题目内容

Experts ________　________　________(被请来)to advise the government．

答案：were,brought,in
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　　The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with the portable computer in business class．In the past 15 years, 　　1　　 have reported well over 100 　　2　　 that could have been caused by electromagnetic interference．The 　　3　　 of this interference remains unconfirmed, 　　4　　 increasingly, experts are pointing the blame at portable electronic devices such as portable computers, radios and cassette players and mobile telephones．

　　RTCA, an organization which 　　5　　 the aviation industry, has recommended that 　　6　　 airlines ban such electronic devices from being used 　　7　　 “critical” stages of flight, 　　8　　 take-off and landing．Some experts have gone further, 　　9　　 for a total ban during all flights．Currently, rules on using these devices are 　　10　　 up to individual airlines．And although some airlines prohibit passengers from 　　11　　 such equipment during take-off and landing, most are reluctant to enforce a total ban．Many passengers want to work during flights．

　　The 　　12　　 is predicting how electromagnetic fields 　　13　　 affect an aircraft’s computers．Experts 　　14　　 that portable devices emit radiation, which affects those wavelengths which 　　15　　 use for navigation and communication．But, they have not been able to 　　16　　 these effects in a laboratory, they have no 　　17　　 of knowing whether the interference might be 　　18　　 or not．

　　The fact that aircraft may be vulnerable(易受攻击)to interference 　　19　　 the risk that terrorist may use radio system in order to 　　20　　 navigation equipment．

(1)
[　　]

A．

drivers

B．

conductors

C．

engineers

D．

pilots

(2)
[　　]

A．

actions

B．

events

C．

incidents

D．

matters

(3)
[　　]

A．

reason

B．

effect

C．

source

D．

story

(4)
[　　]

A．

and

B．

for

C．

but

D．

so

(5)
[　　]

A．

ensures

B．

persuades

C．

advises

D．

warns

(6)
[　　]

A．

some

B．

all

C．

several

D．

no

(7)
[　　]

A．

for

B．

with

C．

by

D．

during

(8)
[　　]

A．

particularly

B．

specially

C．

unfortunately

D．

possibly

(9)
[　　]

A．

calling

B．

looking

C．

waiting

D．

asking

(10)
[　　]

A．

put

B．

left

C．

given

D．

sent

(11)
[　　]

A．

carrying

B．

taking

C．

using

D．

fixing

(12)
[　　]

A．

possibility

B．

difficulty

C．

necessity

D．

idea

(13)
[　　]

A．

must

B．

should

C．

need

D．

might

(14)
[　　]

A．

know

B．

tell

C．

guess

D．

think

(15)
[　　]

A．

aircraft

B．

trains

C．

ships

D．

cars

(16)
[　　]

A．

restudy

B．

retell

C．

reproduce

D．

renew

(17)
[　　]

A．

key

B．

way

C．

step

D．

trick

(18)
[　　]

A．

dangerous

B．

strong

C．

helpful

D．

useful

(19)
[　　]

A．

faces

B．

runs

C．

raises

D．

take

(20)
[　　]

A．

damage

B．

guide

C．

lead

D．

repair

Sports can help you keep fit and get in touch with nature. However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.  

Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses （球场） in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.  

There are many environment-friendly sports. Power walking is one of them that you could take up today. You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.  

Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it’s free.  

　　64. Which of the following is the author most probably in favor of?

　　A. Cycling around a lake.

　　B. Motor racing in the desert.

　　C. Playing basketball in a gym.

　　D. Swimming in a sports center.

　　65. What do we know about golf from the passage?

　　A. It is popular in Portugal and Spain.

　　B. It causes water shortages around the world.

　　C. It pollutes the earth with chemicals and wastes.

　　D. It needs water and electricity to keep its courses green.

　　66. The author uses power walking as an example mainly because______.

　　A. it is an outdoor sport

　　B. it improves our health

　　C. it uses fewer resources

　　D. it is recommended by experts

　　67. The author writes the passage to_______.

　　A. show us the function of major sports

　　B. encourage us to go in for green sports

　　C. discuss the major influence of popular sports

　　D. introduce different types of environment-friendly sports

Sports can help you keep fit and get in touch with nature. However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.  

Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses （球场） in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.  

There are many environment-friendly sports. Power walking is one of them that you could take up today. You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.  

Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it’s free.  

　　64. Which of the following is the author most probably in favor of?

　　A. Cycling around a lake.

　　B. Motor racing in the desert.

　　C. Playing basketball in a gym.

　　D. Swimming in a sports center.

　　65. What do we know about golf from the passage?

　　A. It is popular in Portugal and Spain.

　　B. It causes water shortages around the world.

　　C. It pollutes the earth with chemicals and wastes.

　　D. It needs water and electricity to keep its courses green.

　　66. The author uses power walking as an example mainly because______.

　　A. it is an outdoor sport

　　B. it improves our health

　　C. it uses fewer resources

　　D. it is recommended by experts

　　67. The author writes the passage to_______.

　　A. show us the function of major sports

　　B. encourage us to go in for green sports

　　C. discuss the major influence of popular sports

　　D. introduce different types of environment-friendly sports


　　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.
　56．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
　57．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
　58．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
　59．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
　60．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

　　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.

　56．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

　57．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

　58．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

　59．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

　60．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

 

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