4. From the passage we can indicate that ________.

A. those who have logistics as a major probably can't find jobs some years later

B. one should choose a general major if one wants to get a good job after graduation

C. the narrow majors include education and marketing

D. some unimportant majors might be given up in recent years

(B)

/Words: 360 Time: 7'/

You have waited 40 minutes for the valuable 10-minute break between classes. But when the bell for the next class rings, you can't believe how quickly time has passed.

If you are familiar with this scene, you'll know how time flies when you are having fun - and drags when you are bored. Now scientists have come up with a reason why this is the case.

Scans(扫描) have shown that patterns of activity in the brain change according to how we focus on a task.

When we are bored, we concentrate more on how time is passing. This makes our brains think the clock is ticking more slowly.

In a study conducted by a French laboratory, 12 volunteers watched an image while researchers monitored their brain activity using Magnetic Resonance Imaging (MRI, 磁共振成像) scans.

The volunteers were told to first concentrate on how long an image appeared for, then focus on the colour of the image, and thirdly, study both duration (持续的时间) and colour.

The results showed that the brain was more active when the volunteers paid attention to more subjects.

It is thought that if the brain is busy focusing on many aspects of a task, it has to spread its resources, and pays less attention to the clock.

Therefore, time passes without us really noticing it, and seems to go quickly.

If the brain is not so active, it concentrates its full energies on monitoring the passing of time. As a result, time seems to drag.

However, the researchers found that the more the volunteers concentrated on how long an image appeared for, the more accurate(准确) were their estimates of its duration.

Lead researcher Dr Jennifer Coull said many areas of the brain help estimate time. These areas also play a key role in controlling movement and preparing for action.

"This suggests that the brain may make sense of time as intervals between movements," she explained. "For example, a musician marks time with his foot, while an athlete anticipates (预期) the sound of a starter's pistol."

Next time you feel bored in class, perhaps you should pay more attention to what the teacher is saying!

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