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An ecosystem is defined as an ecological community together with its environment, functioning as a unit. To be more【C1】______an
An ecosystem is defined as an ecological community together with its environment, functioning as a unit. To be more【C1】______an
admin
2013-12-04
63
问题
An ecosystem is defined as an ecological community together with its environment, functioning as a unit. To be more【C1】______an ecosystem is a complex set of relationships among the living resources, 【C2】______and residents of an area, composed of organisms that work together to remain healthy【C3】______energy is exchanged and system-level processes emerge. The ecosystem serves as the level of biological organization in which organisms【C4】______simultaneously with each other and with their environment. As such, ecosystems are a level above that of the ecological community but are at a level below the 【C5】______, which is essentially the largest of all possible ecosystems.
The thing about ecosystems is that they are 【C6】______ fragile and intensely complicated. If you influence the smallest variable, then it changes the 【C7】______This is why global warming is such a big issue, 【C8】______whether we created it or not. Ecosystems will change; however, if they change radically enough, our way of life will forever be affected. It is sad to think that future generations will not have the【C9】______of witnessing these little creatures as we have in our lifetime. You have to go to preservations to witness the wildlife that【C10】______be an everyday occurrence.
【C1】
选项
A、realistic
B、frank
C、honest
D、specific
答案
D
解析
文章的第一句是生态系统的粗略定义。第二句以后详细解释生态系统的组成、运行原理和各种关系。to be frank:坦率地说;to be honest:说句实话;to bemore specific:更明确地说。根据前后句的关系,to be more specific更合适。
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研究生英语学位课统考(GET)
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