52. What does the author mean by AI machines acting ethically?
- A. They are capable of predicting possible risks.
- B. They weigh the gains and losses before reaching a decision.
- C. They make sensible decisions when facing moral dilemmas.
- D. They sacrifice everything to save human lives.
答案：C
答案句：But can artificial intelligence (AI) machines act ethically, meaning can they be honest and fair? … Sometimes, however, they will face a choice between lives. Should the cars be programmed to avoid hitting a child running across the road, even if that will put their passengers at risk?
参考译文：但是人工智能机器能否有道德地行动，也就是说，它们能否诚实和公平？ … 然而，有时它们将面临在生命之间做出选择。是否应该对汽车进行编程，以避免撞到跑过马路的儿童，即使那将使乘客面临危险？
定位线索：题干“acting ethically”→答案句“act ethically, meaning can they be honest and fair”；文中“face a choice between lives”对应选项C“making sensible decisions when facing moral dilemmas”。
解析：题干问“acting ethically”的含义。答案句用“meaning”直接解释为“honest and fair”，后文举例说明在道德困境中做选择，如是否避让儿童而危及乘客，综合得出“面对道德困境时做出明智决定”，对应选项C。选项A“predicting possible risks”、B“weighing gains and losses”、D“sacrifice everything”均偏离“道德”核心，属偷换概念。
53. What is said to be the bigger challenge facing humans in the AI age?
- A. How to make super-intelligent AI machines share human feelings.
- B. How to ensure that super-intelligent AI machines act ethically.
- C. How to prevent AI machines doing harm to humans.
- D. How to avoid being over-dependent on AI machines.
答案：B
答案句：Perhaps there will be lessons to learn from driverless cars, but they are not super-intelligent beings. Teaching ethics to a machine even more intelligent than we are will be the bigger challenge.
参考译文：也许从无人驾驶汽车中可以学到一些教训，但它们并不是超级智能生物。向比我们更聪明的机器教授伦理将是更大的挑战。
定位线索：题干“bigger challenge”→答案句“Teaching ethics to a machine even more intelligent than we are will be the bigger challenge”；文中“Teaching ethics”对应选项B“ensure that super-intelligent AI machines act ethically”。
解析：题干问AI时代人类面临的更大挑战。答案句明确指出“Teaching ethics to a machine even more intelligent than we are will be the bigger challenge”，即教更智能的机器伦理，与选项B“确保超级智能AI机器有道德地行动”同义。选项A“share human feelings”、C“prevent harm”、D“avoid over-dependence”均无中生有，文中未提及。
55. What does Eric Schmidt think of artificial intelligence?
- A. It will be far superior to human beings.
- B. It will keep improving as time goes by.
- C. It will prove to be an asset to human beings.
- D. It will be here to stay whatever the outcome.
答案：C
答案句：He thinks AI will be positive for humans. He said people will be the winner, whatever the outcome. Advances in AI will make human beings smarter, more able and “just better human beings.”
参考译文：他认为AI对人类将是积极的。他说无论结果如何，人类都将是赢家。AI的进步将使人类更聪明、更有能力，并且“成为更好的人类”。
定位线索：题干“Eric Schmidt think of artificial intelligence”→答案句“He thinks AI will be positive for humans”；文中“positive for humans”对应选项C“prove to be an asset to human beings”。
解析：题干问Eric Schmidt对AI的看法。答案句直接引用他的观点“AI will be positive for humans”，认为AI对人类有益，与选项C“对人类是资产”同义。选项A“far superior”、B“keep improving”、D“here to stay”均非其观点，属无中生有。