52. What does PepsiCo think it will have to do in the future?
- A. Invest more to develop new snacks.
- B. Reduce levels of obesity in the US.
- C. Change consumers' eating habits.
- D. Keep on improving its products.
答案：D
答案句：However, its new 10-year plan makes clear it believes it still has a long way to go.
参考译文：然而，其新的十年计划表明，它认为自己仍有很长的路要走。
定位线索：题干“What does PepsiCo think it will have to do in the future”→答案句“its new 10-year plan makes clear it believes it still has a long way to go”；文中“still has a long way to go”对应选项D“Keep on improving its products”（继续改进其产品）。
解析：题干问百事公司认为未来必须做什么，答案句指出其十年计划表明“仍有很长的路要走”，暗示需要继续改进产品，与选项D“继续改进产品”一致。选项A“投资更多开发新零食”、B“降低美国肥胖率”、C“改变消费者饮食习惯”在原文中虽有提及但并非百事公司认为自身未来必须做的事，属于答非所问或偷换概念。
53. Why does PepsiCo plan to alter its products, according to Indra Nooyi?
- A. To ensure the company's future development.
- B. To adapt to its customers' changed taste.
- C. To help improve its consumers' lifestyles.
- D. To break the trade-off in its product design.
答案：A
答案句：Indra Nooyi, PepsiCo chairman, said the plan to make its products healthier was important for the company's growth.
参考译文：百事公司董事长Indra Nooyi表示，让产品更健康的计划对公司的增长很重要。
定位线索：题干“Why does PepsiCo plan to alter its products, according to Indra Nooyi”→答案句“the plan to make its products healthier was important for the company's growth”；文中“important for the company's growth”对应选项A“To ensure the company's future development”（确保公司未来发展）。
解析：题干问根据Indra Nooyi的观点，百事公司为何计划改变产品，答案句明确说该计划“对公司的增长很重要”，即为了公司未来发展，对应选项A。选项B“适应顾客口味变化”、C“帮助改善消费者生活方式”、D“打破产品设计中的权衡”虽在原文中出现，但均不是Indra Nooyi给出的直接原因，属于偷换概念或答非所问。
55. What has PepsiCo been doing to achieve its objective?
- A. Studying WHO's guidelines.
- B. Increasing its research funding.
- C. Expanding its market overseas.
- D. Cutting its production costs.
答案：B
答案句：However, Dr Mehmood Khan, chief scientific officer, said the company had doubled research and development spending in the past five years and was “committed to sustaining investment”, adding that companies cannot cost-cut their way to increasing sales.
参考译文：然而，首席科学官Mehmood Khan博士表示，公司在过去五年中已将研发支出翻了一番，并“致力于持续投资”，并补充说公司不能通过削减成本来增加销售额。
定位线索：题干“What has PepsiCo been doing to achieve its objective”→答案句“had doubled research and development spending”和“committed to sustaining investment”；文中“doubled research and development spending”对应选项B“Increasing its research funding”（增加研究经费）。
解析：题干问百事公司为实现目标一直在做什么，答案句指出公司“已将研发支出翻了一番”并“致力于持续投资”，即增加研究经费，对应选项B。选项A“研究WHO指南”在原文中提及但并非公司为实现目标所做的具体行动，属于答非所问；选项C“扩大海外市场”在原文中无依据，属于无中生有；选项D“削减生产成本”与原文“cannot cost-cut their way”直接矛盾，属于偷换概念。