If you’re wondering when you might get the flu, a new study indicates you should keep an eye on your local weather report.According to a research published in the Journal of Clinical Virology, if you 题目和参考答案——青夏教育精英家教网—

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If you’re wondering when you might get the flu, a new study indicates you should keep an eye on your local weather report.

According to a research published in the Journal of Clinical Virology, if you keep your eye on the weather and watch for the first major dip in the temperature, you can essentially mark your calendar in prediction for an outbreak the flu.

To figure out how the weather and flu outbreak may be connected, researchers analyzed statistics of 20,000 people in an area over three seasons. The number of people who caught the flu was then compared with local weather data.

After each season, the team noticed one consistent finding: The first really cold period with low outdoor temperatures and low humidity (湿度) was always followed by a week of a mass influenza outbreak.

The researchers say that aerosol particles (气溶胶粒子) containing virus and liquid are more able to spread in cold and dry weather. So, in theory, if you sneeze or cough and the surrounding air is very dry, the air will absorb the moisture and the particles containing the virus keep spreading through the air for a longer period of time.

Luckily there are ways to keep off the illness regardless of the weather. Washing your hands, coughing into the crook (弯曲) of your arm and getting vaccine (疫苗) are the best ways to prevent the flu from spreading. People over the age of 65, pregnant women and young children are at the highest risk of developing complications (并发症) related to the virus, according to the CDC.

1.From the first paragraph we can infer that .

A. people may easily fall sick

B. nobody can predict when one gets flu

C. flu is often related to weather changes

D. weather report plays an important part in life

2.How did the researchers draw the conclusion of the study?

A. By analyzing the data

B. By doing questionnaires

C. .By carrying out experiments

D. By making observation

3.Why do people catch the flu easily in cold and dry weather?

A. Cold and dry weather helps the spread of virus

B. The colder it is, the more kinds of flu there are

C. Gold and dry weather can prevent people from doing exercise

D. Low temperature can increase the number of aerosol particles

4.What can we learn about from the last paragraph?

A. The vaccines for flu

B. The main ways to cure flu

C. The most common kind of flu virus

D. The people who are easy to get flu

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