1. Lesson Overview
In this lesson, you will learn:
- What interjections are
- How they express emotion or reaction
- Punctuation rules with interjections
- Formal vs informal usage
- When to avoid interjections in academic writing
Interjections are the most expressive part of speech.
However, they are rarely used in formal academic writing.
2. Core Explanation
A. What Is an Interjection?
An interjection is a word or phrase that expresses sudden emotion, reaction, or feeling.
Example:
Wow! The Northern Lights are spectacular.
“Wow!” expresses surprise.
B. Interjections and Punctuation
Interjections are usually followed by:
- Exclamation mark (!) for strong emotion
- Comma (,) for mild emotion
Strong emotion:
Oh no! The volcano erupted.
Mild emotion:
Well, we should reconsider the proposal.
C. Position in a Sentence
Interjections typically appear at the beginning.
Ah! That explains the result.
They may appear in dialogue.
“Wow,” she said, “that is impressive.”
D. Formal vs Informal Usage
Interjections are common in:
- Conversation
- Dialogue
- Informal writing
They are uncommon in:
- Academic essays
- Research papers
- Formal reports
Formal writing avoids emotional expression.
Instead of:
Wow! The results are surprising.
Use:
The results are surprising.
E. Common Interjections
Emotion → wow, amazing, incredible
Surprise → oh, ah
Regret → alas
Attention → hey
Relief → phew
Use carefully in academic contexts.
3. Rule Table
|
Type |
Example |
Usage Context |
|
Surprise |
Wow! |
Informal |
|
Regret |
Alas |
Literary |
|
Attention |
Hey! |
Spoken |
|
Mild reaction |
Well, |
Conversational |
4. Examples
Wow! Mount Everest is breathtaking.
Alas, many ancient civilizations disappeared.
Oh! The experiment produced unexpected results.
Well, the data suggest a different conclusion.
Each example shows emotion before the main clause.
5. Common Mistakes Spotlight
⚠ Overusing interjections in formal writing
Academic writing should remain objective.
⚠ Incorrect punctuation
Incorrect: Wow the view is beautiful.
Correct: Wow! The view is beautiful.
⚠ Using slang in formal writing
Avoid informal expressions like “Yay!” in academic contexts.
6. End of Lesson Check
You should now be able to:
- Identify interjections
- Use correct punctuation
- Distinguish formal and informal usage
- Avoid inappropriate academic use