Tracking Stations One night in February 1962, John H. Glenn, Jr., flew over Australia. The man in the Mercurycapsulewas alone, but friendly voices reached him by radio. Over the dark land 100 miles be 题目和参考答案——青夏教育精英家教网—

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Tracking Stations

One night in February 1962, John H. Glenn, Jr., flew over Australia. The man in the Mercury（水星）capsule（宇宙飞行容器）was alone, but friendly voices reached him by radio. Over the dark land 100 miles below, he saw sparkling lights. It marked the city of Perth, where people had turned on their lights as a greeting to him.

"In Friendship 7," Glenn radioed, "the lights show up very well. Thank everybody for turning them on." His capsule needed on to the east.

During his three orbits of the earth, Glenn could always reach one of the eighteen tracking stations. Some of them were on ships at sea. Others were in the United States.

Many of the stations had been built with the help of other countries. These countries allowed Americans to bring in radio equipment and set it up. Without the help of such lands as Nigeria, Zanzibar, and Mexico, there would have been breaks in the worldwide radio network. John Glenn, Jr., was the first American to orbit the earth. For his flight, the tracking network（跟踪网络）covered 60,000 land or statute miles（法定英里）. Five hundred men worked in the stations along the route. Since his flight, the network has grown. Today, it covers more than 100, 000 statute or land miles and has about one hundred stations. One-third of these stations are outside the United States.

66．This passage is mainly about________.

A．talking to ships at sea around the world

B．breaks in the worldwide network

C．the first American to orbit the earth

D．a satellite which fell into the ocean

67．From the passage we can see that________.

A．Friendship 7 stopped in Perth, Australia

B．all tracking stations are inside the United States

C．radio equipment is important in space flight

D．many people could see Glenn in his capsule when he made the flight

68．During his flight Glenn could always________.

A．see lights turned on the ground B．reach ships at sea

C．reach one of the tracking stations D．arrive at Mercury in his Friendship 7

69．Why did people in Perth turn on the lights?

A．They wanted to guide him to land.

B．It was too dark for them to see in the room.

C．They wanted to see the Friendship 7．

D．They wanted to greet Glenn.

70．Which of the following is NOT true?

A．Countries must work together to track satellites.

B．There are now about 30 tracking stations outside the United States.

C．The tracking network covers many more statute miles now than before.

D．Nobody has orbited the earth except Glenn.

66-70 CCCDD

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If it looks like a fish and swims like a fish, it usually is a fish. But not the new, lifelike robot fish developed by UK scientists, which have been swimming around the London Aquarium(水族馆) as they wait for their release off northern Spain in 2011.

Equipped with tiny chemical sensors(传感器),the fish will collect data on pollution in the port of Gijón and wirelessly send the information back to the control center.

“It’s a little lab onboard the fish,” said Rory Doyle, a scientist at BMT Group. The robots were designed, and are being built, by professor Huosheng Hu and his team at the University of Essex, UK.

The sensors will search for dangers such as chemical waste and will allow officials to map in real time the sources and effects of pollution, Doyle said. w_w w. k#s5_u.c o*m

He and his colleagues chose a fish design because hundreds of millions of years of evolution(进化) has created an energy-efficient creature, he said. “Nature has done it very, very well.” But copying such a successful design comes at a cost: nearly 29,000 u.s. dollars per robot. m

The fish, therefore, will be built “robust” enough to handle any possibilities, Doyle said. They can’t get caught in nets easily, for instance, and the tracking systems inside can help the robot fish avoid crashes with boats and other things in the way.

So far, it also seems unlikely the robot fish will be mistaken: At the London Aquarium, sharks swim away from the fake fish, possibly because they find the robots electromagnetic fields(电磁场) unpleasant, Doyle said. w_w w. k#s5_u.c o*m

At the same time, scientists are working to ensure that the sounds of the robots and other factors don’t disturb the natural environment, he added.

The robot fish was developed in order to_______. w. k#s5_u.c o*m

A．be displayed on a robot exhibition in Spain

B．be sent to London Aquarium as a gift

C．get information of ocean pollution

D．collect data on the fishes in deep sea

According to Doyle, the robot was designed into fish shape in order to_______.

A．cut the cost of the robot

B．make the robot beautiful

C．reduce the sounds of the robot

D．make the robot work better with less energy

We can infer from the passage that the robot fish______. k#s5_u.c o*m

A．would send pictures of sea life back

B．would not be looked on as a real fish by fishes

C．could swim much faster than fishes like sharks

D．could help find new forms of energy in the sea

The underlined word “robust” in Paragraph 6 probably means_____.

A．small and light B．big and heavy

C．smooth and soft D．strong and smart

Imagine you’re at a party full of strangers. You’re nervous. Who are these people? How do you start a conversation? Fortunately, you’ve got a thing that sends out energy at tiny chips in everyone’s name tag (标签). The chips send back name, job, hobbies, and the time available for meeting-whatever. Making new friends becomes simple.

This hasn’t quite happened in real life. But the world is already experiencing a revolution using RFID technology.

An RFID tag with a tiny chip can be fixed in a product, under your pet’s skin, even under your own skin. Passive RFID tags have no energy source-batteries because they do not need it. The energy comes from the reader, a scanning device, that sends out energy (for example, radio waves) that starts up the tag immediately.

Such a tag carries information specific to that object, and the data can be updated. Already, RFID technology is used for recognizing each car or truck on the road and it might appear in your passport. Doctors can put a tiny chip under the skin that will help locate and obtain a patient’s medical records. At a nightclub in Paris or in New York the same chip gets you into the VIP section and pays for the bill with the wave of an arm.

Take a step back: 10 or 12 years ago, you would have heard about the coming age of computing. One example always seemed to surface: Your refrigerator would know when you needed to buy more milk. The concept was that computer chips could be put everywhere and send information in a smart network that would make ordinary life simpler.

RFID tags are a small part of this phenomenon. “The world is going to be a loosely coupled set of individual small devices, connected wirelessly,” predicts Dr. J. Reich. Human right supporters are nervous about the possibilities of such technology. It goes too far tracking school kids through RFID tags, they say. We imagine a world in which a beer company could find out not only when you bought a beer but also when you drank it. And how many beers. Accompanied by how many biscuits.

When Marconi invented radio, he thought it would be used for ship-to-shore communication. Not for pop music. Who knows how RFID and related technologies will be used in the future. Here’s a wild guess: Not for buying milk.

The article is intended to .

A. warn people of the possible risks in adopting RFID technology

B. explain the benefits brought about by RFID technology

C. convince people of the uses of RFID technology

D. predict the applications of RFID technology

We know from the passage that with the help of RFID tags, people .

A. will have no trouble getting data about others

B. will have more energy for conversation

C. will have more time to make friends

D. won’t feel shy at parties any longer

Passive RFID tags chiefly consist of .

A. scanning devices B. radio waves C. batteries D. chips

Why are some people worried about RFID technology?

A. Because children will be tracked by strangers.

B. Because market competition will become more fierce.

C. Because their private lives will be greatly affected.

D. Because customers will be forced to buy more products.

The last paragraph implies that RFID technology .

A. will not be used for such matters as buying milk

B. will be widely used, including for buying milk

C. will be limited to communication uses

D. will probably be used for pop music

Inspiration
“Mama, when I grow up, I’m going to be one of those!” I said this after seeing the Capital Dancing Company perform when I was three. It was the first time that my __36__ took on a vivid form and acted as something important to start my training. As I grew older and was __37__ to more, my interests in the world of dance __38__ varied but that little girl’s dream of someday becoming a __39__ in the company never left me. In the summer of 2005 when I was 18, I received the phone call which made that dream a __40__; I became a member of the company __41__ back to 1925.
As I look back on that day now, it surely __42__ any sense of reality. I believe I stayed in a state of pleasant disbelief __43__ I was halfway through rehearsals (排练) on my first day. I never actually __44__ to get the job. After being offered the position, I was completely __45__. I remember shaking with excitement.
Though I was absolutely thrilled with the change, it did not come without its fair share of __46__. Through the strict rehearsal period of dancing six days a week, I found it vital to __47__ up the material fast with every last bit of concentration. It is that extreme __48__ to detail (细节) and stress on practice that set us __49__. To then follow those high-energy rehearsals __50__ a busy show schedule of up to five performances a day, I discovered a new __51__ of the words “hard work.” What I thought were my physical __52__ were pushed much further than I thought __53__. I learned to make each performance better than the last.
Today, when I look at the unbelievable company that I have the great __54__ of being a part of, not only as a member, but as a dance captain, I see a __55__ that has inspired not only generations of little girls but a splendid company that continues to develop and grow-and inspires people every day to follow their dreams.

【小题2】A connected B. expanded C. exposed D. extended

My sister, Cathy, who lives in Vancouver, sent me a package full of Christmas gifts. She told me that she had 36   it in advance to make sure it would arrive at my house weeks before the 37 . Christmas was drawing near, but no package arrived. Cathy checked the tracking number every 38  with Canada Post, and every evening she would call me to 39  if there was any sign of it on our end.
The 40  always started with questions about the package, but twenty minutes later we would still be 41   . We talked about our family, such as parents, our kids, 42  and so on. Of course we also talked about our jobs. We had never made so much 43  for each other! The talk always took us back to the hours we spend together in our childhood.
By Christmas Eve we finally had to 44   the fact that the package was 45  lost. On Christmas morning, Cathy got on the phone with everyone in my 46   and told them what she had sent. Later on, after a big Christmas dinner, I had forgotten all about the 47  package when there was a knock on the door. Who could it be at such a time? As I 48  the door, a man was standing there. “I 49    this is yours.” he said, holding a package. Just then I 50  that it had been delivered to the wrong address. “I just got home from vacation,” he explained, “51 I wanted you to have this in time to open for Christmas.” I thanked this 52  stranger for taking so much trouble to 53 this gift to us on Christmas Day, and 54 thanked God that the package had been lost in the first place.
The real gift that holiday season was the new 55  to my sister who lives far away from us. Now there’s one gift I never want to give back!

To get an extra 14 years of life, don't smoke, eat lots of fruits and vegetables, exercise regularly and drink alcohol in a proper amount．That is according to a study published this Monday in the Public Library of Science Medicine Journal．
After tracking more than 20,000 people aged 45 to 79 years in the United Kingdom from about 1993 to 2007, Kay-Tee Khaw of the University of Cambridge and his colleagues found that people who adopted these four healthy habits lived all average of 14 years longer than those who didn't．
“We've known for a long time that these behaviors are good things to do, but we've not seen this benefit before, ”said Susan Jebb, head of Nutrition and Health at Britain's Medical Research Council．“The benefit was also seen regardless of whether or not people were fat and what social class they came from．”
Study participants（参与者）scored a point each for not smoking, regular physical activity, eating five servings of fruits and vegetables a day and moderate alcohol intake．
Public health experts said they hoped the study would inspire governments to introduce policies helping people to adopt these changes．But because the study only observed people rather than testing specific changes, it would be impossible to conclude that people who suddenly adopted these healthy behaviors would surely gain 14 years．
“We can't say that any person could gain 14 years by doing these things, ”said Dr．Tim Armstrong, a physical activity expert at the World Health Organization．“The 14 years is an average across the population of what's theoretically（理论上地）possible．”
“Most people know that things like a good diet matter and that smoking isn't good for them, ”Susan Jebb said．“We need to work on providing people with much more practical support to help them change．”
【小题1】Which of the following DOESN'T belong to the four healthy habits?