A.soar
B.sore
C.sour
第1题
The author attributes today's air pollution to_____.
A.the growth of civilization
B.man's carelessness
C.environmental imbalance
D.some mysterious cause
第2题
A.the growth of civilization
B.man' s carelessness
C.environmental imbalance
D.some mysterious cause
第3题
A.refers to
B.comes to
C.happens to
D.responds to
第4题
The author attributes today's air pollution to____.
A.the growth of civilization
B.man' s carelessness
C.environmental imbalance
D.some mysterious cause
第5题
Air pollution is the most serious kind of pollution because ______.
A.it's bad for all living things in the world
B.it makes much noise
C.it makes our rivers and lakes dirty
D.it makes us angry more easily
第6题
The author attributes today's air pollution to_____.
A.the growth of civilization
B.man' s carelessness
C.environmental imbalance
D.some mysterious cause
第7题
Air pollution can be as harmful to one\\\\\\\'s health___________
A.on the downwind side
B.during rush hours
C.in spring and autumn
D.to toxic air
E.between autumn and winter
F.as exposure to nuclear radiation
第8题
A.set about
B.work out
C.fill up
D.bring over
第9题
A.the growth of civilization
B.man's carelessness
C.environmental imbalance
D.some mysterious cause
第10题
A.Unsafe water.
B.Wood, animal waste.
C.Burning wood, coal or animal waste for fuel.
D.People's behavior.
第11题
27 Air pollution can be as harmful to one's health___________
28 Traveling on an underground train can reduce exposure___________
29 Pollution levels are lower__________
30 It's wise to stay away from heavy traffic____________
A on the downwind side
B during rush hours
C in spring and autumn
D to toxic air
E between autumn and winter
F as exposure to nuclear radiation
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