【題目】

A. feet B. mood C. blind D. prevent E. protect

The most harmful blue light comes from screens. Looking at them too much gives you eye strain. Blue light from screens also affects your sleep. Your body thinks you are looking at the sun all the time. So, it stops creating the chemical that makes you sleepy. Too much blue light can even make you【1】.

We can’t avoid all blue light, and we wouldn’t want to. It keeps us in a good【2】 during the day. However, we can 【3】 our sight from it. There are special glasses and apps that block blue light. They are very helpful.

Also, try following the 20-20-20 rule. Every 20 minutes, look at something 20 【4】 away. Do that for 20 seconds each time. It gives your eyes the rest that they need.

【答案】

【1】C

【2】B

【3】E

【4】A

【解析】

短文主要介紹有關(guān)藍(lán)光的問題。

【1】句意：太多的藍(lán)光甚至?xí)屇闶鳌?/span>

make sb. +adj. 使某人怎么樣；blind失明的，形容詞，符合語境。故選C。

【2】句意：它讓我們白天心情好。

a一個(gè)，修飾可數(shù)名詞單數(shù)；mood心情，可數(shù)名詞；in a good mood心情好。故選B。

【3】句意：然而，我們可以保護(hù)我們的視力不受它（藍(lán)光）的影響。

protect…from…表示“保護(hù)……不受……侵害”，固定搭配。故選E。

【4】句意：每隔20分鐘，看看20英尺遠(yuǎn)的東西。

away意思是“遠(yuǎn)離”，可用于一段距離后面，表示有多遠(yuǎn)；20 feet away表示“二十英尺遠(yuǎn)”。故選A。

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