ACT English: Knowledge of Language

🤔 What are the basics of Knowledge of Language?

Knowledge of Language questions make up about 15–17% of the ACT English section. They test your ability to use effective language through concise word choice and the correct application of style and tone. These questions will often ask you to improve a piece of writing by substituting or deleting a few words or a sentence. Like every other question type in the English section, they'll refer to an underlined portion within a passage.

🧠 Concepts to Know

✍️ Style and Tone

Tone is the author's attitude toward their audience or subject. Style refers to the specific use of syntax, word choice, and other rhetorical devices that shape how a piece reads. These two concepts work together: the tone of a passage helps determine what style is appropriate.

On the ACT, style and tone questions will often include words like "attitude," "tone," "style," or "feeling" in the question stem. Here's how to approach them:

1. Identify the passage's tone first. Look at the author's word choices and think about their positive or negative connotations. Pay attention to punctuation too (exclamation points, dashes, and question marks can signal attitude).
2. Use the genre as a clue. Science articles tend to be neutral and objective. Humanities and social science passages can lean positive or negative depending on whether the author agrees or disagrees with the topic. Prose fiction varies the most, so read carefully.
3. Check each answer choice against the established tone. The correct answer should be consistent with the voice the author has already set up. Even when a question doesn't explicitly mention tone or style, every answer in the English section should match the passage's existing tone.

🗣 Word Choice

Your word choice should be appropriate to the audience and purpose of the passage. One of the most important skills here is understanding connotations, the positive, negative, or neutral associations a word carries beyond its dictionary definition. Watch out for words that seem like synonyms but carry different shades of meaning. For example, curious and nosy both describe interest in something, but nosy has a negative connotation.

To approach word choice questions:

1. Read the full sentence and try placing your own word in the blank.
2. Look through the answer choices and find the one closest in meaning to your word.
3. Double-check that your choice fits the context and tone of the surrounding sentences.

🥱 Redundancy and Clarity

On the ACT, the best answer choice often says what needs to be said in fewer words without losing meaning. Longer phrasing doesn't make writing more sophisticated if it just repeats information. Watch for these common redundancy traps:

• Repeated words or ideas (saying the same thing twice in different words)
• Unnecessary information that doesn't add anything new
• Synonyms stacked together (like "each and every" or "first and foremost")

If an answer choice includes a redundancy, eliminate it.

Clarity matters just as much. The correct answer should keep the author's main idea clear and logically organized. Make sure your choice follows a logical path of reasoning and sticks to the author's point without introducing confusion.

⭐️ Tips & Tricks

• Above all, look for the answer that creates the simplest and most effective way to communicate the author's message while maintaining style and tone.
• "NO CHANGE" can absolutely be the right answer. Don't automatically write it off.
• Read the whole sentence and the surrounding passage, not just the underlined phrase you're replacing.
• Always plug your answer back into the original sentence to confirm it's grammatically correct and fits the passage.
• Process of elimination is your best friend. Cross out answers you know are wrong before choosing.

🤔 Practice

The Mysterious Cuttlefish

A few months ago, a field trip to my local aquarium sparked 1. a fascination with my new favorite marine animal the cuttlefish. I entered the aquarium with the sole intention of spending my entire day at the far end of the aquarium, parked in front of the shark tanks. But while I was wandering back 2. towards the big shark tanks at the far end of the aquarium, I paused for a moment by the cuttlefish. They were strange creatures, like squat little squids with intricate markings, looking like something from a science-fiction story. I resolved to learn as much as I could about them as soon as I got home 3. and could educate myself about them.

Question #1

A. NO CHANGE

B. a compulsion to

C. an intrigue in

D. a tendency towards.

This is a word choice question asking you to pick between phrases that seem similar but carry different connotations. Since "NO CHANGE" is an option, start by asking: Is there anything wrong with the original phrase? "A fascination with" is grammatically correct, conveys a clear meaning, and fits the context without redundancy.

Now check the other options. "A compulsion to" (B) implies the author feels forced, which doesn't match the passage's accidental discovery. "An intrigue in" (C) sounds overly mysterious and doesn't fit the tone. "A tendency towards" (D) suggests the author is only leaning toward liking the cuttlefish, but the passage makes clear the author's mind is already made up. The correct answer is A. NO CHANGE.

Question #2

F. NO CHANGE

G. toward the far end of the aquarium,

H. toward the big shark tanks,

J. there,

This is a redundancy question. The previous sentence already tells us the author planned to spend the day "at the far end of the aquarium" near "the shark tanks." The underlined phrase repeats both details. Choice G repeats "the far end," and H repeats "shark tanks." Only J. there, avoids restating information the reader already knows.

Question #3

A. NO CHANGE

B. and could learn more about them.

C. and had the opportunity to learn more at home.

D. DELETE the underlined portion (ending the sentence with a period)

Another redundancy question. The author already says they wanted to "learn as much as I could about them" and "as soon as I got home." The underlined portion just restates both ideas. Choices B and C repeat the same information in slightly different words. The best answer is D, which removes the redundancy entirely and lets the sentence end cleanly.

Practice Text and Questions from A-List Education

The most important takeaway for Knowledge of Language questions: the shorter answer is often the right one. If it's concise, matches the author's tone and style, and fits grammatically, it's probably correct. The answer choices can look very similar at first glance, but with practice you'll get better at spotting the difference between an answer that seems right but is too wordy or slightly off in tone and one that communicates the idea cleanly.