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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 get 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 (装置), 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 he put every where and send information in smart network that would make ordinary life simpler.
RFID tags are a small part of this phenomenon. “The world is going to he 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 date 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
查看习题详情和答案>>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 get 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 (装置), 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 he put everywhere and send information in 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 information 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
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>>Daphne asked Jim, a friend of Walter's, for some extra help on her political science homework. On Friday, they agreed to meet at his dormitory study room at 8 Sunday night. It was 8∶05 when Jim arrived. He wasn't on time as he usually is, because he had been out enjoying the spring weather after eating at McDonald's. But he wasn't worried, because he knew from Walter that Daphne was usually late. When Daphne hadn't arrived by 8∶25, Jim was a little surprised. He decided to go to the dorm lounge(休息室) and watch his favorite Sunday night TV show. It started at 8∶30, so he had to hurry. When he got to the lounge, Walter was just leaving. “Hey, Jim, your favorite TV show just finished. Where were you? It was fantastic!”
“What do you mean, Walter? It's 8∶30, so I'm just in time to watch it!” Jim replied, looking a little confused.
“Didn't you change your watch last night?” Walter asked. Then he explained, “Last night you were supposed to move your watch ahead one hour. We do this every year on the last Sunday in April. Then, on the last Sunday in October, everyone moves clock back an hour. We say‘spring ahead, fall back ’to help us remember which way to change our clocks.” Walter stopped to see if Jim had understood his explanation. “You don't do that in Indiana, I guess.”
“No, we don't,” Jim said, shaking his head. “In that case, I was over an hour late for my appointment with Daphne, not only five minutes late. Wow! She'll never let me forget this!”
1.What is the important idea of this story?
[ ]
A.Daphne is usually late.
B.there are no time changes in Indiana.
C.Jim likes his favorite Sunday night TV show.
D.Jim was late because he didn't know about the time changes.
2.Why did Jim look confused when he learned the TV show had just finished?
[ ]
A.Because he missed the fantastic TV show.
B.Because he thought he was just in time to watch his favorite TV show.
C.Because he was late for the show.
D.Because he forgot the time of the show.
3. All the citizens in the United States are supposed to move their watches ahead in spring and back in fall.
[ ]
A.Certainly they are.
B.No, they are not.
C.No, those who live in Indiana do not do that.
D.Certainly they are besides those living in Indiana.
4. How did Jim feel after Walter told him about the time changes?
[ ]
A.He felt very upset that he hadn't kept his appointment with Daphne.
B.He looked confused about the time changes.
C.He was surprised that Daphne was over an hour late.
D.He felt very glad that he didn't miss his favorite TV show.
5.Imagine you are going to a party at 2 p.m. of the last Sunday in April. If you forget about the time change, what time will you arrive?
[ ]
Daphne asked Jim, a friend of Walter's, for some extra help on her political science homework. On Friday, they agreed to meet at his dormitory study room at 8 Sunday night. It was 8∶05 when Jim arrived. He wasn't on time as he usually is, because he had been out enjoying the spring weather after eating at McDonald's. But he wasn't worried, because he knew from Walter that Daphne was usually late. When Daphne hadn't arrived by 8∶25, Jim was a little surprised. He decided to go to the dorm lounge(休息室) and watch his favorite Sunday night TV show. It started at 8∶30, so he had to hurry. When he got to the lounge, Walter was just leaving. “Hey, Jim, your favorite TV show just finished. Where were you? It was fantastic!”
“What do you mean, Walter? It's 8∶30, so I'm just in time to watch it!” Jim replied, looking a little confused.
“Didn't you change your watch last night?” Walter asked. Then he explained, “Last night you were supposed to move your watch ahead one hour. We do this every year on the last Sunday in April. Then, on the last Sunday in October, everyone moves clock back an hour. We say‘spring ahead, fall back ’to help us remember which way to change our clocks.” Walter stopped to see if Jim had understood his explanation. “You don't do that in Indiana, I guess.”
“No, we don't,” Jim said, shaking his head. “In that case, I was over an hour late for my appointment with Daphne, not only five minutes late. Wow! She'll never let me forget this!”
1.What is the important idea of this story?
[ ]
A.Daphne is usually late.
B.there are no time changes in Indiana.
C.Jim likes his favorite Sunday night TV show.
D.Jim was late because he didn't know about the time changes.
2.Why did Jim look confused when he learned the TV show had just finished?
[ ]
A.Because he missed the fantastic TV show.
B.Because he thought he was just in time to watch his favorite TV show.
C.Because he was late for the show.
D.Because he forgot the time of the show.
3. All the citizens in the United States are supposed to move their watches ahead in spring and back in fall.
[ ]
A.Certainly they are.
B.No, they are not.
C.No, those who live in Indiana do not do that.
D.Certainly they are besides those living in Indiana.
4. How did Jim feel after Walter told him about the time changes?
[ ]
A.He felt very upset that he hadn't kept his appointment with Daphne.
B.He looked confused about the time changes.
C.He was surprised that Daphne was over an hour late.
D.He felt very glad that he didn't miss his favorite TV show.
5.Imagine you are going to a party at 2 p.m. of the last Sunday in April. If you forget about the time change, what time will you arrive?
[ ]
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