第二册第八单元-E
A) T
B) F
Script: Anglers no longer visited the streams for all the fish had died.
正确答案： A
6.
A) T
B) F
Script: Witchcraft and enemy action had silenced the rebirth of new life in this stricken world.
正确答案： B
7.
A) T
B) F
Script: The most alarming of all man's assaults upon the environment is the contamination of air, earth, rivers, and sea with dangerous and even lethal materials.
正确答案： A
8.
A) T
B) F
Script: Such a barrage of poisons called "insecticides" is possible to lay down on the surface of the earth without making it unfit for all life.
正确答案： B
9.
A) T
B) F
Script: Chemicals sprayed on croplands lie short in the soil without entering into living organisms.
正确答案： B
10.
A) T
B) F
Script: One in six countries in the world face food shortages because of severe
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