will never know someone loves him or someone is giving him something he has always wanted or never had.
We couldn’t be perfect, but we must be brave enough to love, strong enough to forgive, kind enough to share happiness with others and clever enough to know there is enough love around us and then we can always live a wonderful time in our lives.
【小题1】
The circle rolled very slowly because it .
【小题2】
Why did the circle stop when it rolled quickly? Because it .
【小题3】
The story mainly tells us that .
Then one day the circle found a piece that fit perfectly. The circle put the missing piece into itself. It could be whole with nothing missing. It was so happy and began to roll. Now that it was a perfect circle, it could roll very fast, too fast to see flowers or talk to worms. It realized how different the world was when it rolled so quickly. It felt so sad that it stopped, left its found piece by the side of the road and rolled away slowly.
Sometimes we are perfect when we lose something. A man who has everything is a poor man in some ways. He will never have hopes, dreams or something better. He will never know someone loves him or someone is giving him something he has always wanted or never had.
We couldn’t be perfect, but we must be brave enough to love, strong enough to forgive, kind enough to share happiness with others and clever enough to know there is enough love around us and then we can always live a wonderful time in our lives.
【小题1】
The circle rolled very slowly because it .
| A．spent much time talking to worms | B．wanted to enjoy the sunshine |
| C．was looking for its missing piece | D．lost a piece of its own |
Why did the circle stop when it rolled quickly? Because it .
| A．wanted to enjoy the world | B．found a different world |
| C．wanted to look for another missing piece | D．thought the world changed so quickly |
The story mainly tells us that .
| A．nobody loves us if we give nothing |
| B．a man who has everything is the happiest |
| C．losing something may not be a bad thing sometimes |
| D．we are not whole when we lose something |
When Christie Andrews was born, she weighed less that half of one kilogram. Her heart was the size of a large coin. Her mother said Christie was so small that she could hold her in the palm of one hand.
Christie couldn’t breathe without a machine to give her oxygen. If she had been born 20 years earlier, she would probably have died at once. She needed two operations, but she survived without serious damage.
Twenty years ago , 90% of all premature(早产) babies died. Today, doctors manage to save four out of every five, because they have better machines for breathing and better ways to feed the babies.
But saving Christie’s life cost more than $ 400,000. In some cases, doctors spend 1 million dollars saving a single child. The parents usually don’t have enough money to pay. The government, an insurance company or the hospital picks up the bill. Even after a baby goes home from the hospital, it may require medical care.
Some people think it makes more sense to spend money saving 10 adults who have cancer or other diseases than saving one small baby. But nobody wants to be the doctor who has to tell parents to their faces, “Sorry, I won’t save your new child.”
【小题1】 Parents don’t pay their babies’ hospital bills because .
【小题2】The true cost of saving a baby may be even more than 1 million because .
【小题3】From the story we know that saving a cancer patient .
【小题4】The main idea of the article is .
Christie couldn’t breathe without a machine to give her oxygen. If she had been born 20 years earlier, she would probably have died at once. She needed two operations, but she survived without serious damage.
Twenty years ago , 90% of all premature(早产) babies died. Today, doctors manage to save four out of every five, because they have better machines for breathing and better ways to feed the babies.
But saving Christie’s life cost more than $ 400,000. In some cases, doctors spend 1 million dollars saving a single child. The parents usually don’t have enough money to pay. The government, an insurance company or the hospital picks up the bill. Even after a baby goes home from the hospital, it may require medical care.
Some people think it makes more sense to spend money saving 10 adults who have cancer or other diseases than saving one small baby. But nobody wants to be the doctor who has to tell parents to their faces, “Sorry, I won’t save your new child.”
【小题1】 Parents don’t pay their babies’ hospital bills because .
| A．they don’t have enough money |
| B．they would rather save cancer patients |
| C．doctors don’t care if the babies die |
| D．it makes more sense to have a bigger baby |
| A．oxygen machine are expensive |
| B．the baby may require medical care after it leaves the hospital |
| C．doctors always charge more than they should |
| D．four out of five premature babies can now be saved |
| A．is easier than saving a baby | B．is harder than saving a baby |
| C．is cheaper than saving a baby | D．is more common than saving a baby |
| A．doctors must never decide whether to save babies or cancer patients |
| B．doctors are able to save premature babies, but the cost is very high |
| C．having a premature baby was cheaper and safer 20 years ago |
| D．Christie survived because the hospital paid her bills |
Scientists are placing robotic dogs in the homes of lonely old people to test whether they can improve the quality of life for humans. Alan Beck, an expert(专家) in human-animal relationship, and Nancy Edwards, a professor of nursing, are leading the animal-assisted study on the effect of robotic dogs on old people’s depression (沮丧) , physical activity, and life satisfaction.
In the study, the robot, called AIBO, is placed for six weeks in the houses of some old people who live alone. Before placing AIBO in the home, scientists will collect baseline data(数据) for six weeks. These old people will keep a diary to note their feelings and activity before and after AIBO. Then, the scientists will review the data to test if it has produced any changes in the life of its owner.
“I talk to him all the time, and he responds to my voice,” says a seventy-year-old lady. “When I’m watching TV, he’ll stay in my arms until he wants down. He has his own mind.”
The AIBOs respond to certain orders. The scientists say they have some advantages over live dogs, especially for old people. Often the elderly are disabled and cannot care for an animal by walking it or playing with it. A robotic dog removes exercise and feeding concerns.
“At the beginning, it was believed that no one would relate(与……相关) to the robotic dog, because it was metal and not furry.” Beck says. “Hopefully, down the road, these robotic pets could become a more-valuable health helper. They will record their masters’ blood pressure, oxygen levels or heart rhythms(心律). AIBOs may even one day have games that can help stimulate(刺激) older people’s minds.”
【小题1】The purpose of Beck and Edwards’ study is to _____________.
【小题2】 In the research, the old people are asked to _____________.
【小题3】What does the underlined word “removes” mean?
【小题4】What is the better point of AIBO than live dogs?
【小题5】The writer seems to suggest that the future robotic dogs may__________.
In the study, the robot, called AIBO, is placed for six weeks in the houses of some old people who live alone. Before placing AIBO in the home, scientists will collect baseline data(数据) for six weeks. These old people will keep a diary to note their feelings and activity before and after AIBO. Then, the scientists will review the data to test if it has produced any changes in the life of its owner.
“I talk to him all the time, and he responds to my voice,” says a seventy-year-old lady. “When I’m watching TV, he’ll stay in my arms until he wants down. He has his own mind.”
The AIBOs respond to certain orders. The scientists say they have some advantages over live dogs, especially for old people. Often the elderly are disabled and cannot care for an animal by walking it or playing with it. A robotic dog removes exercise and feeding concerns.
“At the beginning, it was believed that no one would relate(与……相关) to the robotic dog, because it was metal and not furry.” Beck says. “Hopefully, down the road, these robotic pets could become a more-valuable health helper. They will record their masters’ blood pressure, oxygen levels or heart rhythms(心律). AIBOs may even one day have games that can help stimulate(刺激) older people’s minds.”
【小题1】The purpose of Beck and Edwards’ study is to _____________.
| A．understand human-animal relationship |
| B．make lonely old people’s life better |
| C．find the causes of old people’s loneliness |
| D．improve the animal-assisted research |
| A．note the activities of AIBOs |
| B．keep AIBOs at home for 12 weeks |
| C．record their feelings and activity |
| D．study the collected information |
| A．moves again | B．is movable | C．doesn’t need | D．need |
| A．It is easier to keep at home. |
| B．It can help the disabled people. |
| C．It responds to all the human orders. |
| D．It can watch TV with its owner. |
| A．cure certain diseases | B．keep old people active |
| C．change people’s ideas | D．look more like real dogs |
在物理学发展的过程中，许多物理学家的科学发现推动了人类历史的进步。以下叙述中，正确的说法是
| A．哥白尼创立地心说 |
| B．相对论的创立表明经典物理学已不再适用 |
| C．卡文迪许建立了行星运动定律 |
| D．牛顿总结出牛顿运动定律和万有引力定律，建立完整的经典力学体系 |
下图中四幅图片涉及物理学史上的四个重大发现，其中说法不正确的有（ ）
| A．卡文迪许通过扭秤实验，测定出了万有引力恒量 |
| B．奥斯特通过实验研究，发现了电流周围存在磁场 |
| C．法拉第通过实验研究，总结出法拉第电磁感应定律 |
| D．牛顿根据理想斜面实验，提出力不是维持物体运动的原因 |
关于科学家和他们的贡献，下列说法中正确的是
| A．安培首先发现了电流的磁效应 |
| B．伽利略认为自由落体运动是速度随位移均匀变化的运动 |
| C．牛顿发现了万有引力定律，并计算出太阳与地球间引力的大小 |
| D．法拉第提出了电场的观点，说明处于电场中电荷所受到的力是电场给予的 |
关于科学家和他们的贡献，下列说法正确的是 （ ）
0 23270 23278 23284 23288 23294 23296 23300 23306 23308 23314 23320 23324 23326 23330 23336 23338 23344 23348 23350 23354 23356 23360 23362 23364 23365 23366 23368 23369 23370 23372 23374 23378 23380 23384 23386 23390 23396 23398 23404 23408 23410 23414 23420 23426 23428 23434 23438 23440 23446 23450 23456 23464 159627
| A．楞次首先发现了电磁感应现象 |
| B．安培首先发现电流周围存在磁场 |
| C．库仑利用组秤装置，发现了点电荷间的作用力与电荷间距离的平方成反比 |
| D．法拉第提出电荷周围存在“场”，并创造性地用“电力线（即电场线）”形象地描述电场 |