Question

【題目】 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，并在答題卡上將選定答案的字母標號涂黑。

【1】Scientists found that forgetting things can help .

A.keep making new neuronsB.our brains work better

C.change the environmentD.have a good sleep

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

A.remember moreB.remember less

C.sleep betterD.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 sleepB.Changing environment

C.Neurons’ fitting in the hippocampusD.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

【答案】

【1】B

【2】B

【3】D

【4】A

【5】D

【解析】

這是一篇說明文。本文主要向我們介紹了遺忘并不一定是壞事，遺忘是學(xué)習(xí)的一個關(guān)鍵部分，忘記不必要的信息可以幫助大腦更好的運作；當(dāng)然，如果睡眠不足的話記新信息就會很難，所以健忘也并不總是好的。

【1】

細節(jié)理解題。根據(jù)第二段“Getting rid of unnecessary information can help our brains work better”除去不必要的信息可以幫助我們的大腦更好的工作。故選B。

【2】

細節(jié)理解題。根據(jù)第四段“In an environment that is always changing, our brains may require us to remember less”可知，在一個不斷變化的環(huán)境中，我們的大腦可能會要求我們記住更少的東西。故選B。

【3】

詞義猜測題。根據(jù)第六段“There is a special area in our brains called hippocampus. It is important for us to learn and remember. When new neurons fit in the hippocampus, they renew our old memories” 當(dāng)新的神經(jīng)元在海馬體中生長時，它們會刪除我們的舊記憶。this指代的是getting rid of unnecessary information。故選D。

【4】

細節(jié)理解題。根據(jù)最后一段“Sleep helps the brain store and keep new facts and information”有足夠的睡眠幫助大腦儲存信息和保持新的信息。故選A。

【5】

標題概括題。根據(jù)第一段“You may think that being forgetful is not a good thing. But now you should be thankful” 以及第二段“forgetting actually is a key part of learning”文章主要講述的是遺忘并不一定是壞事，遺忘是學(xué)習(xí)的一個關(guān)鍵部分。故選D。