Practice Makes Perfect: Exploring Grammar - Muschla Gary Robert 2010

Body System
Prepositional phrases
Prepositions, conjunctions, and interjections

Your body has several systems. These systems are made up of organs that you need to live. One of these systems is made up of your heart, lungs, blood, and blood vessels. What is the name of this body system?

To answer the question, read each sentence below. Find the prepositional phrase. In the parentheses after each sentence, a letter is called for. Find the letter in the prepositional phrase, and write the letter in the space above its sentence number at the bottom of the page. The first one is done for you.

1. You can think of your heart as a pump. (ninth letter)

2. Your heart is divided into four parts, or chambers. (fourth letter)

3. Your heart pumps blood throughout your body. (fifth letter)

4. Your heart is always working, even during sleep. (fourth letter)

5. Blood carries oxygen to your cells. (ninth letter)

6. Your blood gets oxygen in your lungs. (sixth letter)

7. An average adult’s heart beats about seventy times each minute. (fifth letter)

8. Regular exercise is good for your heart. (fourth letter)

9. During exercise, your heart beats faster. (eleventh letter)