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英语初二动名词

动名词

动名词形式是 doing,具有名词性质。初二学习动名词的难点,不在于形式看不懂,而在于它和现在分词长得一样,却不总是做同样的事。做题时要先看它在句子里充当什么成分。

学习目标

  • 知道动名词的基本形式是 doing
  • 会识别动名词作主语、宾语和介词宾语。
  • 会记忆若干常见 doing 搭配。
  • 会区分动名词和现在分词的基本功能。

核心概念

1. 动名词可以作主语

例如:

Swimming is good exercise. Reading books is useful.

这里 SwimmingReading books 都相当于名词性成分。

2. 介词后通常接动名词

例如:

She is good at singing. He left without saying goodbye.

3. 一些动词后固定接 doing

常见的有:

  • enjoy doing
  • finish doing
  • practice doing
  • mind doing

知识点详解

动名词和现在分词形式相同

它们都长成 doing,但功能不完全一样。

例如:

Swimming is fun. (动名词,作主语) The boy is swimming. (现在分词,和 be 动词构成进行时)

stop doingstop to do

这是一个高频区别:

  • stop doing:停止正在做的事
  • stop to do:停下来去做另一件事

典型例题

例题 1:填空

  1. I enjoy ___ (listen) to music.
  2. She is good at ___ (dance).

解析:

enjoy 后接动名词,填 listening

介词 at 后接动名词,填 dancing

答案:

  1. listening
  2. dancing

例题 2:改错

Reading books are useful.

解析:

Reading books 整体作主语,视为单数概念,谓语应用 is

答案:

Reading books is useful.

易错点

易错点为什么错正确理解
介词后接原形动词忘了介词后通常接动名词after finishing, at singing
enjoy to do把不定式和动名词混了enjoy 后常接 doing
动名词主语后用复数谓语看到 books 被干扰动名词短语整体常看作单数

规则总结

介词 + doing enjoy / finish / practice / mind + doing Doing + 谓语 + 其他

练习题

  1. He finished ___ (do) his homework.
  2. They are interested in ___ (collect) stamps.
  3. 改错:To swim is my hobby.(保留原意,改成动名词作主语)
  4. 翻译:完成作业后,他去打篮球。
  5. 说一说 stop doingstop to do 的区别。

参考答案

  1. doing
  2. collecting
  3. Swimming is my hobby.
  4. After finishing his homework, he went to play basketball.
  5. stop doing 表示停止正在做的事,stop to do 表示停下来去做另一件事。

关联知识

  • 动名词和不定式常一起考查,重点要记固定搭配和语义差别。
  • 阅读和完形里,介词后接 doing 是高频考点。