题目内容

Since the 1970s, scientists have been searching for ways to link the brain with computers. Brain-computer interface (界面) (BCI) technology could help people with disabilities send commands to machines.

Recently, two researchers, Jose Milan and Michele Tavella from the Federal Polytechnic School in Lausanne, Switzerland, demonstrated（展示）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 nerve cells. These send signals through the spinal cord (脊髓) to the muscles to give us the ability to move. But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the muscles,” Tavella says. “Our system allows disabled people to communicate with external world and also to control devices.”

The researchers 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 interprets the signals and commands the motorized wheelchair. The wheelchair also has two cameras that identify objects in its path. They help the computer react to commands from the brain.

Prof. Milan, the team leader, says scientists keep improving the computer software that interprets brain signals and turns them into simple commands. “The practical possibilities that BCI technology offers to disabled people can be grouped in two categories: communication, and controlling devices. 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 benefit from. And the other is to guarantee that they can use the technology over long periods of time.

1. BCI is a technology that can _________________.

A. help to update computer systems

B. link the human brain with computers

C. help the disabled to recover

D. control a person's thoughts

2.How did Tavella operate the wheelchair in the laboratory?

A. By controlling his muscles.

B. By talking to the machine.

C. By moving his hand.

D. By using his mind.

3.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

4. Which of the following would be the best title for the text?

A. BCI Could Mean More Freedom for the Disabled

B. New Findings about How the Human Brain Works

C. Switzerland, the BCI Research Center

D. Robotic Vehicles Could Help to Cure Brain Injuries

练习册系列答案
相关题目

We had the feeling, somehow, _____ the revolution was right around the corner.

A. which B. that C. what D. When

语法填空 在下面短文的空白处填上适当的词或用所给词的适当形式填空One day, Pierre, 1.___ worked in a government office, received 2.___ invitation to a palace ball. His wife, Mathilde, had no money 3.___jewellery, so she borrowed a beautiful necklace 4.____ her friend, Jeanne. She looked very beautiful 5.___ they had a wonderful time that evening. But after the ball, she found the necklace 6.__(miss). They had to borrow a lot of money to buy a new7.___ for Jeanne. In order to pay8.___ the money, they worked day and night for 10 years. Mathilde became very old, so Jeanne didn’t recognize her 9.____ they met in a park 10 years later. From this story, we know a person shouldn’t be affected 10._____ vanity (虚荣心), otherwise it will cost him or her a lot.

阅读下列短文，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

Marty has a muscle disease which prevents him 1. (live) a normal life in many ways. 2. (fortunate), the disease is quite rare and neither its cause 3. its cure is understood. So it is difficult to know 4. the future holds for him. He used to be made 5. (annoy) by those who didn’t understand his condition and treated him differently. However, now in high school, he has taken a positive attitude towards life. He works hard and is busy with his study and hobbies 6. no time to sit around 7. (feel) sorry for himself. In fact, his disability has helped him grow stronger psychologically and become more 8. (depend). He wants us able-bodied people to accept the disabled for who they are and give them 9. (encourage) to live as rich and full 10. life as we do.

书面表达

今年4月23日是第21个世界读书日，为参加学校将举行的读书分享活动，李华在某购书网站购买了一本英文版（English version）的The Old Man and the Sea. 请根据以下要点，替李华写一封投诉信。

问题：1. 收到的书是中文版的。

2. 预计三月底到达，结果四月八日才收到。

要求：退款或尽快寄一本英语版的过来；如果重寄一本，必须四月十五日前送达。

注意： 1、可适当增加细节, 使内容充实, 行文连贯。

2、词数100左右；开头已给出, 不计入总词数。

The traffic problem we are looking forward to seeing ________should have attracted the local government’s attention.

A. solve B. solved C. to solve D. solving

I'd like to buy a house — modern, comfortable, and ____ in a quiet neighborhood.

A. above all B. in all C. after all D. at all

Some people bring out the best in you in a way that you might never have fully realized on your own. My mom was one of those people.

My father died when I was nine months old, making my mom a single mother at the age of eighteen. While I was growing up, we lived a very hard life. We had little money, but my mom gave me a lot of love. Each night, she sat me on her lap and spoke the words that would change my life, “Kemmons, you are certain to be a great man and you can do anything in life if you work hard enough to get it.”

At fourteen, I was hit by a car and the doctors said I would never walk again. Every day, my mother spoke to me in her gentle, loving voice, telling me that no matter what those doctors said, I could walk again if I wanted to badly enough. She drove that message so deep into my heart that I finally believed her. A year later, I returned to school — walking on my own!

When the Great Depression (大萧条) hit, my mom lost her job. Then I left school to support the both of us. At that moment, I was determined never to be poor again.

Over the years, I experienced various levels of business success. But the real turning point occurred on a vacation I took with my wife and five kids in 1951. I was dissatisfied with the second-class hotels available for families and was angry that they charged an extra $2 for each child. That was too expensive for the average American family. I told my wife that I was going to open a motel (汽车旅馆) for families that would never charge extra for children. There were plenty of doubters at that time.

Not surprisingly, mom was one of my strongest supporters. She worked behind the desk and even designed the room style. As in any business, we experienced a lot of challenges. But with my mother’s words deeply rooted in my soul, I never doubted we would succeed. Fifteen years later, we had the largest hotel system in the world — Holiday Inn. In 1979 my company had 1, 759 inns in more than fifty countries with an income of $ 1 billion a year.

You may not have started out life in the best situation. But if you can find a task in life worth working for and believe in yourself, nothing can stop you.

1.What Kemmons’ mom often told him during his childhood was ______.

A. caring B. moving

C. encouraging D. interesting

2.According to the author, who played the most important role in making him walk back to school again?

A. Doctors. B. Nurses. C. Friends. D. Mom.

3. What caused Kemmons to start a motel by himself?

A. His terrible experience in the hotel.

B. His previous business success of various levels.

C. His mom’s support.

D. His wife’s suggestion.

4.Which of the following best describes Kemmons’ mother?

A. Modest, helpful, and hard-working.

B. Loving, supportive and strong-willed.

C. Careful, helpful and beautiful.

D. Strict, sensitive and supportive.

5.Which of the following led to Kemmons’ success according to the passage?

A. Self-confidence, hard work, higher education and a poor family.

B. Mom’s encouragement, clear goals, self-confidence and hard work.

C. Clear goals, mom’s encouragement, a poor family and higher education.

D. Mom’s encouragement, a poor family, higher education and opportunities

短文改错

假定英语课上英语老师要求同桌之间互相修改作文，请你修改你同桌写的以下作文。

文中共有10处语言错误，每句中最多有两处。每个错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，在该词下面写出修改后的词。

注意：1、每处错误及修改均仅限一词。

Manners are important to happy relations among people. No one liked a person with bad manners. Having good manners are seen by many people for a sign of cultural understanding and good taste.polite words are one of the example.When meet people,saying “Hello!”or “How are you?”and so on means you are very polite ,which will make that easy for you to communicate with others.Otherwise,they will hate getting on with you and your life will become difficultly.Only saying polite words can you get on well with others.

All in the all, it is polite words which will make your life become convenient.

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网