题目列表(包括答案和解析)
In some science fiction movies, evil robots refuse to die, no matter how hard people fight back.
Now science fiction has become science fact. For the first time, scientists have made a robot that can take a beating(挨打) and keep on going. Scientists from Cornell University made the robot, which looks like a spider with four legs.
Until now, even the most advanced(先进的) robot was almost certain to break down when it was damaged(毁坏). That is because its computer inside simply doesn’t know how to make the machine work after its shape has changed.
To deal with this problem, the scientists put eight motors(发动机) and two sensors(传感器) that read how the machine is working. They all give signals to the machine’s software. Using this information, the computer can then figure out the machine’s shape at any moment.
The new technology is a big advance in robot-making, scientists say, and it’s far from scary. It may someday help scientists create better artificial(假的) arms and legs and give new freedom to people who lose them. It might also help scientists understand how people and animals figure out their own sense of place in space.
“It has been difficult to design robots that can work well when the environment changes or when it’s damaged,” says Olaf Sporns of Indiana University in US. “With this work, we are nearer to solving this problem.”
【小题1】Why do robots easily break down when they are damaged?
| A．They cannot repair themselves. |
| B．The computer has changed a lot. |
| C．They have no computers inside. |
| D．The computer cannot work if the robot changes |
| A．do housework for humans |
| B．keep working after being damaged |
| C．remember a lot of information |
| D．tell people where it is |
| A．sensors | B．robots | C．arms and legs | D．scientists |
| A．They can replace the computer when it’s broken. |
| B．They can find out where the damage comes from. |
| C．They help the computer learn the robot’s condition. |
| D．They can send signals to the person who uses the robot. |
Last year in the UK at least 45 people died and 900 more were injured in car accidents where drivers were using their mobile phones．Yet many people continue to use them while driving even though it’s dangerous．
Research has shown that it is difficult to concentrate 0n driving and talking at the same time．It can even be more dangerous than driving after drinking too much．A recent study found that when drivers were talking on their mobile phones，their stopping times were 30 percent slower than when they had drunk too much—and nearly 50 percent slower than when they were driving normally．It also found that drivers talking on mobile phones were less able to control their cars than drunk drivers．
And talking isn’t even the most serious problem, texting is. Unbelievably, another recent study reported that 22％ of adults admitted they had sent a text message while driving at least once in the past month．An average text message takes 90 seconds to write and send．That means for one and a half minutes a driver is looking at their phone’s screen and not at the road．The arrival of new smart phones such as the iPhone will only make matters worse as they will allow users to do more things than ever before．
Using a mobile phone while driving puts others’ lives at risk．No matter how well we drive，if another driver is not being professional or careful，we are put in danger by their actions．Such drivers are selfish，careless and should have their driving licences(驾照)cancelled．
There is no doubt that mobile phones call be fun and are extremely useful，especially when you’re in trouble．But there is no need to use them while driving．Just wait until you stop or you will probably get into trouble of your own．
【小题1】The underlined word“'them”in paragraph 1 refers to .
| A．phone users | B．mobile phones | C．drivers | D．ears |
| A．12． | B．13． | C．14. | D．15． |
| A．drinking→talking on phone→texting |
| B．texting→talking on phone→drinking |
| C．talking on phone→texting→drinking |
| D． drinking→texting→talking on phone |
| A．It will take longer to send text messages． |
| B．People will want to talk on their phones more often． |
| C．There will be more things for people to do with their phones． |
| D．People think the new phones are easier and safer to use． |
| A．They should be put into prison． |
| B．Their cars should be taken away． |
| C．Their phones should be taken from them． |
| D．They should not be allowed to drive any longer． |
In some science fiction movies, evil robots refuse to die, no matter how hard people fight back.
Now science fiction has become science fact. For the first time, scientists have made a robot that can take a beating and keep on going. Scientists from Cornell University made the robot, which looks like a spider with four legs.
Until now, even the most advanced (先进的) robot was almost certain to break down when it was damaged (毁坏). That is because its computer inside simply doesn’t know how to make the machine work after its shape has changed.
To deal with this problem, the scientists put eight motors (发动机) and two sensors (传感器) that read how the machine is working. They all give signals to the machine’s software. Using this information, the computer can then figure out the machine’s shape at any moment.
The new technology is a big advance in robot-making, scientists say, and it’s far from scary. It may someday help scientists create better artificial (假的) arms and legs and give new freedom to people who lose them. It might also help scientists understand how people and animals figure out their own sense of place in space.
“It has been difficult to design robots that can work well when the environment changes or when it’s damaged,” says Olaf Sporns of Indiana University in US. “With this work, we are nearer to solving this problem.”
【小题1】Why do robots easily break down when they are damaged?
| A．They cannot repair themselves. |
| B．The computer has changed a lot. |
| C．They have no computers inside. |
| D．The computer cannot work if the robot changes. |
| A．keep working after being damaged |
| B．tell people where it is |
| C．do house work for humans |
| D．remember a lot of information |
| A．sensors | B．robots | C．scientists | D．arms and legs |
| A．They can replace the computer when it’s broken. |
| B．They help the computer learn the robot’s condition. |
| C．They can find out where the damage comes from. |
| D．They can send signals to the person who uses the robot. |
A young man went to the local expert(专家) on gems and said he wanted to become a gemologist(珠宝家). The expert turned him down because he feared the youth would not have the patience to learn. The young man asked for a chance. Finally, the expert told the youth, "Be here tomorrow."
The next morning the expert put a jade(玉) stone in the youth's hand and told him to hold it. The expert then went about his work, cutting, weighing and setting gems. The boy sat quietly and waited.
The following morning the expert again put the jade stone in the youth's hand and told him to hold it. On the third, fourth and fifth days, the expert asked the young man to do the same thing. On the sixth day, the youth held the jade stone but he could no longer stand(忍受) the silence. "Master, when am I going to learn something?" he asked.
"You will learn." the expert said and went about his business.
Several more days went by and the youth almost lost his patience. But one morning as the master put the stone in the youth's hand, the young man said without looking at his hand, "This is not the same jade stone!"
"You have begun to learn." said the master.
Practice makes perfect. The experience we learned from practice teaches us and develops our abilities. Experience is the best teacher. Even the most successful person had no absolute confidence once. It is experience that gives people confidence. The truth is: if you do the work and gain the experience, you'll have more confidence because you'll actually know what you're doing.
【小题1】The phrase "turned ... down" probably means _______.
| A．refused | B．accepted | C．forgave | D．doubted |
| A．brave | B．patient | C．clever | D．honest |
| A．An Experienced Gemologist |
| B．Experience, the Best Teacher |
| C．Experience of a Young Man |
| D．A Confident Teacher |
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【小题1】According to the advertisements, the four books are all intended for ______.
| A．teachers | B．adults | C．children | D．women |
| A．make them suitable to different readers | B．persuade readers to buy them |
| C．reduce the cost of them | D．help readers understand them |
| A．$130 | B．$65 | C．$112 | D．$18 |
| A．introduce some cheap books to readers | B．sell the four books to readers |
| C．enrich students’ knowledge about nature | D．help children to learn English |
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