在探寻考研英语的真相过程中，考生们往往发现，真正的挑战并非单词的堆砌，而是对文章结构和逻辑的深刻理解。以下是对一段考研英语真题内容的分析及答案：
【真题内容】
Last year, the government announced a series of measures to improve public transportation. These included the construction of new subway lines and the expansion of existing bus routes. However, despite these efforts, public transportation still faces significant challenges. One major issue is the lack of funding for maintenance and upgrades. Another problem is the lack of awareness among the public about the benefits of using public transportation.
【答案解析】
1. The main purpose of the passage is to:
A. Discuss the success of the government's measures to improve public transportation.
B. Analyze the reasons why public transportation still faces challenges despite government efforts.
C. Compare the construction of new subway lines with the expansion of existing bus routes.
D. Highlight the benefits of using public transportation.
正确答案：B
2. Which of the following is NOT mentioned as a challenge faced by public transportation?
A. Lack of funding for maintenance and upgrades.
B. Inadequate bus routes.
C. High cost of transportation.
D. Lack of awareness among the public.
正确答案：C
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