71. Our vision of the future used to be inspired by ____.

1. our desire for lives of fulfillment
2. our faith in science and technology
3. our awareness of potential risks
4. our belief in equal opportunity

72. The IUCN's "Red List" suggest that human being are ____.

1. a misplaced race
2. a sustained species
3. the world's dominant power
4. a threaten to the environment

73. Which of the following is true according to Paragraph 5?

1. The interest in science fiction is on the rise.
2. Arc helps limit the scope of futurological studies.
3. Technology offers solutions to social problem.
4. Our Immediate future is hard to conceive.

74. To ensure the future of mankind, it is crucial to ____.

1. explore our planet's abundant resources
2. adopt an optimistic view of the world
3. draw on our experience from the past
4. curb our ambition to reshape history

75. Which of the following would be the best title for the text?

1. Uncertainty about Our Future
2. Evolution of the Human Species
3. The Ever-bright Prospects of Mankind
4. Science, Technology and Humanity

(Reference keys.)