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When people talk about air pollution, they are usually thinking about outdoor air   46  . 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 illnesses have   47   to do with polluted indoor air.

A lot of pollution comes from indoor activities   48   smoking and cooking. As most people  49   about 80%-90% of their time inside buildings, it is important to take indoor air pollution seriously, too.

Air pollution influences our health 50  . When the air is polluted, not only young children and old people  51   from it,  52   people with health problems suffer as well. Indoor air pollution can   53   people’s eyes, noses and throats. Air pollution, both indoor and outdoor, can also  54 lung cancer and heart disease! In the great London fog in 1952, 4, 000 people died in a few days  55   the pollution! It is said that half a million young children and women die each year in India because of indoor air pollution!

(   )46.A.pollution               B.pollute                       C.polluted

(   47.A.nothing                 B.everything                 C.something         

(   48.A.as well as              B.such as                            C.instead of          

(  )49.A.take                B.cost                          C.spend                

(   50.A.in many ways        B.in many things           C.in many houses  

(   51.A.bear                      B.stand                         C.suffer

(   )52.A.and                      B.but                            C.or                     

(   )53.A.hit                       B.hurt                          C.pollute               

(   )54.A.cause                   B.get                            C.give                         

(   )55.A.because of           B.thanks to                   C.because

46.A 47. C48.B 49.C50.A51.C52.B53.B 54.A55.A

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閱讀下面短文,并借助上下文和插圖補充所缺信息。每個空只能填寫一個形式正確。意義相符的單詞。

  Tom was a poor boy.He made a living by cleaning leather(皮革)  1   for others in the street.Tom was also a   2   boy.One day, a rich man   3   Miser appeared in front of Tom.

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We can not live a modern life without traveling. The fastest way of traveling is by air. With a plane

one can travel in one day to places which it took a month or more to get to a hundred years ago. 

Traveling by train is slower than by plane, but one can see the country he is traveling through. 

Modern trains have comfortable seats and dinning-cars. They make even the longest journey enjo

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Some people prefer to travel by sea when possible. There are large luxury liners or river boats

.They are not as fast as trains or planes, but traveling by sea is a very pleasant way to spend a holi

day.

Many people like to travel by car. They can make their own timetable. They can travel hundred

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Bob always took the newspaper to Grandpa White’s home last before heading for home. Grandpa White’s was at the end of the road. Bob liked Grandpa White. He often waited for him near the front gate with sweets or nice cakes. Besides, he often asked Bob about things he was doing—about what he was going to do for the summer and what he liked to do.  

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