[单项选择]

Our trouble lies in a simple confusion, one to which economists have been prone since the beginning of the Industrial Revolution. Growth and ecology operate by different rules. Economists tend to assume that every problem of scarcity can be solved by substitution, by replacing tuna with tilapia, without factoring in the long-term environmental implications of either. But whereas economies might expand, ecosystems do not. They change—pine gives way to oak, coyotes arrive in New England—and they reproduce themselves, but they do not increase in extent or abundance year after year. Most economists think of scarcity as a labor problem. Imagining that only energy and technology place limits on production. To harvest more wood, build a better chain saw; to pump more oil, drill more wells; to get more food, invent pest-resistant plants.
That logic thrived on new frontiers and more intensive production, and it held off the prophets of scarcity—from Thomas Robert
A. emphasize the differences between economic growth and scarcity
B. ignore the human creative and productive power
C. see ecology from an economic perspective
D. use different approaches to economy and ecology

[单项选择]

Our trouble lies in a simple confusion, one to which economists have been prone since the beginning of the Industrial Revolution. Growth and ecology operate by different rules. Economists tend to assume that every problem of scarcity can be solved by substitution, by replacing tuna with tilapia, without factoring in the long-term environmental implications of either. But whereas economies might expand, ecosystems do not. They change—pine gives way to oak, coyotes arrive in New England—and they reproduce themselves, but they do not increase in extent or abundance year after year. Most economists think of scarcity as a labor problem. Imagining that only energy and technology place limits on production. To harvest more wood, build a better chain saw; to pump more oil, drill more wells; to get more food, invent pest-resistant plants.
That logic thrived on new frontiers and more intensive production, and it held off the prophets of scarcity—from Thomas Robert
A. They may deteriorate.
B. They may benefit from economy.
C. They are associated with productivity.
D. They are closely related to technology.

[单项选择]Telecommunications is just one of the means by which people communicate and, as such, we need to look at telecommunications and any other communications technologies within the wider context of human communication activity. Early findings show that many people are uneasy and even fearful of information technology by avoiding it or by using it in minimal ways.
To obtain this type of data we have spent time with individuals, watching how they communicate where they get confused, what they don’t understand and the many mistakes they make. You can do this type of research yourself in an informal way. Just watch someone at the desk next to you trying to use a phone or trying to fill in a form. What you will quickly notice about people on the phone is that they use very few of the buttons available on the keypad, and they get quite anxious if they have to use any buttons outside their normal ones. Most will not use the instruction book, and those that do will not necessarily have a re
A. By asking people to answer questions orally.
B. By asking people to fill in various question forms.
C. By making people use instruments of everyday communication.
D. By watching people using information technology.

[单项选择]

Our boasted civilization is but a thin veneer, which cracks and scares off at the first impact of prima1 passions.（）

A. creative
B. traditional
C. uncontrollable
D. original

[填空题]A simple sentence consists of a single c______ which contains a subject and a predicate and stands alone as its own sentence.

[单项选择]Air and water pollution are our Number One priorities regarding the current and future state of the environment．
A. 有关环境的现状和未来，空气和水污染是我们关注的首要问题。
B. 未来和现在的水污染和空气污染状况是我们关注的首要问题。
C. 由于空气和水污染，未来和现在的环境成了我们关注的首要问题。
D. 空气污染和水污染是未来和现在环境的头号杀手。