1 . Indoor Skydiving

Have you ever dreamt of flying? Have you ever wanted to experience the excitement of skydiving, but didn’t want to jump out of a plane? Indoor skydiving has opened up a whole new world for you to try flying.

Indoor skydiving is an activity, simulating（模拟）the free fall of a skydive. That means you learn to fly in a column of air produced by a wind tunnel （风道） inside a limited area. Before flying, you need to wear certain equipment to protect you. And each of you is equipped with an instructor that helps you learn to control your body while flying. But you aren’t trained to be more aware in the sky as a normal skydiver.

To be an indoor flyer, you can be at all ages. Fear of height or lack (缺少) of experience won’t stop you from trying. The only real limitation preventing people from flying is weight limit. Countless physically challenged flyers have safely flown with the help of experienced instructors.

Although indoor skydiving gets its name from skydiving, the similarities between the two are actually very few. The one they are in common is in the sense that they both share the freedom of flying.

However, in traditional dives, skydivers usually step out of a plane from more than 10,000 feet high, while indoor skydiving just needs flyers to lean forward and lie on the air. Also, being an outdoor activity, skydiving depends on the weather. The wind, rain, or snow can cancel your plans to jump. Indoor skydiving removes this effect from the picture. Normally, a skydive lasts just between 45-60 seconds, but tunnels allow skydivers to fly longer and as much as they like.

While most people put skydiving in the must-do list, indoor skydiving is much more than that! What used to take skydivers tens of thousands of jumps and years of experience can be learned in a relatively shorter period of time. Skydivers could be trained at lower cost compared to being trained in the sky. Because people of all ages can fly, children are quickly becoming some of the most talented skydivers. Thus, all these will certainly benefit the development of skydiving.

1. What do indoor skydivers need to do before flying?

A．Jump out of a plane.	B．Become aware of the sky.
C．Produce a column of air.	D．Put on protecting equipment.

2. What may prevent people from trying indoor skydiving?

A．Their age.	B．Fear of height.
C．Their weight.	D．Lack of experience.

3. What do skydiving and indoor skydiving have in common?

A．The sense of flying.	B．The cost of training.
C．The length of free fall.	D．The dependence on weather.

4. Which of the following might the author agree with?

A．The future of skydiving depends on children.

B．Indoor skydiving is beneficial to skydiving.

C．Fewer people show interest in skydiving.

D．Indoor skydiving will replace skydiving.