If the weather permits, the work on time.

    The way we cook is important. In many countries, the two choices are (nature) gas or electric ­powered stoves.

    The World Health Organization warns that millions of people (suffer) from indoor air pollution at present time, which results from the use of (danger) fuels and cook­ stoves in the home.

    WHO officials say nearly three billion people are (able) to use clean fuels and technologies for cooking, heating and lighting. As a result, more than seven million people die from exposure to indoor or outdoor air pollution each year. Most of the deaths are in (develop) countries, such as India, China and Latin American countries.

    WHO officials say opening a window or door (let) out the harmful air will not correct the situation. will only pollute the outdoors.

    Nigel Bruce,  is a professor of Public Health at the University of Liverpool, says researchers are developing good cook­stoves and other equipment to burn fuels  a more efficient way.

    But, this is just a start. It is urging developing countries to use (clean) fuels and increase access to cleaner and more modern cooking and heating appliances (用具).

    Television is everywhere around us. Yet it is great for learning English. The pictures make it easier to understand than radio and because you can see who's talking, and get a better idea of what people mean. Just watch their ＂body language＂! Watch programs that you find enjoyable and entertaining.

    Here's the English-at-home.com guide to learning as much as possible while watching English television:

     Learning English should be fun — not something that you have to force yourself to do. If you have a passion for football, watch matches or the sports news.

    Keep a notebook near to your television.  This is especially useful. You can look for programs with subtitles in your own language.

    Try to watch English television regularly. Even if you can only watch 15 minutes a day, you'll be amazed how much you learn.

    Don't worry if you don't understand everything. English television is normally aimed at native English speakers.  If the programs that you're watching are full of unknown words, just concentrate on understanding the general meaning.

    Keep a note of television programs and presenters that you find easy to understand and try to watch them regularly.  Soon you will impress your friends with your English skills.

A. Don't watch the programs too easy for you.

B. Programs often include many difficult words.

C. Better watch programs that you find interesting.

D. English learning has little to do with watching TV.

E. Whatever you watch will help you improve your English.

F. Doing this will increase your confidence in learning English.

G. You can take down any new words or expressions that you hear.