Question

a prefix is a word part that is added to the front of a base word to change the meaning of that word. more than one prefix may mean the same thing.
examples:
the prefixes dis-, non-, and un-
mean
ot\ or \the opposite of\ dis + approve = disapprove (not approve)
non + toxic = nontoxic (not toxic)
un + happy = unhappy (not happy)
a. add the correct prefix to the front of each base word to make a new word.
1 zip ____ dis- non- un-
2 honest __ 6. pleasant __
3 fat __ 7. stop __

1. agree __ 8. respect __
2. ripe __ 9. fair __
3. obey ____

b. use the words you made above to complete each sentence.

1. haley knew it was ____ to copy her sister’s homework.
2. luke could not ____ his jacket.
3. claire ate some ____ yogurt before going for a run.
4. gloria did not tolerate ____ from anyone.
5. phil worked ____ on his project.
6. cameron and mitchell ____ about everything.
7. jay had an ____ time at the party.
8. manny would never ____ his mother.
9. lily ate the banana even though it was still ____.
10. alex felt her teacher was being ____.

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Answer:

Part A: Adding Prefixes

1. zip

To make a word meaning "not zip" or the opposite, we use the prefix un- (since un- is used for verbs/adjectives to mean opposite, and "zip" is a verb; "unzip" means to open by unzipping, which is the opposite of zipping). So, \( \text{un-} + \text{zip} = \text{unzip} \).

2. honest

The prefix dis- is used here because "dishonest" means "not honest". So, \( \text{dis-} + \text{honest} = \text{dishonest} \).

3. fat

To mean "not fat" (thin), we use un- (for adjectives, un- can form the opposite). So, \( \text{un-} + \text{fat} = \text{unfat} \) (though "unfat" is less common, contextually it's the opposite; alternatively, "non-fat" is also used, but un- is more for adjectival opposites here). Wait, actually, "non-fat" (using non-) is more standard for "not containing fat" (like non-fat yogurt). Let's correct: For "fat" as in "containing fat", non- is better. So \( \text{non-} + \text{fat} = \text{nonfat} \).

4. agree

The opposite of "agree" is "disagree", so \( \text{dis-} + \text{agree} = \text{disagree} \).

5. ripe

The opposite of "ripe" (ready) is "unripe" (not ready), so \( \text{un-} + \text{ripe} = \text{unripe} \).

6. pleasant

The opposite of "pleasant" (nice) is "unpleasant" (not nice), so \( \text{un-} + \text{pleasant} = \text{unpleasant} \).

7. stop

The opposite of "stop" (to halt) is "unstop" (to unblock or not stop), but more commonly, "dis- doesn't fit, "un- is used for verbs. Wait, "unstop" means to remove a stop, so \( \text{un-} + \text{stop} = \text{unstop} \).

8. respect

The opposite of "respect" is "disrespect", so \( \text{dis-} + \text{respect} = \text{disrespect} \).

9. fair

The opposite of "fair" (just) is "unfair", so \( \text{un-} + \text{fair} = \text{unfair} \).

10. obey

The opposite of "obey" is "disobey", so \( \text{dis-} + \text{obey} = \text{disobey} \).

Part B: Completing Sentences

1. Haley knew it was \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ to copy her sister’s homework.

Copying homework is "dishonest" (not honest). So fill with dishonest.

2. Luke could not \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ his jacket.

To open the jacket (opposite of zip), use unzip. So fill with unzip.

3. Claire ate some \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ yogurt before going for a run.

Yogurt without fat is "nonfat". So fill with nonfat.

4. Gloria did not tolerate \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ from anyone.

Tolerate means to allow, so "disrespect" (not respecting) is what she won't tolerate. Fill with disrespect.

5. Phil worked \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ on his project.

"Unfat" doesn't fit. Wait, maybe "unfair" is not. Wait, maybe "non-stop"? No, part A words: Wait, part A words are unzip, dishonest, nonfat, disagree, unripe, unpleasant, unstop, disrespect, unfair, disobey. Wait, "worked unstop" (continuously) – "unstop" as in not stopping. So fill with unstop (though "non-stop" is common, but from part A, we have "unstop").

6. Cameron and Mitchell \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ about everything.

To have opposite opinions, "disagree". So fill with disagree.

7. Jay had an \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ time at the party.

"Unpleasant" (not pleasant) fits if the time was bad. So fill with unpleasant.

8. Manny would never \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ his mother.

To not follow her rules, "disobey". So fill with disobey.

9. Lily ate the banana even though it was still \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.

Not ripe, so "unripe". Fill with unripe.

10. Alex felt her teacher was being \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.

Not fair, so "unfair". Fill with unfair.

Final Answers (Part A)

1. unzip
2. dishonest
3. nonfat
4. disagree
5. unripe
6. unpleasant
7. unstop
8. disrespect
9. unfair
10. disobey

Final Answers (Part B)

1. dishonest
2. unzip
3. nonfat
4. disrespect
5. unstop
6. disagree
7. unpleasant
8. disobey
9. unripe
10. unfair