As children grow up, they become curious about different kinds of things. When they are babies, they are interested in the parts of their bodies and in the smiles of their mothers. The they become interested in the physical world around them: the plants, the
animals, the sky. Later, they become interested in the things that people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career (生涯、职业) in science.
Scientists spend their lives trying to find out about the world. Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e. g. physics, chemistry .
These scientists have already discovered a lot about our world. For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too . So your brain sends a signal to the heart. The signal means that the muscles need more nutrition and oxygen. Then the heart beats fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.
Of course, scientists cannot answer all of our questions. If we ask, “Why does the ocean water taste salty?”
Scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask , “What happens to the salt in the ocean? The ocean does not get saltier every year.” Scientists are not sure about the answer to this question.
We know a lot about our world, but there are still many answers that we do not have, and we are curious.
1.According to the passage, which of the following statements is true?
A．People are curious in the same way.
B．People in different countries are interested in different things.
C．Men and women are curious about different things.
D．People of different ages are interested in different things
2.Scientists who work with the biological sciences study____.
A．the earth , the oceans and the sky
B．man-made things
C．plants and animals
D．ocean water
3.When you run, your muscles need ____.
A．more nutrition and oxygen B．more signals C．more salt D．water
To me, life without music would not be exciting. I realize that this is not true for everybody. Many people get along quite well without going to the concert, and listening to the record. But music plays an important part in everyone's life, whether he realizes it or not. Try to imagine, for example, what films or TV plays would be like without music. Would the feelings, the moving plot, and the greatest interests, be so exciting or dramatic? I'm not sure about it.
Now, we have been speaking of music in its more common meaning----the kind of music we hear in the concert hall. But if we look at some parts of music more closely, we discover them in our everyday life too----in the rhythm of the sea, the melody of a bird in the woods and so on. So music surely has meaning for everyone, in some way or other. And, of course, it has special meaning for those who have spent all their lives working on playing or writing music.
It is well said, “Through music a child enters into a world of beauty, expresses himself from his heart, feels the joy of doing things alone, learns to take care of others, develops his mind and makes his body strong.”
1.What dose the writer say more about in the text?
A．Life full of music.
B．Life without music.
C．The importance of music.
D．The development of music.
2.From the text, we learn that many people________.
A．don't realize the importance of music
B．get along quite well without music
C．go to the concert instead of enjoying music
D．think music would be less exciting than films
3.What does the underlined word “melody” mean in the text?
A．flying B．looking C．singing D．living
4.From the last paragraph, we learn that music________.
A．is very important, especially for children
B．is very necessary for our everyday life
C．can make our life exciting and dramatic
D．can enter into another beautiful world
After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the day. The rest that you get while sleeping makes it possible for your body to prepare itself for the next day.
There are four levels of sleep, each being a little deeper than the one before. As you sleep, your body relaxes (放松) little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts (变换) back and forth from one level of sleep to the other.
Though your mind slows down, you will dream from time to time. Scientists who study sleep point out that when dreaming occurs, your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement.
If you have trouble falling asleep, some people recommend (建议) breathing very slowly and very deeply. Other people believe that drinking warm milk will make you drowsy. There is also an old suggestion that counting sheep will put you to sleep.
1.The text suggests that not getting enough sleep might make you _____.
A．suffer from poor health B．feel tired and nervous
C．dream more often D．breathe quickly
2.During REM, _____.
A．you move restlessly
B．you start dreaming
C．your mind stops working
D．your eyeballs move quickly
3.The underlined word "drowsy" in the last paragraph probably means _____.
A．lazy B．sleepy C．relaxed D．pleased
4.A good title for this text might be _____.
A．Dreams B．Sleep
C．Good Health D．Work and Rest
One day a rich man was invited to dinner at the home of one of his friends. He did not know what to 36 the wine, meat and chicken he had just bought. Certainly he could not 37 them to the servant. Then he had 38 idea. He called up the servant and 39 to him.
"I'll be away for the whole evening, and I'll leave you to look after the house. In the cupboard there are two bottles filled with 40 . Be careful about it. You'll be killed if you take even a 41 of it. There is also some meat and chicken in the cupboard. Take care of them". 42 these words the rich man left the home.
43 the master turned his back, the servant opened the cupboard and began to enjoy all the nice things in it. He 44 the two bottles and ate up the meat, the chicken and 45 he found in the cupboard. He was 46 and soon fell 47 .
At mid-night the rich man returned home. He looked into the cupboard and to his great 48 , all the wine and food were 49 . He was mad with 50 and called the servant up.
"Oh, Master," the servant began to say 51 the rich man could open his mouth; "while you were away, the neighbor's black cat stole into our kitchen and ate up every things in the cupboard. I know you would be angry with me. I was so 52 that I drank the two bottles of poison to kill 53 “there were tears in the servant's eyes.”Oh, Master," he continued, "Please don't get angry with a 54 _ man. I'll soon be dead.
The rich man, of course, did not 55 a word of his story. But again, he could do nothing about it.
1. A．make B．put into C．deal with D．do with
2. A．buy B．cook C．leave D．bring
3. A．some B．an C．the D．no
4. A．said B．told C．spoke D．talked
5. A．water B．oil C．wine D．poison
6. A．piece B．drop C．lot D．bottle
7. A．At B．On C．With D．Hearing
8. A．Before B．While C．Hardly when D．As soon as
9. A．broke B．emptied C．removed D．cleaned
10. A．that B．what C．something D．everything else
11. A．satisfied B．excited C．worried D．disappointed
12. A．sleep B．asleep C．sleepy D．sleeping
13. A．surprising B．surprise C．surprised D．joy
14. A．gone B．left C．missed D．disappeared
15. A．tears B．scene C．anger D．a smile
16. A．when B．after C．as D．before
17. A．afraid B．sad C．anxious D．sure
18. A．the cat B．the man C．myself D．the neighbor
19. A．dead B．dying C．living D．wounded
20. A．say B．hear C．believe D．listen to
---Whose advice do you think I should take?
---______.
A．It’s up to you B．You speak C． That’s it D．You got it
Teenage students who are ________computer games usually would not focus on studies .
A．anxious about B．addicted to C．particular about D．bored with
