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It's good to have a healthy sense of what ' s dangerous

What good is fear?

Fear is a tool that the brain uses to keep the body safe. 1.. Faster heartbeat and breathing send more blood and oxygen to the muscles so they are ready when they’ re needed. Stress chemicals can make a person more alarmed. 2.. We keep a close eye on babies because they don' t understand what might hurt them. As babies grow, they learn what’ s unsafe, and their brains store those memories. Then their brains use fear to warn them of dangers.

3.

Experiences can lead to long-lasting fears that may stop a person from trying new things. We're born with the ability to feel fear, but a lot of what we're afraid of is learned. “Being afraid doesn't mean you're weak. ”Dr. Kerr says. 4.. And your brain doesn't want you to have it again. If a dog bit someone, that person might feel afraid of all dogs. Other people may have no special fear of dogs but may be afraid of other things, such as heights, snakes or spiders.

How to feel less afraid

Many people have beaten their own fears. Here's one method: Instead of listening to their imagination, they learn the facts about anything that seems scary. 5..

A.Too much can be harmful

B.Our memories also help protect us

C.For some people, choosing to be scared can be fun

D.Knowledge can help a person feel less afraid

E.It urges a person to hide, run away, or defend oneself

F.Understanding the fact gives me a sense of confidence

G.A long-lasting fear can mean you've had a bad experience

高二英语七选五中等难度题

少年,再来一题如何?
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