Question

【题目】 If you dropped a piece of fruit on your computer keyboard, would you think about eating it again? What if you dropped it in the toilet? Bacteria(细菌) can live everywhere, even in some unexpected places.

If you eat at your computer, sneeze on your keyboard, or sit down to surf the Internet without first washing your hands, your computer keyboard could be bad for your health. According to the US National Research Centre, the average computer carries 400 times more bacteria than a toilet bowl(抽水马桶) does.

Could one of the dirtiest things in your home be right in your hand? Yes. The TV remote control. It gets dropped on the floor, put on the sofa and everyone in the house holds it. Scientists found that about half of the tested remote controls carry the cold virus(病毒).

Don’t forget your toothbrush. Do you put it in the bathroom? Studies show that flushing(抽水冲洗) the toilet releases(释放) bacteria in the air. Bacteria can remain in the air for at least two hours. They may pollute your toothbrush. You can find ways to solve this problem. Try to keep your toothbrush far from the toilet. Make sure that it is in an upright position after each use. It’s also important to change your toothbrush every three months.

Here are some other places to watch out for:

At home

The kitchen is one of the places with the most bacteria — more than the bathroom. Dishcloths and kitchen sponges(海绵) are great places for bacteria since they are always wet after being used. Try to make them dry.

At school

When you put your schoolbags on the floor or in the bus, many bacteria can live on the bottom(底部) of it. Try to clean your schoolbag often.

In public places

Escalator handrails(电梯扶手), shopping cart handles(推车手柄), public books and magazines are top bacteria carriers. That’s why the first thing to do when getting home is to wash your hands.

Yes, bacteria are everywhere. But don’t be too afraid to touch those things. Most of bacteriaare harmless. Just remember to wash your hands regularly. It is the most useful way to protect yourself from bacteria and viruses.

回答下面5个问题，每题答案不超过6个词。

【1】Where can bacteria live? _____________________________________________.

【2】How many of the tested remote controls carry the cold virus? _____________________________.

【3】How often should you change your toothbrush? ________________________________________.

【4】Why are dishcloths and kitchen sponges good places for bacteria? _________________________.

【5】How can you protect yourself from bacteria and viruses? _________________________________ .

Answer 1

【答案】

【1】Everywhere.

【2】About half of them.

【3】Every three months.

【4】Because they are always wet.

【5】Remember to wash hands regularly.

【解析】

本文是一篇说明文，介绍了细菌存在于生活中的各个角落，而要想保护自己免受细菌和病毒侵害，最简单的方法就是洗手。

【1】题意：细菌能在哪里生存？

根据原文第1段Bacteria(细菌) can live everywhere可知，细菌可以在任何地方生存。故答案为Everywhere.

【2】题意：经测试，有多少遥控器带有感冒病毒？

根据原文第3段Scientists found that about half of the tested remote controls carry the cold virus可知，科学家发现，大约一半被测试的遥控器携带感冒病毒。故答案为About half of them.

【3】题意：你应该多久更换一次牙刷？

根据原文第4段It’s also important to change your toothbrush every three months可知，应该每三个月更换一次牙刷。故答案为Every three months.

【4】题意：为什么抹布和厨房海绵容易滋生细菌？

根据原文第6段Dishcloths and kitchen sponges(海绵) are great places for bacteria since they are always wet after being used可知，抹布和厨房海绵在被用过之后都处于潮湿状态，这种环境有利于细菌的滋生。故答案为Because they are always wet.

【5】题意：应该如何保护自己免受细菌和病毒的侵害？

根据原文最后一段Just remember to wash your hands regularly. It is the most useful way to protect yourself from bacteria and viruses可知，经常洗手是保护自己免受细菌和病毒侵害的最有用的方法。故答案为Remember to wash hands regularly.