Question

name
score
grammar review
compound subjects &
predicates
a simple subject is the main word in the complete subject. a
compound subject has two or more simple subjects with the
same predicate.
in the fall, leaves stop their food - making process.
simple predicate
during the growing season, leaves capture sunlight and
turn carbon dioxide and water into oxygen and sugar.
simple subject
leaves change color as part of their life cycle.
compound predicate
compound subject
shorter days and cooler weather trigger the leaves to
change color.
a simple predicate is the main verb. a compound predicate
contains two or more simple predicates that pair with same
subject.
directions: identify whether the sentences below contain compound subjects (cs), compound predicates (cp), both (b), or neither (n).
ex: cp a chemical called chlorophyl absorbs light energy and creates food from sunlight for the tree
in the spring and summer.

1. ___ in the fall, trees and other plants stop their food - making processes.
2. ___ chlorophyll breaks down in leaves and disappears from the leaves surfaces.
3. ___ this chemical is responsible for creating the green color in leaves.
4. ___ yellow and orange start to become visible in the leaves.
5. ___ yellow and orange have a different molecular structure than chlorophyl and take longer to

break down.

1. ___ maples, sourwoods, and other trees start to create new colors—brilliant reds, purples, and

oranges—with the beginning of autumn.

1. ___ temperature, light, and water supply can all impact this process.
2. ___ early frost weakens and dulls bright red colors.
3. ___ rainy weather and cloudy days tend to increase the intensity of these colors.
4. ___ late in autumn, cells in the leaves and the leaf stems weaken and break.
5. ___ pigments break down, and leaves dry up.
6. ___ oaks and other tree varieties sometimes keep their brown leaves all winter and never shed

them entirely.

1. ___ however, the leaves of evergreen trees remain green all year and stay on their trees for two to

four years.

1. ___ viewing this change in leaf color during the fall has become a popular pastime.
2. ___ many people travel every year and watch the changing of the leaves.

© heather lyon 202

Explanation:

Each sentence is analyzed based on definitions: compound subject (CS)=2+ simple subjects with same predicate; compound predicate (CP)=2+ simple predicates with same subject; both (B)=has CS and CP; neither (N)=has neither.

Answer:

1. CS
2. CP
3. N
4. CS
5. B
6. CS
7. CS
8. CP
9. CS
10. B
11. CP
12. CS
13. CP
14. N
15. CP