Passage Three
So we've already talked a bit about the growth of extreme sports like rock-climbing.
As psychologists,we need to ask ourselves "Why is this person doing this?",
"Why do people take these risks and put themselves in danger when they don't have to?"
One common trait among risk-takers is that they enjoy strong feelings or sensations.
We call this trait "sensation seeking".
A sensation-seeker is someone who is always looking for new sensations.
What else do we know about sensation seekers?
Well,as I said,sensation-seekers like strong emotions.
You can see this trait in many parts of a person's life not just in extreme sports.
For example,many sensation seekers enjoy hard rock music.
They like the loud sound and strong emotions of the songs.
Similarly,sensation-seekers enjoy frightening horror movies.
They like the feeling of being scared and horrified while watching the movie.
This feeling is even stronger for extreme sports where the person faces real danger.
Sensation-seekers feel that danger is really exciting.
In addition,sensation-seekers like new experiences that force them to push their personal limits.
For them,repeating the same things everyday is boring.
Many sensation-seekers choose jobs that involve risk,such as starting a new business or being an Emergency Room doctor.
These jobs are different everyday,so they never know what will happen.
That's why many sensation-seekers also like extreme sports.
When you do rock-climbing,you never know what will happen.
The activity is always new and different.

Questions 33 to 35 are based on the passage you've just heard.
33.According to the speaker,what is a common trait among risk-takers?
34.What do sensation-seekers find boring?
35.What is the speaker's profession?