UNIT 1 GRAMMAR
Compound and
Complex Sentences
A simple sentence expresses one complete thought. A compound
sentence contains two simple sentences joined by a comma and a
connecting word such as and, but, or or. A complex sentence contains
a simple sentence combined with a group of words that cannot stand
alone as a sentence.
Simple sentence: The young girl was scared.
Compound sentence: The young girl was scared, and she
hugged her brother.
Complex sentence: When her brother cried, she held him tight.
A Read each sentence. Write compound if the sentence is a compound
sentence. Write complex if the sentence is a complex sentence.
1.
2.
3.
4.
5.
She looked outside, and she saw a fire.
As the fire neared, she began to worry.
She lifted her brother, and she carried him away.
The fire ended, but the girl was still afraid.
When her older brother came, she felt safe.
Read each sentence. Write Yes if the underlined words can stand
alone to make a sentence. Write No if they cannot stand alone.
6.
7.
8.
9.
10.
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The girl seemed calm, but she was still upset.
When the danger was over, she began to relax.
Life on the prairie was hard, and it was often lonely.
The girl lived on a farm, but she preferred the city.
After she moved to the farm, she learned how to sew.
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UNIT 1 GRAMMAR
B Write the word you would use (and, or, or but) to join the following
simple sentences to form compound sentences.
1.
2.
3.
4.
5.
My brother is young. He is very strong.
I love my father. He loves me.
On weekends we go the park. We stay inside.
I don’t mind staying inside. I prefer to go out.
I like the park. I enjoy seeing my friends there.
C Complete each sentence by adding a group of words from the box.
Write each complete sentence and tell if it is compound or complex.
Jenny likes games
and sometimes she plays alone
After she played with her dolls
and she likes to build dollhouses
Anna wants to build a dollhouse
6.
7.
8.
9.
10.
Karen is a hard worker, _____.
_____, but she likes to play them outside.
When she gets older, _____.
Sometimes Nira plays with her friends, _____.
_____, Roberta took a nap.
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41
UNIT 1 GRAMMAR
Review and Assess
Write the word in ( ) that completes each sentence.
1.
2.
3.
4.
5.
(After, But) finishing my chores, I ate breakfast.
I ate an egg, (since, and) I drank some milk.
I made eggs for my brother, (but, or) he did not eat them.
(Since, And) he was still hungry, I gave him cereal.
While he read a book, (and, I) washed the dishes.
Write the letter of the word that completes each sentence.
6. The birds sang, _____ then they flew away.
A and
B or
C since
D while
7. Was that a prairie dog, _____ was that a coyote?
A since
B or
C but
D while
8. I was looking for prairie dogs, _____ I couldn’t find any.
A since
B or
C but
D while
9. _____ the sun began to set, I heard a pack of wolves.
A And
B Or
C But
D When
10. The wolves cried all night, _____ I was afraid.
A and
B or
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C since
D soon
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