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Romantic novelists rarely fail to include in their writings that special moment when two strangers look into each other's eyes across a crowded room and feel the tingle of desire. Now these writings have now been validated(证实)by science, for experts have discovered that eye-to-eye contact in fact leads to a burst of activity in the reward center of the brain.
Neuroscientists at University College London asked eight female and eight male volunteers to look at photos of the faces of 40 different people who were either looking at the camera or gazing to one side.
While the volunteers looked at the pictures, they were given a scan with functional magnetic resonance imaging(磁性共振成影仪器), which measures increased blood flows to the various parts of the brain and thus provides a "map" of cerebral activity(大脑活动).
The volunteers were then asked to rate the attractiveness of each face, and their score was matched against the scan.
The result: when volunteer had direct eye contact with the face, there was an increase of activity in the ventral striatum(腹面纹状体), a central part of the brain that anticipates reward or pleasure. But if the eyes did not meet, there was no activity in that brain area at all. The activity increase occurred regardless of the gender of the face in direct eye contact.
However, there was a bigger-than-usual increase if the person giving the eye was found to be attractive. Activity in the ventral striatum surged. But if the cute person gazed to one side, the ventral striatum remained dormant, apparently disappointed that the stranger was clearly not interested.
Interestingly, the ventral striatum also perked up if a plug-ugly person gazed to one side, rather than looked at the volunteer right in the eyes.
Origin of the experiment
Romantic novelists like to describe in their writings that two strangers look into each other's eyes across a crowded room and feel the tingle of desire in a special ____71____.
__72__ of the experiment
Investigate whether eye-to-eye contact ____73____ a burst of activity in the reward center of the brain.

Procedure of the experiment
◆Ask ____74____ volunteers(8 female and 8 male)to look at photos of the faces of 40 different people who were either looking at the camera or gazing to one side.
◆____75____ blood flows to the various parts of the volunteers’ brain and thus provides a "map" of cerebral activity.
◆Ask the volunteers to rate the attractiveness of all ____76____,
◆____77____ their score against the scan.

____78____ of the experiment
◆As long as the eyes meet ____79____, there must be activities in the brain area. On the other hand, there is no activity at all.
◆The activity of the brain is also ___80_____ with the people’s appearance closely.
2010·江苏·一模
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Now let us look at how we read. When we read a printed text, our eyes move across a page in short, rough movement. We recognize words usually when our eyes are still when they fixate (凝视). Each time they fixate, we see a group of words. This is known as the recognition span or the visual span. The length of time of which the eyes stop -the duration of the fixation — varies considerably from person to person. It also varies within one person according to his purpose in reading and his familiarity with the text. Furthermore, it can be affected by such factors as lighting and tiredness.

Unfortunately, in the past, many reading improvement courses have concentrated too much on how our eyes move across the printed page. As a result of this misleading emphasis on the purely visual aspects of reading, numerous exercises have been devised to train the eyes to see more words at one fixation. For instance, in some exercises, words are flashed on to a screen for, say, a tenth or a twentieth of a second. One of the exercises has required students to fix their eyes on some central point, taking in the words on either side. Such word patterns are often constructed in the shape of rather steep pyramids so the reader takes in more and more words at each successive fixation. All these exercises are very clever, but it’s one thing to improve a person’s ability to see words and quite another thing to improve his ability to read a text efficiently. Reading requires the ability to understand the relationship between words. Consequently, for these reasons, many experts have now begun to question the usefulness of eye training, especially since any approach which trains a person to read isolated words and phrases would seem unlikely to help him in reading a continuous text.

The author may believe that reading ______.
A.requires a reader to take in more words at each fixation
B.requires a reader to see words more quickly
C.demands a deeply-participating mind
D.demands more mind than eyes

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