AP® English Language and Composition review sheet from Aim for Five (aimforfive.com/lang/units/7/7-6)
Unit 7 · Topic 7.6
7.6 Punctuation, grammar and emphasis
Standard grammar keeps writing clear, and punctuation shows how ideas connect. Colons, semicolons, dashes, parentheses and other marks can clarify, organize, emphasize or add information, and design features like italics can stress a word. This topic covers both following the conventions and analyzing how writers use them.
Key terms
- semicolon
- colon
- dash
- parentheses
- italics
- conventions
Why conventions matter
Conventions are the shared rules of grammar, usage and punctuation. They let readers focus on your ideas instead of decoding your sentences. On the essays, errors only cost you if they get in the way of meaning, but writing so full of errors that it interferes with communication can't earn the top score in the evidence-and-commentary row.
In multiple choice, writing questions test conventions indirectly: a choice with a comma splice, a fragment or a misused colon is almost always wrong, even when the real question is about emphasis or clarity.
What each mark does
| Mark | Main job | Example |
|---|---|---|
| Comma | Separates items, sets off introductory and extra elements | After the vote, the board adjourned. |
| Semicolon | Joins closely related independent clauses; separates list items that contain commas | The vote passed; the debate did not end. |
| Colon | After a complete clause, introduces an explanation, list or quotation | The board had one choice: delay the vote. |
| Dash | Sets off an interruption or adds emphasis at the end | The plan had one flaw—cost—and it was serious. |
| Parentheses | Adds a quieter side note | The board (all seven members) agreed. |
| Hyphen | Joins words into one modifier | a well-known study |
| Quotation marks | Show exact words; can signal irony or doubt | the so-called solution |
| End marks | Statement, question or exclamation | Who benefits? |
Punctuation as a rhetorical choice
Writers pick marks for effect, not just correctness. A dash feels more abrupt and emphatic than a comma. Parentheses feel like a whisper. A semicolon suggests that two ideas are tightly linked. A rhetorical question invites the reader to supply the answer.
Samuel Johnson's 1755 letter to Lord Chesterfield uses semicolons to separate parallel clauses that already contain commas: "it has been delayed till I am indifferent, and cannot enjoy it; till I am solitary, and cannot impart it; till I am known, and do not want it." The semicolons keep the three parts distinct, so each lands as its own complaint.
Franklin D. Roosevelt's First Inaugural Address (1933) uses a dash to stop and define a key phrase: "the only thing we have to fear is fear itself—nameless, unreasoning, unjustified terror." The pause after "itself" makes the definition feel like an emphatic afterthought.
Italics and boldface
Design features can create emphasis too. In "Civil Disobedience" (1849), Thoreau writes "It does not keep the country free. It does not settle the West. It does not educate." In the original, each "It" (meaning the government) is printed in italics. The italics stress the subject, insisting that government itself deserves no credit for what the people achieved.
In your own timed essays, emphasis should come from word choice and sentence structure, not from typography.
Worked examples
Try each one yourself first, then open the solution.
- Example 1
Choosing punctuation for clarity and emphasis
Practice draft sentence (written for this practice set): The council's report recommended one change___ a second bus route to the east side. Which choice correctly completes the sentence and emphasizes the recommendation? (A) ; (B) : (C) , and (D) no punctuation
Show the solutionHide the solution
- Step 1: Check what comes before the blank: "The council's report recommended one change" is a complete independent clause.
- Step 2: Check what comes after: "a second bus route to the east side" is a phrase, not a clause, and it explains what the "one change" was.
- Step 3: A semicolon (A) must join two independent clauses, and the second part isn't one.
- Step 4: A colon (B) follows a complete clause and introduces an explanation, which is exactly this situation. It also points the reader forward, which emphasizes the recommendation.
- Step 5: (C) makes it sound as if the report recommended two separate things instead of explaining the one change, and (D) runs the phrase into the sentence so the reader can't tell where the explanation starts.
Answer: (B), the colon: "The council's report recommended one change: a second bus route to the east side."
Common mistakes
- Using a semicolon before a phrase or list. A semicolon joins independent clauses (or separates complex list items).
- Putting a colon after an incomplete clause, as in "The ingredients are: flour and sugar." The words before a colon should be able to stand alone.
- Joining two sentences with only a comma (a comma splice).
- Analyzing punctuation without saying what it does for meaning or tone. "Johnson uses semicolons" isn't analysis; say what the separation emphasizes.
On the exam
- For conventions questions, read the sentence aloud in your head with each choice. Then check the rule: what's on each side of the mark?
- In rhetorical analysis, punctuation is worth discussing only when it clearly shapes emphasis or tone in a key moment. Tie it to purpose.
Connected topics
Videos
Check yourself
3 questions on 7.6 Punctuation, grammar and emphasis. Pick an answer to see if you got it, and why.
Francis Bacon, "Of Studies," from Essays (1625 edition); the opening of the essay, in a modernized-spelling text that keeps some older forms: "proyning" means pruning, "contemn" means scorn, "conference" means conversation, and "maketh" means makes.
In the sentence "They perfect nature, and are perfected by experience: for natural abilities are like natural plants, that need proyning, by study," the colon primarily serves to
In the sentence "Reading maketh a full man; conference a ready man; and writing an exact man," the semicolons mainly serve to
Ralph Waldo Emerson, "Self-Reliance," from Essays: First Series (1841). Bracketed ellipses mark omitted text.
In paragraph 4, the dashes around "'Ah, so you shall be sure to be misunderstood'" primarily serve to
0 of 3 answered