练习:
1 .Why are ants compared to ecosystem engineers?
A Because they build their own nests.
B Because they collect food.
C Because their activity affects the environment.
D Because they are predators.
2. As predators, ants
A prey on small as well as large animals.
B collect nutritious food from the soil
C collect food as decomposers.
D prey on species much higher up the food chain.
3. Dir Sanders study centered on how ants
A can manage to thrive in huge numbers.
B defend their resources and territory against other predators.
C attack those invading animals for survival.
D produce such a big impact on the environment.
4. What does paragraph 6 tell us?
A Ants bring about a negative influence to an area when their population is small.
B Ants bring about a positive influence to an area when their population is small.
C Ants predation counteracts the positive influence they may have on an area.
D At higher density, ants produce a positive influence on an area.
5. What still remains unclear about ants, according to the last paragraph?
【2015年职称英语考试《理工类》A级阅读理解范题精讲(7)】相关文章:
★ 2015年职称英语考试《理工类》A级阅读理解范题精讲(3)
最新
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01