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Unit 3 the problems of power generation

The shift from fossil fuels – coal, oil, and natural gas – to other energy sources, such as wind and solar power, will be one of the milestones of the 21st century. For all practical purposes, with increasing use of automobiles worldwide, we could run out usable petroleum in this century. To avoid serious economic and social problems due to oil shortages, we need to find alternatives before we reach that point. The need is great, and the time to act is now.

Lead-in

Discuss the questions.

  1. What forms of energy do you know?

  2. What ways of generating energy are used in your region? Are there any problems with them?

  3. What is the most dangerous way of producing energy in your opinion? Why?

  4. What is the safest way of producing energy in your opinion? Prove it.

Discuss the following quotations about ecological problems. Say how they are related to the theme of the unit.

Modern society will find no solution to the ecological problem unless it takes a serious look at its lifestyles.

Pope John Paul II (1920-2005)

Your grandchildren will likely find it incredible - or even sinful - that you burned up a gallon of gasoline to fetch a pack of cigarettes! 

Paul MacCready, Jr.

Сomment upon the cartoons. How they are related to the topic of the unit.

Terms and vocabulary

Combustion

горение

Trace elements

микроэлементы

Retain

удерживаться, сохраняться

Residue

остаток

Fly ash

зольная пыль

Dispose

удалять, устранять

Elevate

повышать, возрастать

Effluent

вытекающий, сточный

Inundate

затоплять, наводнять

Per capita

на душу населения

Notoriety

дурная слава

Acid rain

кислотный дождь

  1. A) Pay attention to the pronunciation of the following words.

Combustion [kəm′ bΛst∫(ə)n] Exposure [ıks′pəuʒə]

Notoriety [nəutə′raıətı] Residue [′rezıdju:]

b) Read the names of chemical elements, remember the pronunciation.

Arsenic [a:′senık] Antimony [′æntımənı]

Plutonium [plu:′təunjəm] Mercury [′mə:kjurı]

Americium [əٰmə:∫ıəm] Thallium [′θælıəm]

Caesium [′si:zıəm] Methylated [meθı′leıtıd]

Iodine [′aıəudi:n]

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