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.
Humans, says Edward M. Hallowell, have the ability to call up images of bad things that happened in the past and to anticipate future events. Combine these higher thought processes with our hardwired danger-detection systems, and you get a near-universal human phenomenon: worry.
Thats not necessarily a bad thing, says Hallowell, When used properly, worry is an incredible device, he says. After all, a little healthy worrying is okay if it leads to constructive action -- like having a doctor look at that weird spot on your back.
Hallowell insists, though, that theres a right way to worry. Never do it alone, get the facts and then make a plan, he says. Most of us have survived a recession, so were familiar with the belt-tightening strategies needed to survive a slump.
Unfortunately, few of us have much experience dealing with the threat of terrorism, so its been difficult to get facts about how we should respond. Thats why Hallowell believes it was okay for people to indulge some extreme worries last fall by asking doctors for Cipro and buying gas masks.
2.仔细研析题干,确定关键词语
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