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____ receiving the book, she went over the most interesting chapters first

answer 🤖

In ❌

答案: On

on除了表示“在..上”,还可表示“就在...之后,一.就”; 此外空格后的动词用了动名词,也可提醒此处很可能用介词。

翻译: 一收到书她就首先看了那些最有趣的章节。

重点在"一...就"

关键语法点:介词on表“一...就”的用法

正确答案On
错误选项:In


深度解析

  1. on + doing 的固定搭配

    • 结构On + 动名词(doing)
    • 含义:表示“在...之后立即做某事”或“一...就...”,强调动作的紧接性
    • 例句:
      • On hearing the news, she burst into tears.
        (一听到消息,她立刻哭了起来。)
      • On arriving at the airport, he called his family.
        (一到机场,他就给家人打了电话。)
  2. 错误选项 "in" 的排除

    • in + doing 表示“在做某事的过程中”,强调动作的持续性,与题意矛盾。
    • ❌ 错误句:
      In receiving the book, she went over the chapters...
      → 暗示“她在收书的过程中就开始看章节”(不符合逻辑)。

对比练习

介词含义例句逻辑合理性
On一...就(立即)On opening the box, she found a gift.
In在...过程中In reading the book, she took notes.
In❌ 本题场景In receiving the book, she read chapters...❌(动作无法同时持续)

隐藏考点:动名词前的介词选择

  • 动名词(receiving)作宾语时,前面必须有介词(如on, in, after等),根据句意选择合适介词。
  • 类似结构:
    • After finishing the work, he left.(完成工作后离开)
    • By practicing daily, she improved.(通过每天练习进步)

自测练习

  1. ____ seeing the accident, he called 120 immediately.
    答案:On(一看到事故,他立刻打电话)
  2. ____ studying for hours, she felt exhausted.
    答案:After(学习几小时后感到累)
  3. ____ entering the room, he turned on the light.
    答案:On(一进房间就开灯)

记忆口诀

“On加doing表立即,动作紧接莫迟疑;
In表过程持续中,前后逻辑要理清!”

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