You wash your hands with it．

Be sure ______ your hands before you have meals.

A．to wash

B．wash

C．washing

You must wash your hands when preparing food to______passing on disease to your family.

A．worry about

B．protect against

C．pay attention to

D．guard against

A、Eat food with your hand if

B、speak with your mouth full of food

C、Wash hands before each meal

D、Eat your food as fast as you can

A.hang out

B.freshen up

C.apologize

D.I think I'll

A、give tips

B、look up

C、buy a round

D、wash your hands

ganisms that cause disease. This advice may sound simple. However, experts say a lot of people do not follow it.

A recent study found that many Americans fail to wash their hands after using public toilets. About thirty percent of the people left public restrooms without stopping to wash their hands.

In the study, researchers asked 1,000 adults how often they washed their hands. The researchers observed almost 8,000 people at public toilets in five major American cities. Remits of the study were compared to a similar study clone in 1996.

More than ninety-five percent of Americans questioned said they always wash their hands after using public restrooms. However, the study found that only seventy percent of them actually do so.

The study also found that American men arc less likely than women to wash their hands after using a public restroom.

The American Society for Microbiology announced the findings. Judy Daly works for the group. She admits that hand washing may seem an unusual subject to study. But she says hand washing is a very serious issue. Experts say hand washing is the simplest and most effective way to reduce the spread of infectious diseases.

Infections can spread by touching surfaces that have harmful organisms on them. Shaking hands with another person also can spread infection. Harmful bacteria may enter your body if you touch your mouth, nose or eyes.

Among the most common infections spread by hand are colds, influenza, and throat and ear infections. In addition, millions of food poisoning cases each year are blamed on people who prepare food but do not wash their hands. More serious diseases like cholera and hepatitis are spread this way, too.

Many patients in hospitals also get infections. Some die from them. The spread of infections often is blamed on health workers who do not wash their hand after treating patients.

The American Society of Microbiology has launched a public information campaign to get more people to wash their hands. Experts say following the correct method is important. You should wash your hand with soap and hot running water for at least fifteen seconds.

Questions:

15.Among the Americans questioned, how many of them don't actually wash their hands after using public restrooms？

16.In the study, how many people were observed at public toilets in five major cities？

17.How do harmful bacteria enter your body？

18.How should you wash your hands？

(35)

A．13%

B．30%

C．67%

D．95%

Reading Comprehension(阅读理解) Passage 4 Look closely at your hands. Are they clean？ It doesn't matter how many times you wash your hands, tiny microbes (微生物) still stay on them. But don't worry. Most microbes don't harm you. Now scientists say the microbes on our hands could be used in a surprising way; fighting crime, According to a recent survey microbes as well as fingerprints(指纹) could be used to identify the criminal. Everyone has his own set of microbes on the hands. That is to say, if you and your best friend were able to see and compare all the microbes on your hands, your hands probably would look different. Some microbes only show up on your hands while others live only on your friend's hands. When you work on a computer you leave the microbes from your hands on the keyboard. The scientists can easily tell the owner of the keyboard by looking at the microbes on it. Even if you don't leave your fingerprints behind, your microbes may give you away. Noah Fierer, a scientist, says. "You can only clean a fingerprint, but you can't sterilize (使无菌) a surface just by wiping(擦) it off," He says that scientists have a lot more work to do before the microbe is used as a useful tool. 根据短文完成1-5题，在空格处填写正确选项的字母。 1. According to the passage,_______ could be used to identify the criminal. A. fingerprints B. scientists' hands C. microbes D. fingerprints and microbes on people's hands

every eight people has a cold. Most people get colds by touching things that another person with a cold has used or touched. You can even catch a cold by shaking hands. So if someone you know has a cold, you should try not to use the same cups, glasses, dishes, or telephone with him. If you have to touch a person with a cold or handle something that the person has used, wash your hands immediately afterwards. Soap does not kill cold viruses, but running water can carry them away.

Most people get colds by【46】that another person【47】has used or touched. To prevent you from catching colds, you should try【48】the same things that the person with a cold has used. If you have to use them,【49】your hands immediately afterwards.【50】can carry cold viruses away.