閱讀理解。

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 send commands to machines.

Recently, two researchers, Jose Millan 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(頭皮) 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. Millan, 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.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.

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 profits 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 Injuries

練習冊系列答案
相關習題

科目：高中英語 來源：2015-2016學年江西省高一下學期期未考試英語試卷（解析版） 題型：閱讀理解

Apple Seeds

Circulation(發(fā)行量) : 1 Year, 9 Issues

Cover Price: $44.55

Price For You: $33.95

Product Description: Apple Seeds is an award-winning magazine filled with stories for kids aged from 7 to 9．The cover is very soft, providing durability(耐用性) that allows each issue to be enjoyed for many years to come． Besides, there is a big surprise for you — it’s being sold at a more favorable discount than usual.

Better Life

Circulation: 1 Year, 12 Issues

Cover Price: $44.55

Price For You: $15.00

Product Description: Designed for those who have a strong interest in personal lifestyle, Better Life is America’s complete home and family service magazine． It offers help with food, recipes, decorating, building, gardening, family health, money management, and education．

Humor Times

Circulation: 1 Year, 12 Issues

Cover Price: $36．00

Price For You: $11．95

Product Description: Humor Times Magazine is for those who love to laugh! Full of cartoons and humor columns, it shows up in your mailbox once a month and keeps you smiling all year round! In today’s world, you need a reason to laugh． So let’s find it in Humor Times．

News China

Circulation: 1 Year, 12 Issues

Cover Price: $47．88

Price For You: $19．99

Product Description: News China Magazine is the English edition of China Newsweek． The magazine covers the latest Chinese domestic news in politics, business, society, environment, culture, sports and travels, etc. It is the first comprehensive news magazine for readers interested in China.

1.What do we know about Apple Seeds?

A. The soft cover enables it to be read and kept long.

B. It can be purchased as an award for your children.

C. It offers the biggest discount among all the magazines.

D. The magazine is going to surprise you for many years.

2.What kind of people may buy News China?

A. People who have an interest in personal lifestyle of the Chinese.

B. People who have a strong sense of humor and love to laugh.

C. People who want to enlarge the knowledge of their kids.

D. People who are interested in China’s politics, business and culture.

3.Better Life can help you in ________.

A. beautifying your house

B. finding interesting stories for your kids

C. ordering food from restaurants

D. learning about sports and travels

查看答案和解析>>

科目：高中英語 來源：2017屆高考英語一輪總復習題型重組專題練3英語試卷（解析版） 題型：完形填空

完形填空。

The long line of rush hour traffic wound its way down the rain?slick(濕滑的) street as I glanced nervously at my watch.5：30! Nothing had gone right all day.This traffic jam seemed the perfect ending to a(n) ______ day.

I sighed loudly，______ there was no one to hear.Lately my life seemed ______ more than a never?ending ______ of regular tasks.Surely there was more to living than this.I guess I was simply too tired to look for it.

And then, looking ______， I saw him.

The lone(孤零零) flagman was standing ______ the street，______ directing four driving ways of traffic as they ______ into one.But there was something ______ about this flagman, and as my car ______， I realized what it was.

Standing among dozens of impatient motorists, he was smiling and ______ at every driver that passed.

As I sat waiting my ______ in my warm car, I began to feel ______.If this man, who did nothing all day but watch one car after another______， could stand in the cold rain hour after boring hour and still have a friendly ______ for every single person who passed, what right did I have to ______ my life?

It was ______ my turn to pass the flagman.“Thank you，” I mouthed ______ the window.He smiled and nodded and I drove on, spirits lifted，______ changed.And in the rear view mirror(后視鏡) I could see him, raising his hand and ______ to every car that passed.

1.A．dangerous B．enjoyable C．horrible D．interesting

2.A．though B．so C．if D．when

3.A．everything B．a(chǎn)nything C．nothing D．something

4.A．cycle B．discovery C．expectation D．sacrifice

5.A．right B．left C．backward D．forward

6.A．next to B．in the middle of C．a(chǎn)way from D．a(chǎn)head of

7.A．wisely B．eagerly C．patiently D．calmly

8.A．exchanged B．combined C．crashed D．jumped

9.A．common B．wrong C．outstanding D．unusual

10.A．a(chǎn)pproached B．started C．stopped D．passed

11.A．shouting B．staring C．a(chǎn)iming D．waving

12.A．order B．turn C．request D．fortune

13.A．a(chǎn)nnoyed B．delighted C．a(chǎn)shamed D．disappointed

14.A．go by B．go up C．get along D．get through

15.A．glance B．gesture C．move D．treat

16.A．set aside B．burst into C．look down upon D．complain about

17.A．certainly B．luckily C．finally D．merely

18.A．through B．from C．off D．in

19.A．a(chǎn)nxiety B．a(chǎn)ttitude C．experience D．doubt

20.A．talking B．explaining C．whispering D．greeting

查看答案和解析>>

科目：高中英語 來源：2017屆高一輪總復習模塊沖關評價練2英語試卷（解析版） 題型：短文改錯

假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有10處語言錯誤，每句中最多有兩處。每處錯誤僅涉及一個單詞的增加、刪除或修改。

增加：在缺詞處加一個漏字符號(∧)，并在其下面寫出該加的詞。

刪除：把多余的詞用斜線(\)劃掉。

修改：在錯的詞下劃一橫線，并在該詞下面寫出修改后的詞。

注意：1.每處錯誤及其修改均僅限一詞；

2．只允許修改10處，多者(從第11處起)不計分。

Dear Tom，

How are you？I am just writing to tell you I had wonderful time at your place in New York.

I arrived home, safely and sound. I have something to ask for you.I have been looking through my bags for my favorite red shirt, or I can't find it somewhere.I'm sure I might have left it at your place. Could you look around your house for it? By the way, I am planning my parents' wedding anniversary celebration. I had already invited you and your parent.I wonder whether you would like to come to Chicago this time. What do you think of it？Take care of you and write to me soon.Giving my regards to Uncle Bernard and Aunt Norah.

Love，

Diana

查看答案和解析>>

科目：高中英語 來源：2017屆高一輪總復習模塊沖關評價練2英語試卷（解析版） 題型：閱讀理解

閱讀下列短文，從每題所給的四個選項(A、B、C和D)中，選出最佳選項。

Every Wednesday, I go to Cantata Adult Life Services，a local retirement community in Brookfield, Illinois, US, with my classmates to do community service.

After my very first visit to Cantata，my life changed forever.That may sound a bit dramatic, but volunteering with the elderly has changed my views on life.

Our visits last about an hour, and we bring 25?30 students every time. We play board games and cards with the residents while we're there.

You can watch all the movies and TV shows you want about “l(fā)ife back then”， but nothing compares to talking to the people who were actually there. Just hearing their stories has touched me in a way I never thought possible.

Whether it was talking to 98?year?old “Hurricane Hilda” about her glory days as a roller skater or chatting with Lou about the times she danced with a famous actor, I was completely attracted by every single memory the residents wanted to share with me.

Even the residents who don't have amazing memories make the experience satisfying.I remember visiting Mrs. Robinson. She couldn't recall much about her past, but she told me she'd never forget how kind I was just to listen to her “rambling(漫談)”. It made me realize that it's the little things that make life worth living. That's something I won't forget anytime soon.

If there's one thing I've realized in my three years of visiting Cantata, it's that presence—just being there—means more than anything to many of the residents. And despite how busy our lives are, there's always time to make someone's day.

For me, it feels great to be a source of happiness, a smile on a bad day or a listening ear for old memories. And at the end of the day, that's all that matters.

It's easy to feel like you don't have anything in common with the elderly—especially when you're a teenager. But that's not true at all.

I hate to be overly clichéd(陳詞濫調(diào)的) here, but age really is just a number. As young adults, it's important for us to realize this sooner rather than later.We can learn a lot from the elderly, and they can often benefit from teenagers too.

1.What do the volunteers do according to the passage?

A．They share everything with the residents.

B．They play board games and cards with the residents.

C．They watch the residents play games.

D．They buy gifts for the residents.

2.According to the writer, what is the most important thing that volunteers can do for the elderly?

A．Playing with them.

B．Benefiting from them.

C．Helping them.

D．Being there with them.

3.What does the writer want to tell us by writing this passage?

A．We don't have anything in common with the elderly.

B．Age is just a number.

C．It is important to help the elderly.

D．Young adults and the elderly can benefit from each other.

查看答案和解析>>

科目：高中英語 來源：2015-2016學年考前閱讀、完型與寫作之完型填空思路點撥英語試卷（解析版） 題型：完形填空

完形填空。

____ January 26, Billy and three other children had died. Twenty more were . Nome’s town officials came up with a(n) . They would have the medicine sent by from Anchorage to Nenana. From there, dogsled(狗拉雪橇) drivers—known as “mushers”—would it to Nome in a relay(接力).

The race began on January 27. The first musher, Shannon, picked up the medicine from the train at Nenana and rode all night. he handed the medicine to the next musher, Shannon’s face was black from the extreme cold.

1.A. From B. On C. By D. After

2.A. tired B. upset C. pale D. sick

3.A. plan B. excuse C. message D. topic

4.A. air B. rail C. sea D. road

5.A. carry B. return C. mail D. give

6.A. Though B. Since C. When D. If

查看答案和解析>>

科目：高中英語 來源：2015-2016學年考前閱讀、完型與寫作之書面表達命題揭秘英語試卷（解析版） 題型：書面表達

假定你是李華，你校攝影俱樂部（photography club）將舉辦國際中學攝影展。請給你的英國朋友Peter寫封信，請他提供作品。信的內(nèi)容包括：

1．主題：環(huán)境保護；

2．展覽時間；

3．投稿郵箱：intlphotoshow@gmschool.com.

注意：

1．詞數(shù)100左右；

2．可以適當增加細節(jié)，以使行文連貫。

假設你是新華中學的學生李華，你和在上海上學的英國朋友Tom約好下周末去北京旅游，但你因故不能赴約。請根據(jù)以下要點用英語給他寫一封電子郵件：

1. 表示歉意;

2. 解釋原因;

3. 另約時間。

寫作指導：這是一篇應用文，要求寫一封道歉信。寫作要求只給出了大體的框架，因此具有很大的開放性。道歉信主要是向收信人表明歉意，請求對方諒解自己的過失。寫道歉信時要明確不是找借口為自己辯護，而是承認自己的過錯并提出彌補過錯的具體建議和方法。此類信件的關鍵是用詞準確，表達真誠。在寫作時可以根據(jù)提示的要求按照三段式的模式布局謀篇。

首段：重述自己做錯的事，表示歉意。

主體段落：說明道歉的具體原因，應盡量詳細描述做錯事的經(jīng)過。寫信時應該注意在申述理由時要照顧讀信人的感受，切忌強詞奪理。

結(jié)尾段：再次表明承認錯誤的態(tài)度，請求收信人的諒解。也可以提出補救的辦法。

查看答案和解析>>

科目：高中英語 來源：2015-2016學年考前閱讀、完型與寫作之七選五閱讀命題揭秘（解析版） 題型：七選五

七選五。

Tips for Cooking on a Tight Schedule

From my experience , there are three main reasons why people don’t cook more often :ability , money , and time 1. .Money is a topic I’ll save for another day .So today I want to give you some wisdom about how to make the most of the time you spent in the kitchen .Here are three tips for great cooking on a tight schedule :

1. Think ahead .The moments when I think cooking is a pain are when I’m already hungry and there’s nothing ready to eat .So think ahead of the coming week .When will you have time to cook ?Do you have the right materials already ? 2. .

2. Make your time worth it .When you do find time to cook a meal , make the most of it and save yourself time later on .Are you making one loaf of bread ? 3. .It takes around the same amount of time to make more of something .So save yourself the effort for future meal .

3. 4. This may surprise you , but one of the best tools for making cooking worth your time is experimentation .It gives you the chance to hit upon new ideas and recipes that can work well with your appetite and schedule. The more you learn and the more you try, the more ability you have to take control of your food and your schedule.

Hopefully that gives you a good start. 5. And don’t let a busy schedule discourage you from making some great changes in the way you eat and live!

A. Try new things.

B. Ability is easily improved.

C. Make three or four instead.

D. Understand your food better.

E. Cooking is a burden for many people.

F. Let cooking and living simply be a joy rather than a burden.

G. A little time planning ahead can save a lot of work later on.

查看答案和解析>>

科目：高中英語 來源：2015-2016學年考前閱讀、完型與寫作之閱讀理解命題揭秘英語試卷（解析版） 題型：閱讀理解

閱讀理解。

The freezing Northeast hasn’t been a terribly fun place to spend time this winter, so when the chance came for a weekend to Sarasota, Florida, my bags were packed before you could say “sunshine”. I left for the land of warmth and vitamin C(維生素C), thinking of beaches and orange trees. When we touched down to blue skies and warm air, I sent up a small prayer of gratefulness. Swimming pools, wine tasting, and pink sunsets(at normal evening hours, not 4 in the afternoon) filled the weekend, but the best part - particularly to my taste, dulled by months of cold- weather root vegetables- was a 7 a.m. adventure to the Sarasota farmers’ market that proved to be more than worth the early wake-up call.

The market, which was founded in 1979, sets up its tents every Saturday from 7:00 am to 1 p.m., rain or shine, along North Lemon and State streets. Baskets of perfect red strawberries; the red-painted sides of the Java Dawg coffee truck; and most of all, the tomatoes: amazing, large, soft and round red tomatoes.

Disappointed by many a broken, vine-ripened(蔓上成熟的) promise, I’ve refused to buy winter tomatoes for years. No matter how attractive they look in the store, once I get them home they’re unfailingly dry, hard, and tasteless. But I homed in, with uncertainty, on one particular table at the Brown’s Grove Farm’s stand, full of fresh and soft tomatoes the size of my fist. These were the real deal- and at that moment, I realized that the best part of Sarasota in winter was going to be eating things that back home in New York I wouldn’t be experiencing again for months.

Delighted as I was by the tomatoes in sight, my happiness deepened when I learned that Brown’s Grove Farm is one of the suppliers for Jack Dusty, a newly opened restaurant at the Sarasota Ritz Carlton, where - luckily for me - I was planning to have dinner that very night. Without even seeing the menu, I knew I’d be ordering every tomato on it.

1. What did the author think of her winter life in New York?

A. Exciting. B. Boring.

C. Relaxing. D. Annoying.

2. What made the author’s getting up late early worthwhile?

A. Having a swim. B. Breathing in fresh air.

C. Walking in the morning sun. D. Visiting a local farmer’s market.

3. What can we learn about tomatoes sold in New York in winter?

A. They are soft. B. They look nice.

C. They taste great. D. They are juicy.

4. What was the author going to that evening?

A. Go to a farm. B. Check into a hotel.

C. Eat in a restaurant. D. Buy fresh vegetables.

查看答案和解析>>

同步練習冊答案