仔细阅读：从定位到排除
遇到“原因是什么”一类问题，不要只找重复出现的名词，要找引起变化的动作和结果。
由 CET通 整理的原创学习示例；不是官方真题，也不保证考试成绩。先看题干，再读短文
下面的英文短文是本站为讲解方法自编的练习材料。请先用一句话写下你认为归还率提高的原因，再看选项。
Last autumn, a university placed thirty reusable umbrellas outside its library. During the first week, fewer than half were returned within two days. Staff noticed that the return box was hidden behind a notice board. They moved it next to the library entrance and added a short reminder to the borrowing page. In the following week, the two-day return rate rose to nearly eighty percent. The university did not buy more umbrellas; it first changed how easy they were to return.What most likely explains the higher return rate?
- The university bought additional umbrellas.
- The return box became easier to find, and borrowers received a reminder.
- Students stopped borrowing umbrellas from the library.
- The library shortened the borrowing period to one day.
逐步找证据
- 定位问题对象：题干问的是 higher return rate，而不是伞的总数、图书馆人数或借用费用。回到文中寻找“归还率”变化前后发生了什么。
- 把动作与结果连起来：工作人员把归还箱移到入口，还在借用页面加入提醒；下一周两天内的归还率接近八成。这是文中直接相连的变化。
- 核对限定词：末句明确说学校没有买更多伞，所以 A 即使看起来与主题相关，也与原文相反。
参考答案：B
B 同时保留了“更容易找到归还处”和“收到提醒”两个线索。C 没有原文依据；D 把“两天内归还率”误读成“一天借用期限”，属于偷换时间信息。
把方法迁移到下一题
如果题目改问 What did the university NOT do?，就应寻找明确否定的动作：did not buy more umbrellas。同一篇文章可以考主旨、细节和推断，但每一种问法都必须回到对应句子。做完题后把“题干关键词 → 原文证据 → 排除理由”写成一行，比只记住字母 B 更有复习价值。
练习时可以先限时独立作答，交卷后再展开本站解析；若答错，先判断是没定位到句子、误读了否定，还是被选项中的熟悉词吸引。这样错题本记录的是可改进的问题，而不是一个孤立的答案。