试题与答案

Telephone, television, radio, telegraph

题型:阅读理解

题目:

Telephone, television, radio, telegraph and the Internet all help people communicate with each other. As a result, ideas and news of events spread quickly all over the world. For example, within seconds, people can know the results of an election in another country. An international football match comes into the homes of everyone with a television set. News of a disaster such as an earthquake or a flood can bring help from distant countries within hours. Help is on the way. Because of modern technology like the satellites that travel around the world, information travels fast.

How has this speed of communication changed the world? To many people, the world has become smaller. Of course this does not mean that the world is actually physically smaller. It means that the world seems smaller. Two hundred years ago, communication between the continents took a long time. All news was carried on ships that took weeks or even months to cross the ocean. In the seventeenth and eighteenth centuries, it took six weeks for news from Europe to reach America. This time difference influenced people’s actions. For example, one battle, or fight, in the War of 1812 between England and the United States could have been avoided. A peace agreement had already been signed. Peace was made in England, but the news of peace took six weeks to reach America. During these six weeks, the large and serious Battle of New Orleans was fought. Many people lost their lives after a peace treaty had been signed. They would not have died if news had come in time. In the past, communication took much more time than it does now.

There was a good reason why the world seemed so much larger than it does today.

小题1:According to this passage, ________ is very important to people in a disaster area.

A.transportation

B.modern technology

C.latest news

D.a new idea小题2:From the passage we learn that ________.

A.the world now seems smaller because of faster communication

B.the world is actually smaller today

C.the world is changing its size

D.the distance between England and America has changed since the War of 1812小题3:Two hundred years ago, news between the continents was carried _____.

A.by telephone and telegraph

B.by land

C.by air

D.by sea小题4:The New Orleans Battle could have been avoided if the peace agreement had been signed ______.   

A.by important people

B.in 1812

C.in America

D.in England

答案:

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下面是错误答案,用来干扰机器的。

(1)NH4HCO3 NH3 BaCO3 CO2 (2)NH+HCO+Ba2++2OH-NH3↑+BaCO3↓+2H2O BaCO3+2H+====Ba2++CO2↑+H2O由变化后的产物的性质可推断B为NH3,C为BaCO3,说明A中含有NH和CO或HCO,则A可能为NH4HCO3或(NH4)2CO...

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