Even plant can run a fever, especially when they’re under attack by insects or disease. But unlike human, plants can have their temperature taken from 3, 000 feet away straight up. A decade ago, adopting the infrared （红外线）scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide （杀虫剂）spraying rather than rain poison on a whole field, which invariably includes plants that don’t have pest （害虫）problems.
Even better, Paley’s Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3, 000 feet at night, an infrared scanner measured the heat emitted by crops. The data were transformed into a color-coded map showing where plants were running“fevers”. Farmers could then spot-spray, using 50 to 70 percent less pesticide than they otherwise would.
The bad news is that Paley’s company closed down in 1984, after only three years. Farmers resisted the new technology and long - term backers were hard to find. But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works. “This technique can be used on 75 percent of agricultural land in the United States, ” says George Oerther of Texas A & M. Ray Jackson , who recently retired from the Department of Agriculture, thinks remote infrared crop scanning could be adopted by the end of the decade. But only ff Paley finds the financial backing which he failed to obtain 10 years ago. Plants will emit an increased amount of heat when they are______________.
| A．sprayed with pesticides |
| B．facing an infrared scanner |
| C．in poor physical condition |
| D．exposed to excessive sun rays |
．In order to apply pesticide spraying precisely, we can use infrared scanning to____________.
| A．estimate the damage to the crops |
| B．measure the size of the affected area |
| C．draw a color-coded map |
| D．locate the problem area |
Farmers can save a considerable amount of pesticide by______________.
| A．resorting to spot-spraying |
| B．consulting infrared scanning experts |
| C．transforming poisoned rain |
| D．detecting crop problems at an early stage |
The application of infrared scanning technology to agriculture met with some difficulties
_______________.
| A．the lack of official support |
| B．its high cost |
| C．the lack of financial support |
| D．its failure to help increase production |
Infrared scanning technology may be brought back into operation because of_____________.
| A．the desire of farmers to improve the quality of their produce |
| B．growing concern about the excessive use of pesticides on crops |
| C．the forceful promotion by the Department of Agriculture |
| D．full support from agricultural experts |
Tokyo is one of those places that you can love and hate at the same time.
In Tokyo there are always too many people in the places where I want to be. Of course there are too many cars. The Japanese drive very fast， but in Tokyo they often spend a long time in traffic jams. Tokyo is not different from London， Paris and New York in that. It is different when one wants to walk.
At certain times of the day there are a lot of people on foot in London’s Oxford Street. But the streets near the Ginze in Tokyo always have a lot of people on foot， and sometimes it is really difficult to walk. People are very polite； there are just too many of them.
The worst time to be in the street is at 11：30 at night. That is when the nightclubs are closing and everybody wants to go home. There are 35,000 nightclubs in Tokyo， and you do not often see one that is empty.
During the day， most people travel to and from work by train. Tokyo people buy six million train tickets every day. At most stations， trains arrive every two or three minutes， but at certain hours there do not seem to be enough trains. Although they are usually crowded， Japanese trains are very good. They always leave and arrive on time. On a London train you would see everybody reading a newspaper. In Tokyo trains everybody in a seat seems to be asleep， whether his journey is long or short.
In Tokyo， I stood outside the station for five minutes. Three fire-engines raced past on the way to one of the many fires that Tokyo has every day. Tokyo has so many surprises that none of them can really surprise me now.Tokyo is different from London in that .
| A．there are many traffic jams |
| B．nightclubs are sometimes empty |
| C．wherever I want to be， it’s too crowded |
| D．it is more difficult to go somewhere on foot |
According to the passage， Japanese trains .
| A．are always punctual |
| B．often delay at most situations |
| C．are crowded because they are often late |
| D．are the last means people use to travel to and from work |
What is the story mainly about？
| A．The writer’s impression of Tokyo. |
| B．The reasons why the writer loves Tokyo. |
| C．Different means of transportation in Tokyo. |
| D．Many surprises that Tokyo has brought to the writer. |
Fires break out in Tokyo according to the writer.
| A．very seldom | B．quite frequently |
| C．three times a day | D．the most often in the world |
Which of the following is NOT true about Tokyo？
| A．Tokyo people are friendly. |
| B．There are more trains than cars. |
| C．Fire-engines are very busy in the city. |
| D．The streets become more crowded at 11：30 at night. |
The Best of Friends
The evidence for harmony may not be obvious in some families. But it seems that four out of five young people now get on with their parents, which is the opposite of the popularly held image(印象)of unhappy teenagers locked in their room after endless family quarrels.
An important new study into teenage attitudes surprisingly shows that their family life is more harmonious than it has ever been in the past.” We were surprised by jus
t how positive today’s young people seen to be about their families,” said one member of the research team.” They’re expected to b
e rebellious(叛逆的) and selfish but actually they have other things on their minds; they want a car and material goods, and they worry about whether school is serving them well. There’s more negotiation(商议) and discussion between parents and children, and children expect to take part in the family decision-making process. They don’t want to rock the boat.”
So it seems that this generation of parents is much more likely than parents of 30 years ago to treat their children as friends.” My parents are happy
to discuss things with me and willing to listen to me,” says 17-years-old Daniel Lazall. ”I always tell them when I’m going out clubbing. As long as they know what I’m doing, they’re fine with it.” Susan Crome, who is now 21,agrees.”Looking back on the last 10 years, there was a lot of what you could call negotiation. For example, as long as I’d done all my homework, I could go out on a Saturday night. But I think my grandparents were a lot stricter with my parents than that.”
Maybe this positive view of family life should not be unexpected. It is possible that the idea of teenagers rebellion is not rooted in real facts. A researcher comments,” Our surprise that teenagers say they get along well with their parents comes because of a brief period in our social history when teenagers were regarded as different beings. But that idea of rebelling and breaking away from their parents really only happened during that one time in the 1960s when everyone rebelled. The normal situation throughout history has been a smooth change from helping out with the family business to taking it over.”What is the popular images of teenagers today?
A．They worry about school |
| B．They dislike living with their parents |
| C．They have to be locked in to avoid troubles |
| D．They quarrel a lot with other family members |
The study shows that teenagers don’t want to ___
| A．share family responsibility | B．cause trouble in their families |
| C．go boating with their family | D．make family decisions |
Compared with parents of 30 years ago, today’s parents___.
| A．go to clubs more often with their children |
| B．are much stricter with their children |
| C．care less about their children’s life |
| D．give their children more freedom |
According to the authour,teenage rebellion____.
| A．may be a false belief | B．is common nowadays |
| C．existed only in the 1960s | D．resulted from changes in families |
What is the passage mainly about?
| A．Negotiation in family | B．Education in family |
| C．Harmony in family | D．Teenage trouble in family |
As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the habit of rushing through lift, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body.
Stress is a natural part of everyday life and there is no way to avoid it. In fact, it is not the bad thing it is often supposed to be. A certain amount of stress is vital to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health.
The amount of stress a person can withstand(抵抗)depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first signs of unusual difficulties. When exposed to stress, in whatever form, we react both chemically and physically. In fact we make choice between "fight" or 
"flight" and in more primitive days the choice made the difference between life or death. The crises we meet today are unlikely to be so extreme, but however little the stress is, it involves the same response. It is when such a reaction lasts long, through continued exposure to stress, that health becomes endangered. Such serious conditions as high blood pressure and heart disease have established links with stress. Since we cannot remove stress from our lives (it would be unwise to do so even if we could), we need to find ways to deal with it. People are finding less and less time for relaxing themselves because_____.
| A．they do not know how to enjoy themselves |
B．they do not believe that relaxation is important for health |
| C．they are travelling fast all the time |
| D．they are becoming busier with their work |
According to the writer, the most important character for a good manager is his ________.
| A．not fearing stress | B．knowing the art of relaxation |
| C．high sense of responsibility | D．having control over performance |
Which of the following statements is true?
| A．We can find some ways to avoid stress. |
| B．Stress is always harmful to people. |
| C．It is easy to change the habit of keeping oneself busy with work. |
D．Different people can withstand  different amounts of stress. |
In Paragraph 3, "such a reaction" refers back to_______.
| A．"making a choice between 'flight' or 'fight'" |
| B．"reaction to stress both chemically and physically" |
| C．"responding to crises quickly" |
| D．"losing heart at the signs difficulties" |
In the last sentence of the passage, "do so " refers to ______.
| A．"expose ourselves to stress" |
| B．"find ways to deal with stress" |
| C．"remove stress from our lives" |
| D．"established links between diseases and stress" |
Advertising means to draw people’s attention to something. It is a central feature of our lives. Sales depend upon it. So does our knowledge of what is available. Read the following advertisements and see how much you understand them. 
About what they advertise, we can safely say that .
| A．advertisements（I）and（III）advertise two products |
| B．advertisements（III）and（IV）advertise services |
| C．advertisements（II）and（III）advertise beliefs |
| D．advertisements（I）and（IV）provide jobs |
How many advertisements are trying to be price competitive?
| A．1. | B．2. | C．3. | D．4. |
Which of the following statements about the advertisements above is NOT true?
| A．A newspaper uses one of them in its own newspaper. |
| B．All of them advertise for the largest number of customers. |
| C．All of them list the prices. |
| D．All of them have included contact in formation. |
From these examples of advertisements, we can conclude that .
| A．some advertisements are provided by newspapers free of charge |
| B．newspaper is the most common means of advertising |
| C．advertising is an expensive business |
| D．advertisements should appeal to customers |
If you want someone to do some cleaning for you, you can call .
| A．232567 | B．73204683 |
| C．444237058 | D．0732605041 |
As the US wakes up to China’s rising status (地位) as an economic and strategic competitor, US parents are urging their children to learn Chinese, reports Julian Borger.
The US is being swept by a rush to learn Mandarin (普通话) -- from wealthy New York mothers hiring Chinese nannies (保姆) for their small children to a defence department education project in Oregon.
The forces driving Mandarin’s momentum (势头) are parental ambition for children facing a future in which China is almost certain to be a major player, and the government is worried about that America may get left behind in that new world.
The bottleneck is the supply of teachers. Mandarin instructors are difficult to import and difficult to train. There are visa problems in bringing over teachers from China but the biggest barrier is cultural. Teaching in Asia is generally done by rote and the change to western, interactive styles of instruction can be a large leap（跳越）.
On the other hand, it requires enormous firmness for westerners to learn a language like Chinese, with its thousands of written characters. According to the Asia Society in New York, all of America’s teacher-training institutions turn out only a couple of dozen homegrown Mandarin teachers.
One way to ease the shortage is to find native Mandarin speakers and use fast-track methods to train them. However, the majority of Chinese-Americans grew up speaking Cantonese, the dialect（方言）spoken in Hong Kong, where their parents came from. Many are themselves signing on as Mandarin students at the private language schools springing up on the west coast.
Title : in the USA
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