Question

【題目】

You must think a computer is the best thing in the world, right? You must think it works at a super speed and can do everything? Well, it’s not! In fact, the brain is much more powerful than any super computer! Think about when a glass is just about to fall off the table. Your brain controls everything that you need to do to save that glass from falling. First your eyes check out what’s going on, then tell your brain, and your brain decides how quickly you need to react (反應(yīng)), and then your muscles (肌肉) go into action. That is just from your brain. No computer could ever come close to that!

The brain weighs just 3 pounds, but it controls everything you do from thinking, learning, feeling even to breathing and your heart beating. Even though the brain is just 2% of your body weight, it uses around 20% of all your energy in your body. That is a lot for such a small organ (器官). There are about 100 billion tiny, tiny little cells in your brain. There are so many that it would take you over 3,000 years to count them all!

Your brain stops growing when you’re 18, but it actually keeps on developing and learning new things. So your parents are really super smart! You won’t be able to fool them! Believe it or not, your brain NEVER stops working. Even during sleeping, the brain works for long-term memory establishment (建立). It is realized that the brain is the second organ in the body as the heart that never stops during human lives.

So everyone should be proud of such a gift of nature.

【1】In Paragraph 1,the writer wants to tell us .

A.eyes and muscles react quicklyB.the brain controls everything in your body

C.the computer is the best thing in the worldD.the brain is more powerful than any computer

【2】What can we know from the passage?

A.The brain doesn’t work during sleeping.B.The brain is the only organ that never stops.

C.The brain keeps growing during human lives.D.The brain keeps on developing during human lives.

【3】Which word can best describe the brain according to the passage?

A.Magic.B.Quick.C.Light.D.Developing.

【4】In which magazine can the passage be found most probably?

A.Business Weekly.B.Medicine.C.Science.D.Sports.

Answer 1

【答案】

【1】D

【2】D

【3】A

【4】C

【解析】

本文主要講述的是有關(guān)大腦的事情，大腦明顯優(yōu)于計算機，大腦雖然在18歲之后就停止了生長，但是它會一直工作到生命的結(jié)束。

【1】段落大意題。根據(jù)文中“In fact, the brain is much more powerful than any super computer”!事實上，大腦比任何超級計算機都強大得多�？芍�講述的是電腦遠(yuǎn)遠(yuǎn)比不上人腦，故選D。

【2】細(xì)節(jié)理解題。根據(jù)文中“it uses around 20% of all your energy in your body”.用掉所有能量的20%，由此可知他的能量消耗比較大，故選D。

【3】推理判斷題。根據(jù)文中“It is realized that the brain is the second organ in the body as the heart that never stops during human lives”.大腦不會停止工作，前文也提到他控制著我們身體的每一個器官，由此可知這是一個神奇的器官，故選A。

【4】主旨大意題。文章主要講述的是有關(guān)大腦的事情，講述了其生長以及工作的情況，這是科普性質(zhì)的闡述，最有可能來源于科學(xué)雜志，故選C。