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II. Read and translate the text: Environment Ecology is a science which studies the relationship between all forms of life in our planet with its environment. This word came from the Greek “oikos” which means “home”. The Earth is our home but much of this is dirty and dying. Man cuts down more and more trees to provide paper, wood, medicines, mineral fuel. But it isn’t only trees that are disappearing. Acid rains destroy animals, insects and flowers. The main reasons of environment problems are polluted air, polluted water, solid wastes and exhaust of natural resources. Polluted air is a topical question of our planet. We need clean air to breathe, pure water to drink, food that is safe to eat and housing to shelter us. Air becomes polluted in many ways. Cars, tracks, buses and airplanes are among the worst polluters. Air can be also polluted by smoke and gases from factories. Dirt, smoke and gases in the air are usually carried away by wind and air currents or settle over as a blanket of smoke. Unclean air causes different diseases. They usually affect older people. But everyone can fell uncomfortable and lack of energy when the air isn’t clean. Today factories use devices to reduce the smoke, dust or harmful gases. Special kinds of refined gasoline are efficient either. Water pollution is caused by dumping wastes into the lakes, rivers and other bodies of water. Harmful wastes get into the soil or drain off fields that have been sprayed with pesticides. Pesticides are often used to kill insects and weeds in cities or on farms. Polluted water spreads many diseases. Every day people throw away amazing amounts of garbage and trash that is picked up by garbage trucks. These machines take the garbage to the out-of-the way places. Sometimes the trash is burnt, causing the air pollution. But a more healthy way to get rid of solid wastes is to spread them over the land and pack them back down. After that a thick layer of earth can be put down over the garbage and trees and grass can be planted. The world’s energy comes from oil, gas, and coal. But these “fossil fuels” won’t last for ever. There is only enough oil and gas for next fifty years. Coal will last longer – perhaps three hundred years. And then? There are four solutions: wind energy, solar energy, wave energy (from the sea), geothermal energy (from “hot rocks” under the ground). They are clean and natural, but expensive. Today many scientists and world leaders realize that the Earth is in danger. It’s really very simple. Either we’ll stop killing or we’ll kill ourselves. We need a cleaner, healthier planet. Millions of ordinary people – both young and old - understand this too. And what do you do to solve environment problems? III. Answer the following questions:
V. Match the words:
VI. Join the following definitions with correct answers:
VIII. Read and translate. DON’T BUY DRINKS IN PLASTIC BOTTLES FACT: Americans use 2.5 mln plastic bottles every year. These bottles can’t be recycled and won’t ever degrade. WHAT TO DO: Only buy soda and other drinks in aluminum cans or glass bottles. Buy milk or juice in cartons. Then recycle them. USE PAPER NOT PLASTIC FACT: It takes a whole tree to make about 500 paper grocery bags. But plastic bags are worse because they can’t be recycled, and the plastic will never decompose. DON’T THROW OLD BATTERIES IN THE TRASH FACT: Americans throw out 2.5 bln pounds of batteries a year. Toxic chemicals in batteries can be released into the environment, especially if they are burned. WHAT TO DO: Save your old batteries and take them to a recycling centre. TURN OUT THE LIGHTS AND APPLIANCES WHEN YOU ARE NOT USING THEM FACT: The electric company burns coal to produce the energy that keeps your lights on. That burning coal gives off gases that cause the greenhouse effect and acid rain. WHAT TO DO: Turn off the lights when you live the room, and turn off the lights in the room that you really don’t need. In the daytime, sit closer to the window to read instead of turning on a light. Turn off the TV or the stereo when you aren’t watching or listening. IX. Decide what kind of weather is described in each situation. Make use of the following words: hurricane, thaw, flood, blustery, foggy, snowdrift, slippery, scorching, humid, drought.
X. Creative work Recall what the weather you had in this part of the country you live. Make notes of all changes from Monday through Sunday. Explain extraordinary weather conditions. Use prompts: dry and bright, mainly dry, sunny rays, overcast, showery rain, drizzly days, foggy mornings, gentle breeze, wet and windy, but improving, snowfall, paralyzing a whole country, mild, melt, stuffy air. XI. Fill in the blanks with appropriate prepositions.
XII. Issues for discussion Problem of global warming. Air and water pollution. Birds and animals, and plants protection. Ecological problems of our region. SOME CURIOUS FACTS Thunderstorms Do you know what thunder and lightning are? Lightning is a big spark of electricity that travels from the sky down to the earth. Thunder is the big noise you hear after you see lightning in the sky. Thunder and lightning occur during a thunderstorm. Thunderstorms occur the most often during the spring and summer. Have you ever heard the expression, “lightning never strikes the same place twice?” Well, it’s not exactly true. A man named Roy Sullivan was struck by lightning seven times in 25 years. Many people die the first time they are struck by lightning. More than 200 people are killed by lightning in the USA every year. Finding And Collecting Water The water in your body helps to regulate your temperature, and keep it working properly. Although you carry water with, you may need to add to your supply by collecting water from the environment. There are tips on how to do this below. Finding Water You can use birds and insects to lead you to water. Most grain-eating birds animals and flies are sings that water is near. Collecting Water Rainfall To catch the maximum amount of rainwater, lean a waterproof container under a tree. Extra water will run down the trunk and into the container. Ice or snow Thinly spread ice or snow on a sheet of plastic (preferably black, as this absorbs the heat). Arrange the plastic to catch the water as it melts. JUST FOR RECOGNITION Pollution Solutions Adapted from the “Pollution Solutions ”article by L. Prescott, which appeared in Ranger Rick magazine Air Care Worldwide, the stinky problem of pollution has grown. More and more factories, cars, and trucks add their bad breath to the air. But the battle against air pollution is also growing. Many U.S. cities still have dirty air. So most states are making tougher laws against air pollution. And scientists are looking for ways to make factories and cars run cleaner. Cleaner Rain? Chemicals called sulfates puff out of coal-burning factories around the world. When the sulfates mix with clouds, acid rain falls and harms lakes, rivers and plants - and the creatures that need them. Also, the wind blows the air around. So, sulfates from one place can fall as acid rain many miles away. The good news is that many countries are working hard to end acid rain. Scientists are figuring out ways to make coal burn more cleanly. And in many parts of North America, the amount of sulfates in the air has dropped. So less acid rain is falling! Dirty Water? Nearly half of the lakes in North America are polluted. Often, companies dump chemical wastes into water. But scientists are finding a solution to this problem, too. Some rivers have been made much cleaner. And there are big plans to clean up the Great Lakes, the Chesapeake Bay, the Mississippi River, and other bodies of water. Good Energy News When we burn coal and oil for energy, we cause pollution. But little by little we're getting more energy from the sun and the wind. This energy is clean and renewable (that means we'll never run out of it). Energy from the sun now helps heat and light more than 100,000 homes in the United States. More good news: many electric companies have discovered that saving energy is better than making more energy. So they can send experts to homes in the U.S. to look for energy "leaks"-places where energy is being wasted. Everyone needs to have his/her home checked for leaks. Poisons In Food Farmers often spray chemicals on crops to protect them against pests. These chemicals are called pesticides. Scientists have found that pesticides often end up in our food. Pesticides can cause health problems - especially for kids. But here's the good news: the U.S. government is helping farmers find ways to protect crops without using many pesticides. Cleaner Cars Cars are the world's biggest air polluters. But scientists are trying to invent cars that pollute less. Farmers in Illinois are trying a fuel in their tractors made from soybeans. And there are electric minivans being used in at least six U.S. cities. Trash In 1993, each person in the United States threw away about four pounds (1.8 kg) of trash daily. Put it all together and you'd fill 45,000 trash trucks every day! About 1/3 of this waste comes from packaging. But here's a bit of good news. Some companies have begun to use less packaging. And lot of U.S. cities have started recycling projects. In these ways we've begun making less trash. Everyone should look at what they throw away and try to throw away less. So, dear world, you may be covered with dirt and gasping for air. But many people are working hard to fix you, and many kids are rooting for you, too. By the time these kids have grown up, you may do your clean old self again! ATTENTION! Dear Students! Take care of your motherland! Don’t cut the wild flowers. They may all disappear. Plant one oak tree a year. From one oak a forest grows. It is very simple. Put one acorn (желудь) into the land. Never throw or break glass bottles. You damage the land. Take only what you need from the land. Give more to the land than what you take. Dmitry S. Krukov HEALTH AT THE DOCTOR’S I. Remember the following words and word combinations:
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