题型:任务型阅读 题类:常考题 难易度:普通
山东省菏泽市2021届高三上学期英语11月期中考试试卷(含听力音频)
In recent years, riding a hot-air balloon has become more and more popular. Many people practice flying a hot-air balloon as a sport. Some people may question the safety of riding a hot-air balloon. Generally speaking, hot-air balloons are quite safe.
Before examining the safety of hot-air balloons, it may help to understand how they work. Each balloon has a large bag called an envelope, attached to a bag or gondola(吊篮). In order to get enough lift, the air in the bag is heated with the assistance of a flame. As the air heats up, the balloon rises.
Like kites, hot-air balloons travel with the wind. Typically, pilots choose the early morning hours to fly since wind speeds are low. Meanwhile, the flight will become more enjoyable.
High winds and extreme weather such as storm and snow are very dangerous. An experienced pilot will not fly in these conditions. Good pilots always check their equipment before beginning a flight, and they often carry backup for safety even in sunny days.
Riding hot-air balloons can be great fun, and it's very safe as long as passengers follow the directions of the pilot. People who have a fear of heights may want to skip the experience, however.
A. Of course, some people enjoy it as a relaxing activity.
B. Low wind speeds make flying hot-air balloons much safer.
C. This, of course, is for those who love to challenge themselves.
D. The requirements of flying a hot-air balloon vary in different nations.
E. The weather is the most important concern in the safety of hot-air balloons.
F. Sometimes weather, such as lightning, is the cause of hot-air balloon accidents.
G. When the flight is over, the pilot slowly lets out air to allow the balloon to drop.
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