When people talk about air pollution, they are usually thinking about outdoor air 1 . But do you know that there is 2 air pollution inside homes, offices, hotels and other buildings? The air in your home can be 2 to 100 times more polluted than the air outdoors! In fact, some American doctors say that 50% of illnesses have 3 to do with polluted indoor air.
A lot of pollution comes from indoor activities 4 smoking and cooking. As most people 5 about 80-90% of their time inside buildings, it is important to take indoor air pollution seriously, too.
Air pollution influences our health 6 . When the air is polluted, not only young children and old people suffer from it, 7 people with health problems suffer as well. Indoor air pollution can 8 people's eyes, noses and throats. Air pollution, both indoor and outdoor, can also lead to lung cancer(肺癌)and heart disease! In the great London fog in 1952, 4,000 people died in a few days 9 the pollution! 10 is said that half a million young children and women die each year in India because of indoor air pollution!
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A.pollution |
B.sadness |
C.illness |
D.business |
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A.too |
B.none |
C.also |
D.neither |
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A.nothing |
B.everything |
C.something |
D.anything |
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A.as well as |
B.such as |
C.instead of |
D.for example |
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A.take |
B.cost |
C.give |
D.spend |
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A.in many ways |
B.in many things |
C.in many houses |
D.by the way |
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A.hit |
B.hurt |
C.polluted |
D.destroyed |
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A.because of |
B.thanks to |
C.related to |
D.or |
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A.This |
B.That |
C.What |
D.It |
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