Question

【題目】閱讀下列短文，從每題所給的四個(gè)選項(xiàng) (A、B、C和D) 中選出最佳選項(xiàng)。
If the only sports you do are dancing your fingers across your keyboard, you could be in serious danger of more than just becoming overweight and out of shape.
Do you often feel sleepy, like something is weighing down on your head? Do you feel forgetful? Do you sometimes feel uncomfortable up and down your neck and lower back, and you can't explain why? Do you get sick often? It could be radiation (輻射) from your computer causing it. If you spend three hours or more a day in front of a computer (and at this point, who doesn't?), you are more easily harmed by the hazards.
We have got so used to using computers that we often neglect to think of them as dangerous sources of harmful radiation. A safe amount of radiation is 25 V/m (Volts/meter). Do you want to guess how much our personal computers give off?
Keyboard: 1000 V/m
Mouse: 450 V/m
Monitor: 218V/m
CPU: 170V/m
Notebook computers: 2,500 V/m
Ways of Protect Yourself from Harmful Computer Radiation
1 Decorate your desk with cactus plants, they take in radiation.
2 Drink two to three cups of green tea a day and eat an orange daily. The vitamins in tea leaves and oranges protect us from radiation and keep our eyes healthy as well.
3Use a screen filter for your monitor.
4 Avoid having metal objects nearby on your desk.
5 Put the back of the computer to the wall. Most of the radiation comes off the back.
6 Keep your monitor at least 50cm away from your face. 7. Keep your computer rooms ventilated .
8Eat healthily-----especially fruits and vegetables.
9 Don't fall asleep on your computer. Turn it off if you have to rest nearby.
The ways above are useful, why not have a try at once?
（1）Sitting too close to your computer for too long can cause ________.
A.your fingers to turn blue
B.radiation sickness
C.your parents to think you're smart
D.your games scores to go down
（2）The underlined word “hazards” in paragraph 2 means ________.
A.illness
B.feelings
C.danger
D.headache
（3）How can you avoid the affects of radiation?
A.Spend less time at your computer.
B.Use plastic to cover your screen.
C.Type in a dark room.
D.Have your cactus do your homework for you.
（4）Which of the following is NOT true according to the passage?
A.Cactus plants take in harmful radiation.
B.Eating healthily helps you stay well.
C.You should fall asleep at your computer daily.
D.A well ventilated room is good prevention.
（5）The best title of the passage is ________.
A.Computer problems
B.Computer radiation: a silent killer

Answer 1

【答案】
（1）B
（2）C
（3）A
（4）C
（5）B
【解析】本文講述了一個(gè)電腦問題-電腦輻射，如果長時(shí)間坐在電腦前還有可能得輻射病，文章中一些防止電腦輻射的方法值得借鑒。
（1）細(xì)節(jié)理解題。根據(jù)文章第二段“It could be radiation from your computer causing it. If you spend three hours or more a day in front of a computer (and at this point, who doesn't?), you are more easily harmed by the hazards”可知，如果你坐在電腦前太久，會受到電腦的輻射，得輻射疾病。故選B。
（2）詞義推測題。根據(jù)第二段原句“If you spend three hours or more a day in front of a computer (and at this point, who doesn't?), you are more easily harmed by the hazards.”可知，前文提到電腦會輻射人的身體，可想而知，坐在電腦前越久，越容易受到輻射，越危險(xiǎn)。故可推測“ hazards”是危險(xiǎn)之意。A項(xiàng)意為生��；B項(xiàng)意為感覺；C項(xiàng)意為危險(xiǎn)；D項(xiàng)意為頭痛。故選C。
（3）細(xì)節(jié)理解題。根據(jù)文章“Use a screen filter for your monitor.”可知你為你的屏幕安上濾網(wǎng)可以防止輻射，沒有說塑料，B項(xiàng)錯(cuò)誤；C項(xiàng)文章沒有提到，屬于無中生有，排除C項(xiàng)；根據(jù)文章“ Decorate your desk with cactus plants, they take in radiation.”可知，仙人掌是為了裝飾你的桌子，幫助吸收輻射，而不是為你做工，D項(xiàng)錯(cuò)誤。故選A。
（4）細(xì)節(jié)理解題。根據(jù)文章“Don't fall asleep on your computer. Turn it off if you have to rest nearby.”可知，除非你必須要休息，否則不能在你的電腦前睡覺。B項(xiàng)描述錯(cuò)誤。故選B。
（5）主旨大意題。通讀全文可知，文章主要講述電腦輻射的問題。A項(xiàng)標(biāo)題：電腦問題，此標(biāo)題太過廣泛，電腦問題很多，不能很好的概括本文。B項(xiàng)標(biāo)題：電腦問題-一個(gè)沉默的殺手，此標(biāo)題能更好的反映輻射是在隱形的傷害我們的身體。故選B。