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To be healthy, it is also very important to spend a lot of time in the open air. It is useful to go for a walk before going to bed, or to air the room.
I think it is very important to be fit and healthy, and it is necessary to take care of your health. Being fat, in fact, can cause real problems. It is harder for fat people to get a good job, or even to make friends. If you want to do well, you must be thin. That’s why I go in for sports on a regular basis. I have been doing aerobics for three years and I feel great. I am not enthusiastic about strict dieting, but I try to eat only low-fat food, and fruit and vegetables which are rich in vitamins.
Personally I believe that regularity in life promotes our health. Sleeping eight or nine hours, getting up early, regular meals, a healthy diet and going in for sports is really a good way to live.
18. The problems of ecology are very important now. Which problem is the most urgent, in your opinion? What can you and the people around you do to protect the planet?
Environmental problems have become exceptionally acute in the modern world, and environmental protection has become a vital necessity for all people.
Our planet is in serious danger. One of the most important environmental problems in the world today is the shortage of clean water. Industrial pollution has made many sources of water undrinkable. Rivers, lakes and even seas have become poisonous. Thousands of fish die every year as a result of the illegal dumping of waste in rivers by factories all over the world.
Lake Baikal is one of the worlds’ largest and most beautiful lakes. It contains a rich variety of fish and plants, including 1,300 rare species that do not exist anywhere else in the world. However, they are being killed by massive industrial waste, which some factories still pour into the lake every day. A few years ago people thought that the supply of clean water was unlimited. Now clean water is scarce, and we are beginning to respect this precious resource. We must protect the clean water that remains for the sake of our children and grandchildren.
Air pollution is another important problem. In hundreds of cities and towns the concentration of harmful substances in the air is over ten times the admissible level. Every day a huge number of plants and factories emit lots of harmful substances into the atmosphere of big cities. The great increase in the use of motor cars in the last quarter of the twentieth century has caused an increase in a new kind of air pollution. Pollution from factories and cars poison the air we breathe, and is the main reason for the greenhouse effect and acid rain.
Acid rain can damage life in lakes and rivers and destroy forests. The greenhouse effect may also have disastrous consequences for our planet. It is already affecting several areas of the world with unusual weather causing droughts or heavy storms. The world’s temperature is going up and the climate is changing. Cutting down on emissions from large combustion plants and exhaust fumes from vehicles would help solve the problem. I think we should try and use alternative energy, such as solar energy and wind energy, and design plants and cars that run on electricity, a much cleaner fuel than petrol.
One of the most alarming environmental problems is depletion of the ozone layer, which protects the Earth from the dangerous ultraviolet rays of the sun. Because of the ozone holes, the dangerous rays get through the atmosphere, causing skin cancer and other serious diseases. Many scientists think that these ozone holes are the result of air pollution.
Реферат опубликован: 13/08/2008