Weicaiying

Facts and Figures:

People will inhale about 4 million cubic air in their life.

Due to our more tightly sealed homes and workplaces, the concentration(浓度 ) of pollutants indoors may be dozens of times higher than that of outdoors.

People spend about 70%-80% of their time indoors.

Among the pollutants indoors, about 20 may lead to cancer.

Indoor air pollution has been listed as one of the ten top health threats to human beings.

About 35.7% of the respiratory problems are caused by indoor air pollution.

Skim the passage and work out the main idea of each paragraph:

Para. :

Para. :

Para. :

Para. :

Importance of awareness of possible indoor air quality problems in schools.

Sources of poor indoor air quality.

Dangers of poor indoor air quality.

Some measures to deal with the problem.

Why is the awareness of IAQ problems important for both teachers and students?

--- more occupants per square meter in a school

--- growing student population

alike adj. & adv.

1. An awareness of possible indoor air quality problems is important for teachers and students alike.

2. The Vanbrugh sisters look remarkably alike in appearance.

3. The children in this school are all treated alike.

(adv.)

(adj.)

(adv.)

Sources of most indoor air pollution:

A. _______________

B. _______________

C. _________________

from manufactured wood products, pesticides, etc.

from laboratories and toilets

through windowsand openings

harmful elements

other pollutants

outdoor polluted air

For example … Other pollutants may also … Meanwhile … can also …

Transitional words （过渡词）

first of all; to start with;besides; in addition; in the first/second/third place; what’s more; furthermore; moreover; last but not least…

Fill in the blanks with proper transitional words:

As is mentioned in the passage, quite a few factors can lead to health hazards. ___________, poor ventilation may cause people to suffer from headaches, tiredness and respiratory problems. __________, photocopying machines can produce a toxic chemical, which is bad for people’s health. ____________, water tanks not being regularly tested is also a hidden danger. _________, noise and poor lighting are also among the factors to cause health hazards.

First of all

Last but not least

What’s more

In addition

What are the sources of air pollution in our classroom?

dust produced by chalk

dirty smelly clothes, shoes …

recycled air

paints on the board/ furniture

viruses carried by sick ones

What are the dangers of poor IAQ?

---causing serious respiratory problems

Some measures to deal with the problem:

increasing ventilation rates

banning smoking

storing paints and pesticides in closed containers

using pollutant sources in periods of low or no occupancy

educating people about the problem

A. _______________________

B. _______________________C. __________________________________________

D. ________________________________________ _________________

E. __________________________________________

Suggest some ways to reduce the indoor air pollution in our classroom.

dust produced by chalk

dirty smelly clothes, shoes …

recycled air

paints on the board/furniture

viruses carried by sick ones

paying attention to personal hygiene

using dustless chalk

improve ventilation

choosing green products

building up our body

having some plants

Outline

Importance of awareness of possible IAQ problems in schools. (para.1)

a. Sources of poor IAQ. (para. 2)

b. Dangers of poor IAQ. (para. 3)

Some measures to deal with the problem. (para. 4)

I. Introduction

II. Body

III. Conclusion

Use one word to summarize what we have learned in this lesson and tell us why.

e.g. I’d like to use “awareness” to summarize what I have learned in this lesson because, of all the measures to take, to make people aware of the problem should be on top of the list. Only when people are fully aware of the problem will they take it seriously and take action to solve it.

Homework

Review the text and try to recite it.

Read a supplementary material and finish the exercise.