UNIT
4
Lesson 2
Name
Date
Root words plus prefix
Focus
• When prefixes are added to root words,
the meaning of the root word changes.
• de-- means take away, or do the opposite
• im-- means not
• pre-- means before
• co-- means together, with
• en-- means to cause to be
Practice
Write the spelling words made from
these root words.
Copyright © SRA/McGraw-Hill. Permission is granted to reproduce this page for classroom use.
de-, to take away or do the opposite
1. claw
2. rail
im-, not
3. polite
5. perfect
4. mobile
pre, before
6. view
8. school
7. heat
en-, to cause to be
9. force
10. close
Skills Practice 2 • Spelling
11. rich
Word List
1. deflate
2. demerit
3. declaw
4. derail
5. impure
6. immobile
7. imperfect
8. impolite
9. prefix
10. preview
11. preheat
12. preschool
13. costar
14. copilot
15. cohost
16. copay
17. enlarge
18. enclose
19. enrich
20. enforce
Challenge Words
21. dehydrate
22. immature
23. cooperate
UNIT 4 • Lesson 2 21
UNIT
4
Lesson 2
Spelling (continued)
co-, together, with
12. host
14. pay
13. pilot
Apply
Write the base word for each word family.
15. larger
largest
enlarge
16. reheat
preheat
17. impure
purer
18. preview
review
viewer
19. enclose
closed
closing
heater
purest
de-,
im-,
en-,
co-
20. host
21. polite
22. rich
23. rail
Challenge
24. operate
25. hydrate
22 UNIT 4 • Lesson 2
Spelling • Skills Practice 2
Copyright © SRA/McGraw-Hill. Permission is granted to reproduce this page for classroom use.
Add the prefixes de-, im-, en-, or co- to write a spelling word. The
first one is done for you.