Question

name____________________ date_____________
prefixes practice 3
the prefixes, in-, im-, non-, un- and dis- can all mean “not” or “the opposite of”
circle the correct prefix to go with the underlined base word in each sentence.
then rewrite the sentence with the new word.

1. cody could not zip his coat. in- im- non- un- dis-

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1. mr. smith is a smoker. in- im- non- un- dis-

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1. tyler needed to connect the wires. in- im- non- un- dis-

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1. jenny is mature for her age. in- im- non- un- dis-

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1. i wanted to wrap the present. in- im- non- un- dis-

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1. alaina sometimes obeys the rules in- im- non- un- dis-

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1. laura thought nelly’s apology was sincere. in- im- non- un- dis-

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1. jake knew it was possible to win the race. in- im- non- un- dis-

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Explanation:

For each sentence, select the prefix that creates a logical opposite meaning, then rewrite the sentence with the new word.

1. The opposite of "zip" (close with a zipper) is "unzip" (open a zipper), using the prefix un-.
2. A person who does not smoke is a "nonsmoker", using the prefix non-.
3. The opposite of "connect" (link together) is "disconnect" (unlink), using the prefix dis-.
4. The opposite of "mature" (grown-up) is "immature" (not grown-up; im- is used before words starting with "m"), using the prefix im-.
5. The opposite of "wrap" (cover) is "unwrap" (uncover), using the prefix un-.
6. The opposite of "obey" (follow rules) is "disobey" (break rules), using the prefix dis-.
7. The opposite of "sincere" (genuine) is "insincere" (not genuine; in- is used here for the opposite meaning), using the prefix in-.
8. The opposite of "possible" (able to happen) is "impossible" (unable to happen; im- is used before words starting with "p"), using the prefix im-.

Answer:

1. Correct prefix: un-

Rewritten sentence: Cody could unzip his coat.

1. Correct prefix: non-

Rewritten sentence: Mr. Smith is a nonsmoker.

1. Correct prefix: dis-

Rewritten sentence: Tyler needed to disconnect the wires.

1. Correct prefix: im-

Rewritten sentence: Jenny is immature for her age.

1. Correct prefix: un-

Rewritten sentence: I wanted to unwrap the present.

1. Correct prefix: dis-

Rewritten sentence: Alaina sometimes disobeys the rules.

1. Correct prefix: in-

Rewritten sentence: Laura thought Nelly's apology was insincere.

1. Correct prefix: im-

Rewritten sentence: Jake knew it was impossible to win the race.