根據(jù)短文內(nèi)容，從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。

Do you constantly use the computer,whether for learning or entertainment?Computers give off radiation(輻射) that is bad for your health,but here are some ways to protect yourself from computer radiation.

_1.___Green tea can be absorbed（吸收） by the body easily into a form of vitamin A, which helps reduce radiation._ 2.__

It is advisable to attach a radiation filter plate(輻射過濾板)in front of your computer’s screen. Make sure to avoid putting any mental substances near your computer as these may have reflected some of the electromagnetic waves that are harmful to your health. __3.The brighter the screen the higher the radiation there will be and vice versa.

You can also put some radiation-absorbing plants such as several cacti near your computer to prevent radiation.

Make sure you do a skincare protection before sitting in front of the computer .__ 4.Wash your face soon after using the computer in order to reduce 70% of the radiation.

__ 5.___ Old computer in general, has one to two times more radiation released than the new one within the same distance.

A.And adjust（調(diào)整） the brightness of your computer screen.

B.Apply(使用) a layer of facial mask（面膜） to protect yourself.

C.And adjust the sound level on your computer.

D.The most efficient way is by drinking some coffee regularly.

E.The simple way is by drinking 2 or 3 cups of green tea every day.

F.If possible, purchase a new computer instead of using an old model computer.

G.It also helps keep our eyes see things clearly in the dark by improving the visual ability.

 

1.E

2.G

3.A

4.B

5.F

【解析】

試題分析：本文介紹了幾種減少電腦輻射的方法

1.E本段是關(guān)于用綠茶來減少電腦輻射的影響，故E項(xiàng)正確

2.G綠茶還有另外的功能就是提高視力，故G項(xiàng)正確

3.A根據(jù)下句The brighter the screen the higher the radiation there will be and vice versa.說明屏幕的亮度也是影響人們視力的原因，那么就要調(diào)整屏幕的亮度。故A項(xiàng)正確。

4.B根據(jù)下一句Wash your face soon after using the computer在用完電腦以后要洗臉。那么之前也要采取措施，選項(xiàng)中只有B項(xiàng)是與之有關(guān)的。故B下符合上下文。

5.F根據(jù)下句Old computer in general, has one to two times more radiation released than the new one within the same distance.說明舊電腦的輻射較大，那么應(yīng)該使用新的電腦。故F項(xiàng)正確。

考點(diǎn)：考查科普類短文閱讀

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