题目列表(包括答案和解析)
A team of researchers in California has developed a way to predict what kinds of objects people are looking at by scanning what’s happening in their brains.
When you look at something, your eyes send a signal about that object to your brain. Different regions of the brain process the information your eyes send. Cells in your brain called neurons(神经元) are responsible for this processing.
The fMRI (functional Magnetic Resonance Imaging功能性磁共振造影) brain scans could generally match electrical activity in the brain to the basic shape of a picture that someone was looking at.
Like cells anywhere else in your body, active neurons use oxygen. Blood brings oxygen to the neurons, and the more active a neuron is, the more oxygen it will consume. The more active a region of the brain, the more active its neurons, and in turn, the more blood will travel to that region. And by using fMRI, scientists can visualize which parts of the brain receive more oxygen- rich blood--and therefore, which parts are working to process information.
An fMRI machine is a device that scans the brain and measures changes in blood flow to the brain. The technology shows researchers how brain activity changes when a person thinks, looks at something, or carries out an activity like speaking or reading. By highlighting the areas of the brain at work when a person looks at different images, fMRI may help scientists determine specific patterns of brain activity associated with different kinds of images.
The California researchers tested brain activity by having two volunteers view hundreds of pictures of everyday objects, like people, animals, and fruits. The scientists used an fMRI machine to record the volunteers' brain activity with each photograph they looked at. Different objects caused different regions of the volunteers' brains to light up on the scan, indicating activity. The scientists used this information to build a model to predict how the brain might respond to any image the eyes see.
In a second test, the scientists asked the volunteers to look at 120 new pictures. Like before, their brains were scanned every time they looked at a new image. This time, the scientists used their model to match the fMRI scans to the image. For example, if a scan in the second test showed the same pattern of brain activity that was strongly, related to pictures of apples in the first test, their model would have predicted the volunteers were looking at apples.
51. What is responsible for processing the information sent by your eyes?
A A small region of the brain.
B The central part of the brain.
C Neurons in the brain.
D Oxygen-rich blood.
52. Which of the following statements is NOT meant by the writer?
A Cells in your brain are called neurons.
B The more oxygen a neuron consumes, the more blood it needs.
C fMRI helps scientists to discover which parts of the brain process information.
D fMRI helps scientists to discover how the brain develops intelligently.
53. "Highlighting the areas of the brain at work" means
A "marking the parts of the brain that are processing information"
B "giving light to the parts of the brain that are processing information"
C "putting the parts of the brain to work"
D "stopping the parts of the brain from working"
54. What did the researchers experiment on?
A Animals, objects, and fruits.
B Two volunteers.
C fMRI machines.
D Thousands of pictures.
55.What is the best title for the passage?
A Mind-reading Machine
B A Technological Dream
C Device that can Help You Calculate
D The Recent Development in Science and Technology
A pill,code-named HT-0712,may make forgetfulness a thing of the past. It is being developed in the US and could go on sale within five years.
According to the newspaper The Sun,the wonder drug has been nicknamed “Mind Viagra”and has already been shown to boost the memory power of mice and flies. Next it will be tested on humans. This is just one of a number of drugs in a pharmaceutical (制药的) race to develop an increased memory pill. At least 12 US companies are believed to be working on similar projects.
Tim Tully,the founder of US drug company Helicon Therapeutics,who is in charge of the HT-0712 project,gave this practical example of its use for students:“If it takes two weeks to memorize a verse of Shakespeare,with one of these drugs you might be able to do it in two or three days. ”
“The memory drug business appears to be set to become a multi-million dollar industry,”experts say. This summer,100 Americans suffering mild memory loss will test HT-0712 in the first experiment on people.
“You don’t think better than you did before,you just get the facts in with less practice. There is a growing belief that memory and memory loss is just another treatable condition,”says Tully.
However,there is some doubt whether the drugs can really improve memory. In a study by the US’s Yale University Medical School,researchers suggested that the drug might affect other parts of the memory.
1.Which of the following can be most likely to replace the underlined word “boost” in the second paragraph?
A.Reduce. B.Increase. C.Kill. D.Harm.
2.What will happen to the students most probably if they take HT-0712?
A.They will grow taller.
B.They can memorize things easily.
C.They won’t suffer from illness.
D.They will choose whatever universities they like.
3.The future of HT-0712 can be said according to experts.
A.dim B.uncertain C.bright D.worried
4.HT-0712 is a pill that .
A.has bad effect on the health of mice and flies
B.has been experimented on dozens of animals
C.will be experimented on humans this summer
D.is certain to do no harm to human
5.The purpose of writing the passage is to .
A.warn people the harm of HT-0712
B.introduce to people the advantages of HT-0712
C.tell people something about HT-0712
D.doubt whether it is worth developing HT-0712
B
For a song to become popular, people need to bear it. In order for people to hear it, the program directors at radio stations have to play it on the air. A song’s popularity is directly related to how often it is played. That is a big responsibility for program directors. How do they decide what gets played and what doesn’t?
In the past, disc jockeys(音乐节目主持人) decided what music was played on the radio. These DJs had an ear for music and an understanding of what their audience wanted to hear. Today, that is all changing. Most major radio stations are owned by a few large national businesses. The decision of what gets played on the radio is made by executives(主管) who have little or no interest in music. They do, however, know how to run a business, and they know what sells. So, the music industry designs and creates pop entertainers, and executives in the radio industry make sure that their music is played on the radio. This explains why you do not often hear anything new and fresh on the radio. The executives do not want to give air time to music that has not been tested on the market. It is too risky. They prefer to go with music that they already know will sell. They know it will sell because it sold last week and last month and last year. They just have to change it a little.
One of the most criticized(批评) practices in the music industry is the practice of “payola”. This is when record companies pay radio stations to play the music of a given artist. This practice makes many people lose trust in the music industry and is therefore against the law. A radio station can accept money in exchange for air time of a song, but they have to make it clear that the song is being played because its air time was paid for. They cannot present the song as if it were part of the normal play schedule(时刻表).
Payola affects both artists and audiences. The artists who work with small record companies that cannot pay a lot of money to radio stations have a much harder time getting exposure. It creates an unfair playing field. Music lovers suffer because they are not able to hear all the music that is available.
60. According to the passage, most major radio stations belong to .
A. national businesses B. program directors
C. pop entertainers D. record companies
61. “Payola” is the practice of .
A. artists paying radio stations to play their songs
B. record companies buying air time for certain music
C. radio station paying record company for new songs
D. program directors deciding what music gets played
62. Who can make the largest profits from payola?
A. Disc Jockeys. B. The given artists.
C. Business executives. D. Program directors.
63. It can be concluded from the passage that the author .
A. has a positive attitude towards the practice of “payola”
B. is dissatisfied with the present situation in music industry
C. is calling for a change in the normal play schedule
D. thinks that the radio stations are doing the right thing
B
For a song to become popular, people need to bear it. In order for people to hear it, the program directors at radio stations have to play it on the air. A song’s popularity is directly related to how often it is played. That is a big responsibility for program directors. How do they decide what gets played and what doesn’t?
In the past, disc jockeys(音乐节目主持人) decided what music was played on the radio. These DJs had an ear for music and an understanding of what their audience wanted to hear. Today, that is all changing. Most major radio stations are owned by a few large national businesses. The decision of what gets played on the radio is made by executives(主管) who have little or no interest in music. They do, however, know how to run a business, and they know what sells. So, the music industry designs and creates pop entertainers, and executives in the radio industry make sure that their music is played on the radio. This explains why you do not often hear anything new and fresh on the radio. The executives do not want to give air time to music that has not been tested on the market. It is too risky. They prefer to go with music that they already know will sell. They know it will sell because it sold last week and last month and last year. They just have to change it a little.
One of the most criticized(批评) practices in the music industry is the practice of “payola”. This is when record companies pay radio stations to play the music of a given artist. This practice makes many people lose trust in the music industry and is therefore against the law. A radio station can accept money in exchange for air time of a song, but they have to make it clear that the song is being played because its air time was paid for. They cannot present the song as if it were part of the normal play schedule(时刻表).
Payola affects both artists and audiences. The artists who work with small record companies that cannot pay a lot of money to radio stations have a much harder time getting exposure. It creates an unfair playing field. Music lovers suffer because they are not able to hear all the music that is available.
60. According to the passage, most major radio stations belong to .
A. national businesses B. program directors
C. pop entertainers D. record companies
61. “Payola” is the practice of .
A. artists paying radio stations to play their songs
B. record companies buying air time for certain music
C. radio station paying record company for new songs
D. program directors deciding what music gets played
62. Who can make the largest profits from payola?
A. Disc Jockeys. B. The given artists.
C. Business executives. D. Program directors.
63. It can be concluded from the passage that the author .
A. has a positive attitude towards the practice of “payola”
B. is dissatisfied with the present situation in music industry
C. is calling for a change in the normal play schedule
D. thinks that the radio stations are doing the right thing
For a song to become popular, people need to bear it. In order for people to hear it, the program directors at radio stations have to play it on the air. A song’s popularity is directly related to how often it is played. That is a big responsibility for program directors. How do they decide what gets played and what doesn’t?
In the past, disc jockeys(音乐节目主持人) decided what music was played on the radio. These DJs had an ear for music and an understanding of what their audience wanted to hear. Today, that is all changing. Most major radio stations are owned by a few large national businesses. The decision of what gets played on the radio is made by executives(主管) who have little or no interest in music. They do, however, know how to run a business, and they know what sells. So, the music industry designs and creates pop entertainers, and executives in the radio industry make sure that their music is played on the radio. This explains why you do not often hear anything new and fresh on the radio. The executives do not want to give air time to music that has not been tested on the market. It is too risky. They prefer to go with music that they already know will sell. They know it will sell because it sold last week and last month and last year. They just have to change it a little.
One of the most criticized(批评) practices in the music industry is the practice of “payola”. This is when record companies pay radio stations to play the music of a given artist. This practice makes many people lose trust in the music industry and is therefore against the law. A radio station can accept money in exchange for air time of a song, but they have to make it clear that the song is being played because its air time was paid for. They cannot present the song as if it were part of the normal play schedule(时刻表).
Payola affects both artists and audiences. The artists who work with small record companies that cannot pay a lot of money to radio stations have a much harder time getting exposure. It creates an unfair playing field. Music lovers suffer because they are not able to hear all the music that is available.
60. According to the passage, most major radio stations belong to_________
A. national businesses B. program directors
C. pop entertainers D. record companies
61. “Payola” is the practice of________
A. artists paying radio stations to play their songs
B. record companies buying air time for certain music
C. radio station paying record company for new songs
D. program directors deciding what music gets played
62. Who can make the largest profits from payola?
A. Disc Jockeys. B. The given artists.
C. Business executives. D. Program directors.
63. It can be concluded from the passage that the author .
A. has a positive attitude towards the practice of “payola”
B. is dissatisfied with the present situation in music industry
C. is calling for a change in the normal play schedule
D. thinks that the radio stations are doing the right thing
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