题目列表(包括答案和解析)
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Ask Dr ? Jeffers |
This month Dr. Jeffers is answering questions about the human brain and how it works. |
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Dear Dr. Jeffers, One of my colleagues, Felix Moeller, told me that scientists are learning to use computer to ‘read minds’. Is there any truth to this story/ —Jane Leon, New York, USA Dear Ms. Leon, Well, a lot of research is being conducted in this area, but so far, the brain scanning equipment and corresponding computer programs haven’t been able to actually read thoughts. In one experiment, test subjects（受试者）were connected to scanning equipment and shown two numbers on a screen. They were then asked to choose between adding or subtracting（减）the two numbers. Using this method, researchers were able to follow brain processes and make the correct assumptions（假设）70 percent of the time. It’s not quite mind reading, but it’s certainly a first step. —Dr. J. |
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Dear Dr. Jeffers, My three-year-old son loves it when I dig my fingers into his sides and tickle （胳肢）him until he laughs uncontrollably. The other day I noticed him trying to tickle himself but he couldn’t do it. Why not? —Glenn Lewis, Vancouver, Canada Dear Mr. Lewis, It’s because of how the brain works. The brain is trained to know what to pay attention to and what to ignore. It causes us to ignore physical feelings we expect to happen, but it causes a mild panic reaction when there is an unexpected feeling. For example, you don’t notice how your shoulder feels while you’re walking down the street. But if someone comes up behind you and touches you lightly on the shoulder, you may jump in fear. It’s that unexpected part that causes the tickle reaction. —Dr. J. |
1.What can we learn from the answer to the first question?
A. Some equipment is able to read human minds.
B. Some progress has been made in mind reading.
C. Test subjects have been used to make decisions.
D. Computer programs can copy brain processes.
2.People laugh when tickled by others because the feeling is _______.
A. unexpected B. expected C. comfortable D. uncomfortable
3.Who has got a little child according to the text?
A. Ms. Leon B. Mr. Lewis C. Mr. Moeller D. Dr. Jeffers
4.According to the text, Jeffers is probably _______.
A. a computer programmer B. a test subject
C. a human brain expert D. a medical doctor
An Australian researcher is urging parents to load up their teenager’s backpack and make them walk to school.
Professor Leon Straker says students who walk or cycle to school are less likely to have back and neck pain. But the study of 1,202 Western Australian 14yearold found that 72% of students travelled to school by car or bus. Straker says the study suggests walking or cycling while carrying a schoolbag helps improve trunk (躯干) and spinal (脊柱的) muscle strength.
This helps reduce back pain because greater muscle strength improves support for the back during load carrying .Despite advocating that parents get their children moving，Straker warns bag load should not exceed (超过) 15% of body weight.
Straker says the study also stresses that neck pain is as common as back pain among young teenagers. This is an area that has been largely ignored，he says，but can be an important indicator of neck pain into adulthood.
For the study，students were asked a series of questions such as how long they carried their bags for，how they carried their schoolbags，the method of travel，and their perceptions(感觉) about the bag’s weight.
Straker says about half of all participants experienced back and neck pain，with slightly more females reporting neck pain. However，the gender (性别) difference may also be due to the fact that females have lower pain tolerance.
Studies from the 1980s found carrying a bag over one shoulder was most common among teenagers. However in this study 85% of participants carried their bag over both shoulders.
Straker believes the change has been driven partly through education campaigns，but also by increasing fashion status of backpacks and improved design.
1.In the opinion of Leon Straker，parents should________.
A．reduce the load of their children’s schoolbags
B．put more books in their children’s schoolbags
C．get their children’s schoolbags ready for school
D．ask their children to walk to school carrying schoolbags
2.If a child weighs 40 kilograms，the weight of his schoolbag should be________.
A．no more than 15 kg
B．less than 6 kg
C．as heavy as 9 kg
D．more than 6 kg
3.We can learn from the passage that________.
A．most of the students in Australia walk to school
B．neck pain is uncommon among young teenagers
C．walking while carrying a backpack helps reduce back pain
D．males are more likely to experience back pain than females
4.According to the passage，what change has taken place since the 1980s?
A．How students carry their schoolbags.
B．How heavy students’ schoolbags are.
C．How students go to school every day.
D．How long students carry their schoolbags for.
(10·陕西A篇)
A
| Ask Dr ? Jeffers | This month Dr. Jeffers is answering questions about the human brain and how it works. |
| Dear Dr. Jeffers, One of my colleagues, Felix Moeller, told me that scientists are learning to use computer to ‘read minds’. Is there any truth to this story/ —Jane Leon, New York, USA Dear Ms. Leon, Well, a lot of research is being conducted in this area, but so far, the brain scanning equipment and corresponding computer programs haven’t been able to actually read thoughts. In one experiment, test subjects（受试者）were connected to scanning equipment and shown two numbers on a screen. They were then asked to choose between adding or subtracting（减）the two numbers. Using this method, researchers were able to follow brain processes and make the correct assumptions（假设）70 percent of the time. It’s not quite mind reading, but it’s certainly a first step. —Dr. J. | |
| Dear Dr. Jeffers, My three-year-old son loves it when I dig my fingers into his sides and tickle （胳肢）him until he laughs uncontrollably. The other day I noticed him trying to tickle himself but he couldn’t do it. Why not? —Glenn Lewis, Vancouver, Canada Dear Mr. Lewis, It’s because of how the brain works. The brain is trained to know what to pay attention to and what to ignore. It causes us to ignore physical feelings we expect to happen, but it causes a mild panic reaction when there is an unexpected feeling. For example, you don’t notice how your shoulder feels while you’re walking down the street. But if someone comes up behind you and touches you lightly on the shoulder, you may jump in fear. It’s that unexpected part that causes the tickle reaction. —Dr. J. | |
46. What can we learn from the answer to the first question?
A. Some equipment is able to read human minds.
B. Some progress has been made in mind reading.
C. Test subjects have been used to make decisions.
D. Computer programs can copy brain processes.
47. People laugh when tickled by others because the feeling is _______.
A. unexpected B. expected C. comfortable D. uncomfortable
48. Who has got a little child according to the text?
A. Ms. Leon B. Mr. Lewis C. Mr. Moeller D. Dr. Jeffers
49. According to the text, Jeffers is probably _______.
A. a computer programmer B. a test subject
C. a human brain expert D. a medical doctor
第二部分 阅读理解（共两节，满分40分）
（共15小题，每小题2分，满分30分）
阅读下列四篇短文，从每小题后所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该选项涂黑。
| Ask Dr ? Jeffers | This month Dr. Jeffers is answering questions about the human brain and how it works. |
| Dear Dr. Jeffers, One of my colleagues, Felix Moeller, told me that scientists are learning to use computer to ‘read minds’. Is there any truth to this story/ —Jane Leon, New York, USA Dear Ms. Leon, Well, a lot of research is being conducted in this area, but so far, the brain scanning equipment and corresponding computer programs haven’t been able to actually read thoughts. In one experiment, test subjects（受试者）were connected to scanning equipment and shown two numbers on a screen. They were then asked to choose between adding or subtracting（减）the two numbers. Using this method, researchers were able to follow brain processes and make the correct assumptions（假设）70 percent of the time. It’s not quite mind reading, but it’s certainly a first step. —Dr. J. | |
| Dear Dr. Jeffers, My three-year-old son loves it when I dig my fingers into his sides and tickle （胳肢）him until he laughs uncontrollably. The other day I noticed him trying to tickle himself but he couldn’t do it. Why not? —Glenn Lewis, Vancouver, Canada Dear Mr. Lewis, It’s because of how the brain works. The brain is trained to know what to pay attention to and what to ignore. It causes us to ignore physical feelings we expect to happen, but it causes a mild panic reaction when there is an unexpected feeling. For example, you don’t notice how your shoulder feels while you’re walking down the street. But if someone comes up behind you and touches you lightly on the shoulder, you may jump in fear. It’s that unexpected part that causes the tickle reaction. —Dr. J. | |
1.What can we learn from the answer to the first question?
A. Some equipment is able to read human minds.
B. Some progress has been made in mind reading.
C. Test subjects have been used tomake decisions.
D. Computer programs can copy brain processes.
2.People laugh when tickled by others bedause the feeling is _______.
A. unexpected B.expected C. comfortable D. uncomfortable
3.Who has got a little child according to the text?
A. Ms. Leon B. Mr. Lewis C. Mr. Moeller D. Dr. Jeffers
4.According to the text, Jeffers is probably _______.
A. a computer programmer B. a test subject
C. a human brain expert D. a medical doctor
第二部分 阅读理解（共两节，满分40分）
（共15小题，每小题2分，满分30分）
阅读下列四篇短文，从每小题后所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该选项涂黑。
|
Ask Dr ? Jeffers |
This month Dr. Jeffers is answering questions about the human brain and how it works. |
|
Dear Dr. Jeffers, One of my colleagues, Felix Moeller, told me that scientists are learning to use computer to ‘read minds’. Is there any truth to this story/ —Jane Leon, New York, USA Dear Ms. Leon, Well, a lot of research is being conducted in this area, but so far, the brain scanning equipment and corresponding computer programs haven’t been able to actually read thoughts. In one experiment, test subjects（受试者）were connected to scanning equipment and shown two numbers on a screen. They were then asked to choose between adding or subtracting（减）the two numbers. Using this method, researchers were able to follow brain processes and make the correct assumptions（假设）70 percent of the time. It’s not quite mind reading, but it’s certainly a first step. —Dr. J. |
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|
Dear Dr. Jeffers, My three-year-old son loves it when I dig my fingers into his sides and tickle （胳肢）him until he laughs uncontrollably. The other day I noticed him trying to tickle himself but he couldn’t do it. Why not? —Glenn Lewis, Vancouver, Canada Dear Mr. Lewis, It’s because of how the brain works. The brain is trained to know what to pay attention to and what to ignore. It causes us to ignore physical feelings we expect to happen, but it causes a mild panic reaction when there is an unexpected feeling. For example, you don’t notice how your shoulder feels while you’re walking down the street. But if someone comes up behind you and touches you lightly on the shoulder, you may jump in fear. It’s that unexpected part that causes the tickle reaction. —Dr. J. |
1.What can we learn from the answer to the first question?
A. Some equipment is able to read human minds.
B. Some progress has been made in mind reading.
C. Test subjects have been used tomake decisions.
D. Computer programs can copy brain processes.
2.People laugh when tickled by others bedause the feeling is _______.
A. unexpected B.expected C. comfortable D. uncomfortable
3.Who has got a little child according to the text?
A. Ms. Leon B. Mr. Lewis C. Mr. Moeller D. Dr. Jeffers
4.According to the text, Jeffers is probably _______.
A. a computer programmer B. a test subject
C. a human brain expert D. a medical doctor
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