Question

Flying is a fast way to travel. But it is a big headache for some people. They can’t help worrying about things like, “Is turbulence (颠簸) a bad thing?” or, “Is it dangerous if we don’t change our mobile phones to flight mode (飞行模式)?” British newspaper Daily Mail spoke to some experts to answer these questions. They also tell us other interesting things about flying.

Is turbulence dangerous?

It’s scary and uncomfortable. But it is not something you really need to worry about.

Turbulence is caused when two groups of air hit one another at different speeds. Wind, thunderstorms (暴风雨) and being close to mountains can be reasons for this.

You may feel like turbulence is dangerous, but it won’t crash (坠毁) your plane. “Even in extremely rough air (扰动气流), the wings (机翼) are not going to break off,” explained Patrick Smith, an airline pilot, who is also an air travel blogger and author of AskThePilot.com.

Why are plane windows round?

Round windows are for passenger safety.

As the airplane flies higher and higher, the outside atmospheric pressure (气压) gets lower and lower. During the flight, the pressure inside the plane becomes greater than the pressure outside.

When this happens, square windows can break. That’s because having different pressures inside and outside puts pressure on the corners of square windows. But rounded corners can spread the pressure through the window.

What happens when a phone isn’t on flight mode?

Some passengers believe mobile phones and tablets need to be turned off because they could bring the plane down. However, this is not true.

If you don’t change your phone to flight mode, pilots and air traffic controllers may hear unpleasant sounds in their headphones. It also influences radio communications. So it’s still best to put it on flight mode.

1.According to Paragraph 1, we learn that the story is going to _____.

A. show what worries people may have about flying

B. interview some experts about flying

C. give people tips about how to travel by plane

D. explain some interesting facts about flying

2.What will happen when there is turbulence?

A. People may feel uncomfortable.

B. Two planes may hit each other easily.

C. It will make the plane drop suddenly.

D. It can break off the plane wings.

3.Planes use round windows rather than square ones, because ____.

A. round windows can spread the pressure

B. round windows can add outside pressure

C. square windows can lower(降低) the pressure on the windows

D. the corners of square windows are difficult to make

4.What happens if a phone isn’t on flight mode?

A. The plane will crash.

B. Air traffic controllers can’t get any information.

C. It may influence radio communications.

D. It may be noisy in the plane.

5.The passage may be taken from _______.

A. A story book   B. A science magazine

C. A guide travel  D. A novel

Answer

1.D

2.A

3.A

4.C

5.B

【解析】

试题分析：短文大意：该文主要介绍有关飞行的一些有趣的事实。如颠簸是可怕的和不舒服的。但这并不是你真正需要担心的事情。圆形窗户用于乘客安全等等。

1.D细节理解题。根据第一段的描述可知该段主要是告诉我们一些关于飞行的有趣的事情。所以选D。

2.A细节理解题。根据文中Is turbulence dangerous?It’s scary and uncomfortable.可知当颠簸发生时人们会感觉不舒服，所以选A。

3.A细节理解题。根据文中But rounded corners can spread the pressure through the window可知圆角可以通过窗口扩散压力。所以选A。

4.C细节理解题。根据最后一段中If you don’t change your phone to flight mode, pilots and air traffic controllers may hear unpleasant sounds in their headphones. It also influences radio communications.可知它会影响无线电通信。所以选C。

5.该文主要介绍有关飞行的一些有趣的事实，所以选B。

考点：日常生活类短文阅读。