单选题
In the last century people have accomplished almost unbelievable technological feats. From the invention of the steamship to the development of the spaceship, humankind"s mechanical genius has been displayed. A phone is picked up and through a thin, plastic-coated wire, conversation reaches people around the block or thousands of miles away. Television creates images on a glass screen, and soon, through holography(全息照相技术) a screen may not even be needed. This apparent technological mastery has led people to the quite incorrect and dangerous belief that technology can solve any and every problem the environment presents. All that is needed is enough time, effort, money, and know-how.
But not everything is possible. For instance, unaided humans in their present form could not run a mile in one minute, or anywhere near it. That is believed to be biologically impossible.
Just as some things are biologically impossible, others are technologically infeasible or improbable. It is not likely that we will solve the world"s food problem technologically. Even with the great advances in methods of food production, more people are starving today than ever before. This is partially because population is increasing faster than the research and innovations that compensate for such population growth.
Technology, for most people, is not the solution to the loneliness or despair, nor will it alleviate(缓解) hatred or prejudice. It can be a tool but not a total cure. In fact, the advanced technologies of modern people might ultimately end our existence, because if technological "progress" is not accompanied by appropriate social change and ecological(生态的) responsibility, people may drown in the poisons of their own industrial wastes.
单选题
What is the main topic of this passage?
【正确答案】
B
【答案解析】[解析] 文章最后一段最后一句“In fact, the advanced technologies of modern people might ultimately end our existence, because if technological "progress" is not accompanied by appropriate social change and ecological(生态的) responsibility, people may drown in the poisons of their own industrial wastes.”是中心。故选B。
单选题
In Para. 1, the author gives a few examples of technological achievements to show all of the following EXCEPT that ______.
【正确答案】
C
【答案解析】[解析] 文章首段倒数第二句“This apparent technological mastery has led people to the quite incorrect and dangerous belief that technology can solve any and every problem the environment presents.”点明了科技并不能解决所有问题。故选C。
单选题
It can be inferred from the passage that the expression "the last century" (Para. 1) is used to refer to ______.
【正确答案】
D
【答案解析】[解析] “In the last century people have accomplished almost unbelievable technological feats.”在文中“the last century”指的是“the past century”。故选D。
单选题
In Para. 3, the author uses the example of the world"s food problem to show that ______.
【正确答案】
A
【答案解析】[解析] 文章第三段中后三句“It is not likely that we will solve the world"s food problem technologically. Even with the great advances in methods of food production, more people are starving today than ever before. This is partially because population is increasing faster than the research and innovations that compensate for such population growth.”提出了不仅仅是食物生产方面的科技，也有社会方面的问题(人口增长速度过快)。故选A。
单选题
The first sentence of Para. 4 could be paraphrased as which of the following?
【正确答案】
B
【答案解析】[解析] 文章最后一段第一句“Technology, for most people, is not the solution to the loneliness or despair, nor will it alleviate(缓解) hatred or prejudice.”和B对应，都提到了科技不是万能的，且B的结尾和文章最后一段的第一句衔接紧密。