Chapter Five More Language Input Indoor Air Quality Problems 华师大松江实验高级中学 沈勤 沈勤

Find out the topic sentence in each paragraph. Skimming:

Para 1: ___________________________ possible indoor air quality possible indoor air quality problems in school problems in school Para 2: of most indoor air Para 2: __________ of most indoor air pollution pollution Para 3: caused Para 3: ___________________ caused by poor indoor air quality by poor indoor air quality Para 4: to deal with Para 4: ______________ to deal with this problem this problem The heading for each paragraph The importance of being aware of Sources Respiratory problems Some measures

Match the headings and their paragraphs Para 1 Para 2 Para 3 Para4 Sources of indoor air pollution Respiratory problems caused by poor indoor air quality Harmful substances contained in the poor indoor air The importance of being aware of the possible indoor air quality problem in school Some measures to deal with this problem 修改部分

Detail Reading 1.According to the passage, who are the occupants in a school? 2.Why is the student population in many schools still growing? Teachers and students. Because of increasing urbanization.

Detail Reading 3. What does the word “urbanization” mean? Please find out the right definition of it. A. the process by which a child grows and develops. B. the process by which more countryside turns into towns and cities C. the process by which more factories appear

Where are these harmful substances from? Para 2 Other pollutants Vehicle exhausts Harmful elements Photocopiers, desks and chairs, cleaning products, pesticides, etc. Laboratories and toilets Outdoor air through windows and openings

Where are these harmful substances from?(Listening) Para 2 Other pollutants Vehicle exhausts Harmful elements _____________, desks and chairs, cleaning products, ___________, etc. ____________ and toilets __________ air through windows and openings photocopiers pesticides laboratories outdoor 修改部分

to gather or pile upto gather or pile up modern and latestmodern and latest a substance that pollutes the air, water or soila substance that pollutes the air, water or soil particular to give off or send out (esp. heat, light, smell, sound) no longer useful because of being old-fashioned waste gases that come out of a vehiclewaste gases that come out of a vehicle emit pollutant accumulate specific exhaust outdated v. n. v. adj. n. adj.

Find out the right meanings of the new words in the box and replace them. pollutants emit exhaust accumulate specific outdated Most indoor air pollution comes from the sources inside the school. For example, photocopiers, wood products, cleaning products and pesticides may send out harmful elements. Some particular places like labs and toilets may also pile up other substances which pollute air. Meanwhile, the waste gas from vehicles in the streets may come in through windows and other opening. And in some old schools, the risk of indoor air pollution may increase due to old-fashioned ventilation system. emit specific accumulate pollutants. exhausts outdated 修改部分

Who are affected more seriously by poor indoor air quality? And why? Younger students. Because their respiratory systems are still developing so they are likely to inhale more pollutants than adults.

Some measures to deal with this problem Increasing ventilation rates Banning smoking Storing paints and pesticides in closed container Using pollutants sources in period of low or no occupancy Educating people about this problem

Of all the measures, education is the most important one to deal with this problem. That means students as well as teachers should be aware of the dangers caused by poor indoor air quality and try to take proper measures to protect themselves from being harmed. A conclusion

Besides schools, are there any other places where we have indoor air quality problems?

Can you give me some suggestions on how to deal with indoor air pollution in my home?

The sentence patterns on giving suggestions : 1. I think you’d better …. 2. …is a good way. 3. It’s better to… 4. My suggestion is that … 5. The effective measure is to …

Indoor air pollution is a world wide topic, how to deal with it is also a world wide problem. Many serious diseases are caused by indoor air pollution. As a result, We mustn’t neglect the “invisible killer”. All we can do is to try our best to minimize indoor air pollution and know how to protect ourselves from being harmed. Do remember “Life should be treasured”. A conclusion

1.Write an outline of a composition “Indoor air pollution at home” by imitating the outline on page 99. homework You may refer to the following questions: 1.Do you have indoor air problems in you home? 2.What are the sources of indoor air pollution in your home? 3. What are the effective measures to deal with it?