Question

Have you ever forgotten 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 is not a good thing. But now you should be thankful.

Scientists from University of Toronto found that forgetting actually is a key part of learning. Getting rid of (除去) unnecessary information can help our brains work better.

What kind of information is unnecessary? Scientists say that this may have something to do with the environment you live in.

In an environment that is always changing, our brains may require us to remember less. For example, a supermarket cashier (收銀員) meets many people every day and will probably only remember them for a short time. But a designer (設(shè)計(jì)師) who often meets his or her clients (客戶) will remember longer.

“That’s because our brains keep making new neurons (神經(jīng)元) from stem cells (干細(xì)胞). ”said Paul Frankland, a professor at the University of Toronto.

There is a special area in our brains called hippocampus (海馬體). It is important for us to learn and remember. When new neurons fit in the hippocampus, they renew our old memories. This could explain why you forget so much information about the time when you were very young.

However, being forgetful is not always good. When you don’t have enough sleep, you may have a hard time remembering new information. Sleep helps the brain store and keep new facts and information. Matthew Walker from the University of California told the Huffington Post.  

根據(jù)短文內(nèi)容，選擇最佳選項(xiàng)，并在答題卡上將選定答案的字母標(biāo)號(hào)涂黑。

1.Scientists found that forgetting things can help .

A.keep making new neurons B.our brains work better

C.change the environment D.have a good sleep

2.We may in an environment that is always changing.

A.remember more B.remember less

C.sleep better D.sleep worse

3.According to the passage, the underlined word This refer to (指的是) .

A.making new neurons from stem cells

B.learning and remembering new things

C.new neurons’ renewing our old memories

D.getting rid of unnecessary information

4. helps the brain store and keep new facts and information.

A.Having enough sleep B.Changing environment

C.Neurons’ fitting in the hippocampus D.Working hard

5.What is the best title of the passage?

A.How to remember new information

B.How to forget things easily

C.Sleeping is important.

D.Forgetting is not bad.

Answer 1