Question

【題目】閱讀下面材料，從每題所給的A、B、C、D四個選項中選出最佳選項

Your brain controls everything you do. It makes it possible for you to think, Learn, create and feel; to blink(眨眼) and breathe and for your heart to heat –this fantastic control center is your brain. It is so amazing that a famous scientist once called it " the most complex(復雜) thing we have yet discovered in our universe".

Can this small grey organ(器官) , which weighs less than one and a half kilos,

really do so much? Amazingly , your brain contains about 100 billion neurons(神經(jīng)元) -it would take you over 3 ,000 years to count them all. Believe it or not, the activity in your brain never stops. Your neurons create and send more messages than all the phones in the world. And although one neumn creates only a little electricity, all your neurons together can produce enough electricity to power a light bulb (燈泡).

So exactly how fast does your brain work? Well, imagine this: a bee lands on your foot. Neurons in your skin send this information to your brain at a speed of more than 240 kilometers per hour. Your brain then uses other neurons to send the message back to your foot to shake the bee off quickly. These neurons can send this information at more than 320 kilometers per hour. No computer has your hrain's unbelievable ability to deal with the amount of information coming from your eyes, ears and other sensory organs.

But how does your brain allow you to leam things Lhat you will use in the future? The structure (結(jié)構(gòu)) of your brain changes every time you have a new thought, remember or leam something. For example, riding a bike seems impossible at first, but soon you are able to do it. How? As you practice, your brain sends "bike riding" messages again and again Soon, the actions are learnt and you are able to ride a bike easily from then on.

【1】From the passage we know that neurons______________ .

A. receive messages very slowly

B. are only found in your skin

C. send messages to your brain

D. need electricity to work

【2】In Paragraph 3, the writer mentions computers to ______________ .

A. compare them wich the human brain

B. show how fast they have become

C. say that computers have no abilities

D. ask people to use computers more

【3】When you have a new thought, ______________ .

A. your brain will power a light bulb

B. your heart beats faster

C. you remember something

D. the structure of your brain changes

【4】The article is mainly ahout ________________ .

A all the steps when your brain leams things

A. what an unbelievable organ the human brain is

B. how the brain makes people smarter than computers

C. the things you can do to make your brain work faster

Answer 1

【答案】

【1】C

【2】A

【3】D

【4】B

【解析】試題本文主要講述了大腦是神奇的控制中心，它控制著你的思考，學習，感受和創(chuàng)造等等。

【1】C考查細節(jié)理解題。根據(jù)文中 your brain contains about 100 billion neurons(神經(jīng)元) -it would take you over 3 ,000 years to count them all. 可知，神經(jīng)元把信息發(fā)送到我們的大腦。故選C。

【2】A考查細節(jié)理解題。通讀整個第三段可知，主要介紹了人類的大腦和電腦的；故選A。

【3】D考查細節(jié)理解題。根據(jù)文中The structure (結(jié)構(gòu)) of your brain changes every time you have a new thought, remember or leam something.可知當一個小孩丟了，當你有了新的想法的時候，你大腦的結(jié)構(gòu)就會改變，故選D。

【4】B考查主旨大意題。通讀整篇短文可知，這篇短文主要講述了人類的大腦是一個多么令人難以置信的器官�？芍�選B。