在07年考研英语中，难题往往涉及复杂句型、生僻词汇和深层语义理解。以下是一些可能的难题答案示例：
1. 难题：The speaker's tone in the passage can best be described as:
答案：Ironical
2. 难题：Which of the following is NOT mentioned as a factor contributing to the problem discussed in the passage?
答案：Increased use of solar energy
3. 难题：The author suggests that the decline in the number of young people entering the field of science is primarily due to:
答案：Lack of engaging role models
4. 难题：In line 7, "they" refers to:
答案：The new generation of students
5. 难题：Choose the sentence that best expresses the essential information in the highlighted sentence in the passage.
答案：The rate of increase in global temperatures has been accelerating over the past century.
【考研刷题通】——您的考研刷题小助手
无论你是准备政治、英语还是数学，【考研刷题通】小程序都能为你提供全面、精准的考研科目刷题服务。覆盖政治、英语、数学等全部考研科目，海量真题、模拟题任你练习，助力你高效备战考研。立即下载，开启你的考研刷题之旅！【考研刷题通】，助力考研成功！