Question

阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。 

be,but,pollute,spend,hurt,instead because,cost,outdoor,way,such,it

  When we talk about air pollution，we are usually thinking about 1      air pollution. But do you know there 2      also 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 something to do with 3      indoor air. 

   A lot of pollution comes from indoor activities 4      as smoking and cooking. As most people 5      about 80 - 90% of their time inside buildings,6       is important to take indoor air pollution seriously,too.

   Air pollution influences our health in many 7      When the air is polluted,not only young children and old people suffer from (遭受）it，8      people with good health suffer as well. Indoor air pollution can 9      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,4 000 people died in a few days in 1952  10      of the pollution!It is said that half a million young children and women die each year inIndiabecause of indoor air pollution!

1.        2.        3.__4.        5.       

6.        7.        8.        9.        10.       

Answer 1

 1. outdoor 2. is 3. polluted 4. such 5. spend

6. it 7. ways 8. but 9. hurt 10. because