题目

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. 答案：71. moment        72. Purpose / Aim        73. causes        74. 16 / sixteen 75. Measure        76. faces               77. Match        78. Results  79. directly        80. associated / connected One possible version: How to Solve the Problem of Heavy Traffic? With the development of economy, more and more vehicles are going on the streets. As a result, most cities, especially the big ones, suffer from traffic congestion. Heavy traffic has become one of the major concerns of the society. To solve the problem, people have put forward many solutions, of which the following two are typical. One is to lay down more roads. It will make the highways less crowded and quicken the flow of traffic. Another is to open up more bus routes. In this case, more people will take buses rather ride bikes or drive cars. Then the number of cars and bikes racing on the streets will decline. However, either of the two solutions brings about problems at the same time. The former may occupy too much land, which can be otherwise more effectively used. For the latter, it will cause inconvenience to those who are living far away from the bus stops. The best solution, in my eyes is to combine the two; building more roads where hand is less profitable and opening up more buses routes in downtown areas at once.

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