All questions
Question 1
When wildfire smoke drifts into a city, tiny particles called PM2.5 can slip deep into the lungs. Doctors warn that these particles may irritate airway tissue, which can trigger coughing and make asthma worse. PM2.5 is measured in very small amounts, so even a small rise can matter. During heavy-smoke days, health agencies tell people to limit outdoor exercise and wear a well-fitted mask.
How does the word irritate affect the meaning and tone of the paragraph?
- It suggests the particles are harmless and creates a relaxed, cheerful tone.
- It gives a mild but negative sense of discomfort, which supports a cautious, health-warning tone. (correct answer)
- It implies the particles completely destroy lung tissue, creating an extreme, panicked tone.
- It is a technical measurement term that makes the paragraph sound mathematical, not medical.
Explanation: To "irritate" tissue means to bother or inflame it, a real but not extreme harm. That fits the paragraph's careful warning about coughing and asthma and its advice to limit exercise, so the word supports a cautious, health-warning tone, making Choice B correct. Choice A calls the particles harmless, Choice C overstates it as total destruction, and Choice D treats "irritate" as a math term, none of which fits.
Question 2
Read the excerpt from a science news site:
"Satellite data show that the glacier is retreating, or slowly pulling backward, at about 30 meters per year. As the ice front moves back, new rock is exposed. Meltwater streams then carry sediment into nearby lakes."
Why might the author choose the word retreating instead of "melting"?
- Because retreating is figurative and helps readers picture the ice front pulling backward, not just turning to water. (correct answer)
- Because retreating is more precise than "melting" and tells readers exactly how much sediment the meltwater carries.
- Because retreating sounds more urgent than "melting" and warns readers that the glacier could vanish within a single year.
- Because retreating is a formal term and "melting" is a casual word that scientists would never use in serious writing.
Explanation: The word "retreating" usually describes an army pulling back, so using it for a glacier is figurative language. It helps you picture the whole ice front sliding backward across the land, not just ice turning into water. That vivid image is exactly what "melting" would miss, which is why picturing the ice front pulling backward is the best answer. The choice about precise sediment amounts is wrong because "retreating" describes movement, not how much sediment the streams carry—the passage gives that detail separately. The choice about urgency is wrong because nothing in the excerpt claims the glacier will disappear in a year; it moves only about 30 meters annually. The choice about formality is wrong because "melting" is a normal, accepted science word, and writers do use it, so calling it something scientists never use is false. Only the figurative-image answer explains why the author picked "retreating" over "melting."
Question 3
Volunteers will restore the creek bank by planting native grasses and removing litter. Organizers say the roots will hold the soil in place, which reduces erosion during storms. The group hopes the project will bring back insects and birds that have been missing in recent years.
How does the connotation of the word restore affect the meaning and tone?
- It suggests improvement and healing, which creates a hopeful, positive tone about the project. (correct answer)
- It suggests only patching a spot temporarily, which creates a doubtful, unconvinced tone about the work.
- It suggests changing the creek into something new, which creates an excited but uneasy tone about the future.
- It suggests strictly protecting the creek from people, which creates a firm, controlling tone about the rules.
Explanation: Connotation is the feeling a word carries beyond its dictionary meaning. "Restore" means bringing something back to its healthy, original condition, which matches planting grasses and welcoming back wildlife. That healing sense gives the announcement a hopeful, positive tone, so the choice about improvement and healing is the best answer. The choice about only patching a spot temporarily misreads "restore" as a quick fix, but restoring means fully bringing back, not a doubtful patch. The choice about changing the creek into something new confuses "restore" with "transform"; restoring returns something to how it was rather than making it different. The choice about strictly protecting the creek from people adds a controlling meaning the word never carries and ignores the caring, welcoming purpose described. Only the first choice captures the word's positive, hopeful feeling.
Question 4
Volunteers worked to restore the wetland by replanting native grasses and pulling out invasive reeds. The goal is to improve water quality and reduce flooding. It also provides a home for local birds and frogs.
How would replacing restore with the word repair most likely change the tone?
- It would make the tone more scientific, since repair sounds like a technical ecology term.
- It would make the tone more negative, since repair suggests the wetland is completely worthless.
- It would make the tone a bit more everyday and practical, since restore sounds broader and more hopeful. (correct answer)
- It would give the tone a more urgent, alarmed feeling, since repair suggests the wetland is in danger.
Explanation: Word choice shapes tone through connotation. "Repair" is an ordinary, practical word for fixing something, while "restore" suggests bringing back something whole and healthy, which sounds broader and more hopeful. Choice C describes that shift, so it is correct. Choice A treats "repair" as a science term, Choice B claims it means "worthless," and Choice D reads alarm into it, but none of these match the everyday, practical feeling the word carries.
Question 5
Archaeologists found that the ancient city's water system was an engineering marvel. Stone channels carried rainwater into tanks underground. The slopes were angled with care, so the water kept moving without any pumps. This design cut down on flooding. It also helped the city get through long dry seasons.
What is the effect of the phrase engineering marvel on the tone?
- It creates an admiring tone by praising the water system as impressive and skillfully built. (correct answer)
- It creates a critical tone by hinting that the water system was clumsy and barely worked at all.
- It creates a neutral tone by simply naming the water system without judging how well it worked.
- It creates a surprised tone by suggesting the water system worked far better than anyone expected.
Explanation: A marvel is something that fills people with wonder, so calling the water system an "engineering marvel" clearly praises how clever and well-built it was. That word choice gives the writing an admiring tone, which is why the admiring answer is correct. The critical answer flips praise into a complaint, but nothing in the phrase says the system was clumsy or barely worked. The neutral answer claims the phrase only names the system without judging it, yet "marvel" is a strong word of approval, not a plain label. The surprised answer focuses on the system beating expectations, but "marvel" expresses admiration for the design itself, not shock that it worked. Only the admiring choice matches what the praise-filled wording actually does to the tone.
Question 6
The health department urged residents to take precautions. These included drinking water and checking on older neighbors. Officials said hospitals often see more cases of heat exhaustion when the nights stay hot. Cooling centers will stay open until 9 p.m.
How does the word precautions affect the meaning and tone of the excerpt?
- It points to sensible, practical safety steps, and it creates a serious but calm and controlled tone. (correct answer)
- It stresses how sudden and unexpected the danger is, and it creates an urgent, alarmed tone.
- It suggests the risk has mostly passed already, and it creates a relaxed, reassuring tone.
- It promises that following the steps will keep everyone completely safe, creating a fully confident tone.
Explanation: The word precautions means careful steps taken ahead of time to prevent harm. That framing treats the health advice as sensible and practical, and it gives the passage a serious but calm, in-control tone, so the choice describing sensible safety steps and a calm, controlled tone is correct. The choice about a sudden, alarming danger is wrong because precautions are planned, steady measures, not a panicked reaction, so the tone is not urgent or alarmed. The choice claiming the risk has passed misreads the word, since precautions point to a danger still ahead, not a relaxed all-clear. The choice about keeping everyone completely safe overstates things, because precautions reduce risk but never promise total safety, so a fully confident tone does not fit. Only the calm, sensible reading matches both the meaning of the word and the passage's steady, cautious feel.
Question 7
Read the excerpt from a school board update:
“Last year’s attendance policy was dismantled after families complained it punished students who were sick. A new policy will focus on support, including make-up work plans and check-ins with counselors.”
What does the word dismantled imply about what happened to the policy, and how does it shape the tone?
- It implies the policy was gently adjusted in a few small ways, creating a cheerful and celebratory tone about the changes.
- It implies the policy was taken apart deliberately and piece by piece, creating a firm but not overly emotional tone. (correct answer)
- It implies the policy was destroyed in a burst of anger, creating a dramatic and outraged tone toward the families.
- It implies the policy was clearly improved and strengthened, creating an approving tone toward the old rules.
Explanation: "Dismantled" literally means to take something apart carefully, piece by piece, the way you would take apart a machine or a structure. Applied to a policy, it suggests the board deliberately and methodically removed each problematic part. That controlled, intentional action creates a firm but not overly emotional tone—the change sounds reasoned, not rushed or angry.
The option saying the policy was gently adjusted misreads the word: dismantling means fully taking apart, not making small tweaks, so a cheerful, celebratory tone doesn't fit. The option saying it was destroyed in anger overstates the emotion; "dismantled" signals careful, deliberate action, not an outraged outburst, and the excerpt's calm explanation of a new supportive plan matches that. The option saying the policy was improved reverses the meaning—"dismantled" means taken apart, not made better, so an approving tone toward the old rules contradicts the text. Only "taken apart deliberately, piece by piece" captures the systematic action and the measured tone the word creates.
Question 8
During the heat wave, reservoir levels plummeted by 12 percent in just two weeks. The sudden shortage worried city leaders, who feared the supply might not last through the summer. Officials asked residents to limit lawn watering and to check for leaks in their sprinklers and pipes.
How does the word plummeted affect the meaning and tone compared with a word like "decreased"?
- It suggests a sudden, steep drop and creates a more urgent, concerned tone. (correct answer)
- It suggests a gradual, minor dip and creates a calmer, more reassuring tone.
- It suggests the water level rose sharply and creates a hopeful, relieved tone.
- It suggests an exact, measured change and creates a neutral, technical tone.
Explanation: To "plummet" is to fall fast and far, while "decreased" only tells you something went down. Picking "plummeted" stresses how quickly and sharply the water dropped, which fits the worried, urgent mood of officials asking people to save water. The choice about a sudden, steep drop and urgent tone captures this, so it is correct. The choice about a gradual, minor dip and a calmer tone is the opposite of "plummet," which signals speed and severity, not gentleness. The choice about the level rising sharply gets the direction wrong—"plummeted" means falling, not going up, so the tone would not be hopeful. The choice about an exact, measured, neutral tone confuses "plummeted" with a precise term like the "12 percent" figure; "plummeted" adds emotion and alarm rather than plain measurement.
Question 9
After the new bins were installed, paper waste did not just go down. It plummeted. Teachers reported fewer overflowing trash cans, and the custodial staff spent less time sorting loose sheets off the floor. The student council credits clear signs and short classroom reminders for the quick change.
What tone does the word plummeted help create?
- A doubtful, questioning tone, hinting that the reported drop in waste is probably being exaggerated by the writer.
- An excited, dramatic tone that stresses a sudden and very major drop in the amount of paper waste. (correct answer)
- A calm, matter-of-fact tone, suggesting that the small change in waste was routine and nothing worth noticing.
- A proud, boastful tone, hinting that the writer mainly wants to praise the council rather than describe the drop.
Explanation: Plummeted means to fall fast and far, so it does more than say waste went down — it stresses a sudden, major drop. Paired with "did not just go down," that vivid verb gives the writing an excited, dramatic tone, which is what the correct choice names. The doubtful, questioning choice adds suspicion the word does not carry; "plummeted" reports the drop as real, not exaggerated. The calm, matter-of-fact choice clashes with the word, since a dramatic verb signals a big change is worth noticing, not a routine one. The proud, boastful choice focuses on praising the council, but "plummeted" describes how far the waste fell, not how great anyone is. Only the excited, dramatic reading matches the force of the word.
Question 10
Some bacteria can form a biofilm, a slimy layer that helps them stick to surfaces like teeth or rocks in a stream. Inside a biofilm, microbes share nutrients and can become harder to remove. That is why brushing and flossing disrupt the layer before it gets too thick.
How does using the technical term biofilm affect the meaning of the passage?
- It adds precise meaning by naming a specific bacterial structure, making the explanation more scientific and exact. (correct answer)
- It adds emotional weight by naming a dramatic danger, making the passage feel more like a warning than an explanation.
- It adds a comparison by linking bacteria to plants, making the passage explain two topics instead of one clear idea.
- It adds a casual tone by using an everyday nickname, making the passage feel friendly rather than carefully informative.
Explanation: The word "biofilm" gives a precise scientific name to the slimy layer bacteria form. That lets the writer explain exactly what the structure is and how it behaves, so the passage reads as clear and exact science. The choice about naming a specific bacterial structure captures this. The choice about emotional weight is wrong because "biofilm" is a neutral scientific label, not a dramatic warning word. The choice about linking bacteria to plants is wrong because the passage stays focused on bacteria and never introduces plants as a second topic. The choice about a casual, friendly nickname is wrong because "biofilm" is a formal technical term, and the passage even defines it to keep the explanation exact, not chatty. Only the first choice describes what a technical term actually does here.
Question 11
After months of negotiation, the two sides reached a fragile agreement. The plan lists deadlines and duties, but leaders warned that one missed payment could restart the conflict.
What does the word fragile suggest about the agreement, and how does it affect the tone?
- It suggests the agreement is strong and built to last, which creates a confident, secure tone.
- It suggests the agreement could break easily, which creates a cautious, uneasy tone. (correct answer)
- It suggests the agreement is complex and detailed, which creates a formal, businesslike tone.
- It suggests the agreement was reached quickly, which creates a hopeful, relieved tone.
Explanation: Fragile describes something easily broken, so calling the agreement fragile hints it could fall apart. That fits the warning that one missed payment could restart the conflict, giving the passage a cautious, uneasy tone. The choice about breaking easily and an uneasy tone captures both the meaning and the feeling, so it is the best answer. The choice saying the agreement is strong and built to last states the opposite of fragile, so its confident tone is wrong. The choice calling it complex and detailed confuses the plan's list of deadlines and duties with what fragile means; fragile describes how easily it could collapse, not how detailed it is. The choice saying it was reached quickly ignores that the sides negotiated for months, and a hopeful, relieved tone clashes with the leaders' warning about restarting the conflict.
Question 12
Under the microscope, students looked at onion root tip cells in mitosis. During prophase, the chromosomes became thick and short, and during metaphase, they lined up in the center of the cell. During anaphase, they separated toward opposite ends. Recording each stage helped students estimate how long the cell spends dividing.
Why does the author use the technical term mitosis instead of the everyday phrase "cell splitting"?
- To sound scientific, even though "mitosis" refers to the exact same idea that "cell splitting" already describes clearly.
- To be precise and credible, since "mitosis" names one specific, defined process in cell division. (correct answer)
- To signal that this stage is separate from and unrelated to the prophase and metaphase steps described earlier.
- To emphasize that the process the students watched happens far more quickly than ordinary cell splitting does.
Explanation: The author picks a technical term when an everyday phrase would be too vague. "Mitosis" names one exact, agreed-upon process, so it makes the writing both accurate and trustworthy—that is why the choice about precision and credibility is correct. The option claiming "mitosis" means exactly the same thing as "cell splitting" is wrong because the everyday phrase is broader and blurrier; it could describe many kinds of splitting, not this one defined process. The option saying the term shows this stage is separate and unrelated to prophase and metaphase misreads the passage, since mitosis is the whole process that those stages are part of. The option about the process happening faster than ordinary splitting is wrong because the passage never compares speeds—it only tracks stages to estimate timing, not to say mitosis is quicker. Only the precise-and-credible answer explains why a writer would trade a familiar phrase for a specialized one.
Question 13
Some settlers described the new territory as 'empty.' But Indigenous communities had lived there for a long time. Calling the land empty helped make taking it seem acceptable. Yet villages, trade routes, and farms already existed there.
How does the word empty affect the meaning of the excerpt?
- It presents a biased view by erasing the Indigenous presence and making the taking of the land seem more acceptable. (correct answer)
- It offers a factual description of the region, showing that the settlers reported the land honestly and without any bias.
- It creates sympathy for the Indigenous communities by stressing how much they had already built on the land they lived on.
- It signals the writer's uncertainty, suggesting the settlers were unsure whether people actually lived in the new territory.
Explanation: Word choice can shape how readers judge events. Calling land 'empty' when villages, trade routes, and farms already existed erases the people living there and makes taking the land seem acceptable—a biased effect. That is why the choice naming this erasure and this excuse for the taking is correct. Saying the word is a factual, honest description misses that inhabited land is being called empty, so the description is not neutral at all. Saying it creates sympathy for the Indigenous communities gets the effect backwards: 'empty' hides them rather than highlighting what they built. Saying it signals uncertainty misreads the tone, since 'empty' states a claim confidently instead of expressing doubt about who lived there. Only the first choice explains how the loaded word shapes meaning.
Question 14
In some lakes, zebra mussels hijack the food web by filtering huge amounts of plankton. Native fish that depend on plankton for food may begin to struggle. The water can even become clearer in a way that hides the real damage. Once established, the mussels cling to pipes and boat hulls, which raises maintenance costs for nearby towns and marinas.
What does the figurative word hijack mean here, and why might the author have chosen it?
- It means the mussels literally steal boats from the whole lake, and the author uses it to add a bit of humor.
- It means the mussels take forceful control of the system, and the author uses it to make their impact sound invasive and alarming. (correct answer)
- It means the mussels quietly share the resources with others, and the author uses it to create a calm, friendly tone.
- It means the mussels are measured by a special tool, and the author uses it to make the writing sound more scientific.
Explanation: Figuratively, to hijack something is to seize forceful control of it. The mussels take over the food web by filtering out the plankton other animals need, and the strong word makes their spread sound invasive and alarming. Choice B captures both meaning and purpose, so it is correct. Choice A takes "hijack" literally as stealing boats, Choice C flips it to gentle sharing, and Choice D treats it as a measuring tool, none of which fits the context.
Question 15
Last year, the after-school arts program was dismantled in the name of savings. The decision did not happen overnight. Funding was trimmed, then staff hours were cut, and finally the classes disappeared. Supporters argue the program kept students engaged and off the streets, while critics say the city had no other choice.
How would replacing dismantled with destroyed change the tone?
- It would make the tone sound more gradual and careful, as if the change happened slowly and on purpose.
- It would make the tone more emotional and harsh, suggesting damage done in a sudden or reckless way. (correct answer)
- It would make the tone more hopeful, hinting that the program might soon be rebuilt after all.
- It would barely change the tone, since destroyed and dismantled carry almost the very same feeling.
Explanation: Word choice sets tone. "Dismantled" suggests a slow, piece-by-piece takedown, while "destroyed" suggests sudden, forceful, even reckless damage, so the swap makes the writing feel harsher and more emotional. Choice B captures that, so it is correct. Choice A describes the milder feel of "dismantled," Choice C adds a hopeful sense the word does not carry, and Choice D claims the two words feel almost the same, though their connotations clearly differ.
Question 16
The district will revise its phone rules after hearing from teachers and families. The goal is to cut distractions, while still letting students contact parents after school. A committee will review the policy again at the end of the semester.
How would replacing revise with crack down on change the tone?
- It would shift the tone from cooperative and problem-solving to much stricter and more punishing. (correct answer)
- It would shift the tone from strict to playful, hinting that the rules are not really serious.
- It would make the tone more scientific, mainly by adding a technical term to the sentence.
- It would not change the tone at all, since both phrases simply mean to edit grammar.
Explanation: Word choice carries tone. "Revise" sounds cooperative, like adjusting rules together after feedback, while "crack down on" sounds forceful and punishing. Swapping them makes the statement feel harsher. Choice A describes that shift, so it is correct. Choice B has the direction backward, Choice C wrongly calls the phrase scientific, and Choice D claims both mean "edit grammar," which "crack down on" does not.
Question 17
City leaders did not just reduce funding. They gutted the library's budget. Afterward, the weekend hours vanished, and the teen tutoring program was canceled.
How does the word gutted affect the author's tone?
- It creates a detached, neutral tone by treating the cut as a routine, technical adjustment to the budget.
- It creates a critical, emotionally charged tone by suggesting the budget was violently stripped down. (correct answer)
- It creates a firm, businesslike tone by presenting the reduction as a careful, deliberate financial decision.
- It creates a measured, reassuring tone by hinting that the difficult cuts were necessary and fair.
Explanation: Word choice shapes tone. "Gutted" is a harsh, violent word, so it makes the author sound angry and critical about how deeply the budget was slashed. The correct answer captures that emotionally charged, disapproving tone. The choice describing a detached, neutral tone treats "gutted" as a plain technical term, but the word is far too forceful to sound routine. The choice claiming a firm, businesslike tone imagines a calm, careful decision, yet "gutted" signals damage, not careful planning. The choice suggesting a measured, reassuring tone assumes the author accepts the cuts as fair, but a violent word like "gutted," paired with lost hours and a canceled program, shows disapproval, not reassurance. Only one option matches the harsh connotation of the word.