1) The main(主要的)idea(思想,主意)of this passage(文章) is…
2)Which of the following(下列的)statements(句子)best expresses
(表达) the main idea of the passage?
3) The passage mainly discusses(讨论)…
4)This passage mainly deals with(涉及)…
5) The author‘s purpose(意图) in writing this passage is…
6)What is the passage mainly about?