You can’t make a call or send a text on your mobile phone in the US town of Green Bank, West Virginia. Wireless Internet is outlawed, as is Bluetooth. As you approach the tiny town on a two-lane road that snakes through the mountains, your mobile phone signal drops out, and your radio stops working. The rusted pay phone on the north side of town is the only way for a visitor to reach the rest of the world. It’s a pre-modern place by design, lacking of the latest technologies that define life today.

The reason for the town’s empty airwaves is apparent the moment you arrive. It’s the Robert C. Byrd telescope, also known as the GBT, a shiny white, 147-metre-tall satellite dish. It’s the largest of its kind in the world and one of nine in Green Bank, all of them government owned and operated by the National Radio Astronomy Observatory (NRAO).

You don’t look through these kinds of telescopes. They’re radio telescopes, so instead of looking for distant stars, they listen for them. There’s a long line of astronomers all over the world who want to use the telescope which is so sensitive that it could hear a single snowflake hitting the ground 1,000 miles away.

Such a sensitive listening tool needs total technological silence to operate, so in 1958 the US government created a National Radio Quiet Zone, a 33,000 km2 area covering Green Bank where, to this day, electronic and radio signals are forbidden every hour of every day.

People who live within a 15km of the Green Bank telescope are allowed to use landline telephones, wired Internet and cable televisions, but microwave ovens, wireless Internet and radios are forbidden. You can have a mobile phone, but you won’t get a signal.

Because of how much its way of life varies from the rest of America, Green Bank seems to be a somewhat isolated (隔絕), even alien place. For locals, the technology ban is annoying. For others who come to Green Bank for a little rest and relaxation, the town has become a refuge.

1.What do we know about the town of Green Bank from Paragraph 1?

A. It’s located at the base of a large mountain.

B. It is geographically and technologically isolated.

C. Its telecommunications are affected by its geography.

D. Many people live in the town and its surrounding areas.

2.How does the GBT work?

A. It traps light waves in its huge dish.

B. It stops all electronic and radio signals.

C. It receives pictures from space satellites.

D. It listens for and receives noises from space.

3.What equipment are locals of the Green Bank allowed to use?

A. Cable TV, wired Internet and radio.

B. Landline phones, wired Internet and cable TV.

C. Public phones, wireless Internet and mobile phones.

D. Landline phones, microwave ovens and cable internet.

4.What does the underlined word “refuge” in the last paragraph most probably mean?

A. A place of escape. B. A source of confusion.

C. An area of interest. D. A sign of danger.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:內(nèi)蒙古2016-2017學(xué)年高二下學(xué)期期中考試英語試卷 題型:閱讀理解

Going green seems to be fad (時(shí)尚) for a lot of people these days. Whether that is good or bad, we can't really say, but for the two of us, going green is not a fad but a lifestyle.

On April 22, 2011, we decided to go green every single day for an entire year. This meant doing 365 different green things, and it also meant challenging ourselves to go green beyond easy things. Rather than recycle and reduce our energy, we had to think of 365 different green things to do and this was no easy task.

With the idea of going green every single day for a year, Our Green Year started. My wife and I decided to educate people about how they could go green in their lives and hoped we could show people all the green things that could be done to help the environment. We wanted to push the message that every little bit helps.

Over the course of Our Green Year, we completely changed our lifestyle. We now shop at organic(有機(jī)的)stores. We consume less meat, choosing green food. We have greatly reduced our buying we don't need. We have given away half of what we owned through websites. Our home is kept clean by vinegar and lemon juice, with no chemical cleaners. We make our own butter, enjoying the smell of home-made fresh bread. In our home office anyone caught doing something ungreen might be punished.

Our minds have been changed by Our Green Year. We are grateful for the chance to have been able to go green and educate others. We believe that we do have the power to change things and help our planet.

1.What might be the best title for the passage?

A. Celebrating Our Green Year.

B. Protecting the Planet.

C. Keeping Open-Minded

D. Going Green.

2.It was difficult for the couple to live a green life for the whole year because_________.

A. they needed to perform unusual green tasks

B. they didn't know how to educate other people

C. they were unwilling to reduce their energy

D. they were expected to follow the green fad

3.What did the couple do over the course of Our Green Year?

A. They ignore others' ungreen behavior.

B. They tried to get out of their ungreen habits.

C. They chose better chemical cleaners.

D. They sold their home-made food.

4.What can we infer from the last paragraph?

A. The government will give support to the green people.

B. Some people disagree with the couple's green ideas.

C. The couple may continue their project in the future.

D. Our Green Year is becoming a national campaign.

查看答案和解析>>

科目:高中英語 來源:2017年高考原創(chuàng)押題卷(一)英語試卷 題型:完形填空

I stopped speaking because I found myself arguing all the time. After witnessing an oil spill in San Francisco Bay, I ______ using vehicles and started walking everywhere as a statement about ______. I often kept getting into ______ about whether one could make a ______ and argued about how everyone should do what I was doing.

On my 27th birthday, I decided not to speak for one day, as a kind of ______ to my community. When I woke up the next day, I didn't see any ______ to speak, so I didn't.

A week later, people started getting ______. My girlfriend wanted me to stop. My parents even got angry with me. But I didn't change my idea.

On the 10th anniversary of not ______, I spoke for a day. I didn't want it to feel as if it wasn't a ______. I was in California and I ______ my parents. My mother picked up and thought it was my brother ______ around. I had to prove it was me by telling her something only we knew.

______ not speaking for 17 years, I felt I had something to say. People came to ______ me. My first words were, “Thank you for being here.” But I didn't recognize my ______.

Having listened to thousands of people, I realized we had a ______ view of the environment. People always think it's about planting more trees, but it's more than that; it's about how we treat each other, and that also ______ economic equality and civil rights.

Now I give talks around the world. I started using ______ again. I still practise being ______ every morning. It reminds me to listen ______; not to judge what I think I'm hearing, but to try to understand what people are really ______.

1.A. turned to B. thought about C. gave up D. insisted on

2.A. pollution B. waste C. exercise D. support

3.A. fights B. traps C. dilemmas D. debates

4.A. promise B. difference C. plan D. living

5.A. encouragement B. belief C. punishment D. gift

6.A. reason B. sign C. chance D. language

7.A. puzzled B. disappointed C. worried D. interested

8.A. arguing B. riding C. speaking D. failing

9.A. warning B. disadvantage C. strength D. choice

10.A. missed B. called C. visited D. thanked

11.A. walking B. coming C. messing D. hanging

12.A. Though B. Once C. If D. After

13.A. hear B. comfort C. instruct D. help

14.A. parents B. voice C. photo D. handwriting

15.A. valid B. correct C. narrow D. universal

16.A. proves B. includes C. improves D. insures

17.A. phones B. computers C. loudspeakers D. vehicles

18.A. silent B. deaf C. friendly D. patient

19.A. constantly B. properly C. largely D. merely

20.A. worrying B. doing C. advising D. saying

查看答案和解析>>

科目:高中英語 來源:湖北省襄陽市2017屆高三第二次適應(yīng)性考試(5月)英語試卷 題型:短文填空

Wood-block printing first appeared in the early Tang period. During the Song dynasty, the technique of block printing was very advanced. Books were 1. (beautiful) printed. Even today the books 2. (print) at the time are valuable and treasured by libraries and book collectors.

However, block printing 3. (be) not very convenient. Every two pages of a book had to be carved on a wood block, and a big book would require many blocks. Besides, there had to be large places for storing the books. 4. (overcome) these shortcomings, Bi Sheng invented the movable type during the years between 1041 and 1048. One word was carved on one piece of clay, 5. was hardened with fire. Then clay characters were set on 6. iron plate according to the text of a book. Then ink was applied to them and 7. (sheet) of paper spread over them, and the printing was done. Bi Sheng’s invention made printing faster and easier 8. before. Later, movable type of metal and wood was made and widely used.

The technique of printing was gradually known to other Asian countries and Europe. The great influence printing had 9. the advance of civilization is too clear to need any 10. (explain).

查看答案和解析>>

科目:高中英語 來源:廣東省廣州市2017屆英語高考沖刺題(二) 題型:書面表達(dá)

假定你是李華。從學(xué)校通告欄上看到某公司招聘海外游學(xué)團(tuán)領(lǐng)隊(duì)的廣告,你很感興趣。請寫一封英文電子郵件咨詢此職位的工作職責(zé)、資歷要求及報(bào)酬等相關(guān)信息。

注意:1. 詞數(shù)100左右;

2. 可以適當(dāng)增加細(xì)節(jié),以使行文連貫。

3. 參考詞匯:通告欄 notice board;游學(xué)團(tuán) study tour

注:請各校自行制作答題卡,書面表達(dá)內(nèi)容可參考如下:

Dear Sir/Madam,

_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours sincerely,

Li Hua

查看答案和解析>>

科目:高中英語 來源:黑龍江省哈爾濱市2017屆高三下學(xué)期第四次模擬考試英語試卷 題型:短文改錯(cuò)

假定英語課上英語老師要求同桌之間互相修改作文,請你修改你同桌的以下作文。

文中共有10處語言錯(cuò)誤,每句中最多有兩處。錯(cuò)誤涉及一個(gè)單詞的增加、刪除或修改。

刪除:把多余的詞用斜線(\)劃掉。

增加:在缺詞處加一個(gè)漏字符號(∧),并在該詞下面寫出該加的詞。

修改:在錯(cuò)的詞下劃一橫線,在該詞下面寫出修改后的詞。

注意:1、每處錯(cuò)誤及修改均僅限一詞。

2、只允許修改10處,多者(從11處起)不計(jì)分。

Dear friends,

It is a great honor to share with you my experience in making English speeches.

To tell a truth, my spoken English used to be a big headache for me. Due to my terrible pronunciation, I often got misunderstood or even laughed by others. I never succeed in speech competitions. Therefore, I refused to give up. Every day I spent two hours listen to English programs to improve my oral skills. To my joy, my effort was finally paid off. I made steadily progress and managed to win prizes in some speech competition.

So problems can help us grow if we deal with it bravely and properly. This is which I've learned from my experience.

查看答案和解析>>

科目:高中英語 來源:黑龍江省哈爾濱市2017屆高三下學(xué)期第四次模擬考試英語試卷 題型:閱讀理解

John H. Johnson was born in a black family in Arkansas city in 1918. His father died in an accident when John was six. He was reaching the high school age, but his hometown offered no high school for blacks.

Fortunately he had a strong-willed caring mother. John remembered that his mother told him many times, “Son, you can be anything you want really to be if you just believe.” She told him not to depend on others, including his mother. “You have to earn success, ” she said. “All the people who work hard don’t succeed, but the only people who do succeed are those who work hard.”

These words came from a woman with less than a third grade education. She also knew that believing and hard work don’t mean everything. So she worked hard as a cook for two years to save enough to take her son, who was then 15, to Chicago.

Chicago in 1933 was not the promised land that black southerners were looking for. John’s mother and stepfather could not find work. But here John could go to school, and here he learned the power of words—as an editor of the newspaper and yearbook at Du Sable High School his wish was to publish a magazine for blacks.

While others discouraged him, John’s mother offered him more words to live by. “Nothing beats a failure but a try. ”She also let him pawn(典當(dāng))her furniture to get the $ 500 he needed to start the Negro magazine.

It is natural that difficulties and failures followed John closely until he became very successful. He always keeps his mother’s words in mind. “ Son, failure is not in your vocabulary!”

Now John H. Johnson is one of the 400 richest people in America—worth $ 150 million.

1.John’s mother decided to move to Chicago because _____.

A. his father died when John was very young

B. life was too hard for them to stay on in their hometown

C. John needed more education badly

D. there were no schools for Negroes in their hometown

2.John’s mother _______.

A. didn’t believe in or depend on others

B. thought one could be whatever one wanted to be

C. believed one would succeed without working hard

D. thought no one could succeed without working hard

3.The underlined sentence “Nothing beats a failure but a try. ”means _____.

A. if you try, you would succeed

B. a failure is difficult to beat, even if you try

C. a try is always followed by a failure

D. no failure can be beaten unless you try

查看答案和解析>>

科目:高中英語 來源:江西省2017屆高三全真模擬英語試卷 題型:閱讀理解

Imagine that you’re looking at your company-issued smartphone and you notice an e-mail from Linkedln: “These companies are looking for candidates like you!” You aren’t necessarily searching for a job, but you’re always open to opportunities, so out of curiosity, you click on the link. A few minutes later your boss appears at your desk. “We’ve noticed that you’re spending more time on Linkedln lately, so I wanted to talk with you about your career and whether you’re happy here,” she says. Uh-oh.

It’s an awkward scene. Attrition (損耗) has always been expensive for companies, but in many industries the cost of losing good workers is rising, owing to tight labor markets. Thus companies are making greater efforts to predict which workers are at high risk of leaving so that managers can try to stop them. Methods range from electronic monitor to well-designed analyses of employees’ social media lives.

Some of this work may be a reason to let employees to quit. In general, people leave their jobs because they don’t like their boss, don’t see opportunities for promotion or growth, or are offered a higher pay; these reasons have held steady for years.

New research conducted by CEB, a Washington-based technology company, looks not just at why workers quit but also at when. “We’ve learned that what really affects people is their sense of how they’re doing compared with other people in their peer group, or with where they thought they would be at a certain point in life, says Brian Kropp, who heads CEB’s HR practice. “We’ve learned to focus on moments that allow people to make these comparisons.”

Technology also provides clues about which star employees might be eyeing the exit. Companies can tell whether employees using work computers or phones are spending time on (or even just opening e-mails from) career websites, and research shows that more firms are paying attention to these things. Large companies have also begun searching for badge swipes (瀏覽痕跡)---- employees’ use of an ID to enter and exit the building or the parking garage---to identify patterns that suggest a worker may be interviewing for a job.

1.What can we infer about Linkedln in the text?

A. an e-mail B. a job from the Internet

C. a world-famous company D. a professional social network

2.According to the passage, how can companies prevent workers from quitting?

A. Companies can analyze workers’ social media lives.

B. Companies need to find out workers likely to quit.

C. Companies must try to reduce the cost of losing good workers.

D. Companies should be stricter with workers.

3.According to the research by CEB, which of the following might be the most probable reason for workers to quit their jobs?

A. Workers are always doing comparisons.

B. Not seeing opportunities for promotion.

C. To find a higher-paid job.

D. They don’t like their bosses.

4.What is the author’s purpose in writing the text?

A. To show a new trend in the job market.

B. To stress the role of new technologies.

C. To make a review on a phenomenon.

D. To tell us the leader’s concerns.

查看答案和解析>>

科目:高中英語 來源:北京市2016-2017學(xué)年高二下學(xué)期期中考試英語試卷 題型:單項(xiàng)填空

Either you or one of your assistants _________ to attend the meeting that is due tomorrow.

A. is B. are

C. have D. would

查看答案和解析>>

同步練習(xí)冊答案