阅读要熟悉并掌握课上讲解的六级整体解题规律,确定题型,抓住题干关键;浏览全文,找到关键和出题点;依次而下确定出题区域。
Passage One
Questions 52 to 56 are based on the following passage.
In a purely biological sense, fear begins with the bodys system for reacting to things that can harm usthe so-called fight-or-flight response. An animal that cant detect danger cant stay alive, says Joseph LeDoux. Like animals, humans evolved with an elaborate mechanism for processing information about potential threats. At its core is a cluster of neurons deep in the brain known as the amygdale .
LeDoux studies the way animals and humans respond to threats to understand how we form memories of significant events in our lives. The amygdale receives input from many parts of the brain, including regions responsible for retrieving memories. Using this information, the amygdale appraises a situationI think this charging dog wants to bite meand triggers a response by radiating nerve signals throughout the body. These signals produce the familiar signs of distress: trembling, perspiration and fast-moving feet, just to name three.
This fear mechanism is critical to the survival of all animals, but no one can say for sure whether beasts other than humans know theyre afraid. That is, as LeDoux says, if you put that system into a brain that has consciousness, then you get the feeling of fear.
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