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Global warming is one of the major environmental problems we are facing today. Scientists think a further rise in the carbon dioxide levels will make this situation worse. The greenhouse effect causes the earth’s heat to be trapped in the atmosphere, which results in the increase in temperature. This, in turn, has an effect on various plants and animals. Global warming makes it difficult for some of them to survive.

Water pollution is caused when wastes are thrown into water. What’s more, many harmful chemicals are also put into water, which endangers people’s health and many wild animals die out.

The increasing population is causing a loss of natural resources. This is related to various human activities. For example, over-fishing has caused many kinds of fishes to die out. Forests are being cleared to meet the rising demand for paper, wood, even for land. Mining, the work of getting gold, coal etc out of the earth, has led to a further drop in mineral resources. If we used up all the resources, how could our children survive on this planet?

These are some of the environmental problems now. Only with an effort from each person, can we hope to save our planet from being destroyed.

             Title: Some Environmental Problems we are    1 

 

Environmental

Problem

Cause

Damage

Global    2  

Increasing carbon dioxide levels

Making it difficult for various plants and animals to survive

Water pollution

Throwing    3    into water; Adding harmful chemicals into water

Endangering humans’ health

Causing the    4   of wild animals

The loss of

Natural resources

Increasing population

Various human    5   , such as over-fishing, cutting down forests and mining

Endangering the next generation


ut I don't. An airport is usually far from the city. You have to get there early and wait for hours for the plane to take off and it's often late. You can't open the windows. You can't choose the food. Planes are fast, but it still takes hours to get out of the airport and into the city.

I like traveling by train I think trains are safe. Railway stations are usually in cities. When you are late for a train, you can catch another one. You can walk around in the train and open the windows.  You can see many interesting things on your way. I know it takes a little more time.

I also like cars. You can start your journey when you want to, and you don't need to get to a railway station or a bus stop. Also you can carry many things with you in a car. But sometimes there are too many cars on the roads.

(   ) 1. Does everyone like to travel by plane?

A. Yes, we do.       B. No, I don't know. C. Yes, he does.D. No, not everyone.

(   ) 2.Where is an airport according to the passage?

A. It's usually far from the city.                  B. It's usually in a big city.

C. It's usually near the city.                        D. It's usually around the city.

(   ) 3. Which of the following sentences is TRUE?

A. You can choose food on the plane.          B. You can open the windows on the plane.

C. You can open the windows on the train.   D. Trains are not safe.

(   ) 4. The writer doesn't like traveling by plane, does he?

A. Yes, it does.       B. Yes, he does.      C. No, it doesn't.    D. No, he doesn't.

(   ) 5. If you take a car, you don't need to __

A. get to a railway station                           B. get up early

C. carry many things                                 D. take money

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