完形填空。
Villagers are much healthier than people who live in towns. One reason for this is country air is fresher
than the air in smoky
1 . The villagers breathe fresh clean air all day in the fields, but the air the towns men
2 is always full of smoke and dust.
We cannot live without air. If we are stopped from breathing
3 for five minutes, we will die. Bad air
means bad health and certain kinds of
4 , which may kill us in the end,
5 they may not kill us at once.
We all
6 what unpleasant feelings we get if we stay a long time in a closed, crowded room. After a time,
we begin to feel very
7 . and can hardly keep our eyes open. The longer we stay, the worse we feel. How
nice it is when we get
8 into the fresh air outside!
We must keep our windows open, so that the
9 in our house is always fresh, and we should breathe as
much as we can in the open air. For people who breathe
10 air for a long time often get very ill and die of
lung diseases.
( )1. A. cities
( )2. A. eat
( )3. A. as
( )4. A. death
( )5. A. so
( )6. A. know
( )7. A. hot
( )8. A. up
( )9. A. air
( )10. A. dry |
B. fields
B. smell
B. even
B. illnesses
B. since
B. fear
B. sleepy
B. out
B. furniture
B. clean |
C. factories
C. breathe
C. still
C. accidents
C. though
C. expect
C. lonely
C. down
C. environment
C. bad |