Since the 1970s.scientists have been searching for ways to link the brain with computers．Brain-computer interface(BCI) technology could help people with disabilities to send orders to machines．Recen 题目和参考答案——青夏教育精英家教网—

精英家教网 > 高中英语 > 题目详情

16．Since the 1970s，scientists have been searching for ways to link the brain with computers．Brain-computer interface（BCI） technology could help people with disabilities to send orders to machines．
Recently，two researchers，Jose Milan and Michele Tavella from the Federal Polytechnic school in Lausanne，Switzerland，showed 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 cases can prevent these weak signals from reaching the muscles，"Tavella says．"Our system allows disabled people to communicate with the outside world and also to control machines．"
The researchers designed a special cap for the user．This cap picks up the signals from the scalp（头皮） and sends them to a computer．The computer interprets the signals and commands the robotic 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 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．

12．How did Tavella operate the wheelchair in the laboratory？D
A．By controlling his muscles．
B．By talking to the machine．
C．By moving his hand．
D．By using his mind．
13．Which of the following shows the path of the signals described in Paragraph 5？C
A．scalp→computer→cap→wheelchair
B．computer→cap→scalp→wheelchair
C．scalp→cap→computer→wheelchair
D．cap→computer→scalp→wheelchair
14．The team will test with real patients toB．
A．make profits from them
B．prove the technology useful to them
C．make them live longer
D．learn about their physical condition
15．Which of the following would be the best title for the text？C
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 Injuries．

分析本文是一则新闻报道，科学家寻找到了一种方法，把人脑与电脑连接起来，进而发明了Brain-computer interface（BCI）技术的发明，文中介绍了它的原理和对残疾人带来的益处．

解答 12．D．细节理解题．根据第二段"Tavellaoperated the wheelchair just by thinking about moving his left or right band．"可知Tavella是用他的头脑在实验室操作的轮椅．故选D．
13．C．细节理解题．根据第五段The researchersdesigned a special cap for the user．This head cover picks up the signals fromthe scalp（头皮） and sends them to a computer．Thecomputer interprets the signals and commands the motorized wheelchair．Thewheelchair also has two cameras that identify objects in its path．They helpthe computer react to commands from the brain可知信号的路径是头皮→帽→计算机→轮椅．故选C．
14．B．细节理解题．根据最后一段"to prove thatthis is a technology they can benefit from．"，证明他们可以从中获得的好处．故选B．
15．C．主旨大意题．本文是新闻文体，因此要关注首段的中心，由首段的第二句话"Brain-computer interface（BCI） technology could help people withdisabilities send commands to machines．"可知bci可能意味着残疾人更多的自由；故选C．

点评考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．

练习册系列答案

年级	高中课程	年级	初中课程
高一	高一免费课程推荐！	初一	初一免费课程推荐！
高二	高二免费课程推荐！	初二	初二免费课程推荐！
高三	高三免费课程推荐！	初三	初三免费课程推荐！
更多初中、高中辅导课程推荐,点击进入>>

相关习题

科目：高中英语 来源： 题型：填空题

6．In the years since the first Harry Potter story was published in 1997，the kid in the glasses with a gift for magichas become （become） a global legend．This fictional boy may bethe most famous （famous） child on the planet．This entire epic story of the books is given shape by the battle between Harry and Voldemort．It ends as it began，with the twofacing （face） each other，one representing good，the otherevil/bad．
The Harry Potter books are popular with so many because they are adventures．We read adventures because they allow usto imagine （imagine） an exciting life we can't live ourselves．On the other hand，though/however，we still need our heroes to be a little bit like us，and Harry and his young friends are like usin many ways．
They are growing up，like us，and they experience the ups and downs on the way．During the years that many young people spend with Harry，they experience their first romances，which makes Harry's own teenage affair more interesting to them．
But it's the tale of Harry versus Voldemortthat keeps us going with these classics of children's writing to the end，our arrival at that moment when Voldemort is defeated and of course，Harry triumphs．Here，one might say，Harry like many western fictional characters before him，is like Jesus．Through his selflessness，he becomes a hero and makes sure there is good in the world．Besides，J．K Rowling'screativity （create） makes her Harry Potter story such a masterpiece．

查看答案和解析>>

科目：高中英语 来源： 题型：选择题

7．-What's the matter with you，Sandy？
-I'm _____ a bad cold．I think I am dying．（　　）

A．

recovering from

B．

suffering from

C．

coming up with

D．

getting into

查看答案和解析>>

科目：高中英语 来源： 题型：阅读理解

4．British society is considered to be divided into three main groups of classes-the Upper Class，the Middle Class，and the Lower or Working Class．This is known as the Class system and it is important to know something about it if you want to understand British people and society．Most British people grow up with a deep knowledge and understanding of the class system even if they are not very conscious（意识到）of it．Most people know which class they belong to by the way they speak，their clothes，their interests or even the type of food they eat．
Social class is not only about behavior and attitudes．For example，although many upper class people are rich and may own a lot of land，having a lot of money does not make a person upper class．It is also important to come from a particular kind of family，have friends who are considered suitable，have been to a certain type of private school and speak with the right kind of accent．There are people who are poor but who do not think of themselves as working class，because their family background，education，political opinions，etc．are different from those of most working-class people．Many people do not like the class system but it is impossible to pretend that these differences do not exist or that British people do not sometimes form opinions in this way．
63．According to the passage，you cannot judge an Englishman's social class byC．
A．the clothes he wears
B．the way he speaks
C．where he was born
D．the interests he has
64．If an Englishman has much money，A．
A．he is not likely to be from the upper class
B．he must be a member of the upper class
C．he belongs to the middle class
D．he may buy an upper class title with the money
65．What does the second paragraph mainly discuss？B．
A．Many rich people do not belong to the upper class
B．An Englishman's social class is determined by many factors（因素）
C．Many poor people do not consider themselves as lower class
D．Today many British people do not like the class system
66．According to the passage，the idea of the class system in BritainD．
A．exists only in the mind of foreigners
B．is regarded as a long system
C．is now under severe attack
D．is deeply rooted in the British people．

查看答案和解析>>

科目：高中英语 来源： 题型：选择题

11．-I'm dead tired．I can't walk any farther，Jenny．
-__________，Tommy．You can do it．（　　）

A．

No problem

B．

No hurry

C．

Come on

D．

That's OK

查看答案和解析>>

科目：高中英语 来源： 题型：阅读理解

1．We now think of chocolate as sweet，but once it was bitter．We think of it as a candy，but once it was a medicine．Today，chocolate can be a hot drink，a frozen dessert，or just a snack．Sometimes it's an ingredient（配料） in the main course of a meal．Mexicans make a hot chocolate sauce called"mole"and pour it over chicken．The Mexicans also eat chocolate with spices like chili peppers．
Chocolate is a product of the tropical cacao tree．The beans taste so bitter that even the monkeys say"Ugh!"and run away．Workers must first dry and then roast the beans．This removes the bitter taste．
The word"chocolate"comes from a Mayan word．The Maya was an ancient people who once lived in Mexico．They valued the cacao tree．Some used the beans for money，while others crushed them to make a drink．
When the Spaniards came to Mexico in the sixteenth century，they started drinking cacao too．Because the drink was strong and bitter，they thought it was a medicine．No one had the idea of adding sugar．The Spaniards took some beans back to Europe and opened cafes．Wealthy people drank cacao and said it was good for the digestion（消化）．
In the 1800s，the owner of a chocolate factory in England discovered that sugar removed the bitter taste of cacao．It quickly became a cheap and popular drink．Soon afterwards，a factory made the first solid block of sweetened chocolate．Later on，another factory mixed milk and chocolate together．People liked the taste of milk chocolate even better．
Besides the chocolate candy bar，one of the most popular American snacks is the chocolate chip cookie．Favorite desserts are chocolate cream pie and，of course，an ice cream sundae with hot fudge sauce．
21．It wasDthat discovered sugar could remove the bitter taste of cacao．
A．The workers in a chocolate factory
B．The Spaniards
C．Americans
D．The owner of a chocolate factory
22．According to the passage which of the following statements is true？D
A．Nobody had the idea of adding sugar until the sixteenth century．
B．The word"chocolate"comes from a Mexican word．
C．The beans taste so bitter that even the monkeys like them．
D．Workers must dry and roast the beans to remove the bitter taste．
23．The Spaniards think that cacao was a medicine becauseA
A．it was strong and bitter．
B．it was good for digestion．
C．it cured man's diseases．
D．it was a kind of drink for good health．
24．Which is the right time order of the events about chocolate？C
a．Chocolate became a cheap and popular drink in England．
b．A factory made the first solid block of sweetened chocolate．
c．The Spaniards started drinking cacao．
d．It was found that sugar removed the bitter taste of cacao．
e．A factory mixed milk and chocolate together．
A．a-b-c-d-e　
B．c-d-e-b-a　　
C．c-d-a-b-e　　
D．c-d-b-e-a．

查看答案和解析>>

科目：高中英语 来源： 题型：阅读理解

8．How to deal with waste has been a problem since humans started producing it．As more and more people choose to live close together in cities，the waste-disposal（处理）problem becomes increasingly difficult．
During the eighteenth century，it was usual for several neighboring towns to get together to select a faraway spot as a dump site（垃圾填埋场）．Residents or trash haulers（垃圾拖运者）would transport household rubbish，rotted wood，and old possessions to the site．Periodically（定期的）some of the trash was burned and the rest was buried．The unpleasant sights and smells caused no problem because nobody lived close by．
Factories，mills，and other industrial sites also had waste to be disposed of．Those located on rivers often just dumped the unwanted remains into the water．Others built huge burners with chimneys to deal with the problem．
Several facts make these choices unacceptable to modern society．The first problem is space．Dumps，which are now called landfills，are most needed in heavily populated areas．Such areas seldom have empty land suitable for this purpose．Land is either too expensive or too close to residential（住宅区的）neighborhoods．Long-distance trash hauling has been a common practice，but once farm areas are refusing to accept rubbish from elsewhere，cheap land within trucking distance of major city areas is almost nonexistent．
Awareness of pollution dangers has led to more strict rules of waste disposal．Pollution of rivers，ground water，land and air is a price people can no longer pay to get rid of waste．The amount of waste，however，continues to grow．
Recycling efforts have become commonplace，and many towns require their people to take part．Even the most efficient recycling programs，however，can hope to deal with only about 50per cent of a city's reusable waste．
27．The most suitable title for this passage would beB．
A．Places for Disposing Waste
B．Waste Disposal Problem
C．Ways of Getting Rid of Waste
D．Waste Pollution Dangers
28．During the 18th century，people disposed their waste in many ways EXCEPT forA．
A．recycling it
B．burying it
C．burning it
D．throwing it into rivers
29．What can be inferred from the fourth paragraph？C
A．Farm areas accept waste from the city in modern society．
B．There is cheap land to bury waste in modern society．
C．Ways to deal with waste in modern society stay the same．
D．It is impossible to find space to bury waste in modern society．
30．The main purpose of writing this article is to．D
A．tell people a better way to get rid of the waste．
B．warn people of the pollution dangers we are facing．
C．call on people to take part in recycling programs．
D．draw people's attention to waste management．

查看答案和解析>>

科目：高中英语 来源： 题型：阅读理解

5．Being Authoritative （权威的） Parents
Phrases like"tiger mom"and‘‘helicopter parent"have made their way into everyday language．Many of us find ourselves drawn to the idea that with just a bit more parental hard work and effort，we might turn out children with bright futures．But is there anything wrong with a kind of"overparenting style"？
Parental involvement has a long history of being studied．Many of the studies，conducted by Diana Baumrind，a famous psychologist at the University of California，Berkeley，have found that a good parent is the one who is involved and reacts to her child in a positive way，who sets high expectations but gives her child independence．These"authoritative parents"appear to hit the sweet spot of parental involvement and generally raise children who do better academically，psychologically and socially than children whose parents are not strict and less involved，or controlling and more involved．Why is this parenting style so successful？
Authoritative parents actually help improve motivation in their children．Carol Dweck，a social psychologist at Stanford University，has done research that indicates why authoritative parents raise more motivated children．In a typical experiment，Dr．Dweck takes young children into a room and asks them to solve a simple puzzle．Most do so with little difficulty．But then Dr．Dweck tells some，but not all，of the kids how clever they are．As it turns out，the children who are not told they're smart are more motivated to solve increasingly difficult puzzles．They also show higher levels of confidence and show greater progress in puzzle-solving．
As the experiment suggests，praising children's talents and abilities seems to shake their confidence．Dealing with more difficult puzzles carries the risk of losing one's status as"smart"．Dr．Dweck's work strongly supports that of Dr．Baumrind，who also found that reasonably supporting a child's independence and limiting interference （干涉） causes better academic and emotional results．
The central task of growing up is to develop a sense of self that is independent and confident．If you treat your young child who is just learning to walk as if she can't walk，you reduce her confidence．Allowing children to make mistakes is one of the greatest challenges of parenting．It is easier when they are young．The potential mistakes carry greater risks，and part of being a parent is reducing risk for our children．
25．According to the passage，a"tiger mom"D．
A．helps her children realize their dreams
B．speaks her children's everyday language
C．places reasonable expectations on her children
D．pays close attention to her children's experiences
26．It is implied that controlling style of parenting mayB．
A．face more challenges of children
B．cause more problems in children
C．develop independence in children
D．lead to children's academic success
27．The example of the children doing the puzzles suggests thatC．
A．a good game plays a big role in training young minds
B．puzzle-solving can give children the motivation they need
C．overpraising makes children less motivated and confident
D．bright children usually show less confidence in difficult games
28．The last paragraph tells us thatD．
A．children should not be given much freedom
B．parents should not increase the risk of challenging
C．children should correct mistakes with the help of their parents
D．parents should allow their children to learn from the mistakes．

查看答案和解析>>

科目：高中英语 来源： 题型：阅读理解

11．Most likely，you aren't the family breadwinner．But doing a small job or getting a weekly allowance （零花钱） would put some money in your pocket．For kids and grown-ups alike，money is easy to spend．If you aren't careful，it can be going in no time．
　　Being responsible with your money is an important skill to learn-and the sooner you start the better．Whether you are tracking your spending or saving for something special，creating a budget can help you deal with your expenses and plan for the future．All you need are paper and a pencil-and some self-control．
　　First，take a look at our sample monthly budget．Then，use a separate sheet of paper to plan your own．In the first two columns （栏），list your sources （来源） of income and how much you expect to earn from them．In the third and fourth columns，list what you expect to spend your money on and the amount．
　　The left-hand total should be more than or equal to the right-hand total．If it is，you have an effective budget．Budgets are not complex，but sticking to them can be tough．When planning your budget，be realistic about your expenses．If you know that you drop 18 at a movie，don't write 12 in that space simply because you wish you were spending less．
　　If you are eyeing a big purchase，such as a 150 skateboard，spend less and save more until you have the total amount．No matter how attractive it may be，avoid spending your savings．One day，you will thank yourself!

Monthly Income	Amount	Monthly Expense	Amount
Allowance	20.00	Snacks	20.00
Money earned selling drinks	25.00	Music downloads	12.00
Money earned babysitting	12.50	Movies	18.00
Money earned delivering newspapers	30.00	Video rental	10.00
Total	87.50	Total	66.00

56．Who is the passage written for？A
A．Children．B．Parents．C．Breadwinners．D．Bank managers．
57．The purpose of making a budget is to help peopleC．
A．learn to be realistic
B．increase their saving
C．manage their money well
D．test their power-control
58．What should people do when planning a budget？A
A．Fill in the expenses as they really are
B．Avoid spending money on expensive things．
C．Set aside a fixed amount of money as savings．
D．List income and expenses on two pieces of paper．
59．Which of the following budgets is effective？D
A．

Monthly Income	Amount	Monthly Expense	Amount
Allowance	20.00	Money earned walking dogs	20.00
Bus fares	40.00	Movies	28.00
Total	60.00	Total	48.00

B．

Monthly Income	Amount	Monthly Expense	Amount
Allowance	20.00	Movies	30.00
Money earned washing cars	10.00	Bus fares	10.00
Total	30.00	Total	40.00

C．

Monthly Income	Amount	Monthly Expense	Amount
Allowance	27.50	Money earned brushing shoes	22.00
Money earned washing dishes	22.50	Birthday gifts	28.00
Total	50.00	Total	50.00

D．

Monthly Income	Amount	Monthly Expense	Amount
Allowance	26.00	Video rental	22.00
Money earned doing yard work	24.00	Birthday gifts	28.00
Total	50.00	Total	50.00

60．The passage mainly tells usB．
A．the importance of making a budget
B．how to make a budget
C．how to form good habits
D．how to spend money．

查看答案和解析>>

同步练习册答案

练习册

高中

初中

小学