1. 完形填空。阅读短文，从A、B、C三个选项中选出一个最佳选项。（共10小题，计10分）
When people talk about air pollution, they are usually thinking about outdoor air . But do you know that there is 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 the illnesses have to do with the polluted indoor air.
A lot of pollution comes from indoor activities smoking and cooking. As most people about 80%-90% of their time inside buildings, it is important to take indoor air pollution seriously, too.
Air pollution influences our health . When the air is polluted, not only young children and old people from it, people with health problems suffer as well. Indoor air pollution can people’s eyes, noses and throats. Air pollution, both indoor and outdoor, can also to lung cancer and heart disease! In the great London fog in 1952, 4, 000 people died in a few days the pollution! It is said that half a million young children and women die each year in India because of indoor air pollution!
【小题1】A.pollution B.pollute C.polluted
【小题2】A.anything B. everything C. something
【小题3】A.as well as B. such as C. instead of
【小题4】A. take B. cost C. spend
【小题5】A. in many ways B. in many things C. in many houses
【小题6】A.suffer B. bear C. stand
【小题7】A.and B. but C. or
【小题8】A.hit B. hurt C. pollute
【小题9】A.cause B. get C. lead
【小题10】A.because of B. thanks to C. Because