In 2013, the H7N9 virus(病毒) hit Shanghai, Anhui, Jiangsu, Zhejiang and so on. It seemed that most people who were infected(被感染) with H7N9 had the common flu. Some people suffered from a fever or a cough.

Don’t be afraid— it’s not easy to be infected with the virus. Here is some advice to help you protect(保護(hù)) yourself when it comes.

Wash your hands. You need to wash your hands with soap and hot water before you eat, after you use the toilet(廁所), and after you touch animals, because your hands may carry viruses.

Cover your nose and mouth. When someone sneezes（打噴嚏）or coughs, flu viruses can travel as far as one meter through the air, so you’d better stand a proper distant(距離) while talking to someone who has a cold. And always cover your mouth and nose with a piece of paper when you sneeze or cough, and then clean your hands.

Wear a mask(口罩). Some doctors say that masks can stop the flu as much as 80%, but if you don’t wash your hands often, it’s no use wearing a mask. And it’s necessary to wear the mask in the groups of people.

1.When did the H7N9 virus hit Shanghai?

A.In 2018 B.In 2015 C.In 2012 D.In 2013

2.Which of the following is TRUE according to the passage?

A.Some people who were infected with the H7N9 virus had a toothache.

B.You should cover your mouth and nose with a piece of paper when you sneeze or cough.

C.Some doctors say that masks can stop the flu as much as 100%.

D.It’s very easy to be infected with the virus.

3.How many ways to stop the virus are mentioned in the passage?

A.4 B.3 C.5 D.6

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