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[单选题]

Everyone knows that water ______ oxygen and hydrogen.

A.is consisted of

B.is made from

C.is composed of

D.consists in

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更多“Everyone knows that water ____…”相关的问题

第1题

Everyone knows where the office is, but who is the director？（)

A.Dr. Anderson

B.Everyone does

C.On the next floor

D.Yes, they do

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第2题

Crime is a very serious problem in Britain. One sort of crime which particularly worri

es people is juvenile delinquency—that is, crimes committed by young people. For some years juvenile delinquency had been increasing. There are two main sorts of juvenile crimes: stealing and violence. Most people do not understand why young people commit these crimes. There are, I think, a large number of different reasons.

These crimes are not usually committed by people who are poor or in need. Young people often dislike and hate the adult world. They will do things to show that they are rebels. Also in Britain today it is easier for young people to commit crimes because they have more freedom to go where they like and more money to do what they like.

There are two other possible causes which are worth mentioning. More and more people in Britain live in large towns. In a large town no one knows who anyone else is or where they live. But in the village I come from crimes are rare because everyone knows everyone else.

Although it is difficult to explain, I think the last cause is very important. Perhaps there is something with our society which encourages violence and crime. It is a fact that all the time children are exposed to films and reports about crime and violence. Many people do not agree that this influences the young people, but I think that young people are very much influenced by the society they grow in. I feel that the fault may be as much with our whole society as with these young people.

6. From the passage we know that many British people are confused about ().

A. the cause of juvenile crimes

B. the rise of the crime rate

C. the problem of crimes in their country

D. the various kinds of juvenile delinquency

7. One reason why young people in large cities are more likely to commit crimes is that ().

A. nobody knows anything about others

B. they are free to move

C. they live a better life

D. they need more money

8. According to the passage, which groups of the following young people are LEAST likely to commit crimes？

A. Those living in big cities

B. Those who are in need of help

C. Those who are very poor

D. Those living in the countryside

9. Unlike many others, the author holds that one important cause for juvenile delinquency is that().

A. young people nowadays do not like adult world

B. young people in Britain today are freer than before

C. too many young people have come to live in big cities

D. young people are influenced by crime and violence in films and newspapers

10.According to the passage, which is to blame for juvenile crimes, apart from the young people themselves？

A. The adult world

B. Their parents

C. The development of the cities

D. The society

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第3题

Escaping a fire is a serious matter. Knowing what to do before a fire breaks out can save

a life. For example, people should know the safety measures to take before opening a hall door during a fire. Also, make sure everyone knows how to unlock doors that may be in the escape path. At times, a key is needed to unlock a door from the inside. So, keep the key in the lock, or, you can put the key on a key ring and put it where it can be found easily.

If you live in an apartment, know the ways you can use to get out. Show everyone in the family these routes. Stress the importance of using stairways or fire escapes, not elevators.

From most homes and the lower floors of apartment buildings, escape through windows is possible. Learn the best way of leaving by a window with the least chance of serious injury.

In a home fire, windows are often the only means of escape. The second floor window sill is usually not more than 13 feet from the ground. An average person, hanging by the fingertips, will have a drop of about six to the ground. Of course, it is after to jump a short way than to stay in a burning building. Rolling away from the building when you land.

Windows are also useful when you are waiting for help. Often you'll be able to stay in the room for several minutes if you keep the door closed and the windows open. Keep your head low in the window to be sure you get fresh air rather than smoke that may have leaked into the room.

On a second or third floor, the best windows for escape are those which open onto a roof or balcony. From the roof or balcony, a person can either drop to the ground or await rescuer. Dropping onto cement or pavement might end in injury. Bushes, soft earth, and grass can help to break a fall. A rope ladder should be considered when the drop is too great.

In a town where the fire department acts quickly, it may be best to wait for rescuer. Close the doors and wait by an open window for help. Shout for help. Be sure to close the door before opening a window. Otherwise, smoke and fire may be drawn into the room by the draft.

From most homes you can escape a fire through the ______.

A．attic

B．garage

C．windows

D．balcony

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第4题

The inventor of spectacles probably lived in the town of Paris, Italy, around 1286, a

nd was almost certainly a craftsman working in glass. But nobody knows his name. We only know this much about him because Friar Giordane preached a sermon one Wednesday morning in February 1306 at a church in Florence. "It’s not yet 20 years since there was found the art of making eye-glasses which make for good vision," said the Friar."One of the best arts and most necessary that the world has. So short a time is it since there was invented a new art that never existed. I have seen the man who first invented and created it, and I have talked to him." We know what Friar Giordane said because admirers copied his sermons down as he gave them. The inventor of spectacles apparently kept the method of making them to himself. Perhaps he thought this was the best way of getting money from his invention. But the idea soon got around. As early as 1300, craftsmen in Venice,the centre of Europe’s glass industry, were making the new "disks for the eyes".Spectacles at first were only shaped for far-sighted people. Concave lenses, for short-sighted people, were not developed until the late 15th century. Spectacles allowed people to go on reading and studying long after bad eyesight would normally have forced them to give up.They were like a new pair of eyes. The inventor of such a valuable thing should be honored, everyone thought. But for centuries no one had any idea who the inventor really was. So all kinds of candidates were put forward: Dutch, English, German, Italians from rival cities. A fake memorial was erected last century in a church in Florence to honor a man as the true inventor of spectacles-but he never even existed.

The first spectalces were made for ()

A、any one who had an eye trouble

B、the far-sighted

C、the short-sighted

D、both the far-sighted and the short-sighted

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第5题

—Who knows the way to the airport？—_____of them knows the way to the airport.

A.All

B.Both

C.Neither

D.Every