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范畴：人与自我 主题：自我认识 体裁：说明文 难度：★★★★ 建议用时：8分钟 评价：____/8
Do you often forget where your socks are when you wake up in the morning? Can you remember what you ate for lunch a week ago? You may think that being forgetful isn’t a good thing. But now you should be thankful.
Scientists from Canada found forgetting is really a key part of learning. After we get rid of unnecessary information, it can help our brains work better.
What kind of information is unnecessary? Scientists say this may have something to do with the environment we live in. In an environment that is always changing, our brains may need us to remember less. For example, a supermarket cashier meets many people every day and will probably only remember them for a short time. But a designer who often meets his or her clients will remember longer.
That’s because our brains keep making new neurons. There is a special area in our brains called the hippocampus(海马体). It is important for us to learn and remember. When new neurons go into the hippocampus, they renew our old memories. This could explain why we forget so much information about the time when we were very young.
However, being forgetful is not always good. When we don’t have enough sleep, we may have a hard time remembering new information. Sleep helps our brains store new facts and information.
Forgetting is not all 1. ________
2. ________ do we forget?
· Forgetting is a key part of learning.
· 3. ________ rid of useless information can help our brains work better.
What is unnecessary information?
· It depends on 4. ________ environment we are in.
· A cashier won't remember people for a long time.
· A 5. ________ can remember his or her clients longer.
6. ________ does the brain work to help us remember?
· The hippocampus is a special area in our brains.
· Our memories are renewed when new neurons 7. ________ the hippocampus. That's why we forget many things about the time when we were young.
· Tell the effects(影响) of enough sleep on memory.（Try to give at least one effect. ）
8. ________
范畴：人与自我 主题：自我认识 体裁：说明文 难度：★★★★ 建议用时：8分钟 评价：____/8
Do you often forget where your socks are when you wake up in the morning? Can you remember what you ate for lunch a week ago? You may think that being forgetful isn’t a good thing. But now you should be thankful.
Scientists from Canada found forgetting is really a key part of learning. After we get rid of unnecessary information, it can help our brains work better.
What kind of information is unnecessary? Scientists say this may have something to do with the environment we live in. In an environment that is always changing, our brains may need us to remember less. For example, a supermarket cashier meets many people every day and will probably only remember them for a short time. But a designer who often meets his or her clients will remember longer.
That’s because our brains keep making new neurons. There is a special area in our brains called the hippocampus(海马体). It is important for us to learn and remember. When new neurons go into the hippocampus, they renew our old memories. This could explain why we forget so much information about the time when we were very young.
However, being forgetful is not always good. When we don’t have enough sleep, we may have a hard time remembering new information. Sleep helps our brains store new facts and information.
Forgetting is not all 1. ________
2. ________ do we forget?
· Forgetting is a key part of learning.
· 3. ________ rid of useless information can help our brains work better.
What is unnecessary information?
· It depends on 4. ________ environment we are in.
· A cashier won't remember people for a long time.
· A 5. ________ can remember his or her clients longer.
6. ________ does the brain work to help us remember?
· The hippocampus is a special area in our brains.
· Our memories are renewed when new neurons 7. ________ the hippocampus. That's why we forget many things about the time when we were young.
· Tell the effects(影响) of enough sleep on memory.（Try to give at least one effect. ）
8. ________
答案
1. bad 2. Why 3. Getting 4. which 5. designer
6. How 7. enter 8. Enough sleep can help the brain store new facts and information.
6. How 7. enter 8. Enough sleep can help the brain store new facts and information.
