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ScienceDaily (May 28, 2010) --- Researchers at Oregon State University (OSU) have made important progress in work that should lead toward robots that can not only walk and run very well, but use little energy at the same time.
Studies are moving closer to designing robots that could do dangerous work, create prosthetic limbs（假肢）for humans that work much better than in the past, or even help some people who use wheelchairs to get “walking” abilities.
“Researchers have been working toward robot movement for a long time,” said Jonathan Hurst, a professor at OSU. “What we’ve done is to study what behavior is really possible for a robot.”
The movement of humans and other animals is difficult to copy. Using little energy, they can move easily over hard areas, and enjoy balance from muscles（肌肉）. They have different ways to deal with forces, such as holding something hard in place rigidly（牢牢地）, like the act of holding a cup of coffee level during a car ride. In their recent studies, the OSU researchers proved that these two abilities are mutually exclusive（相互排斥的）. Humans deal with this problem by using pairs of muscles. For a robot, the more it’s able to do one of these tasks, the less able it is to do the other.
Presently, robots that can walk and run must be as rigid as possible while walking. But this way uses a lot of energy. The OSU researchers are working toward something that has similar or better performance, but uses far less energy, and is closer to the abilities of animals.
“So there’s no reason why we shouldn’t be able to build robots with good movement ability,” Hurst said. “Clearly this might be useful in highly dangerous situations. But I could also see great improvements possible with prosthetic limbs that work much better than present technology. ”
72. The robots being studied by researchers at OSU ______.
A. are successful now
B. use little energy
C. do better than before
D. can run faster than humans
73. Which of the following have researchers been studying all the time?
A. The robots’ movement
B. The robots’ weight
C. The robots’ sizes
D. The robots’ walking speed
74. The underlined words “two abilities” in Para.4 refer to ______.
A. walking and running
B. walking and holding
C. moving and using little energy
D. moving and balancing
75. According to Jonathan Hurst, we know that robots with good movement ability ______.
A. can be used in medical science
B. are only used in highly dangerous situations
C. will hardly be created in the future
D. will have a bad influence on man
查看习题详情和答案>>ScienceDaily (May 28, 2010) --- Researchers at Oregon State University (OSU) have made important progress in work that should lead toward robots that can not only walk and run very well, but use little energy at the same time.
Studies are moving closer to designing robots that could do dangerous work, create prosthetic limbs（假肢）for humans that work much better than in the past, or even help some people who use wheelchairs to get “walking” abilities.
“Researchers have been working toward robot movement for a long time,” said Jonathan Hurst, a professor at OSU. “What we’ve done is to study what behavior is really possible for a robot.”
The movement of humans and other animals is difficult to copy. Using little energy, they can move easily over hard areas, and enjoy balance from muscles（肌肉）. They have different ways to deal with forces, such as holding something hard in place rigidly（牢牢地）, like the act of holding a cup of coffee level during a car ride. In their recent studies, the OSU researchers proved that these two abilities are mutually exclusive（相互排斥的）. Humans deal with this problem by using pairs of muscles. For a robot, the more it’s able to do one of these tasks, the less able it is to do the other.
Presently, robots that can walk and run must be as rigid as possible while walking. But this way uses a lot of energy. The OSU researchers are working toward something that has similar or better performance, but uses far less energy, and is closer to the abilities of animals.
“So there’s no reason why we shouldn’t be able to build robots with good movement ability,” Hurst said. “Clearly this might be useful in highly dangerous situations. But I could also see great improvements possible with prosthetic limbs that work much better than present technology. ”
72. 1.The robots being studied by researchers at OSU ______.
A. are successful now
B. use little energy
C. do better than before
D. can run faster than humans
73. 2.Which of the following have researchers been studying all the time?
A. The robots’ movement
B. The robots’ weight
C. The robots’ sizes
D. The robots’ walking speed
74. 3.The underlined words “two abilities” in Para.4 refer to ______.
A. walking and running
B. walking and holding
C. moving and using little energy
D. moving and balancing
75. 4.According to Jonathan Hurst, we know that robots with good movement ability ______.
A. can be used in medical science
B. are only used in highly dangerous situations
C. will hardly be created in the future
D. will have a bad influence on man
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Some suggestions about learning English!
We may all have heard about the old saying that interest leads one towards success. According to this saying, we’d better develop our interest in English at the very beginning of our study. To develop interest in your English study is not very hard. We may have the feeling of satisfaction and achievement from our English study when we find that we are able to say something not very complicated in English, or talk with foreigners in English.
We will be amazed that the foreigners can understand our English and say “you speak good English”…
Plans are always very essential, so we must make some elaborate and workable (feasible) plans before we study. For example, you can plan to learn 20 new words every day. Once the plans are made, we should carry out these plans to the letter. Remember: Plans are essential, but those unattainable(不能实现的) plans will make you feel frustrated!
Taking notes is one important technique in studying. Good memory can not replace the function of notes. Notes should be taken whenever we study. As we know, notes are the summarization, the core content, or our understanding of the books that we read. It would be easier for us to remember the content by referring to our notes, which may be thinner than our books. Sometimes it would be useful to draw some tables, diagrams or illustrations that are very impressive, visual and concise. All these can help us in memorizing the content that we learn.
Watching English movies, English TV programs, listening to English songs and learn English on some special occasions are also excellent ways in learning English, as we may relate English to certain scenes so as to deepen our memory.
Once again for the learning of vocabulary: never just memorize single English words. If you only remember certain words, you still don't quite understand their proper usage. Therefore, it is imperative that you learn by heart the whole sentences and the phrases that contain the new words so that we can know how to use the words in a proper way.
1．At the beginning of English study, we should .
A．learn English grammar. B．develop our good habit of learning
C．develop our interest in learning English D．remember many English words
2．The underlined phrase “to the letter”in the second paragraph might mean .
A．strictly B．loosely C．partly D．narrowly
3．Which statement of the following on notes in true according to the passage?
A．Good memory can take the place of the function of notes.
B．Notes may be thicker than the book we read.
C．Taking notes is a waste of time in studying.
D．Notes can help us in memorizing the content that we learn.
4．Which is the best way in learning English words?
A．Remember the single English words.
B．Understand the meaning of the whole sentences and phrases in which there are new words and recite them.
C．Memorize the new words’ meaning in the dictionary.
D．Write the new words three times.
查看习题详情和答案>>第二节 完形填空(共20小题，每小题1.5分，满分30分)
阅读下面短文，掌握大意，然后从36－55各小题所给四个选项(A、B、C、D)中，选出最佳选项，并在答题卡上将该项涂黑。
Not long ago, someone asked the dad of a young pop star what his son would have done if he hadn’t become a singer. The father said he had 36 considered anything else. This was his Plan A. There had been no Plan B. I 37 this to my son Marty, who was studying musical theater at college,when he was thinking about a second 38 in business or teaching.
“Just study what you’re interested in ,” I said.
“But what if I can’t 39 it?” he asked.
“It’ll still be worth it.” I answered.
My friends think I’m 40 . They’ve advised their own children to 41 something they think will bring them financial rewards, ___42 they don’t love it. “Times are hard: get your son into something that can 43 a good job.” A friend told me.
Of course I understand their 44 , and want to protect my son. But why should he 45
his “best years” studying things that hardly hold his 46 ? Is that really a wise use of his
47 ? I think fear leads nowhere, while enthusiasm can lead anywhere.
The wisest parents are the ones who 48 their children toward the things that already interest them. It’s 49 that sometimes such parents will feel afraid. When Marty stepped into the extraordinarily 50 field of performance, I was worried about his future. Yet I have watched him grow. I have witnessed the 51 he has made to run after his dream, and how much he has enjoyed the 52 .
It may be that my son will 53 because of dreaming big. But I believe that seeking one’s own dream is one’s only real chance of happiness. I’d rather he 54 than hung back.（退缩）.
As he 55 his choices, my best advice to him is: Risk everything. Plan B, C, D and E will always be there. Grasp Plan A.
36. A. still B.never C. ever D. yet
37. A. refused B. promised C. mentioned D. complained
38. A. major B. career C. experiment D. skill
39. A.try B. finish C. make D. seize
40. A. considerate B. wise C. unusual D. crazy
41. A. absorb B.seek C. realize D.overcome
42. A.as if B. in case C. even if D. now that
43. A. refer to B. lead to C. belong to D. adapt to
44. A.concern B. humor C.judgement D. favor
45. A. keep B. offer C. spend D. take
46. A. opinion B.interest C. personality D. identity
47. A. energy B. money C. time D. mind
48. A.direct B. follow C. signal D. command
49. A.impossible B.certain C. embarrassing D. rough
50. A.magical B. competitive C. traditional D.fantastic
51. A. effort B.appointment C. decision D. effect
52. A. experiment B.process C. course D.practice
53. A. operate B. suffer C. enjoy D. perform
54. A. went ahead B. sped up C.look forward D. started over
55. A. designs B.rejects C. evaluates D. weighs
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