Even plants can run a fever, especially when they’re under attack by insects or disease. But unlike humans, plants can have their temperature taken from 3,000 feet away—straight up. A decade ago, adapting the infrared 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 40 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 if Paley finds the financial backing which he failed to obtain 10 years ago.

In no country ______ Britain, it has been said, can one experience four seasons in the course of a single day. other than more than better than rather than

Dinner will be ready______, but we still have time for a drink. finally currently presently lately

It is ______ he is determined. buying a new car that to buy a new car that to buy a new car what buying a new car which

It is vital that food and shelter are made ______ for people in the flood-stricken area. free useful available usable

The ______ care of the body requires an understanding of its needs, allowing for variations resulting from climate, age or occupation. proper tender warm mild

The ATMs enable bank customers to access their money 24 hours a day and seven days a week ______ ATMs are located. wherever whenever however whatever

A: I’d like some icecream. Do they have Coke only?B: ______ Of course not. They have almost everything you can name. Sorry, I have no idea about what you said. You’d better choose what you like. You’d probably have to go by yourself.

Woman: How can we get tickets for the Sunday’s movie? Man: ______. Just go to see it. No one pays them. Just go to the booking office. I like the Sunday’s movie.

Ann: Oh, it’s ten o’clock. I’d better go home now. Bill: ______. OK. Please take your time. You can’t go now. Don’t you want tO stay any longer? Won’t you stay for another cup of coffee? Yeah, it’s really late. Why not immediately?

Speaker A: Want to come over Thursday for supper? Speaker B: ______. I really can’t. You’ll not mind, I think Let’s put it off till later No, I don’t want to Thanks, but I have to work that evening

Since the matter was extremely ______, we dealt with it immediately. tough tense urgent instant

Stewardess: Please put your seat up. We’ll be serving dinner shortly. Passenger: I’d like to, but there seems to be something wrong with it. ______ Can you help with it? Can you stay a few minutes? It’s your duty to fix it. Hold on, please.

They lost their way in the forest, and ______ made matters worse was night began to fall. that it what which

Steel is an alloy composed______of iron and carbon. primarily traditionally carefully partially

A long time ago, at a national conference on biology, he cautiously ______ his new theory on life. advanced relieved produced thrust

Promptness is important in American business, academic, and social settings. The importance of punctuality is taught to young children in school. Tardy slips and the use of bells signal to the child that punctuality and time itself are to be respected. People who keep appointments are considered dependable. If people are late to job interviews, appointments, or classes, they are often viewed as unreliable and irresponsible. In the business world, “time is money“ and companies may fine their executives for tardiness to business meetings. Of course, it is not always possible to be punctual. Social and business etiquette also provides rules for late arrivals. Calling on the telephone if one is going to be more than a few minutes late for scheduled appointments is considered polite and is often expected. Keeping a date of a friend waiting beyond ten to twenty minutes is considered rude. On the other hand, arriving thirty minutes late to some parties is acceptable.

Complimentary Dow Jones News Get Dow Jones Real-Time News for Investors at no charge with your Scottrade account! It’s the same up-to-the-minute news and information that more than 300,000 financial professionals use each day to make investment decisions and stay ahead of market changes. Dow Jones Real-Time News for Investors provides extensive, high-quality coverage of companies, markets and events, including: -Stock Market News—What’s moving and why -Company Announcements -Economic Indicators -Credit Market News -International, Regional and Industry News Some brokers charge $30 a month for this valuable tool. At Scottrade, you’ll get the same access at no charge! Just one more reason to choose Scottrade!The advertisement claims that people can get Dow Jones News by ______. choosing Scottrade paying $30 investing $300,000 doing nothing

China’s employment and re-employment situation remains tough with a surge this year in the number of graduates hitting the job market and in unemployment in general, a senior official said. The country’s registered average unemployment rate in urban areas reached 4 per cent last year and is expected to go higher this year, Labour and Social Security Minister Zheng Silin told Xinhua yesterday. There are nearly 14 million laid-off workers in urban areas so far. And more than 10 million new graduates are predicted to enter the work force Zheng said. To make things worse, about 150 million rural workers will head to the cities to seek employment, he said. Zheng, who was appointed as the minister during the first session of the 10th National People’s Congress in March, has urged his departments nationwide to do more to assist laid-off workers to restart their lives.

Even plants can run a fever, especially when they’re under attack by insects or disease. But unlike humans, plants can have their temperature taken from 3,000 feet away—straight up. A decade ago, adapting the infrared 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 40 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 if Paley finds the financial backing which he failed to obtain 10 years ago.

A land free from destruction, plus wealth, natural resources, and labor supply—all these were important factors, in helping England to become the center for the Industrial Revolution.【B1】they were not enough. Something else was needed to start the industrial process. That “something special“ was men—【B2】individuals who could invent machines, find new sources of power, and establish business organizations to reshape society. The men who【B3】the machines of the Industrial Revolution came from many backgrounds and many occupations. Many of them were【B4】inventors than scientists. A man who is a pure scientist is primarily interested in doing his research【B5】. He is not necessarily working so that his findings can be used. An inventor or one interested in applied science is【B6】trying to make something that has a concrete idea. He may try to solve a problem by using the theories【B7】science or by experimenting through trial and error. Regardless of his method, he is working to obtain a specific result: the construction of a harvesting machine, the burning of a light bulb, or one of【B8】other objectives. Most of the people who developed the machines of the Industrial Revolution were inventors, not trained scientists. A few were both scientists and inventors. Even those who had【B9】or no training in science might not have made their inventions if a groundwork had not been laid by scientists years【B10】.【B1】 But And Besides Even

Plants will emit an increased amount of heat when they are______.

In order to apply pesticide spraying precisely, we can use infrared scanning to______.

Farmers can save a considerable amount of pesticide by______.

The application of infrared scanning technology to agriculture met with some difficulties______.

Infrared scanning technology may be brought back into operation because of______.