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题型:阅读选择 题类:模拟题 难易度:普通

    Since the 1970s, scientists have been searching for ways to connect the brain with computers. Braincomputer interface(BCI) technology could help people with disabilities send commands to machines.
    Recently, two scientists, Jose Millan and Michele Tavella from the Federal Polytehnic School in Lausanne, Switzerland, show a small robotic wheelchair directed by a person's thoughts.
    In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts.
    “Our brain has billions of body cells(细胞). These send signals through the spinal cord(脊髓) to the body part to give us the ability to move. But spinal cord injuries(脊柱受伤) or other conditions can prevent these weak electrical signals from reaching the body part.” Tavella says. “Our system allows disabled people to communicate with outer world and also to control machines.”
    The scientists designed a special cap for the user. This head cover picks up the signals from the scalp(头皮) and sends them to a computer. The computer finds meanings of the signals and commands the wheelchair with an engine. The wheelchair also has two cameras that tell objects in its path. They help the computer react to commands from the brain.
    Prof. Millan , the team leader, says scientists keep improving the computer software that finds meanings of brain signals and turns them into simple commands.” The practical possibilities that BCI technology offers to disabled people can be grouped in two kinds: communication, and controlling objects. One example is this wheelchair.”
    He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can get advantages from. And the other is sure that they can use the technology for long.

(1)、BCI is a technology that can________.

A、help to make computer systems more modern B、connect the human brain with computers C、help the disabled to be healthier D、control a person's thoughts
(2)、Which of the following shows the path of the signals described in Paragraph 5?

A、scalp→computer→cap→wheelchair B、computer→cap→scalp→wheelchair C、scalp→cap→computer→wheelchair D、cap→computer→scalp→wheelchair
(3)、The team will test with real patients to_________.

A、make money from them B、prove the technology useful to them C、make them live longer D、learn about their physical condition
(4)、Which of the following would be the best title for the text?

A、Switzerland, the BCI research Center B、New Findings About How the Human Brain Works C、BCI Could Mean More Freedom for the Disabled D、Robotic Vehicles Could Help to Cure Brain Sickness
举一反三
    Many strong and out-of-control emotions are recognized as an illness. People who are always very sad have depression (抑郁症); those who worry a lot have anxiety.
    But what about anger problems? Anger is largely viewed as a secondary emotion – one caused by other emotions. People are thought to be angry because they are sad, anxious or stressed. In the past, many doctors didn't accept the idea that anger could be a problem all on its own.
    Today, though, a growing number of mental health experts think that anger is a serious problem that needs its own treatment.
How to tell the difference between "normal" anger and "anger problem" is difficult. After all, everyone gets really mad from time to time. Experts point out a few ways.
    Disordered anger, as it is sometimes called, tends to be of greater intensity (强度). It takes very little to set off a person with an anger problem, and their responses (反应) are very strong. An example: While most people would get upset if a driver cut them off, someone with disordered anger might try to chase down the car and force it off the road.
    And in cases of disordered anger, the person gets angry more frequently and his/her anger lasts longer. For most people, angry feelings disappear quickly. But people with anger problems often stay angry for days, weeks or even years; their feelings of anger don't disappear over time.
     Consequences are also important to consider: Disordered anger often damages people's lives. “It interferes (干扰) with people's relationships and their jobs,”says Raymond Chip Tafrate, a US psychologist. “Even their health is affected.”
Anger clearly increases the risk of certain health problems, as many studies have shown. “When a person is angry, their heart beats faster and their blood pressure goes up,”says Howard Kassinove, a professor at Hofstra University in New York. Over time, these changes take their toll on the body, he adds.
    Experts suggest that people with an anger problem take anger-management programs. The programs teach people to control their responses to stressful situations through the use of relaxation techniques. The programs sometimes include life-skills training as well: increasing someone's level of competence (竞争)– whether on the job or as a parent or partner – helps bring down stress and cut angry feelings.

 阅读理解。

Scientists have found that plants can make sounds. 

A scientist, Lily Hadany, and her team recorded(录制) tomato plants at different times. It showed that the plants made ultrasonic(超声波) sounds. People could only hear them with the help of a computer. They were noises like clicking(发出咔嗒声) sounds. 

As scientists studied the sounds, they began to find some interesting facts. Plants made different sounds at different time. They seldom clicked when they had enough water, but when they needed water, they clicked more and more. Scientists also found that plants made sounds when they got hurt. When scientists cut off a leaf from the plants, the plants also clicked more. But this kind of clicking wasn't the same as when the plants needed water. 

Some scientists designed a computer AI system to tell the different kinds of clicking sounds. It was able to find the difference between plants that needed water and plants with cuts. It means that one day we may be able to use these sounds to figure out when it is in difficult time, and what problem it is having. That could be very helpful to farmers. 

The team's finding changes our ideas about plants. As Dr Hadany says, "Even in a quiet field, there are sounds made by plants, and those sounds carry information and may help us a lot. "

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