Haveyoueverheardoftyphoons（台风）?Typhoonsaresomeofthewors...

问题详情：

Have you ever heard of typhoons（台风）? Typhoons are some of the worst storms, usually around the Pacific Ocean and the South China Sea. Most happen in July, August and September.

How does a typhoon happen? When lots of sea water gets hot in the summer sun, it evaporates into the air. This makes the air hotter. When the air gets warm enough, it starts to move higher up into the sky. Then, cooler air around it rushes in. It fills the space that is left. After the air gets warmer, it starts to move quickly, making wind. The wind goes in circles, and it keeps moving higher in the sky. The warmer the air gets, the quicker the wind moves. And when the wind moves faster than 30 meters a second, a typhoon begins.

A typhoon has two parts. One is called the “eye”. In the eye, the wind does not move so fast. The other part is the wall of clouds around the eye. This is where the strongest winds and hardest rains are.

Typhoons are very dangerous. In 2006, Typhoon Saomai killed 193 people in Zhejiang, and 11 people were missing. In 2009, Typhoon Morakot hit Taiwan. More than 500 people lost their lives and thousands of houses were destroyed.

What to do when a typhoon hits

●     Stay inside. Close all the windows and stay away from them.

●     Try to bring all of your things inside. strong winds could even blow away your bikes!

●     Listen to the radio or TV for important information.

●     If you’re told to go to a safer place, do so right away.

1. Typhoons often happen _______.

A. in summer and autumn                     B. in winter and spring

C. only in South China                                              D. under the ocean

2. When the air gets warm enough, it starts to _______.

   A. move quickly and make wind                 B. make the cool air hot

   C. go higher up into the sky                     D. keep moving around

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

 A. The cooler the air gets, the faster the wind moves.

B. In 2009 Typhoon Morakot killed over 500 people in Zhejiang.

C. Typhoon has only one part called the eye of typhoon.

D. When the wind goes faster than 30 meters a second, a typhoon will happen.

4. What is the purpose of writing this article?

A. To tell readers about the knowledge of typhoon.      

B. To teach readers what to do when typhoon arrives.

C. To make readers realize the dangers of typhoon.

D. To help readers learn about the causes of making typhoon 

【回答】

1. A  2. C   3. D  4. A    

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