46. What does the author say we need to do to strengthen our willpower?
- A. Keep it under control.
- B. Apply it continuously.
- C. Learn from entrepreneurs.
- D. Aim at success determinedly.
答案：B
答案句：Willpower is just like a muscle; to keep it strong you need to constantly exercise it. … It is a behavior we are born with more than one we learn; however, it is possible to not only learn it, but also strengthen it with constant exercise.
参考译文：意志力就像肌肉；要保持它强壮，你需要不断锻炼它。……它是一种我们天生就有的行为，而不是学来的；然而，我们不仅可以学会它，还可以通过持续锻炼来强化它。
定位线索：题干“strengthen our willpower”→答案句“strengthen it with constant exercise”；文中“constant exercise”对应选项B“Apply it continuously”（持续运用）。
解析：题干问如何增强意志力，答案句明确指出“strengthen it with constant exercise”，即通过持续锻炼来强化，与选项B“持续运用”构成同义转述。选项A“控制它”、C“向企业家学习”、D“坚定地瞄准成功”均无原文依据，属于无中生有。
50. Why can it be difficult for us to maintain self-control?
- A. Most of us are not in the habit of exercising self-control.
- B. We may not get immediate rewards from self-control.
- C. Self-control tends to be associated with pains.
- D. Self-control only brings about small benefits.
答案：B
答案句：Because there is a delayed satisfaction associated with self-control, it can be easy to get off track.
参考译文：因为与自我控制相关的是延迟的满足感，所以很容易偏离轨道。
定位线索：题干“difficult to maintain self-control”→答案句“easy to get off track”；文中“delayed satisfaction”对应选项B“not get immediate rewards”（得不到即时回报）。
解析：题干问为什么难以保持自我控制，答案句指出原因是“delayed satisfaction”（延迟满足），即回报来得慢，与选项B“得不到即时回报”对应。选项A“多数人没有习惯”无中生有，C“与痛苦相关”偷换概念（原文是延迟满足，不是痛苦），D“只带来小利益”程度过重且无依据。