少儿英语

10个Always后动词用原形的语法规则详解

发布时间2025-03-22 02:26

在英语学习中,动词的使用一直是重中之重,尤其是在不同的语法结构中,动词的形式变化常常让人感到困惑。然而,有一些特定的语法规则要求动词必须保持原形,无论句子的时态或主语如何变化。理解这些规则不仅能帮助你避免常见的语法错误,还能让你的英语表达更加准确和流畅。本文将详细解析10个Always后动词用原形的语法规则,帮助你更好地掌握这一关键知识点。

1. 在情态动词后,动词必须用原形

情态动词(Modal Verbs)如can、could、may、might、shall、should、will、would、must等,后面接的动词总是用原形。例如:

  • She can speak three languages.
  • You must finish your homework before going out.

2. 在助动词do/does/did后,动词用原形

助动词do、does、did用于构成疑问句或否定句时,后面的动词必须用原形。例如:

  • Does she like coffee?
  • They didn’t go to the party last night.

3. 在使役动词后,动词用原形

使役动词(Causative Verbs)如make、let、have等,后面接的动词通常用原形。例如:

  • His parents let him stay up late.
  • She made her son clean his room.

4. 在感官动词后,动词用原形

感官动词(Verbs of Perception)如see、hear、watch、feel、notice等,后面接的动词通常用原形,表示动作的完整性。例如:

  • I saw him run across the street.
  • She heard the birds sing in the morning.

5. 在had better后,动词用原形

“Had better”表示建议或警告,后面接的动词必须用原形。例如:

  • You had better take an umbrella; it might rain.
  • We had better leave now if we don’t want to be late.

6. 在would rather后,动词用原形

“Would rather”表示偏好,后面接的动词必须用原形。例如:

  • I would rather stay home than go to the party.
  • She would rather read a book than watch TV.

7. 在why not后,动词用原形

“Why not”用于提出建议,后面接的动词必须用原形。例如:

  • Why not take a break and relax?
  • Why not try this new restaurant?

8. 在suggest/propose/recommend后接的宾语从句中,动词用原形

在某些表示建议的动词(如suggest、propose、recommend)后接的宾语从句中,动词通常用原形,尤其是在美式英语中。例如:

  • I suggest that he take the job.
  • They recommended that we arrive early.

9. 在It is important/necessary/essential that后的从句中,动词用原形

在It is important/necessary/essential that引导的从句中,动词通常用原形,表示必要性或重要性。例如:

  • It is important that you be on time.
  • It is necessary that she submit the report by Friday.

10. 在固定搭配短语中,动词用原形

一些固定搭配短语,如let’s、had better、would rather等,后面接的动词必须用原形。例如:

  • Let’s go to the park.
  • I would rather not talk about it.

通过以上10条规则,我们可以清晰地看到,在某些特定的语法结构中,动词必须保持原形。掌握这些规则不仅能帮助你避免语法错误,还能让你的英语表达更加自然和地道。在实际应用中,多加练习和巩固这些规则,你的英语水平一定会得到显著提升。

猜你喜欢:l的大写字母