As you touch people and objects throughout the day，there are germs（细菌）on your hands．In turn，you can make yourself ill with these germs by touching your eyes，nose or mouth．Although it's impossible to keep your hands germ-free，washing your hands is good for you．It limits the chance of getting sick and is one of the best ways to avoid（避免）getting sick and spreading illness．Staying healthy can make you feel happier．

Hand washing requires only soap and water，but do you really know when and how to wash your hands？The following information may be useful for you．

When to wash your hands

Always wash your hands before：

▲Preparing food

▲Eating

▲Giving medicine

▲Touching a sick or injured person Always wash your hands after：

▲Preparing food

▲Using the toilet

▲Touching an animal or animal toys or waste

▲Touching a sick or injured person

Of course，it's also important to wash your hands whenever they look dirty．

How to wash your hands

It's generally best to wash your hands with soap and water．Follow these simple steps：

▲Wet your hands with running water．

▲Use soap．

▲Wash your hands for at least 20seconds．Remember to wash the hands carefully，including the backs of your hands，wrists，fingers and fingernails．

▲Dry your hands with a clean towel．

81．According to the passage，you had better wash your hands___．

A．after getting up in the morning

B．when you feel tired

C．when they look dirty

82．If you want to wash your hands，you should use___．

A．some medicineB．soap and waterC．some flowers

83．If you，your life will be happier．___

A．stay healthyB．wash handsC．prepare food

84．From the passage we know___．

A．it's good to wash the hands carefully

B．if you wash your hands many times a day，you will never get ill

C．animals or animal t