题目内容

The next generation of telescopes will reveal(显露;揭示)new parts of our universe that will seem surprising, just as the moon’s craters(坑)     when observed 400 years ago.

       A.could seem                 B.might seem 

      C.should have seemed      D.must have seemed

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Sleep is something we all do. But some people need to sleep more than others. Babies sleep most of the time. Children in school sleep about ten to twelve hours a night. Most grown-ups sleep only seven or eight hours.  

All parts of our bodies have to rest after they work. Our arms need a rest after we lift heavy things. When we run fast, our legs work hard. They get tired. We have to rest them. Our brains work hard, too.      We can sit quite still and rest our arms and legs. But our brains aren’t resting. They go right on thinking as long as we are awake.

Our brains slow down a bit when we sleep and dream.     Instead of thinking wide-awake thought, our brains make up dreams. Some dreams are very pleasing. Some are not. Most of the time we forget them when we wake up.

Scientists have tried to find out whet would happen if people were not allowed to sleep. They asked some people not to go to bed. The people stayed up all night and all the next day. They stayed up the next night, too and the day after. They played games. But they made mistakes. They forgot things.     The people grew rude and mean. They became angry with their friends. Finally they were too tired to stand up. The moment they sat down, they fell asleep.

Scientists found that if people are not allowed to sleep, they act in an unusual way.

     But we do know that we need it to stay well.

So tonight have a good sleep. Lie down under the covers. Shut your eyes. Let your thought travel about. Soon you’ll stop thinking. You’ll be asleep.

A. But even as we sleep our brains are doing some work.

B. It was hard for their tired brains to work..

C. When we are awake, they help us pay attention to the world around us.

D. No one knows quite surely why sleep is so good for us.

E. Good sleep helps to improve one’s memory.

F. But babies, children and grown-ups--- all of us need to have our sleep.

G. Our brains will not stop to have a rest, even one minute.

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Our Fears Can Change the Reality of the Situation

? At times, our worries and anxieties can defeat us. In addition, our worries can change our understanding of what is reality and what is not. Here is a brief list of techniques that you can use to help gain a better viewpoint on things during the anxious moments.

? __1.__ A person should take a deep breath and try to find something to do for a few minutes to get their mind off the problem. A person could get some fresh air, listen to some music, or do an activity that will give them a fresh perspective on things.

? Remember that our fearful thoughts are made to seem worse and can make the problem worse. __2.___When unexpectedly having thoughts that make you fearful or anxious, challenge these thoughts by asking yourself positive questions that will maintain objectivity and common sense.

? Be smart in how you deal with fears and anxieties. Do not try to deal with everything all at once. When facing a current or upcoming task that makes you anxious, break the task into small ones. __3.__

? Remember that all the worrying in the world will not change anything. Most of what you worry about never comes true.__ 4.___ Then you should leave everything else in the hands of God.

? It is not easy to deal with all the fears and worries. When your fears and anxieties have the best of you, try to calm down and then get the facts of the situation. The key is to take it slow. All you can do is do your best each day, hope for the best, and when something does happen, take it easy.__ 5.___

A. Take it one step at a time and things will work out well at last.

B. When feeling anxious, stop what you are doing and try to do something relaxing.

C. This will give you the confidence to manage your anxiety.

D. Instead of worrying about something that probably won’t happen, concentrate on what you are able to do.

E. The next time you fell depressed, review your list and think about the good things that you have in your life.

F. A good way to manage your worry is to challenge your negative thinking with positive statements and realistic thinking.

G. Completing these smaller tasks once at a time will make the stress more manageable and increase your chances of success.

 

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  1  We’ve worked to make their streets and their schools safer, to give them something positive to do after school and before their parents get home. We’ve worked to teach our children that drugs are dangerous, illegal and wrong.

Today, I want to talk to you about the historic opportunity we now have to protect our nation’s children from an even more deadly threat.  2 Smoking kills more people every day than AIDS, alcohol, car accidents, murders, drugs and fires combined. Nearly 90% of those smokers lit their first cigarette before they turned 18. consider this: 3,000 children start to smoke every day illegally, and 1,000 of them will die sooner because of it.   3  For more than five years we’ve worked to stop our children from smoking before they begin to try, starting a nationwide campaign to educate them about the dangers of smoking to reduce their access to tobacco products, and to restrict tobacco companies from advertising to young people.   4  That means if we act now, we have it in our power to stop three million children from smoking and save a million lives as a result. So this is an emergency that needs quick action of all of you.   5 .

A.Since I took office, I’ve done much to protect our children from harm.

B.This is a national tragedy(悲剧)that every American should help to prevent.

C.The quicker action we take, the fewer teen smokers there will be.

D.We have to educate them about the dangers of smoking.

E.It is smoking that is more terrible than drugs.

F.Compared with other diseases, drugs kill more people every day.

G.If we do these, we’ll cut teen smoking by almost half over the next five years.

 

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The First Americans

There was a time long ago when a land bridge connected Asia and North America.The first settlers in North America crossed this land bridge from what is now Siberia to Alaska.The people who made this initial crossing were probably following the animals they used for food.

Finally, the oceans rose and the land bridge between the continents disappeared.The settlers, who I shall call the "First Americans" , could not return to their homeland.  1  

For the next few thousand years, the First Americans moved south and east throughout North and South America.They made the journey all the way from Alaska to the southern tip of South America, a distance of more than 10,000 miles.    2   

In the far north, above the Arctic Circle, the First Americans became hunters of the ocean.  3 __  In the summer, they gathered berries and other plants.In the winter, they stayed in lodges much of the time preparing for the next summer.It was a hard life, but they learned to survive in these terrible conditions.

Farther south, in what is now Arizona, Utah, Colorado, and New Mexico, the First Americans became cliff dwellers.They began by living in caves that already existed in the cliffs.  4  The dwellings they built in many ways resembled today's apartment buildings.

5    They built a system of dams and canals so they could store and use water almost any time of the year.They were so successful that they could raise fruits and vegetables that were not found naturally in the desert.

A.They also discovered foods like corn and potatoes.

B.Along the way, they established many different civilizations.

C.They discovered how to add to the caves by building structures of wood and stone.

D.People living near each other tended to share similar environments and customs.

E. They built boats of animal skins and hunted or fished for their food.

F. They would have to survive in the New World, they had discovered.

G. The First Americans of the Southwest learned to water the desert.

 

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