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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 (very important person) 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. w*w*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.
1. 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
2. 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
3. Passive RFID tags chiefly consist of .
A. scanning devices B. radio waves C. batteries D. chips
4. 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.
5. 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
查看习题详情和答案>>阅读理解: 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。
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 (very important person) 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. w*w*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.
1. 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
2. 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
3. Passive RFID tags chiefly consist of .
A. scanning devices B. radio waves C. batteries D. chips
4. 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.
5. 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
查看习题详情和答案>>第二卷（共25分）
第四部分：写作（共三节，满分25分）
第一节：单词拼写：根据句意和中文提示或首字母写出单词的正确形式，每空一词。（共10题，每题0.5分，满分5分）。
1.It’s hard to imagine how this quiet volcano （摧毁）the whole city!
2.Many people were b_____________ alive under lava, ash and rocks when the volcano erupted.
3. As the shots rang out, the crowd ran screaming in all______________ (方向).
4.The government did whatever they could to prevent the disease from __________ (传播) to other countries.
5 .I think you should pay attention to your ________________(发音).
6. We were reading in the classroom when the door closed with a bang. We were f___________ with fear.
7. He always likes to ask some c______________ questions. We all often feel puzzled.
8. He was wearing dark glasses to p______________ his eyes from the sun.
9. Since the law of wildlife protection came into effect, the number of the milu deer has grown ________________（逐渐地） year by year.
He grew up in a w_______________ family, so he knows nothing about the life of the poor.
查看习题详情和答案>>阅读理解
阅读下面短文，从每题所给四个选项中选出最佳答案。
A Battery's Worst Nightmare(噩梦)
Portable electronics that can be carried about easily are only as good as their batteries and, let's face it, batteries aren't very good, especially when compared with, say, petrol, which packs 100 times a battery's energy into an equal space. That's why a large group of mechanical engineers(centered at the Massachusetts Institute of Technology, but with partners at other universities and companies) are hard at work in an effort to replace batteries with a tiny engine that runs on fuel. Imagine a battery－free life! W hen the fuel runs out in your laptop or mobilephone, you just fill up and go.
The engine, about the size of a ten－cent coin, starts with a combustion chamber(燃烧室)that burns hydrogen(氢). Its tiny parts are etched onto silicon wafers(硅片) in the same manner that computer parts are imprinted onto integrated circuits(集成电路). The first engine is made up of five wafers. And since these wafers could be produced in much the same way as computer chips, they could probably be produced quite cheaply.
But the devil in all this nice detail is efficiency(效率). Tiny engine parts don't always behave like their scaled－up parts of the first engine. Something between the parts can slow down the works, according to Columbia University professor Luc Frechette, one of the engine's designers. Extreme heat from the combustion chamber is also a problem, often leaking to other parts of the engine.
The scientists' goal is to create an engine that will operate at 10 percent efficiency－that is, 10 times better than batteries operate. Frechette says that a complete system, with all parts of place and working, will be set up in the next couple of years, but commercial models aren't like until at least the end of the next ten years.
1．According to the passage, the title suggests that ________.
[ ]
A．batteries should be greatly improved
B．petrol will be used instead of batteries
C．the time of batteries will be gone forever
D．pollution caused by batteries must be solved
2．What's the meaning of the underlined word “devil” in paragraph 3?
[ ]
3．What can we infer from the passage?
[ ]
A．The new invention doesn't need any fuel.
B．The new engine has been produced in quantity.
C．The new invention is much cheaper than the battery.
D．The new engine needs to be improved before it's on sale.
4．What is the main purpose of this passage?
[ ]
A．To introduce a new invention to readers.
B．To persuade readers not to use batteries.
C．To show us how the new invention works.
D．To declare when the engine will be on sale.
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