Reading Comprehension
试题详情
文章：
| Line | The argument for “monetizing”—or putting a | |
| monetary value on—ecosystem functions may be | ||
| stated thus: Concern about the depletion of natural | ||
| resources is widespread, but this concern, in the | ||
| (5) | absence of an economic argument for conservation, | |
| has not translated into significant conservational | ||
| progress. Some critics blame this impasse on | ||
| environmentalists, whom they believe fail to address | ||
| the economic issues of environmental degradation. | ||
| (10) | Conservation can appear unprofitable when compared | |
| with the economic returns derived from converting | ||
| natural assets (pristine coastlines, for example) into | ||
| explicitly commercial ones (such as resort hotels). | ||
| But according to David Pearce, that illusion stems | ||
| (15) | from the fact that “services” provided by ecological | |
| systems are not traded on the commodities market, | ||
| and thus have no readily quantifiable value. To | ||
| remedy this, says Pearce, one has to show that all | ||
| ecosystems have economic value—indeed, that all | ||
| (20) | ecological services are economic services. Tourists | |
| visiting wildlife preserves, for example, create | ||
| jobs and generate income for national economies; | ||
| undisturbed forests and wetlands regulate water | ||
| runoff and act as water-purifying systems, saving | ||
| (25) | millions of dollars worth of damage to property | |
| and to marine ecosystems. In Gretchen Daily’s | ||
| view, monetization, while unpopular with many | ||
| environmentalists, reflects the dominant role that | ||
| economic considerations play in human behavior, | ||
| (30) | and the expression of economic value in a common | |
| currency helps inform environmental decision-making | ||
| processes. |
题目：
Which of the following most clearly represents an example of an “ecological service” as that term is used in line 20?
选项:
A、Being that she was secretary of labor, Frances Perkins' considerable influence with Franklin D. Roosevelt was used preventing
B、As secretary of labor, Frances Perkins' considerable influence with Franklin D. Roosevelt was used to prevent
C、Being secretary of labor, Frances Perkins' considerable influence with Franklin D. Roosevelt was used preventing
D、As secretary of labor, Frances Perkins used her considerable influence with Franklin D. Roosevelt to prevent
E、Secretary of labor, Frances Perkins' considerable influence was used with Franklin D. Roosevelt preventing
答案:
C
