在佛山导航考研英语的备考过程中，精准掌握答案的关键在于对词汇的熟练运用和语法的精准把握。以下是对几个典型问题的答案解析：
1. 问题：What is the main idea of this passage?
答案：The passage mainly discusses the importance of environmental protection and the challenges faced by modern society.
2. 问题：Choose the word that best completes the sentence.
答案：The correct word is "beneficial," as it fits the context of the sentence.
3. 问题：Translate the following sentence into English.
答案：The sentence translates to "她努力学习，终于通过了考试。"
4. 问题：What is the cause and effect relationship in the text?
答案：The cause is the increase in pollution, and the effect is the decline in public health.
5. 问题：Fill in the blanks with appropriate prepositions.
答案：The blanks should be filled with "in," "of," and "on," respectively.
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