题目内容：
How We Form First Impression1．We all have first impression of someone we just met．But why? Why do we form anopinion about someone without really knowing anything about him or her-aside perhapsfrom a few remarks or readily observable traits(特征)?
2．The answer is related to how your brain allows you to be aware of the world．Your brain is so sensitive in picking up facial traits， even very minor difference in how aperson’s eyes， ears， nose or mouth are placed in relation to each other， that it makes you see him or her as different．In fact， your brain continuously processes incoming sensory (感官的) information-- the sights and sounds of your world．These incoming“signals” arecompared against a host of (许多 )“memories” stored in the brain areas called the cortex(大脑皮层)system to determine what these new signals “mean”.
3．If you see someone you know and like at school， your brain says “familiar andsafe”．If you see someone new， it says， “new-potentially threatening”．Then your brainstarts to match features of this stranger with other “known” memories．The height, weight, dress, ethnicity(种族特点), gestures, and tone of voice are all matched up．The more unfamiliar the characteristics, the more your brain may say, “This is new．I don’ like this person: ” Or else,“I am intrigued．”Or your brain may perceive a new face but familiar clothes, ethnicity, gestures like your other friends； so your brain says, “I like this person．” But these preliminary “impressions” can be dead wrong.
4．When we stereotvpe〔对……产生成见〕people, we use a less mature form of thinking (not unlike the immature thinking of a very young child) that makes simplistic(过分简单化的)and categorical impressions of others．Rather than learn about the depth andbreadth of people -- their history, interest, values, strengths, and true character -- we categorize them as jocks(骗子), geeks (傻瓜), or freaks(怪人).
5．However, if we resist initial stereotypical impressions, we have a chance to be aware of what a person is truly like， If we spend time with a person, hear about his or herlife, hopes, dreams, and become aware of the person’s character, we use a different,more mature style of thinking--and the most complex areas of our cortex, which allow us to be humane(有人清味的).
A．Ways of Departure from Immature and Simplistic Impression
B．Comment on First Impression
C．Illustra titlon of First Impression
D．Comparing Incoming Sensory Information Against Memories
E．Threatening Aspect of First Impression
F．Differences Among Jocks，Geeks and Freaks
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