In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country from the gas fields below the North sea. Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry. At the moment, the supply is plentiful, but it will be running short by the end of the century, and it will run out during the 21st century unless new supplies are found. We could do without natural gas, as coal gas can be used as...
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In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country from the gas fields below the North sea. Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry. At the moment, the supply is plentiful, but it will be running short by the end of the century, and it will run out during the 21st century unless new supplies are found. We could do without natural gas, as coal gas can be used as a substitute, and there should be enough coal to last for several centuries. However, it is a form of energy which is not only cheap, but also highly efficient.
1. What is natural gas used for?
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2. Where does it come from?
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3. What is gas used chiefly as? When will it run out?
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4. What can be used as a substitute for natural gas?
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5. Is natural gas expensive or cheap?
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Ex1: Rewrite sentences.
1. He suggests going to the station by bus.
--> He suggests we...should go to the station by bus...
2. Gas is used for heating. It is piped all over the country.
--> Gas which...is piped all over the country is used for heating..
3. We don't have much money but we travel every year.
--> Although..we don't have much money, we travel every year...
4. If he gets good grades, he won't stay home.
--> Unless..he gets good grades, he will stay home. ..
5. Mike lives next door my house. He is a famous singer.
--> Mike who..is a famous singer lives next door my house..
Thanks