Imagine you’re at a party full of strangers. You’re nervous. Who are these peopl

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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

答案

1-5 DADCB

解析

本文主要讲述的是一项新技术RFID的应用及它的前景

1.    主旨大意题。通读全文得知。
2.    细节理解题。根据第一段“Fortunately，you’ve got a thing that sends out…and the time available for meeting-whatever”，可推知选A。
3.    细节理解题。根据第三段“An RFID tag with a tiny chip can be fixed… Passive RFID tags have no energy source--batteries because they do not need it”，可知选D。
4.    细节理解题。根据第六段“Human right supporters are nervous…It goes too far tracking… Accompanied by how many biscuits”可知选C。
5.    推理推断题。根据最后一段提到的Marconi在发明收音机时只想应用在轮船与陆地沿岸的交流沟通，没想到应用在流行音乐上，因而谁知道RFID及相关技术在未来将怎样使用，可能会用在买牛奶的问题上。

举一反三

The African elephant, the largest land animal remaining on earth , is of great importance to African ecosystem(生态系统). Unlike other animals, the African elephant is to a great extent the builder of its environment. As a big plant-eater, it largely shapes the forest-and-savanna(大草原) surroundings in which it lives, therefore setting the terms of existence for millions of other animals that live in its habitat.
It is the elephant"s great desire for food that makes it a disturber of the environment and an important builder of its habitat. In its continuous search for the 300 pounds of plants it must have every day, it kills small trees and underbushes, and pulls branches off big trees. This results in numerous open spaces in both deep tropical forests and in the woodlands that cover part of the African savannas. In these open spaces are numerous plants in various stages of growth that attract a variety of other plant-eaters.

Take the rain forests for example. In their natural state, the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor. By pulling down trees and eating plants, elephants make open spaces, allowing new plants to grow on the forest floor. In such situations, the forests become suitable for large hoofed plant-eaters to move around and for small plant-eaters to get their food as well.
What worries scientists now is that the African elephant has become an endangered species. If the elephant disappears, scientists say, many other animals will also disappear from vast areas of forest and savanna, greatly changing and worsening the whole ecosystem.
11. What is the passage mainly about?
A. Disappearance of African elephants.
B. Forests and savannas as habitats for African elephants.
C. The effect of African elephants" search for food.
D. The eating habit of African elephants.
12. What does the underlined phrase “setting the terms” most probably mean?
A. Fixing the time. B. Worsening the state.
C. Improving the quality. D. Deciding the conditions.
13. What do we know about the open spaces in the passage?
A. They result from the destruction of rain forests.
B. They provide food mainly for African elephants.
C. They are home to many endangered animals

D. They are attractive to plant-eating animals of different kinds.
14. According to the passage, which of the following statements is TRUE?
A. The African elephant is the largest animal on earth.
B. African elephants have 300 pounds of plants every day, including small trees and underbushes.
C. The African elephant is in a way the builder of the environment like other land animals
D. If the African elephant disappears, the whole ecosystem won’t be affected..
15. The passage is developed mainly by .
A. showing the effect and then explaining the causes
B. pointing out similarities and differences
C. describing the changes in space order
D. giving examples

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Unless we spend money spotting and preventing asteroids(小行星) now, one might crash into Early and destroy life as we know it, say some scientists.
Asteroids are bigger versions of the meteoroids(流星) that race across the night sky. Most orbit the sun far from Earth and don’t threaten us. But there are also thousands of asteroids whose orbits put them on a collision course with Earth.
Buy $50 million worth of new telescopes right now. Then spend $10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one, the scientists say, we’ll have a way to change its course.
Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldn’t be cheap. Is is worth it? Two things experts consider when judging any risk are: (1)How likely the event is; and (2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500 000 years. Sounds pretty rare-but if one did fall, it would be the end of the world. “If we don’t take care of these asteroids, they’ll take care of us,”says one scientist. “It’s that simple.”
The cure, though, might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? “The world has less to fear from doomsday(世界末日) rocks than from a great nuclear fleet set against it,” said a New York Times article.
9.What does the passage say about asteroids and meteoroids?
A.They are heavenly bodies different in composition.
B.They are heavenly bodies similar in nature.
C.There are more asteroids than meteoroids.
D.Asteroids are more mysterious than meteoroids.
10.What do scientists say about the collision of an asteroid with Earth?
A.It is very unlikely but the danger exists.
B.Such a collision might occur once every 25 years.
C.Coilisions of smaller asteroids with Earth occur more often than expected.
D.lt’s still too early to say whether such a collision might occur.
11.What do people think of the suggestion of using nuclear weapons to alter the course of asteroids?
A.It sounds practical but it may not solve the problem.
B.It may create more problems than it might slove.
C.It is a waste of money because a collision of asteroids with Earth is very unlikely.
D.Further research should be done before it is proved applicable.
12.We can conclude from the passage that .
A.while pushing asteroids off course nuclear weapons would destroy the world
B.asteroids racing across the night sky are likely to hit Earth in the near future
C.the worry about asteroids can be left to future generations since it is unlike to happen in our lifetime.
D.workable solutions still have to be found to prevent a collision of asteroids with Earth

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Within fifteen years Britain and other nations should be well on with the building of huge industrial complexes (结合)for the recycling of waste. The word "rubbish" could lose its meaning because everything that goes into the dumps would be made into something useful. Even the most dangerous and unpleasant wastes would provide energy if nothing else.
The latest project is to take a city of around half a million inhabitants and discover exactly what raw materials go into it and what go out. The aim is to find out how much of these raw materials could be provided if a plant for recycling waste were built just outside the city. This plant would recycle not only metal such as steel, lead and copper, but also paper and rubber.
Another new project is being set up to discover the best ways of sorting and separating the rubbish. When this project is complete, the rubbish will be processed like this: first, it will pass through sharp metal bars which will tear open the plastic bags in which rubbish is usually packed; then it will pass through a powerful fan to separate the lightest elements from the heavy solids; after that grounders and rollers break up everything that can be broken. Finally the rubbish will pass under magnets, which will remove the bits of iron and steel; the rubber and plastic will then be sorted out in the final stage.
The first full-scale giant recycling plants are, perhaps, fifteen years away. Indeed, with the growing cost of transporting rubbish to more distant dumps, some big cities will be forced to build their own recycling plants before long.
1. The main purpose of the passage is ________.
A. to show us a future way of recycling wastes B. to tell the importance of recycling wastes
C. to warn people the danger of some wastes    D. to introduce a new recycling plant
2. How many stages are there in the recycling process?
A. 3.                 B. 4.               C. 5.                          D. 6.
3. What is the main reason for big cities to build their own recycling plants?
A. To deal with wastes in a better way. B. It’s a good way to gain profits.
C. It’s more economical than to dump wastes in some distant places.
D. Energy can be got at a lower price.
4. The first full-scale huge recycling plants ________.
A. have been in existence for 15 years   B. takes 15 years to build
C. can’t be built until 15 years later       D. will remain functioning for 15 years

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Word Power
Author(s): Kaplan $13.95
You’ll never be at a loss for words again. Energize your vocabulary with must-know everyday words that are the essentials of a good vocabulary, engaging lessons to help you use words in text, hot words often found on tests, tips to help you figure out new words, roots, and more.
Grades: 8 & up Ages: 13 & up
Word Smart Junior
Author(s): Russell Stauffer $ 17.95
Now this is the way to add new words to your vocabulary! Word Smart Junior will make you laugh so much. You’ll be amazed that you’ve just learned more than 120 fascinating and very useful words! Parents, teachers, and friends will marvel at your eloquence (口才)!
Grades: 3-5 Ages: 8-10
Grammar Smart Junior
Author(s): Marcia Reynolds $ 16.85
Do you quake when your teacher says, “Now it’s time for grammar”? Do your verbs agree with your subjects?
Fear no more! A big Hollywood producer and a famous movie star will help you learn all those nasty (讨厌的) elements of grammar. You’ll be amazed at how quickly you learn, and how much fun it can be. You’ll finally know your grammar backwards and forwards, and you’ll never have to worry about it again.
Grades: 7-9 Ages: 12-14
Grammar Smart: An Audio Guide to Perfect Usage
Author(s): Julian Fleisher $ 12.68
The words you use say a lot about you … but the way you put them together says even more. Your grammar makes an immediate and lasting impression on your teachers, and even your friends. So don’t make the mistake of thinking that grammar is too complicated. We’ve created Grammar Smart to help you write and speak with clarity and confidence.
Grades: 6-8 Ages: 11-13
小题1:If a ten-year-old boy wants himself to be admired because of his speech ability, he may buy _______.

A．Word Power

B．Word Smart Junior

C．Grammar Smart Junior

D．Grammar Smart: An Audio Guide to Perfect Usage

小题2: By saying “You’ll finally know your grammar backwards and forwards”, the writer means “________”.

A．You will be clearly familiar with grammar

B．You will know the history of grammar

C．You will know the make-up of grammar

D．You will learn about the future of grammar

小题3:The four books are all about _______.

A．fiction and mysteries

B．parenting and teaching

C．literature and arts

D．language study

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What will people die of 100 years from now? If you think that is a simple question, you have not been paying attention to the revolution that is taking place in bio-technology(生物技术). With the help of new medicine, the human body will last a very long time. Death will come mainly from accidents, murder and war. Today’s leading killers, such as heart disease, cancer, and aging itself, will become distant memories.
In discussion of technological changes, the Internet gets most of the attention these days. But the change in medicine can be the real technological event of our times. How long can humans live? Human brains were known to decide the final death. Cells are the basic units of all living things, and until recently, scientists were sure that the life of cells could not go much beyond l20 years because the basic materials of cells, such as those of brain cells, would not last forever. But the upper limits will be broken by new medicine. Sometime between 2050 and 2100, medicine will have advanced to the point at which every 10 years or so, people will be able to take medicine to repair their organs. The medicine, made up of the basic building materials of life, will build new brain cells, heart cells, and so on—in much the same way our bodies make new skin cells to take the place of old ones.
It is exciting to imaging that the advance in technology may be changing the most basic condition of human existence, but many technical problems still must be cleared up on the way to this wonderful future.
6. According to the passage, human death is now mainly caused by        .
A. diseases and aging                                 B. accidents and war
C. accidents and aging                        D. heart disease and war
7. In the author’s opinion, today’s most important advance in technology lies in        .
A. medicine          B. the Internet     C. brain cells                     D. human organ
8. Humans may live longer in the future because        .
A. heart disease will be far away from us
B. human brains can decide the final death
C. the basic materials of cells will last forever
D. human organs can be repaired by new medicine

9. How long can humans live in the future according to the passage?
A. Over 100 years.                             B. More than 120 years.
C. About 150 years.                                   D. The passage doesn’t tell us.
10. We can learn from the passage that        .
A. human life will not last more than 120 years in the future
B. humans have to take medicine to build new skin cells now
C. much needs to be done before humans can have a longer life
D. we have already solved the technical problems in building new cells

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