职称英语考试

试题来源：2009年职称英语等级考试真题（理工类B级）
【单选题】

Mind-reading Machine
A team of researchers in California has developed a way to predict what kinds of objects people are looking at by scanning (扫描) 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 (使…显现) 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.
36　What is responsible for processing the information sent by your eyes?
A　The magnetic system in the brain.
B　The central part of the heart.
C　Neurons in the brain.
D　Oxygen-rich blood.
37　The function of an fMRI machine is
A　to show how neutrons take in oxygen-rich blood.
B　to measure how dense the blood is in the brain.
C　to identify which parts of the brain are processing information
D　to record how much oxygen the brain consumes.
38　The expression "highlighting the areas of the brain at work' in paragraph 5 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　preventing the parts of the brain from working.
39　The researchers experimented on
A　animals and objects.
B　fMRI machines.
C　thousands of pictures.
D　two volunteers.
40　Which of the following can best replace the title of the passage?
A　Your Thoughts Can Be Scanned.
B　Recent Development in Science and Technology
C　A Technological Dream.
D　An Intelligent Robot.

网考网参考答案：D、D、B、C、B
大数据分析：根据网考网与考试题库的统计分析，该试题：
77%的考友选择了A选项
10%的考友选择了B选项
7%的考友选择了C选项
6%的考友选择了D选项
考友解析与评论：
 · 我也选错了，不过这个题书上有原话
 · 我就纳闷了，为什么要选D、D、B、C、B
 · 我做了好几遍答案都是D、D、B、C、B