题目内容：

According to the Center for Disease Control and Prevention(疾病控制预防中心), if you don’t often wash your hands, you will be affected by viruses(病菌)from many places and make yourself ill. You’re at risk every time you touch your eyes, nose or mouth. In fact, one of the most common ways people catch colds is by rubbing their noses or their eyes when there are cold viruses on their hands. If you don’t often wash your hands, especially when you’re sick, you may spread the viruses directly to others. You should wash your hands in the following situations:

1. After using the bathroom.

2. After blowing your nose or coughing.

3. Before eating, serving or preparing food.

4. After visiting anyone who is sick.

5. When your hands are dirty.

There is a right way to wash your hands. Follow these simple steps to keep your hands clean.

6. Use warm water (not cold or hot)

7. Wash for 15 seconds.

8. Rinse(冲洗) well under warm running water and dry them with a clean towel.

任务一：根据短文内容，用简洁的句子或短语完成下列表格

Way to prevent the spread of illness	1.
Correct way to wash your hand	Using the water which is 2.
When do you wash your hands?	After using the bathroom, or 3.. Or after visiting  4..

任务二：请你介绍一种保护视力的方法。

5.