Class 7 Formal Idioms and Informal Speech Worksheet [Free PDF]

Class 7 Formal Idioms and Informal Speech Worksheet [Free PDF]
Last Updated At: 30 Apr 2026
7 min read

Vocabulary - Formal Idioms vs Informal Expressions: English Grammar Worksheet for Grade 7 
 

Mastering the use of **formal idioms** and **informal expressions** is crucial for students to enhance their communication skills in both professional and casual settings. This Grade 7 English grammar worksheet on formal idioms versus informal expressions helps students understand when and how to use these different types of phrases in writing and speaking. By practicing these idiomatic expressions, students will sound more natural and effective in different situations. 

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## What is the topic? 

This worksheet focuses on the difference between **formal idioms** and **informal expressions**. While both types of phrases are used to express ideas, formal idioms are more commonly found in professional or academic settings, whereas informal expressions are used in casual conversations. Understanding these distinctions helps students know when to use each phrase appropriately. 

By practicing with formal and informal expressions, students will enhance their ability to communicate clearly in any context. 

## What’s in this worksheet? 

This worksheet includes a variety of exercises designed to help students understand and apply both formal idioms and informal expressions. The activities include: 

1. **True or False:** Identify whether a statement about formal and informal idioms is true or false. 
2. **Sort the Words:** Sort formal and informal expressions into their respective categories. 
3. **Fill in the Blanks:** Complete sentences with either formal or informal expressions based on context. 
4. **Multiple Choice Questions:** Choose the appropriate idiomatic expression based on the situation. 
5. **Sentence Rewriting:** Rewrite sentences using the correct formal or informal expression. 

These exercises help students learn to use idioms and expressions effectively in various scenarios. 

## Definitions, examples, techniques, and tips 

- **Formal idioms** are phrases commonly used in professional, academic, or business settings. They are more polite and structured, making them appropriate for formal conversations and writing. 

- **Example:** “In due course” means “later on” or “after some time.” 
- **Formal idiom:** “We shall address the issue in due course.” 

- **Informal expressions** are casual phrases typically used in everyday conversation, often with friends or in informal writing. They are more relaxed and easy-going. 

- **Example:** “Hit the sack” means “to go to bed.” 
- **Informal expression:** “I’m exhausted, I think I’ll hit the sack.” 

- **Technique:** To practice using idioms correctly, pay attention to the tone of your conversation or writing. Use formal idioms in professional emails and informal expressions in casual chats with friends. 

- **Quick learning tip:** Start by incorporating both types of expressions into sentences you might say or write. This will help you understand when and where to use them. 
 

## Why is it important to learn this? 

Understanding when to use formal idioms and informal expressions enhances your ability to communicate effectively in different settings. Here's why this skill is essential: 

- **Clarity and professionalism:** Using formal idioms in business or academic settings makes you sound more polished and professional. 
- **Relatability in casual settings:** Informal expressions allow you to connect more easily with others in informal settings, making communication more friendly and approachable. 
- **Writing and speaking versatility:** Knowing both formal and informal phrases makes you versatile in your language use, ensuring you can adapt to different situations. 

Mastering formal and informal expressions is also beneficial for exam performance, especially in the speaking and writing sections. 

## Where will this knowledge help you? 

This knowledge will be valuable in various areas of your academic and professional life: 

- **Exams:** Whether you’re writing an essay or speaking in an oral exam, using the right type of expression will help you convey your ideas clearly and appropriately. 
- **Writing tasks:** Whether it's a formal report or a friendly email, knowing which expressions to use makes your writing sound more authentic. 
- **Public speaking and conversation:** Using formal idioms in speeches and informal expressions in casual discussions ensures you adapt to your audience and the context. 
 

## How to use this worksheet? 

Follow these steps to maximize your learning from this worksheet: 

1. **Attempt independently first:** Work through the exercises on your own to test your understanding of formal idioms and informal expressions. 
2. **Review answers carefully:** After completing the exercises, check your answers against the answer key to spot any mistakes. 
3. **Correct mistakes:** If you used an informal expression in a formal context, revisit the explanations and focus on the correct usage. 
4. **Practice regularly:** Use the exercises to build your understanding of both formal and informal expressions. The more you practice, the more natural these expressions will become in your writing and speaking. 

The solutions follow the exact worksheet order, so comparing your answers will help reinforce your understanding. 

## Important tips and tricks 

Here are some tips for mastering formal and informal expressions: 

1. **Common mistakes:** Mixing up formal and informal idioms, like using “hit the sack” in a formal email or “in due course” in a casual conversation. 
2. **What examiners expect:** In formal writing and exams, use formal idioms. In informal writing, such as personal emails, casual conversations, or blogs, informal expressions are more appropriate. 
3. **How to score full marks:** To score well, ensure you use the right idiomatic expression for the context. Be mindful of the tone of your writing or speech. 
4. **Approaching activity-based tasks:** When asked to rewrite sentences or complete exercises, focus on the intended formality of the context and select the appropriate idiomatic expression accordingly. 
 

## Complete Answer Key 

**Exercise No. 1 - True or False** 

1. False 
2. False 
3. True 
4. False 
5. True 
6. False 
7. True 
8. False 
9. False 
10. True 

**Exercise No. 2 - Sort the idioms and their meanings in respective columns** 

- **Formal Idioms:** 
- In due course: Later on 
- Pass away: Die 
- Make up: Invent 
- Call it a day: Finish working 
- Put in extra effort: Go the extra mile 
- Take a rain check: Decline an invitation 

- **Informal Expressions:** 
- Break a leg: Good luck 
- Get by: Survive 
- Over the moon: Very happy 
- Hang in there: Persevere 
- Time flies: Time passes quickly 
- Back in the day: Long ago 

**Exercise No. 3 - Choose the correct word from the pair** 

1. Die 
2. Hit the sack 
3. Stop working 
4. Survive 
5. Persevere 
6. Invent 
7. Very happy 
8. Ultimately 
9. Later on 
10. Unexpectedly 

**Exercise No. 4 - Choose the correct option to complete the sentence** 

1. In due course 
2. Hit the sack 
3. Over the moon 
4. Hit the sack 
5. Get by 
6. Reschedule 
7. Wrap up 
8. Bring up 
9. Call it a day 
10. Call off 

**Exercise No. 5 - Rewrite the sentence using the formal idiom** 

1. He passed away peacefully in his sleep. 
2. After working late all week, she decided to hit the sack. 
3. He worked hard on the project, going the extra mile. 
4. She persevered through the challenges. 
5. They were over the moon with the results. 
6. We’ll discuss it in due course. 
7. They managed to get by with limited resources. 
8. He invented a new design for the project. 
9. At the end of the day, we need to call it a day and make a decision. 
10. She was under the weather and decided to stay home. 

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