Prefixes2(CLB 5+) Lunch & Learn English Online Inc.

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1
AffixesPart 1:
Prefixes2
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2. 2
Lesson Vocabulary!
Term Definition
root the part of a word that has the main meaning and that its other forms are based on; a
word that other words are formed from

3. agenda
1. What is an affix?
2. The prefixes: over/under, pre/post, re, dis,
3. Practice the prefixes
4. Homework
5. Questions
3

4. What is an affix?
Letters added to the root of a word that
changes the meaning of the word.
place
I was in the right place at the right time,
and I won 100 dollars!
place: a particular position, point or
area.
4
https://pixabay.com/photos/books-pages-story-stories-notes-1245690/ shared under CC0

5. What is an affix?
Letters added to the root of a word that
changes the meaning of the word.
displace
A heavy object displaces water.
displace: to move out of position
5
https://pixabay.com/photos/books-pages-story-stories-notes-1245690/ shared under CC0

6. What is an affix?
Letters added to the root of a word that
changes the meaning of the word.
displacement
The flooding caused the displacement
of many people.
displacement: the state of being moved
from a place.
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https://pixabay.com/photos/books-pages-story-stories-notes-1245690/ shared under CC0

7. What is an affix?
There are two types of affixes
A ____ goes before the root.
A ____ goes after the root.
place root (no affix)
displace prefix
displacement prefix and suffix
7
https://pixabay.com/photos/books-pages-story-stories-notes-1245690/ shared under CC0

8. What is an affix?
There are two types of affixes
A prefix goes before the root.
A suffix goes after the root.
place nothing
displace prefix
displacement prefix and suffix
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https://pixabay.com/photos/books-pages-story-stories-notes-1245690/ shared under CC0

9. https://pixabay.com/photos/books-bookstore-book-reading-shop-1204038/ shared under CC0
theprefixes:
over/under, pre/post, re, dis,
https://pixabay.com/photos/books-bookstore-book-reading-shop-1204038/ shared under CC0

10. Prefixes:
1. People who are underage cannot vote in Canada.
10
The prefixes: over/under
Tell me what this sentence means:

11. Prefixes:
1. People who are underage cannot vote in Canada.
underage: not old enough, literally below (less than) a certain age.
11
The prefixes: over/under
Tell me what this sentence means:

12. Prefixes:
2. The meals at this restaurant are so overpriced.
12
The prefixes: over/under
Tell me what this sentence means:

13. Prefixes:
2. The meals at this restaurant are so overpriced.
overpriced: too expensive, literally over (above) a reasonable price.
13
The prefixes: over/under
Tell me what this sentence means:

14. Prefixes:
3. He always overreacts to criticism.
14
The prefixes: over/under
Tell me what this sentence means:

15. Prefixes:
3. He always overreacts to criticism.
overreacts: to respond in a way that is more extreme than necessary.
15
The prefixes: over/under
Tell me what this sentence means:

16. Let’s practice!
Use these words in a sentence.
Underage
Overreact
Overpriced
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https://pixabay.com/photos/books-study-literature-learn-stack-2158737/ shared under CC0
https://pixabay.com/illustrations/artificial-intelligence-brain-think-4389372/ shared under CC0

17. Prefix
Over: more than/above
Under: less than/below
Can you think of words that use these prefixes?
17
The prefixes: over/under

18. Prefix
overkill oversight overreact
overcrowded oversimplify oversee
overseas overcast overtime overload
18
The prefixes: over/under

19. Prefix
underwater understudy underwear
underdog underfoot undercooked
underground understand underline
undergraduate
19
The prefixes: over/under

20. Prefix
Tell me what this sentence means.
4. Their baby was born 2 months premature.
20
The prefixes: pre and post

21. Prefix
4. Their baby was born 2 months premature.
This sentence means that the baby was born 2 months too early.
mature: fully developed
premature: before it is fully developed
21
The prefixes: pre and pro

22. Prefix
Tell me what this sentence means.
5. The post game music is always good.
22
The prefixes: pre and post

23. Prefix
5. The post game music is always good.
This sentence means that the music that follows the game is always good.
game:something that is played between opposing teams/players
post game: after the game
23
The prefixes: pre and pro

24. Prefix
pre: before
post: after
Can you think of some examples of words using these prefixes?
24
The prefixes: pre and post

25. Prefix
preterm premade prefix
preschool preview predict
preheat preset premix preface
Can you use one of these words in a sentence?
25
The prefixes: pre and post

26. Prefix
postpone postnatal postmortem
postscript p.m. (post meridian)
postdate postgraduate
Can you use one of these words in a sentence?
26
The prefixes: pre and post

27. Prefix
The prefixes: re, dis
Tell me what this sentence means:
1. Can you rephrase the question?
I don’t understand.
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https://pixabay.com/photos/books-pages-story-stories-notes-1245690/ shared under CC0
https://pixabay.com/photos/books-study-literature-learn-stack-2158737/ shared under CC0
https://pixabay.com/illustrations/artificial-intelligence-brain-think-4389372/ shared under CC0

28. Prefix
The prefixes: re, dis
Tell me what this sentence means:
1. Can you rephrase the question? I
don’t understand.
rephrase: to say or write something in a
different way.
28
https://pixabay.com/photos/books-pages-story-stories-notes-1245690/ shared under CC0
https://pixabay.com/photos/books-study-literature-learn-stack-2158737/ shared under CC0
https://pixabay.com/illustrations/artificial-intelligence-brain-think-4389372/ shared under CC0

29. Prefix
The prefixes: re, dis
Tell me what this sentence means:
2. The magician made that rabbit
disappear!
29
https://pixabay.com/photos/books-pages-story-stories-notes-1245690/ shared under CC0
https://pixabay.com/photos/books-study-literature-learn-stack-2158737/ shared under CC0
https://pixabay.com/illustrations/artificial-intelligence-brain-think-4389372/ shared under CC0

30. Prefix
The prefixes: re, dis
Tell me what this sentence means:
2. The magician made that rabbit
disappear!
disappear: when a person or thing goes
someplace where they can’t be seen.
30
https://pixabay.com/photos/books-pages-story-stories-notes-1245690/ shared under CC0
https://pixabay.com/photos/books-study-literature-learn-stack-2158737/ shared under CC0
https://pixabay.com/illustrations/artificial-intelligence-brain-think-4389372/ shared under CC0

31. Prefix
re: again
dis: the opposite, apart
Can you think of words that use these prefixes?
31
The prefixes: re, dis

32. Prefix
re-examine react revamp
recover reconnect revisit
regain resell rewrite remarry
Can you use one of these words in a sentence?
32
The prefixes: re, dis

33. Prefix
discover disconnect
dislocate displace disadvantage
discard disobey disable disagree
Can you use one of these words in a sentence?
33
The prefixes: re, dis

34. Summary
The prefix:
under means below or less than.
over means above or more than.
pre means before
post means after
re means again
dis means the opposite or apart.
34
Prefixes change the meaning of the word by adding
letters to the beginning of the word.

35. https://pixabay.com/photos/books-bookstore-book-reading-shop-1204038/ shared under CC0
Let’spractice!
https://pixabay.com/photos/books-bookstore-book-reading-shop-1204038/ shared under CC0

36. 36
1. The sky is ________________ today. It might rain.
2. My dad was in the military __________ in England.
3. This train is always ___________________.
4. If you work more than 8 hours, you should get ____________ pay.
Fill in the missing word:
overcast overtime
overcrowded overseas
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37. 37
1. The sky is overcast today. It might rain.
2. My dad was in the military overseas in England.
3. This train is always overcrowded.
4. If you work more than 8 hours, you should get overtime pay.
Fill in the missing word:
overcast overtime
overcrowded overseas
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38. 38
5. Small children are often __________ in preschool.
6. Her son is in university getting an ____________ degree.
7. This chicken is ______________ tonight.
8. The subway is ________________.
Fill in the missing word:
undergraduate underground
underfoot undercooked
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39. 39
5. Small children are often underfoot in preschool.
6. Her son is in university getting an undergraduate degree.
7. This chicken is undercooked tonight.
8. The subway is underground.
Fill in the missing word:
undergraduate underground
underfoot undercooked
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9. The affix that goes in front of the root word is called a _______
10. _________ meals are convenient but expensive.
11. _________ the oven before you put the turkey in.
12. _________ the weather channel isn’t very good at ______ the temperature.
Fill in the missing word:
premade preheat
predicting prefix
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41. 41
13. _________ degrees in many universities can be very expensive.
14. She always includes a __________ at the end of her letters.
15. We will have to _____________ our vacation again this year.
Fill in the missing word:
postscript postgraduate
postpone
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42. 42
16. It has taken a long time to _________ from Covid.
17. New Year’s is a good time to ________ on the previous year.
18. Can you _________ those wires please. The internet isn’t working.
29. I think you should _______ your decision to quit your job.
Fill in the missing word:
reconsider reflect
recover reconnect
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20. Grocery prices these days are a _________!
21. ___________ him while I eat his french fries!
22. I know you ______ with me, but I am telling you the facts.
23. The Indigenous artifacts on _________ at the museum are interesting.
Fill in the missing word:
disagree disgrace
distract display
https://pixabay.com/photos/books-pages-story-stories-notes-1245690/ shared under CC0

44. https://pixabay.com/photos/books-bookstore-book-reading-shop-1204038/ shared under CC0
Let’spractice!
https://pixabay.com/photos/books-bookstore-book-reading-shop-1204038/ shared under CC0

45. 45
Match the prefix and the root 
1. ___script 4. ___polite 7. ___connect 10. ___place
2. ___age 5. ___patient 8. ___complete 11. ___able
3. ___fix 6. ___visit 9. _responsible 12. ___regular
dis over in im
pre under in ir
post re non un

46. Questions?
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47. Homework
47
Write sentences using each of these prefixes:
under
over
pre
post
re
dis

48. HOMEWORK: The details:
1. Submit your homework to Lori on Skype: live:loramoren
2. After class, you have until the 11:59 pm the next day to submit.
3. I will correct the homework and offer feedback. 

49. Language Contest
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Sources:
Wall, Natashya, (powerpoint) “Affixes – part 1, Prefixes”
https://www.esl-lounge.com/student/vocabulary/3v27-prefixes.php

51. Thankyou!
Lori Morency
Skype: live:loramoren
livelearn.ca