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由于现代交通和现代通讯设备的应用世界变得越来越小，今日的生活比数百年前要方便得多，但也由之带来新的问题，其中之一便是污染．本文围绕带来的危害而展开议论，并呼吁要立法，以净化自然，保护环境，保护人类生存的家园－－地球．
The world itself is becoming much smaller by using modern 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, sell 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 or the river was dirty in a place, men moved to another place. But this is not longer true. Man is now slowly polluting the whole world.
Air pollution is still the most serious. It's bad to all living things in the world, but it is not only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us become angry more easily.
Many countries are making rules(法规) to fight pollution. They stop the people from burning coal(煤) in houses and factories in the city, and from blowing dirty smoke into the air.
The pollution of SO2 is now the most dangerous problem 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 keep careful of the rise in population at the same time.
1．Our world is becoming much smaller ________.
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A．because the earth is being polluted day and night
B．thanks to science developing
C．because of the rise in population
D．because the earth is blown away by the wind every year
2．Thousands of years ago, life was ________ it is today.
[ ]
3．Pollution comes in many ways. We can even hear it. Here “it” means ________.
[ ]
4．Air pollution is the most serious kind of pollution because ________.
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A．it's bad to all living things in the world
B．it makes much noise
C．it has made our rivers and lakes dirty
D．it makes us become angry more easily
5．Which of the following is not true?
[ ]
A．Many countries are making rules to fight pollution.
B．The pollution of the earth grows as fast as the world's population does.
C．From now on, maybe people try to go to work by bus or bike instead of car or motorbike. It is helpful to fight against the problem of SO2.
D．The problem of pollution is not so serious because there are not so many people.
查看习题详情和答案>>Because of the rain, the football match ________ ________ ________ ________ next week.（由于下雨，足球赛将推迟到下周）
查看习题详情和答案>>
1. 我们没有理由反对做作业。
We have __________ __________ doing homework.
2. 做事匆忙，就会出错。
You will __________ __________ if you do things in a hurry.
3. 让我们不要担心我们的问题，而是要面对挑战。
Let's not __________ __________ our problems. Let's face the challenges instead.
4. 我曾经花很多时间玩游戏。现在我发现对我的学习是不利的。
I __________ __________ a lot of time playing games. Now，I find it is bad for my study.
5. 使他惊奇的是，这个电话改变了他的一生。
__________ __________, this phone call changed his life.
6. 我班的学生们不想让老师失望。
The students in our class don't want to __________ our teachers __________.
7. 这本杂志属于Tom。
This magazine __________ __________ Tom.
8. 我喜欢柠檬胜过了桔子，因为我喜欢酸酸的味道。
I __________ lemons __________ oranges. Because I like the sour waste.
9. 别打扰他了，他已经筋疲力尽。
Don't bother him, he has __________ __________ his energy.
10. 要是你的哥哥没经你允许穿走你的衣服，你怎么做？
What would you do if your brother borrowed your clothes __________ __________.
He has problems with his eyes because of __________________.
2. 我认为攀岩和潜水一样令人激动。
I think that climbing the rock __________________ diving.
3. 我希望你能给我们一些建议。
I hope you can __________________.
4. 我将投票选梅因为她从不告诉别人我的秘密。
I'll vote for May because she never __________________.
5. 别紧张！我们一定会赢得决赛。
Don't __________________. We're sure to __________________.
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