We are all busy talking about and using the Internet (互联网), but how many of us know the h____1___ of the Internet?

　　Many people are surprised when they find that the I___2_ was set up in the 1960s. At that time, computers were large and e__3___ . Computer networks (网络) didn't work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good e__4___ to be used by many different computers. If part of the network was not working, information could be sent through a__5_ part. In this way computer network system would keep on w___6___ all the time.

　　At f_7_ the Internet was only used by the government, but, in the early 1970s, universities, hospitals and banks were allowed to use it too. H_8__, computers were still very expensive and the Internet was d__9__ to use. By the start of the 1990s, c__10_ became cheaper and easier to use. Scientists had also developed software that made 'surfing' (浏览) the Internet more convenient.

Today it is easy to get on-line (上网) and it is said that m__11__ of people use the Internet everyday. Sending e-mail is more and more p__12__ among students.

The Internet has now become one of the most important parts of people's life.

 

When we look at the moon through a telescope(望远镜), we can see lines and circles(圆形物). People used to(过去常常) think that this was the moon’s face and that there was a man in the moon! This is not true. There is no man in the moon.
　　What do we know about the moon? First of all, the moon is much smaller than the earth. Days and nights on the moon are very long. One day on the moon is as long as two weeks on the earth. One night is also as long as two weeks on the earth. In the daytime the moon is very hot and at night is very cold.
【小题1】On the moon ____________.

A．there is a man	B．there is a woman
C．there are a lot of people	D．there is no man

【小题2】Now we know _____________________.
　　   

A．some facts about the moon

B．nothing about the moon

C．little about the moon

D．few facts about the moon

【小题3】Which of the following is true?

A．The moon is bigger than the earth.

B．The earth is much bigger than the moon.

C．The moon is as big as the earth.

D．The earth isn’t as big as the moon.

【小题4】 One day on the moon is as long as ______________.
　　   

A．seven days on the earth

B．fourteen days on the earth.

C．240 hours on the earth

D．two years on the earth

【小题5】The moon is very hot _____________.

A．all the time	B．during the night
C．in the daytime	D．at night and in the daytime

Try to guess its meaning when you meet a new word. Don't _____________ your dictionary all the time.

　　A. work on　　　　　　B. try on　　　　　　C. keep on　　　 D. depend on

 

 

Try to guess its meaning when you meet a new word. Don't _____________ your dictionary all the time.

　　A. work on　　　　　　B. try on　　　　　　C. keep on　　　 D. depend on

 

 

We live on the earth. We use the sea around us. What do we take from the ocean? And what do we give to it?

We take fishes from the ocean—millions of kilograms of fish, every year, to feed millions of people.  1.   We take minerals(矿物) from the ocean. We can get salt by evaporating(蒸发) seawater.  2.    Many other minerals, such as gold, can be also got from the sea, but not by simple evaporation. 3.    Seaweed(海草) becomes food of many kinds— even candy, and ice cream—as well as medicine. Believe it or not, fresh water is another gift from the sea. We can’t drink ocean water.   4.   But ocean water becomes fresh water when the salts are removed. In the future, we will find ourselves depending more and more on fresh water from the sea.

The sea gives us food, fertilizer, minerals, water and other gifts. What do we give the sea? We pollute the ocean all the time. 　 5.　 Throwing waste into the ocean is killing off sea life. Yet as the world population grows, we may need the sea and its gifts more than ever.

We are finally learning that if we destroy our sea, we might also destroy ourselves. Hopefully, it is not too late.

 根据以上内容，从下列五个选项中选择适当的句子还原到短文中，使短文完整与正确。将其标号在答题卡上涂黑。（每小题2分，共10分）

A. Other gifts from the sea , such as seaweed, can be also got from the sea. B. Huge as it is, the ocean can’t hold all that we pour into it. C. Along with salt, other minerals are left after evaporation. D. We even use their bones(骨头) for fertilizer(化肥). E. Some of its contents(所含物) may cause illness.