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发布时间： 2021-10-17 09:06
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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.
Infrared scanning technology may be brought back into operation because of_____________.
本题解析：
依据文章第三自然段第2行“But with the renewed concern about pesticide on produce, and refinements in infrared scanning，Palely hopes to get back into operation”，可知B项（出于对杀虫剂过度使用的担心）符合题意。
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.
The application of infrared scanning technology to agriculture met with some difficulties
________.
本题解析：
依据文章第三自然段的第1句“The bad news is that Palely’s company closed down in 1984，after only three years．Farmers resisted the new technology and long-term backers were hard to find”，从中可以看出红外线扫描技术应用于农业遇到了一些问题，原因有两个：一是农民对新技术的抵制，二是难以找到长期赞助商。文章中还有一处明显的提示出现在最后一句：“But only if Palely finds the financial backing which he failed to obtain 10 years ago”．从该句提供的信息同样可以反推出10年前的情形，所以选项C正确。
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.
Farmers can save a considerable amount of pesticide by______________.
本题解析：
依据文章第二自然段最后一句“Farmers could then spot-spray, using 50 to 70 percent less pesticide than they otherwise would”（采取点喷，农民们可以节省平时用量的50％至70％的杀虫剂），选项A符合题意。
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.
In order to apply pesticide spraying precisely, we can use infrared scanning to____________.
本题解析：
本题要求判断使用红外线扫描技术的目的。依据文章第二自然段第4行“．．．showing where plants were running ‘fevers’．Farmers could then spot spray，”说明目的是确定有问题的区域，以使农民有针对性地喷杀虫剂。显然，选项D（确定有问题的地域）为最佳选项。
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______________.
本题解析：
依据文章第二自然段第2行“an infrared scanner measured the heat emitted by crops．The data were transformed into a color-coded map showing where plants were running’evers’”，说明植物在发“高烧”，也就是说，“身体状况”不佳时才会散发热，所以选项C符合题意。
Turning on the TV, a wonderful scene comes to your eyes — a group of men, tall, strong and handsome, and women, young, beautiful and attractive, too. Together they eat in the finest restaurants, traveling everywhere around the world by luxurious planes and pleasure ships. They are models.
Do you envy them? What sort of life are models leading? Is it a wonderful life for a young lady or a young man?
A few models are well-known actors or actresses who can make a lot of money only by showing themselves off in commercials. But the majority of them are just curious to see what it is like. They’d like to be models just because they are attracted by what they imagine — models earn a lot of money and lead a glorious life. This is true for those who are very successful. However, most models find it difficult to get work. Very few can earn enough to live on, and for all models their expenses are high. Their agents claim about 20% of the earnings, and no model will get very far without a clever agent. Besides, they have to buy good clothing. They also have to pay to travel to interviews and reach the places where the work is to be done.
Interviews for a model job are known as cattle-markets in the modeling world, and not without a good reason. A top model can choose his or her work, demand and receive high fees and has his or her expenses paid. But for most models, the situation is quite different. And agent or employer inspects each model much as a farmer inspects cattle at a market. Intelligence, qualifications and personal characteristics count for little against good looks and tight figures. For all except the very few lucky ones, the life of a model is a continual search for work, trying to sell himself or herself in the face of fierce competition and, sometimes, not particularly moral standards on the part of some employers.
Immigration officials at airport look suspiciously at a girl whose passport shows her occupation as “Model”, and these ar
本题解析：
从第五段可知，模特这个职业有时会被人瞧不起， 从四个选项看只有A项符合题意。
Turning on the TV, a wonderful scene comes to your eyes — a group of men, tall, strong and handsome, and women, young, beautiful and attractive, too. Together they eat in the finest restaurants, traveling everywhere around the world by luxurious planes and pleasure ships. They are models.
Do you envy them? What sort of life are models leading? Is it a wonderful life for a young lady or a young man?
A few models are well-known actors or actresses who can make a lot of money only by showing themselves off in commercials. But the majority of them are just curious to see what it is like. They’d like to be models just because they are attracted by what they imagine — models earn a lot of money and lead a glorious life. This is true for those who are very successful. However, most models find it difficult to get work. Very few can earn enough to live on, and for all models their expenses are high. Their agents claim about 20% of the earnings, and no model will get very far without a clever agent. Besides, they have to buy good clothing. They also have to pay to travel to interviews and reach the places where the work is to be done.
Interviews for a model job are known as cattle-markets in the modeling world, and not without a good reason. A top model can choose his or her work, demand and receive high fees and has his or her expenses paid. But for most models, the situation is quite different. And agent or employer inspects each model much as a farmer inspects cattle at a market. Intelligence, qualifications and personal characteristics count for little against good looks and tight figures. For all except the very few lucky ones, the life of a model is a continual search for work, trying to sell himself or herself in the face of fierce competition and, sometimes, not particularly moral standards on the part of some employers.
Immigration officials at airport look suspiciously at a girl whose passport shows her occupation as “Model”, and these ar
本题解析：
作者认为虽然模特职业是很风光，但不是每一个模特都能成功的，尤其是文章最后一句话点明了主题。
Turning on the TV, a wonderful scene comes to your eyes — a group of men, tall, strong and handsome, and women, young, beautiful and attractive, too. Together they eat in the finest restaurants, traveling everywhere around the world by luxurious planes and pleasure ships. They are models.
Do you envy them? What sort of life are models leading? Is it a wonderful life for a young lady or a young man?
A few models are well-known actors or actresses who can make a lot of money only by showing themselves off in commercials. But the majority of them are just curious to see what it is like. They’d like to be models just because they are attracted by what they imagine — models earn a lot of money and lead a glorious life. This is true for those who are very successful. However, most models find it difficult to get work. Very few can earn enough to live on, and for all models their expenses are high. Their agents claim about 20% of the earnings, and no model will get very far without a clever agent. Besides, they have to buy good clothing. They also have to pay to travel to interviews and reach the places where the work is to be done.
Interviews for a model job are known as cattle-markets in the modeling world, and not without a good reason. A top model can choose his or her work, demand and receive high fees and has his or her expenses paid. But for most models, the situation is quite different. And agent or employer inspects each model much as a farmer inspects cattle at a market. Intelligence, qualifications and personal characteristics count for little against good looks and tight figures. For all except the very few lucky ones, the life of a model is a continual search for work, trying to sell himself or herself in the face of fierce competition and, sometimes, not particularly moral standards on the part of some employers.
Immigration officials at airport look suspiciously at a girl whose passport shows her occupation as “Model”, and these ar
本题解析：
从第五自然段Immigration officials at airport look suspiciously at a girl whose passport shows her occupation as “Model”可知答案。
Turning on the TV, a wonderful scene comes to your eyes — a group of men, tall, strong and handsome, and women, young, beautiful and attractive, too. Together they eat in the finest restaurants, traveling everywhere around the world by luxurious planes and pleasure ships. They are models.
Do you envy them? What sort of life are models leading? Is it a wonderful life for a young lady or a young man?
A few models are well-known actors or actresses who can make a lot of money only by showing themselves off in commercials. But the majority of them are just curious to see what it is like. They’d like to be models just because they are attracted by what they imagine — models earn a lot of money and lead a glorious life. This is true for those who are very successful. However, most models find it difficult to get work. Very few can earn enough to live on, and for all models their expenses are high. Their agents claim about 20% of the earnings, and no model will get very far without a clever agent. Besides, they have to buy good clothing. They also have to pay to travel to interviews and reach the places where the work is to be done.
Interviews for a model job are known as cattle-markets in the modeling world, and not without a good reason. A top model can choose his or her work, demand and receive high fees and has his or her expenses paid. But for most models, the situation is quite different. And agent or employer inspects each model much as a farmer inspects cattle at a market. Intelligence, qualifications and personal characteristics count for little against good looks and tight figures. For all except the very few lucky ones, the life of a model is a continual search for work, trying to sell himself or herself in the face of fierce competition and, sometimes, not particularly moral standards on the part of some employers.
Immigration officials at airport look suspiciously at a girl whose passport shows her occupation as “Model”, and these ar
本题解析：
从第三自然段no model will get very far without a clever agent可知答案。
Turning on the TV, a wonderful scene comes to your eyes — a group of men, tall, strong and handsome, and women, young, beautiful and attractive, too. Together they eat in the finest restaurants, traveling everywhere around the world by luxurious planes and pleasure ships. They are models.
Do you envy them? What sort of life are models leading? Is it a wonderful life for a young lady or a young man?
A few models are well-known actors or actresses who can make a lot of money only by showing themselves off in commercials. But the majority of them are just curious to see what it is like. They’d like to be models just because they are attracted by what they imagine — models earn a lot of money and lead a glorious life. This is true for those who are very successful. However, most models find it difficult to get work. Very few can earn enough to live on, and for all models their expenses are high. Their agents claim about 20% of the earnings, and no model will get very far without a clever agent. Besides, they have to buy good clothing. They also have to pay to travel to interviews and reach the places where the work is to be done.
Interviews for a model job are known as cattle-markets in the modeling world, and not without a good reason. A top model can choose his or her work, demand and receive high fees and has his or her expenses paid. But for most models, the situation is quite different. And agent or employer inspects each model much as a farmer inspects cattle at a market. Intelligence, qualifications and personal characteristics count for little against good looks and tight figures. For all except the very few lucky ones, the life of a model is a continual search for work, trying to sell himself or herself in the face of fierce competition and, sometimes, not particularly moral standards on the part of some employers.
Immigration officials at airport look suspiciously at a girl whose passport shows her occupation as “Model”, and these ar
本题解析：
从第四自然段Intelligence, qualifications and personal characteristics count for little against good looks and tight figures.可知答案。
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