Let the floods cross the distance in your eyes

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During recent years, floods and flash floods have caused billions of dollars in damage each year. They are among the most common and widespread of all natural disasters. Even more importantly, they’re No.1 weather-related killer. A flood can happen anywhere along the Mississippi, in New England, even in the desert.
The following are some fascinating facts about floods and flash floods.
A flood（commonly called river flood）is high flow of water from a river or similar body of water, happening over a period of time too long to be considered a flash flood. Flooding is caused in many ways. Winter or spring rains, together with melting snows, can fill rivers too quickly. Heavy rains from hurricanes or other tropical（热带的）systems can also produce river flooding. The Mississippi River Flood of 1993 was caused by repeated heavy rain from thunderstorms over a period of weeks.
Flash floods are quickly-rising floods which are usually the result of heavy rains over a short period of time, often only several hours or even less. They can also be caused by ice jams（冰塞）on rivers related to a winter or spring melting, or occasionally even a dam break. The constant influx（汇集） of water finally caused a great overflow to begin, powerful enough to sweep vehicles away, roll big stones into roadways, uproot trees, level（夷平） buildings, and knock bridges down. The speed of the rising of water is the most frightening.
Do remember: Move to higher ground and stay away from low areas during heavy rain. Stay out of flooded areas. Never allow children especially to play or walk in flowing water. Never drive your car into water of unknown depths.
43. What is the best title for the passage?
A. The power of floodsB. The damage of floods
C. The occurrence of floods D. The facts about floods
44. The last paragraph is mainly about ______ .
A. flood safety tips B. the reasons for floods
C. the waste water systems D. the swift flood waters
45. According to the passage, people are afraid of _____ most during flash floods.
A. the constant influx of water
B. the sudden occurrence of flash floods
C. the quick rising water
D. the great damage of flash floods
46. According to the passage, flash floods are ______.
A. great floods resulted from heavy rains in a short time
B. floods rising quickly from heavy rains in a short time
C. quickly-rising floods in a long time
D. floods happening over a long time

It is reported that the floods have left about ____ people homeless.

A．two thousand

B．two-thousands

C．two thousand

D．two thousands of

The bridge_______ in the floods last year has been rebuilt and traffic will soon return.

A．hurt

B．injured

C．destroyed

D．affected

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Thousands of houses _______ by the floods in Guangxi last month.

A．destroy

B．destroyed

C．have destroyed

D．were destroyed

Maybe you know floods, droughts, earthquakes, sandstorms and so on. But have 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 with and hardest rains are.
Typhoons are very dangerous. In 2004, Typhoon Yunna killed 164 people in Zhejiang, and 24 people were missing. In May 2006, Typhoon Pearl hit Guangdong and Fujian, and thousands of houses were damaged.
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.
小题1: Typhoons often happen

A．in the hot season	B．in the cold season
C．only in China	D．under the sea

小题2: Which picture can tell the meaning of the underlined sentences“…，it starts to move higher up into the sky. Then, cooler air around it rushes in.”?

小题3: When a typhoon comes, we cannot

A．close all the windows	B．listen to typhoon news
C．stay outside with our bikes	D．stay inside the strong house

小题4: This passage is mainly about

A．the knowledge of typhoon	B．the eye of a typhoon
C．the most dangerous typhoon Yunna	D．the names of typhoon

小题5: Which of the following is TRUE according to the passage?

A．The warmer the air gets, the slower the wind moves.

B．In 2006, Typhoon Peal killed 164 people in Zhejiang.

C．The strongest winds and harder rains are in the eye of typhoon.

D．A typhoon will happen when the wind goes faster than 30 meters a second.