Nuclear power's danger to health, safety, and even life itself can be described in one word; radiation(辐射).

    Nuclear radiation has a certain mystery about it, partly because it cannot be detected (探测) by human senses. It can't be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we can't detect them, sense them, without a radio receiver. Similarly, we can't sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.

    At very high levels, radiation can kill an animal or human being completely by killing masses of cells in important organs (器官). But even the lowest levels can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be significant. This is the case when only a few cells are hit, and if they are killed completely. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in an unusual way. They can grow into cancer. Sometimes this does not show up for many years.

This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the knowledge of the person at the time that damage has occurred. A person can be irradiated(放射治疗) and feel fine, then die of cancer five, ten, or twenty years later as a result. Or a child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents.

     Radiation can hurt us. We must know the truth.

According to the passage, the danger of nuclear power lies in __________.

A. nuclear mystery              B. radiation detection

C. radiation level                 D. nuclear radiation

Radiation can lead to serious results even at the lowest level ________.

A. when it kills few cells             B. if it damages few cells

C. though the damaged cells can repair themselves

D. unless the damaged cells can reproduce themselves

Radiation can hurt us in the way that it can _____.

A. kill large numbers of cells in main organs so as to cause death immediately

B. damage cells which may grow into cancer years later

C. affect the healthy growth of our younger generation

D. lead to all of the above results

Which of the following can be best inferred from the passage?

A. The importance of protection from radiation can be overemphasized (过分强调).

B. The mystery about radiation remains unsolved.

C. Cancer is mainly caused by radiation.

D. Radiation can hurt those who do not know about its danger.

Many of the people who appear most often and most gloriously in history books are great conquerors and generals and soldiers, whereas the people who really helped civilization forward are often never mentioned at all.
We do not know who first set a broken leg, or launched a seaworthy boat, or calculated the length of the year; but we know all about the killers and destroyers. People think a great deal of them, so much so that on all the highest pillars in the great cities of the world you will find the figure of a conqueror or a general or a soldier. And I think most people believe that the greatest countries are those that have beaten in battle the greatest number of other countries and ruled over them as conquerors.
It is just possible they are, but they are not the most civilized. Animals fight; so do savages; hence to be good at fighting is to be good in the way in which an animal or a savage(野人) is good, but it is not to be civilized. Even being good at getting other people to fight for you and telling them how to do it most efficiently—this, after all, is what conquerors and generals have done—is not being civilized. People fight to settle quarrels. Fighting means killing, and civilized people ought to be able to find some way of setting their disputes other than by seeing which side can kill off the greater number of the other side, and then saying that that side which has killed most has won. And not only has it won, but because it has won, it had been in the right. For that is what going to war means; it means saying that might(权利) is right.
【小题1】The author thinks that the conquerors and generals and soldiers ________.

A.only appear glorious in history books
B.are greater than any other people
C.are not as great as described in history books
D.do not really help civilization forward
【小题2】As it is indicated in the passage, the figure of a conqueror or a general or a soldier is put on the highest pillars in the great cities of the world mainly because ________.
A.people respect them very much
B.they fought bravely to protect their cities
C.people think they fought too brutally(野蛮地)
D.they conquered many cities and countries
【小题3】What is the writer’s attitude towards the countries that ruled over a large number of other countries ?
A.Positive.B.Critical.C.Ironic.D.Respectful.
【小题4】The author says that civilized people________.
A.should not have any quarrels to settle
B.should not fight when there are no quarrels to settle
C.should settle their quarrels without fighting
D.should settle their quarrels by killing the other side

For many years, artists have flocked to Paris, France, to paint or to learn to paint. Perhaps artists first went there because of the city′s beauty. They went to paint pictures of the broad, tree-lined streets, the great churches, and the graceful river bridges.

The artists felt comfortable in Paris because the people of the city had always enjoyed art. Paris had great art museums, filled with famous paintings and statues(雕像)from many countries. And the people of Paris had always welcomed new ideas. In this city, artists felt free to experiment with new ways of painting.

As soon as famous artists painted in Paris, students came to learn from them. People came to buy paintings. People called  art dealers set up galleries where paintings were bought and sold. Others kept shops that sold artists′ paints and supplies.

Students and artists who were not yet famous could live in Paris for very little money. They learned by studying great art in the museums, and they learned from one another. They held art fairs, hanging their paintings outdoors along the streets.

Today, New York City and Florence, Italy, are also famous art centers. But the world’s main art exhibits are still held in Paris. Important judges of art live there. Most of the new ways of painting that have started in the last hundred years began in Paris. So artists and art dealers still go to Paris because it is the world′s leading art center.

1.In Pairs artists can make progress in art by doing lots of things except .

A.painting the beautiful scenes of Pairs.

B.visiting museums, churches and fairs.

C.trying out their new ideas in the way of painting.

D.buying or selling paintings in the fair.

2.The story does not say so, but it makes you think that.

A.Paris is famous for its artists’ paints and supplies

B.there is more than one way to paint

C.art fairs are held in galleries

D.Florence is the center of world art exhibits

3.Which of the following statement is not a reason why so many artists prefer to stay in Pairs?

A.Pairs is a beautiful city

B.The French are willing to accept any new things.

C.All the museums are free of charge in Pairs.

D.Artists can make an easier life in Pairs.

4.On the whole, this story is about.

A.the world′s most famous art center

B.how to buy a painting in Paris

C.the famous art centers of New York and Florence

D.where to set up galleries

 

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