32.tip

3. The world itself is becoming much smaller by using modem traffic and modern communication means (通讯设备). Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest is pollution (污染). To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it. Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up（用完） or the river was dirty in one place, Man moved to another place. But this is no longer true. Man is now slowly polluting the whole world.Air pollution is still the most serious. It＇s bad for all living things in the world, but it is not the only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us angry more easily. Many countries are making rules (法规) to fight pollution. They stop people from burning coal (煤) in houses and factories in the city, and from putting dirty smoke into the air. | Pollution by SO2 is now the most dangerous kind of air pollution. It is caused (引起) by heavy traffic. It is sure that if there are fewer people driving, there will be less air pollution. The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must take care of the rise in population at the same time. Pollution comes in many ways. We can even hear it. Here "it" means ____.

2. The world itself is becoming much smaller by using modem traffic and modern communication means (通讯设备). Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest is pollution (污染). To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it. Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up（用完） or the river was dirty in one place, Man moved to another place. But this is no longer true. Man is now slowly polluting the whole world.Air pollution is still the most serious. It＇s bad for all living things in the world, but it is not the only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us angry more easily. Many countries are making rules (法规) to fight pollution. They stop people from burning coal (煤) in houses and factories in the city, and from putting dirty smoke into the air. | Pollution by SO2 is now the most dangerous kind of air pollution. It is caused (引起) by heavy traffic. It is sure that if there are fewer people driving, there will be less air pollution. The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must take care of the rise in population at the same time. Thousands of years ago, life was ____ it is today.

1. The world itself is becoming much smaller by using modem traffic and modern communication means (通讯设备). Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest is pollution (污染). To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it. Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up（用完） or the river was dirty in one place, Man moved to another place. But this is no longer true. Man is now slowly polluting the whole world.Air pollution is still the most serious. It＇s bad for all living things in the world, but it is not the only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us angry more easily. Many countries are making rules (法规) to fight pollution. They stop people from burning coal (煤) in houses and factories in the city, and from putting dirty smoke into the air. | Pollution by SO2 is now the most dangerous kind of air pollution. It is caused (引起) by heavy traffic. It is sure that if there are fewer people driving, there will be less air pollution. The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must take care of the rise in population at the same time. Our world is becoming much smaller ___.

5. We are all busy talking about and using the Internet (因特网), but how many of us know the history of the Internet? Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. 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 (系统) had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information（信息）could be sent through another part. In this way computer network system would keep on working all the time. At first the Internet was only used by the government (政府), but in the early 1970s, universities (大学), hospitals and banks (银行) were allowed (允许) to use it too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software (软件) that made "surfing" (浏览) the Internet more convenient (方便).Today it is easy to get on-line (上网) and it is said that millions of people use the Internet every day. Sending e-mail (电子邮件) is more and more popular among students. The Internet has now become one of the most important parts of people＇s life. Which of the following is true?

4. We are all busy talking about and using the Internet (因特网), but how many of us know the history of the Internet? Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. 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 (系统) had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information（信息）could be sent through another part. In this way computer network system would keep on working all the time. At first the Internet was only used by the government (政府), but in the early 1970s, universities (大学), hospitals and banks (银行) were allowed (允许) to use it too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software (软件) that made "surfing" (浏览) the Internet more convenient (方便).Today it is easy to get on-line (上网) and it is said that millions of people use the Internet every day. Sending e-mail (电子邮件) is more and more popular among students. The Internet has now become one of the most important parts of people＇s life. ______ made "surfing" the Internet more convenient.

3. We are all busy talking about and using the Internet (因特网), but how many of us know the history of the Internet? Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. 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 (系统) had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information（信息）could be sent through another part. In this way computer network system would keep on working all the time. At first the Internet was only used by the government (政府), but in the early 1970s, universities (大学), hospitals and banks (银行) were allowed (允许) to use it too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software (软件) that made "surfing" (浏览) the Internet more convenient (方便).Today it is easy to get on-line (上网) and it is said that millions of people use the Internet every day. Sending e-mail (电子邮件) is more and more popular among students. The Internet has now become one of the most important parts of people＇s life. At first the Internet was only used by ______.

2. We are all busy talking about and using the Internet (因特网), but how many of us know the history of the Internet? Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. 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 (系统) had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information（信息）could be sent through another part. In this way computer network system would keep on working all the time. At first the Internet was only used by the government (政府), but in the early 1970s, universities (大学), hospitals and banks (银行) were allowed (允许) to use it too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software (软件) that made "surfing" (浏览) the Internet more convenient (方便).Today it is easy to get on-line (上网) and it is said that millions of people use the Internet every day. Sending e-mail (电子邮件) is more and more popular among students. The Internet has now become one of the most important parts of people＇s life. A new network system was set up to ____.

1. We are all busy talking about and using the Internet (因特网), but how many of us know the history of the Internet? Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. 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 (系统) had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information（信息）could be sent through another part. In this way computer network system would keep on working all the time. At first the Internet was only used by the government (政府), but in the early 1970s, universities (大学), hospitals and banks (银行) were allowed (允许) to use it too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software (软件) that made "surfing" (浏览) the Internet more convenient (方便).Today it is easy to get on-line (上网) and it is said that millions of people use the Internet every day. Sending e-mail (电子邮件) is more and more popular among students. The Internet has now become one of the most important parts of people＇s life. The Internet has a history of more than ___ years.

5. “Cool” is a word with many meanings.Its old meaning is used to express （表达）a temperature that is a little bit cold.As the world has changed，the word has had many different meaning. “Cool” can be used to express feelings of interest in almost anything.When you see a famous car in the street，maybe you will say，“It’s cool.”You may think，“He’s so cool，”when you see your favorite footballer. We all maximize（扩大） the meaning of “cool”.You can use it instead of many words such as “new” or “surprising”.Here’s an interesting story we can use to show the way the word is used.A teacher asked her students to write about the waterfall（瀑布）they had visited.On one student’s paper was just the one sentence（句子），“It’s so cool.Maybe he thought it was the best way to show what he saw and felt.But the story also shows a scarcity（缺乏）of words.Without “cool”，some people have no words to show the same meaning.So it is quite important to keep some credibility（可信性）.Can you think of many other words that make your life as colorful as the word “cool”？ I can.And I think they are also very cool. In the passage，the writer suggests（暗示）that the word “cool”________．

4. “Cool” is a word with many meanings.Its old meaning is used to express （表达）a temperature that is a little bit cold.As the world has changed，the word has had many different meaning. “Cool” can be used to express feelings of interest in almost anything.When you see a famous car in the street，maybe you will say，“It’s cool.”You may think，“He’s so cool，”when you see your favorite footballer. We all maximize（扩大） the meaning of “cool”.You can use it instead of many words such as “new” or “surprising”.Here’s an interesting story we can use to show the way the word is used.A teacher asked her students to write about the waterfall（瀑布）they had visited.On one student’s paper was just the one sentence（句子），“It’s so cool.Maybe he thought it was the best way to show what he saw and felt.But the story also shows a scarcity（缺乏）of words.Without “cool”，some people have no words to show the same meaning.So it is quite important to keep some credibility（可信性）.Can you think of many other words that make your life as colorful as the word “cool”？ I can.And I think they are also very cool. The writer takes an example to show he is ________ the way the word is used.