Question

【題目】閱讀理解。
D
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(fù)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 neuron 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 brain'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 learn things that 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 learn 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 which 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 about .
A.all the steps when your brain learns things
B.what an unbelievable organ the human brain is
C.how the brain makes people smarter than computers
D.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】這是一篇科普類短文閱讀。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(xué)習(xí)，感受和創(chuàng)造等等。
（1）C 考查細(xì)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 細(xì)節(jié)理解題．根據(jù) “No computer has your brain's unbelievable ability to deal with the amount of information coming from your eyes, ears and other sensory organs.” 沒有電腦能夠處理這么大量的來自眼睛，耳朵以及其他感官的信息。主要是用電腦和人腦進(jìn)行比較。故選A。
（3）D 細(xì)節(jié)理解題．根據(jù)“The structure （結(jié)構(gòu)）of your brain changes every time you have a new thought”可知當(dāng)有新的想法的時(shí)候，大腦的結(jié)構(gòu)就會(huì)發(fā)生變化．故選D.
（4）B 主旨大意題．本文主要介紹了人的大腦---這個(gè)神奇的器官.大腦控制一切，它會(huì)讓我們思考，學(xué)習(xí)，創(chuàng)造，感覺，眨眼，呼吸，心跳，科學(xué)家把它稱為“宇宙中最復(fù)雜的東西”.故選B.