PREFIX EXERCISE WORKSHEET FOR CLASS

 

Prefix Exercise Worksheet

Instructions:

• Read each question carefully.
• Complete each section as instructed.
• Use the context to understand the meaning of words with prefixes.

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Part A: Matching Prefixes with Meanings

Match each prefix with its correct meaning by writing the letter next to the prefix.

Prefix	Meaning
1. anti-	a) not/opposite of
2. dis-	b) before
3. un-	c) again
4. pre-	d) against
5. re-	e) opposite/negative
6. mis-	f) wrongly
7. in-	g) within
8. sub-	h) below/under
9. trans-	i) across/through
10. inter-	j) between/among

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Part B: Prefix Identification

Identify and underline the prefix in each of the following words. Then, write down the meaning of the prefix.

1. Unhappy
2. Misunderstand
3. Prehistoric
4. Rewrite
5. Dislike
6. Interact
7. Submarine
8. Incomplete
9. Transatlantic
10. Antibiotic

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Part C: Word Formation

Using the following prefixes, create a new word by adding it to the base word provided. Write the new word and its definition.

1. re- + view = _______________ (Definition: _______________________________)
2. un- + known = _______________ (Definition: _______________________________)
3. dis- + agree = _______________ (Definition: _______________________________)
4. pre- + heat = _______________ (Definition: _______________________________)
5. anti- + social = _______________ (Definition: _______________________________)
6. sub- + marine = _______________ (Definition: _______________________________)
7. trans- + port = _______________ (Definition: _______________________________)
8. in- + correct = _______________ (Definition: _______________________________)
9. mis- + place = _______________ (Definition: _______________________________)
10. inter- + national = _______________ (Definition: _______________________________)

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Part D: Sentence Completion

Complete the following sentences by using a word that contains one of the prefixes listed below.

Prefixes: dis-, un-, re-, pre-, mis-, sub-, inter-, trans-, anti-, in-

1. She had to _______pack her bag because she forgot her textbook.
2. The scientist studied _______historic fossils.
3. He was _______able to attend the meeting due to a prior commitment.
4. After their argument, they needed to _______solve their differences.
5. The instructions were _______leading, causing confusion among the team.
6. The _______national conference was attended by delegates from over 20 countries.
7. The document was _______complete, so they needed to gather more information.
8. A _______marine vessel can operate underwater.
9. The _______portation system links multiple cities across the region.
10. _______social behavior can lead to feelings of isolation.

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Part E: Prefix Analysis

Analyze the following sentences and determine the effect of the prefix on the meaning of the underlined word.

1. The medication was ineffective against the virus.

   • Prefix: __________
   • Effect on meaning: ___________________________________

2. His actions were irresponsible given the situation.

   • Prefix: __________
   • Effect on meaning: ___________________________________

3. The project had to be restarted after a major setback.

   • Prefix: __________
   • Effect on meaning: ___________________________________

4. She had a miscommunication with her colleague.

   • Prefix: __________
   • Effect on meaning: ___________________________________

5. The submarine submerged to avoid detection.

   • Prefix: __________
   • Effect on meaning: ___________________________________

6. The treaty was an international agreement.

   • Prefix: __________
   • Effect on meaning: ___________________________________

7. They conducted an interview with the job candidate.

   • Prefix: __________
   • Effect on meaning: ___________________________________

8. He used antibacterial soap to wash his hands.

   • Prefix: __________
   • Effect on meaning: ___________________________________

9. The error was unintentional.

   • Prefix: __________
   • Effect on meaning: ___________________________________

10. She needed to redesign the layout of the page.

    • Prefix: __________
    • Effect on meaning: ___________________________________

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Part F: Prefix Application

Use a prefix to create a new word that fits the sentence.

1. The instructions were clear, so there was no room for ________________ (interpret).
2. To protect against infection, they used an ________________ (bacterial) solution.
3. Before the event, they made all ________________ (arrangements).
4. The statement was ________________ (correct), so the editor made changes.
5. The program was designed to ________________ (train) professionals.
6. The submarine _____________ (merge) to avoid detection.
7. The conference was ________________ (national), with attendees from all over the world.
8. His actions were deemed ________________ (responsible) by the committee.
9. The _____________ (portation) system links multiple cities.
10. The project had to be ________________ (start) after a major setback.

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Bonus Question:

Write a short paragraph (4-5 sentences) using at least three words with prefixes from the list above. Underline the words with prefixes.