【题目】

Some people remember the things by writing notes to themselves. Then they leave the notes in obvious (明显的) places, such as on the table, on the floor or in the middle of the living room. I don’t think I like to write notes to myself, Most of the time I lose them or forget to look at them until it’s too late. I would rather use an alarm clock to tell me what I should do. I have ten alarm clocks in my house. They could tell me about things. For example, if I have to make a telephone call al a certain time. I' 11 set an alarm clock to go off a few minutes early and put the clock by the telephone. Or if I want to watch a certain television programme, I' ll set an alarm clock at the right time and put the clock on top of the TV set, I can remember almost anything if I use my clocks. However, sometimes an alarm clock goes off and I don’t know what it means. I always remember setting it, but not why I set it. If the clock is by the telephone, I know I may have set it to tell me to call someone, but I can’t be sure. I might have set it to tell myself that somebody was to call me at a certain time.

根据短文内容,判断下列各句正误。正确的在题前括号内写“T¨,错误的写“F”。

1Some people like to write notes to themselves so that they can remember what to do at a certain time.

2The writer doesn’t like to write notes to himself.

3The writer often uses a computer to help him remember things.

4Sometimes an alarm clock can do the housework for the writer.

5The writer prefers remembering the things by writing notes to using alarm clocks.

【题目】

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 neuron 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 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 (结构) 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.

1From 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

2In Paragraph 3, the writer mentions computers to ___________ .

A. compare them with the human brain

B. show how fast they have become

C. say that computers have no abilities

D. ask people to use computers more

3When 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

4Which of the statements about the brain is TRUE?

A. The speed of the neurons in the brain can be up to 320 kilometers per minute.

B. The electricity produced by the neurons can hardly power a light bulb.

C. We learn a new skill by sending the messages again and again through the brain.

D. After receiving the information, the brain send the same neurons back to your foot.

5The 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

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