Scientistshavecreatedawaytocon

更新 2022-09-03
科目英语
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Scientists have created a way to control a robot with signals from human brain.By generating the proper brainwaves—picked up by a cap with electrodes (电极) that sense the signals and reflect a person’s instructions—scientists can instruct a humanoid(类人的) robot to move to specific locations and pick up certain objects.
The commands are limited to moving forward，picking up one of two objects and bringing it to one of two locations.The researchers have achieved 94 percent accuracy between the thought commands and the robot’s movements.
“This is really a proofofconcept demonstration，” said Rajesh Rao，a researcher from the University of Washington who leads the project.“It suggests that one day we might be able to use semiautonomous robots for such jobs as helping disabled people or performing routine tasks in a person’s home.”
The person wearing the electrode cap watches the robot’s movements on a computer screen through two cameras installed on and above the robot.
When the robot’s cameras see the objects that are to be picked up they pass on the information to the user’s computer screen.Each object lights up randomly on the computer screen.When a person wants something picked up and it happens to light up，the brain registers surprise and sends this brain activity to the computer and then to the robot.The robot then proceeds to pick up the object.
A similar algorithm(计算程序) is used to decide where the robot will go.
“One of the important things about this demonstration is that we’re using a ‘noisy’ brain signal to control the robot，” Rao said.“That means we can only obtain brain signals indirectly from sensors on the surface of the head，not where they are generated deep in the brain.As a result，the user can only generate highlevel commands such as indicating which object to pick up or which location to go to，and the robot needs to be autonomous enough to be able to execute such commands.”
In the future，the researchers hope to make the robots more adaptive to the environment by having them carry out more complex commands.
What is special about the robot introduced in the passage?

A．It is controlled by human thoughts.

B．It can be made humanoid.

C．It can be used to help the disabled.

D．It has high intelligence itself.

Which of the following is TRUE about the robot?

A．It can move forward and backward and pick up two objects at the same time.

B．It can move forward，pick up both objects and bring them to either location.

C．It can only move forward，pick up one object and put it in one location.

D．It can read all human thought demands and do as instructed.

What Rao said suggests that the new robot________.

A．is still at its early stage of development

B．will be widely used in our daily routine soon

C．is autonomous enough to complete complex commands

D．is only limited to doing routine work at home

The sixth paragraph mainly describes ________.

A．how the robot reacts to a person’s instructions

B．how the robot picks up the right object

C．the functions of the computer

D．how the robot finds out where to go

The underlined word “registers” in the passage can be best replaced by “________”．

A．receives

B．shows

C．writes down

D．picks up

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With the rapid development of public transport system, big cities like Shanghai hope to ease the traffic jams and pollution caused by an increasing number of cars.
Statistics show that Shanghai’s subway lines will reach 350 km by the end of this year, making the city No. 3 in the world in terms of subway length. Shanghai could be ranked No. 1 when the length is extended to 430 km next May in time for the World Expo. This means about 5.5 million people each day could use the city’s subway system, thereby reducing traffic bottle-necks and air and noise pollution in downtown Shanghai.
At present, Shanghai suffers from severe traffic jams, during not only rush hours and weekdays but also off-peak hours and weekends.
For years, car emissions (尾气) have been blamed for contributing 60 percent of the air pollution in the city center, causing various respiratory (呼吸道) diseases.
What’s more, Shanghai has not met its target of noise reduction for five years, which has become a major source of public complaints. Starting from August 1, cars that are considered highly polluting will be banned from entering the city centre.
Shanghai is also building 16 parking lots with 8,000 spaces near subway terminals so that people can park and ride the public system instead of driving their cars into the city center.
Much more needs to be done for truly easing the traffic jams and air and noise pollution caused by automobiles. For example, the ban on using the horn, which was made effective from June 1, 2007, has not really been carried out.
Many local people still regard owning and driving a car as a kind of demonstration(炫耀) of their wealth, without realizing the traffic and environmental hazards it can cause. When the subway system can take people to their destinations, driving a private car in downtown Shanghai could become a moral issue.
45. The best title for the passage may be___________.
A. Efforts to Ease Crowding & Pollution
B. Results of Public Transport System
C. Possibilities to Reduce Private Cars
D. Ways to Reduce Car Emission
46. The following is true EXCEPT that Shanghai _________.
A. Shanghai is building 16 parking lots for private cars in the city center
B. could be No. 1 in terms of subway length next May
C. has problems with crowding not only in rush hours
D. has strong public complaints about noise pollution
47. Guess the correct meaning of the underlined word “hazards”.
A. sudden changes       B. violent forces
C. public dislikes      D. dangerous results
48. The writer intends to tell us________ in the last two paragraphs.
A. though many plans have been carried out, the situation is hopeless
B. difficult as the situation seems, Shanghai is sure to overcome it
C. whether the problems will be solved depends on people’s action
D. environmental problem should be regarded as a moral issue.

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The HOPE IS A GAME--CHANGER PROJECT will deliver unbreakable soccer balls to kids who, all too often, see things horrible, broken and not survive the simplest of circumstances. The project started taking form well before anyone knew where it would lead –which is to test the power of like-minded people working together to turn inspiration into action.
Four years ago Bobby was in Rwanda offering help to the people there and taking photos of a child soldier named Moise with his “soccer ball”，which was a pile of rubbish tied together with a string. This “ball” was the only thing Moise could call his own --- no family, no home, no place to go. Forced to fight in the Congo and having killed three people at the unbearably young age of seven, the boy’s spirit was broken. And Bobby knew, as he took one photo after the next, that he’d never forget him. In fact, he returned the following year to tell Moise he had stayed deep within his heart ---but he was gone.
I recently helped Bobby launch his new book The Power of the Invisible Sun which features a photo of Moise, his ball, and kids from war-torn areas around the world. All of his earnings go towards the HOPE IS A GAME-CHANGER PROJECT for the kids he visited over the past decade. They caught the emotional landscape from heartbreak to joy, but share the undeniable longing for recovery and hope.
Bobby and I share the unchangeable belief that delivering hope is really a game-changer, especially to a child. We believe that each indestructible ball will come to represent a lasting symbol of hope. A light no matter how small---The Power of the Invisible Sun.
This holiday season, I ask you to think about whether you are doing enough to help someone else in the world. Or as Bobby likes to put it, consider “taking a concrete baby step”, which added together, can create transformational change. It’s my great hope that the HOPE IS A GAME-CHANGER PROJECT will change the lives of children in the world over --- one book, one ball at a time.
59．In the first sentence of the passage, the writer implies that___________.
A．kids live an unsafe life in parts of the world
B．the balls sent to kids should be of good quality
C．young kids can not overcome the difficulties
D．kids intend to break their toys into pieces
60． How may Bobby feel about Mosie?
A．He was very proud of Mosie’s bravery.
B．He felt sorry for Mosie’s ruined childhood.
C．He thought money could solve Mosie’s problem.
D．He felt happy to tell him what was in his heart.
61．Which of the following about Bobby’s new book is TRUE?
A．It earned a lot of money to help kids like Mosie.
B．The photos inside reflected the kids’ hopeless life.
C．Its title shows the author’s belief to change the world.
D．It changed the life of the kids recorded in the book.
62．The underlined part in the last paragrph probably means___________.
A．starting the first step as a baby does
B．taking an active action from now on
C．making great changes step by step
D．doing some small but good deeds

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Can you believe your eyes? A recent experiment suggests that the answer to that question may depend on your age.
Martin Doherty, a psychologist at the University of Stirling in Scotland, led the team of scientists. In this experiment, Doherty and his team tested the perception(观察力) of some people, using pictures of some orange circles. The researchers showed the same pictures to two groups of people. The first group included 151 children aged 4 to 10, and the second group included 24 adults aged 18 to 25.
The first group of pictures showed two circles alone on a white background. One of the circles was larger than the other, and these people were asked to identify the larger one. Four-year-olds identified the correct circle 79 percent of the time. Adults identified the correct circle 95 percent of the time.
Next, both groups were shown a picture where the orange circles, again of different sizes, were surrounded by gray circles. Here’s where the trick lies in. In some of the pictures, the smaller orange circle was surrounded by even smaller gray circles — making the orange circle appear larger than the other orange circle, which was the real larger one. And the larger orange circle was surrounded by even bigger gray circles — so it appeared to be smaller than the real smaller orange circle.
When young children aged 4 to 6 looked at these tricky pictures, they weren’t fooled — they were still able to find the bigger circle with roughly the same accuracy as before. Older children and adults, on the other hand, did not do as well. Older children often identified the smaller circle as the larger one, and adults got it wrong most of the time.
As children get older, Doherty said, their brains may develop the ability to identify visual context. In other words, they will begin to process the whole picture at once: the tricky gray circles, as well as the orange circle in the middle. As a result, they’re more likely to fall for this kind of visual trick.
55．Doherty and his team of scientists did an experiment to evaluate________.
A．children’s and adults’ eye-sight
B．people’s ability to see accurately
C．children’s and adults’ brains
D．the influence of people’s age
56．When asked to find the larger circle,___________.
A．children at 6 got it wrong 79 % of the time with no gray ones around
B．only adults over 18 got it right 95% of the time with gray ones around
C．children at 4 got it right about 79 % of the time with gray ones around
D．adults got it right most of the time with gray ones around
57．Visual context may work when children get older than________.
A．4 B．6 C．10 D．18
58．Why are younger children not fooled ?
A．Because they are smarter than older children and adults.
B．Because older people are influenced by their experience.
C．Because people’s eyes become weaker as they grow older.
D．Because their brain can hardly notice related things together.

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第二部分: 阅读理解(共16小题,每小题2分,满分32分)
第一节（共12小题：每小题2分，满分24分）
阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
On September 22, 1986, Jay Brunkella, a police officer in the Rogers Park district in Chicago, was shot during a drug arrest and died. Shortly afterwards, fellow officer Ken Knapcik, a 20-year veteran（老警官）of the force, returned home after work to find a note from his 15 year old daughter on the dining table.
Dad—This poem came directly from my heart. I love you so much! It scares and amazes me that you go out every day and risk everything to provide us with all that we have. I wrote this to express how much I love you and how much lost I’d be without you ---Laura. PS: Hey, let’s be careful out there.
Titled The Ultimate Cop, Laura’s poem was dedicated “To all the cops in the world who have daughters who love them with all their hearts. And especially to my dad”. It was about a police officer’s daughter who sees on the night time news that her father has been shot. Part of poem: “Daddy, my Daddy, can you hear me cry? Oh, God, I need my Daddy, please don’t let him die.”
Ken Knapcik stood alone as he read the poem. “It took me several minutes,” he said. “I’d get through part of it and have to stop before I could go on. I was weeping. She had never told me she was scared.” He took the poem to work the next day and showed it to his fellow officers. I’ve never seen so many grown men cry. Some couldn’t finish it.”
Knapcik keeps Laura’s poem in the pocket of his police jacket. He takes it with him every time he leaves the house for a new shift. “I don’t want to be out there without it,” he said. “I’ll probably carry it with me forever.”
51. Laura wrote the poem ____________.
A. in memory of her father who was shot in the drug arrest
B. to show her great sorrow in losing her father
C. to show her respect to all the cops who lost their lives
D. to tell Officer Ken Knapcik how much she loved him
52. All the officers cried because ____________.
A. Jay Brunkella was shot and died
B. they were greatly touched by the poem
C. the poem was so sad that they couldn’t hold back their tears
D. they thought of their dangerous life
53. Knapcik keeps Laura’s poem in his pocket ______________.
A. to treasure her daughter’s love and to value his own life
B. to keep it from getting lost
C. because he can’t go out without it
D. to mourn over the death of Officer Jay Brunkella
54. Which of the following is the best title for the passage?
A. Poem for a cop B. An officer’s death
C. A cop’s daughter D. Love my job, love my daughter

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As we all know, it was Thomas Jefferson who wrote the Declaration of Independence (《独立宣言》). He wrote it in two weeks, and after a few changes, it was accepted by the Congress (国会). As a result, he became famous.
Born in Virginia, Thomas Jefferson, a brilliant student at school and almost talented lawyer later, was much interested in politics.
Jefferson was elected the Governor of Virginia in 1779, and he was sent to France as the representative of the American government in 1784. Sixteen years later, at the age of 57, he was elected president after Washington and Adams.
Far from a handsome man, he was tall with long arms and big hands. Jefferson, who was an amusing talker in conversation but a poor speaker, was generally good-natured.
Jefferson was regarded as a defender of freedom in America. As a president, he protected the right of free speech. Interestingly enough, in his eight years as president, Jefferson never vetoed (否决) a bill which the Congress had passed. He did a lot in organizing the new University of Virginia.
Thomas Jefferson died on July the fourth, 1826, the fiftieth anniversary of American Independence.
5. From the passage we can infer that America won its independence in _______.
A. 1786       B. 1800       C. 1842           D. 1776
6. How old was Thomas Jefferson when he became the Governor of Virgina?
A. He was 26.                         B. He was in his forties.
C. He was 36.                         D. We don’t know.
7. Which of the following statements is TRUE?
A. Jefferson wan an amusing talker, but not good at speaking in public.
B. Jefferson was not an easy person to get along with.
C. Jefferson was not only very talented but also very handsome.
D. Not being politically minded, Jefferson never vetoed a bill passed by the Congress.
4. Jefferson died when he was ________.
A. 72          B. 83           C. 73             D. 92
8. Jefferson’s greatest contribution in American history should be that ________.
A. he did a lot in organizing the new University of Virginia.
B. he was strongly against the slavery
C. he wrote the Declaration of Independence
D. he was for the right of free speech

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