Question

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(反应), 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(细胞) 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 long­term memory establishment.  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.From the first paragraph we know that ________.

A.eyes and muscles react quickly

B.the brain controls everything in your body

C.the computer is the best thing in the world

D.the brain is more powerful than any computer

2.Which of the following is TRUE according to 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.In which magazine can the passage be found most probably?

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

4.The underlined word“establishment”in the passage means“________” in Chinese.

A.储存 B.形成 C.空缺 D.建立

5.The best title for this passage is “________”．

A.A Powerful Organ—Human Brain

B.How Computers Work

C.Scientists' Research

D.Human Being's Activities

Answer

1.D

2.D

3.C

4.D

5.A

【解析】

主旨大意：本文是一篇说明文。主要通过介绍人类大脑的神奇功能，来说明大脑比任何计算机都强大得多。
13.推理判断题。题干意为：在哪个杂志最可能找到这篇文章？通读全文内容可知，本文主要介绍大脑的神奇功能，可推知，本文最可能来自《科学》杂志。故选C。
14.词义猜测题。题干意为：文中画线单词“establishment”的汉语意思是________。根据所给词所在的位置并结合上下文语境可知，“建立”符合原文的句意。故选D。
15.标题归纳题。题干意为：这篇文章的最佳标题是________。由文章内容可知，文章介绍了人类大脑的神奇功能，A项符合全文主旨。故选A。