Question

complete subjects and predicates
a. identifying complete subjects and predicates
draw a vertical line between the complete subject and the complete predicate in each of the following sentences.
example water power | is an important energy source.

1. petroleum is the most widely used fossil fuel.
2. the production of electricity and steel requires a large amount of coal.
3. the cleanest fossil fuel is natural gas.
4. natural gas heats many homes and factories.
5. solar cells convert the light of the sun into energy.
6. a strong and steady wind is necessary for successful conversion of wind power into energy.
7. tidal power produces a very small amount of energy.
8. the battery - like fuel cell makes electricity chemically.
9. some cities get electricity by burning trash.
10. scientists and engineers are developing better sources of energy for the future.

b. using complete subjects and predicates
on the line to the right of each item, write how each group of words could be used: cs for a complete subject or cp for a complete predicate. then use each group of words in a complete sentence, adding a complete subject or complete predicate as needed.
example bright sunlight cs
bright sunlight streamed through my window this morning.

1. a strong wind
2. floated down the river
3. electric cars
4. wrote a report

Explanation:

1. For "Petroleum | is the most widely used fossil fuel", "Petroleum" is the complete subject as it is what the sentence is about, and "is the most widely used fossil fuel" is the complete predicate which tells something about the subject.
2. "The production of electricity and steel | requires a large amount of coal", "The production of electricity and steel" is the subject and "requires a large amount of coal" is the predicate.
3. "The cleanest fossil fuel | is natural gas", subject - "The cleanest fossil fuel", predicate - "is natural gas".
4. "Natural gas | heats many homes and factories", subject - "Natural gas", predicate - "heats many homes and factories".
5. "Solar cells | convert the light of the sun into energy", subject - "Solar cells", predicate - "convert the light of the sun into energy".
6. "A strong and steady wind | is necessary for successful conversion of wind power into energy", subject - "A strong and steady wind", predicate - "is necessary for successful conversion of wind power into energy".
7. "Tidal power | produces a very small amount of energy", subject - "Tidal power", predicate - "produces a very small amount of energy".
8. "The battery - like fuel cell | makes electricity chemically", subject - "The battery - like fuel cell", predicate - "makes electricity chemically".
9. "Some cities | get electricity by burning trash", subject - "Some cities", predicate - "get electricity by burning trash".
10. "Scientists and engineers | are developing better sources of energy for the future", subject - "Scientists and engineers", predicate - "are developing better sources of energy for the future".

For part B:

1. "a strong wind" is a complete subject (CS). "A strong wind blew through the forest."
2. "floated down the river" is a complete predicate (CP). "The leaf floated down the river."
3. "electric cars" is a complete subject (CS). "Electric cars are becoming more popular."
4. "wrote a report" is a complete predicate (CP). "The student wrote a report."

Answer:

1. Petroleum | is the most widely used fossil fuel
2. The production of electricity and steel | requires a large amount of coal
3. The cleanest fossil fuel | is natural gas
4. Natural gas | heats many homes and factories
5. Solar cells | convert the light of the sun into energy
6. A strong and steady wind | is necessary for successful conversion of wind power into energy
7. Tidal power | produces a very small amount of energy
8. The battery - like fuel cell | makes electricity chemically
9. Some cities | get electricity by burning trash
10. Scientists and engineers | are developing better sources of energy for the future

1. CS, A strong wind blew through the forest.
2. CP, The leaf floated down the river.
3. CS, Electric cars are becoming more popular.
4. CP, The student wrote a report.