阅读下面材料,从每题所给的A、B、C、D四个选项中选出最佳选项

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(复杂) 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(神经元) -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 (灯泡).

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 (结构) 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

Johnnie Martin was born in a worker's family. His parents lived a simple life, saving money for the day when they could send him to a good university. They had dreamed that their son could get a good ____ and live a better life. However, to Johnnie, school lessons seemed like a wall that was impossible to go through.

One day when he was in Grade 11, Johnnie went ____ the school psychologist's (心理学家的) office to ask for help.

“Johnnie, I've been studying your marks of all the tests at school. I've made a ____ study of them,” said the psychologist.

“I've been trying hard,” Johnnie was about to ____.

The psychologist put his hand on the boy's shoulder, “People have different kinds of talents, Johnnie. There are painters who were ____ able to learn Maths, and engineers who can't sing on key. Some day you will find __ you are good at, and when you do, you will make your parents and all of us very ____ you.”

Johnnie didn't go to university. He found a job working in the garden around the town. Soon ____ amazing happened. His customers began to notice that Johnnie had what they called a “green thumb”. The plants he ____ grew, and the roses blossomed (开花). People started to accept his ____ for gardening, because he had an eye for colour and light.

One day while he was downtown(在市区), he happened to ____ an unusual dirty land behind the city hall. He volunteered to make it into a garden. That very afternoon as soon as he got the permission (许可), he started the work, ____ he couldn't afford all the tools or the plants that were ____ for it. People gave him young trees, rose?bushes, benches and many other things. Before long, it had become a beautiful little ____.

Today Johnnie is the head of the business in gardening. Wherever he and his men go, they ____ beauty before the eyes of people.

1.A. job B. garden C. lesson D. present

2.A. into B. past C. along D. through

3.A. funny B. public C. careful D. similar

4.A. lie B. cry C. laugh D. agree

5.A. always B. usually C. sometimes D. never

6.A. how B. when C. what D. where

7.A. strict with B. proud of C. angry with D. sure of

8.A. nothing B. anything C. something D. everything

9.A. picked up B. pointed at C. talked about D. looked after

10.A. suggestions B. invitations C. situation D. attention

11.A. buy B. rent C. clean D. notice

12.A. but B. and C. so D. or

13.A. common B. natural C. possible D. necessary

14.A. farm B. lake C. park D. market

15.A. find B. spread C. collect D. describe

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