1. Prepositional Phrases as adjectives and adverbs
Lesson 3

2. Lesson 3-adjective phrases
A prepositional phrase contains a preposition, the object of the preposition, and any modifiers of the object.

3. Lesson 3-adjective phrases
When prepositional phrases modify or describe a noun or pronoun, they act as adjectives.
Someone from our team identified that mineral.
The surface of that rock is rough.

4. Lesson 3-adjective phrases
Unlike most adjectives, adjective phrases come after the words they modify.
The rock with jagged edges is very old.

5. Lesson 3-adjective phrases
Adjective phrases answer questions such as What kind? or Which one?
We found a rock with a strange fossil.
The rocks on the left are called mica.
(What kind?)
(Which ones?)

6. Lesson 3-adverb phrases
Prepositional phrases can also modify, or tell more about, verbs, adjectives, or adverbs.
When prepositional phrases modify these words, they are called adverb phrases.

7. Lesson 3-adverb phrases
Adverb phrases tell where, how, or when.
Dr. Fleming worked in the laboratory.
He was eager for results.
He stayed late into the night.
(modifies a verb)
(modifies an adjective)
(modifies an adverb)

8. Lesson 2-Guided Practice
Directions: Tell which noun or pronoun each underlined adjective or adverb phrase modifies.
Geologists study the structure of the earth.
They collect information about minerals.
They were dangerous to millions.
Doctors sometimes worked in teams.
Scientists record the distances between the earth’s plates.