12_問題集_Writing

TOEFL Writing 問題集（Integrated 3題＋Academic Discussion 5題＋満点モデル）

TOEIC 700 から TOEFL iBT Writing 28+/30 を目指す問題集。 2023 年 7 月以降の新形式（Independent 廃止 → Academic Discussion 導入）に対応。

TOEFL Writing セクション概要（新形式 2023.7-）

Task 形式 時間 単語目安
Task 1: Integrated Reading (3分) → Lecture (約2分) → Essay 20 分 150-225 語
Task 2: Academic Discussion 教授の質問 + 2 学生の返信 → 自分の意見 10 分 100 語以上（実質 130-180 語が高得点圏）

評価観点：

Task 1: Integrated Writing 戦略

構造（5段落）

[Para 1] 序論：The reading argues that [main claim]. However, the lecturer disputes this view, presenting three counterarguments.

[Para 2] First Point:
The reading claims [Point 1].
However, the lecturer counters that [counter-Point 1].
Specifically, [supporting detail from lecture].

[Para 3] Second Point:
The reading also asserts [Point 2].
The lecturer challenges this by [counter-Point 2].
For instance, [supporting detail].

[Para 4] Third Point:
Finally, the reading suggests [Point 3].
The lecturer rebuts this by [counter-Point 3].
The lecturer specifically explains that [supporting detail].

[Para 5] 結論：In summary, the lecture systematically refutes the reading's three claims.

キー表現集

Reading 引用

Lecture 引用

対比

結論

Task 1 例題（3題）

Q-T1-Int-1: The Decline of Honeybees

Reading (約 280 語)

Honeybee colonies have been declining at alarming rates across North America and Europe in recent decades. Scientists have proposed several causes for this phenomenon, called Colony Collapse Disorder (CCD). Among the most widely discussed is the use of neonicotinoid pesticides in agriculture.

First, neonicotinoids are systemic pesticides that are absorbed by plants and present in their pollen and nectar. When honeybees collect pollen from treated crops, they ingest small amounts of these toxic chemicals. Studies have shown that even sub-lethal doses can impair bees' navigation abilities, making them less likely to return to their hives.

Second, neonicotinoids appear to weaken bee immune systems. Bees exposed to these pesticides become more susceptible to common pathogens such as Nosema and viral infections. The combination of pesticide exposure and weakened immunity may explain the rapid colony deaths characteristic of CCD.

Third, the timing of the decline correlates with the introduction of neonicotinoids. These pesticides were widely adopted in the 1990s, and significant CCD outbreaks began appearing in the early 2000s. Several European countries, including France and Germany, observed reductions in bee deaths after restricting neonicotinoid use, suggesting a causal link.

Lecture (200-220 語、書面化)

"I want to address what the reading says about neonicotinoids and bee decline. While these pesticides are clearly harmful and probably contribute to bee health problems, the reading overstates the evidence for a primary causal role.

First, the navigation impairment studies cited by the reading were conducted in laboratory conditions using doses higher than what bees typically encounter in the wild. Field studies, where bees actually forage on treated crops, have produced more mixed results. Some show effects, others don't. The reading presents the case as much more settled than it actually is.

Second, the link between neonicotinoids and immune weakening is real but may not explain colony deaths. Bees in industrial agriculture face many simultaneous stresses: parasites like Varroa mites, viral diseases, poor nutrition from monoculture environments, and habitat loss. Isolating neonicotinoid effects from these other factors is genuinely difficult, and many scientists believe Varroa mites are a more significant cause of colony collapse than pesticides.

Third, while it's true that some European countries saw reductions in bee deaths after restricting neonicotinoids, the same period saw improvements in beekeeping practices, better Varroa mite control, and changes in agricultural patterns. The correlation doesn't establish that neonicotinoids alone were responsible. Decline patterns are also continuing in some areas despite the restrictions, suggesting more complex causes."

Question

Summarize the points made in the lecture, being sure to specifically explain how they cast doubt on the points made in the reading.

Model Essay (215 語, score: 5/5)

The reading argues that neonicotinoid pesticides are the primary cause of Colony Collapse Disorder (CCD), citing impaired navigation, weakened immune systems, and timing correlations. However, the lecturer disputes this view, arguing that the reading overstates the evidence for a primary causal role and presents three counterarguments.

First, the reading cites laboratory studies showing that neonicotinoids impair bees' navigation abilities. The lecturer counters that these studies used pesticide doses higher than those bees typically encounter in real fields. Field studies — where bees actually forage on treated crops — have produced mixed results, with some showing effects and others not. Therefore, the case is far less settled than the reading suggests.

Second, the reading claims that neonicotinoids weaken bee immune systems. The lecturer acknowledges this but points out that industrial bees face many simultaneous stresses, including Varroa mites, viral diseases, poor nutrition, and habitat loss. Isolating neonicotinoid effects is genuinely difficult, and many scientists consider Varroa mites a more significant cause of colony deaths.

Third, the reading argues that European bee population recoveries after pesticide restrictions establish a causal link. The lecturer disputes this by noting that the same period saw improvements in beekeeping practices and Varroa management. Furthermore, declines continue in some areas despite restrictions.

In summary, the lecturer systematically refutes the reading's claims.

評価コメント:

Q-T1-Int-2: The Construction of the Great Pyramid

Reading (260 語)

Egyptologists have long debated how the ancient Egyptians constructed the Great Pyramid of Giza, a structure consisting of approximately 2.3 million stone blocks weighing on average 2.5 tons each. The most widely accepted theory is that workers used long, straight ramps to drag the blocks to higher levels.

First, ancient inscriptions and depictions in tomb paintings show workers using ramps for various construction projects. While no specific images of pyramid ramps have survived, this evidence suggests that ramp technology was familiar to the Egyptians of that era.

Second, the size and orientation of remnants found near the pyramid base are consistent with the foundations of large straight ramps. Mud brick fragments and gypsum mortar deposits have been identified that may indicate where ramp structures once stood.

Third, the geometry of straight ramps is straightforward and would have allowed Egyptians to use the simple technology they are known to have possessed. With sufficient labor — perhaps tens of thousands of workers — straight ramps could have moved the blocks at a feasible pace, given the construction time of approximately 20 years.

Lecture (220 語)

"The straight-ramp theory has serious problems that have led many specialists to look elsewhere. Let me address each point.

The reading mentions tomb-painting evidence of ramps, but those depictions are mostly of small construction projects — like obelisks or small structures. None of them depict pyramid construction at this scale. We have no direct evidence that ramps of the size required for the Great Pyramid actually existed. Inferring from small-scale ramps to monumental ones is a much bigger leap than the reading suggests.

Second, the reading mentions debris consistent with ramps near the pyramid. But here's the problem: a straight ramp tall enough to reach the top of the pyramid — about 147 meters — would need to extend nearly 1.6 kilometers in length to maintain a workable slope. That's longer than the Great Pyramid itself! And it would have required millions of cubic meters of material — almost as much as the pyramid. There is simply no archaeological evidence of such an enormous structure existing.

Third, the reading suggests straight ramps are geometrically simple. They are, but as the pyramid grew taller, the ramps would have had to grow longer and taller along with it — requiring more and more labor. Some recent theories propose internal spiral ramps inside the pyramid itself, which would have been more practical and consistent with newly discovered cavities."

Question

Summarize the points made in the lecture, explaining how they cast doubt on the reading's claims.

Model Essay (213 語, score: 5/5)

The reading argues that the ancient Egyptians constructed the Great Pyramid using long, straight ramps, citing tomb paintings, debris remnants, and the geometric simplicity of ramps. However, the lecturer disputes this view, presenting three counterarguments to challenge the straight-ramp theory.

First, the reading suggests that tomb paintings provide evidence for the use of ramps in pyramid construction. The lecturer counters that the depictions in these paintings show only small-scale projects, such as obelisks, not the construction of the Great Pyramid itself. Inferring from small ramps to monumental pyramid ramps is a substantial leap that the reading does not adequately address.

Second, the reading claims that debris near the pyramid base is consistent with ramp foundations. The lecturer challenges this by noting that a straight ramp tall enough to reach the pyramid's 147-meter peak would have required a length of nearly 1.6 kilometers — longer than the pyramid itself. Such a structure would have required millions of cubic meters of material, yet no archaeological evidence of so massive a ramp exists.

Third, the reading argues that straight ramps are geometrically simple and feasible. The lecturer responds that as the pyramid grew, ramps would have had to grow correspondingly larger. Recent theories propose internal spiral ramps as a more practical alternative.

Q-T1-Int-3: The Effects of Minimum Wage Increases

Reading (260 語)

Increasing the minimum wage is often opposed by economists who argue that it harms low-wage workers in three significant ways.

First, classical economic theory predicts that raising the price of labor reduces the quantity demanded. When employers must pay more per worker, they hire fewer workers. Therefore, minimum wage increases lead to higher unemployment, particularly among the workers the policy is meant to help: those with low skills or education.

Second, minimum wage increases drive small businesses to fail. Unlike large corporations, small businesses operate on thin margins and cannot easily absorb labor cost increases. As a result, minimum wage hikes lead to small business closures, reducing competition and limiting consumer choice.

Third, minimum wage increases push up prices, especially in industries where labor is a major cost component, such as restaurants and retail. These price increases ultimately fall on consumers, including the very low-income households the policy was designed to help, partially offsetting any wage gains.

Lecture (220 語)

"The economist's traditional argument against minimum wage increases sounds compelling, but recent empirical evidence has substantially complicated the picture. Let me address each point.

First, the prediction that minimum wage increases cause significant unemployment doesn't match modern empirical research. Studies by economists like David Card and Alan Krueger, comparing employment in fast food restaurants in New Jersey and Pennsylvania after a New Jersey minimum wage hike, found virtually no negative employment effect. Many subsequent studies have replicated this finding. Labor markets, it turns out, often don't follow the simple supply-demand model the reading invokes — particularly when employers have wage-setting power.

Second, the claim that small businesses universally fail after minimum wage hikes is also overstated. Studies of cities that have raised their minimum wage, like Seattle and San Francisco, show that while some businesses adjust prices or hours slightly, mass closure events have not materialized. Higher wages can actually reduce employee turnover, training costs, and absenteeism, which partially offsets labor cost increases.

Third, the price increase effect, while real, is typically smaller than the reading implies. A study by the Federal Reserve found that minimum wage increases led to less than a 1% rise in restaurant prices on average. Furthermore, low-income consumers benefit from their own higher wages, so the net effect on their purchasing power is generally positive, not negative."

Question

Summarize the points made in the lecture, explaining how they cast doubt on the points made in the reading.

Model Essay (220 語, score: 5/5)

The reading argues that minimum wage increases harm workers and the economy in three ways: by causing unemployment, driving small businesses to fail, and pushing up consumer prices. However, the lecturer disputes this view, presenting empirical evidence that complicates each claim.

First, the reading asserts that minimum wage increases reduce employment by raising the cost of labor. The lecturer challenges this by citing research from economists David Card and Alan Krueger, who compared fast food employment in New Jersey and Pennsylvania after a wage hike and found virtually no negative employment effect. Subsequent studies have replicated this result, suggesting that simple supply-demand models often fail to capture real labor market behavior.

Second, the reading claims that small businesses widely fail after minimum wage hikes. The lecturer counters that cities like Seattle and San Francisco — which have raised their minimum wages substantially — have not seen mass closures. Higher wages can actually reduce employee turnover and absenteeism, partially offsetting labor costs.

Third, the reading argues that minimum wage increases push up consumer prices, hurting low-income households. The lecturer acknowledges that prices rise, but notes that Federal Reserve research found the effect to be less than 1% in restaurants. Moreover, low-income consumers benefit directly from their own higher wages, leading to a generally positive net effect on purchasing power.

Task 2: Academic Discussion 戦略

タスク形式

  1. 教授の質問：講義で議論を始め、学生に意見を求める
  2. 2 学生の意見：それぞれ 70 語程度の異なる立場の返信
  3. あなたの返信：100 語以上（高得点圏は 130-180 語）、10 分

高得点エッセイの構造

[Para 1: 自分の立場明示] I find this an interesting question. While [acknowledging classmate's point briefly], I believe [your clear position].

[Para 2: 主たる理由 + 具体例] The main reason I hold this view is [reason]. For example, [specific example, ideally personal experience or well-known case].

[Para 3: 反対意見への対応 + 結論] Some might argue [counterargument]. However, [your refutation]. Therefore, [restated conclusion].

高得点に必要な要素

  1. 明確な立場：曖昧でなく、Y/N、賛成/反対、A/B のどれかを明言
  2. 具体例：抽象論ではなく、実際の人物・出来事・自分の経験
  3. classmate への言及：直接他の意見と対話することで議論貢献を示す
  4. 語彙・文法の多様性：複文、関係代名詞、条件節、譲歩節を混ぜる
  5. 長さ：130 語未満は減点リスク、180 語超も時間切れリスク

Task 2 例題（5題）

Q-T2-AD-1: AI in Education

Question Setup

Professor Chen: As artificial intelligence becomes more capable, schools and universities face decisions about how to integrate it into education. Some institutions are encouraging students to use AI tools for research and writing, while others are banning them entirely. I'd like you to consider this question: Should universities allow students to use AI tools like ChatGPT in their coursework? Why or why not?

Maya: I think AI should be banned in academic work. The whole point of higher education is to develop your own thinking and writing skills. If students rely on AI to write their papers or solve problems, they're not actually learning anything. They might pass courses but graduate without the skills they're supposed to have gained. We're already seeing this — employers complain that recent graduates can't write a coherent email.

Daniel: I disagree. AI tools are simply the next step in a long line of educational technology — calculators, spell-check, internet research. None of those destroyed education. The real question is how to use AI well, not whether to use it. Banning AI now is like banning calculators in math class. We need to teach students to use these tools responsibly, because they'll be using them for their entire careers.

Model Essay (158 語, score: 5/5)

This is a complicated issue with valid points on both sides. While I appreciate Maya's concern about preserving genuine learning, I find Daniel's analogy more compelling. Universities should allow AI tools, but with clear guidelines.

The main reason is that students will inevitably encounter AI in their professional lives, regardless of what universities decide. A student who graduates without learning to use AI thoughtfully is at a serious disadvantage in nearly any career. For example, in fields like marketing, software development, and even academic research, AI tools are now standard parts of the workflow. Pretending otherwise prepares students poorly for reality.

However, Maya's concern is real: students who simply outsource their thinking to AI gain nothing. The solution is not banning AI but teaching critical use. Assignments should require students to engage with AI's outputs critically — identifying errors, refining prompts, and synthesizing across sources. This produces graduates who can leverage AI rather than be replaced by it.

Q-T2-AD-2: Mandatory Voting

Question Setup

Professor Patel: Some democratic countries — Australia, Belgium, and Brazil among them — require all eligible citizens to vote in elections, with fines for those who do not. Other democracies leave voting purely voluntary. Today's question: Should countries make voting mandatory? What would the benefits and drawbacks be?

Sophia: I support mandatory voting strongly. When voting is voluntary, the people who turn out tend to be those with strong opinions or financial resources to support political engagement. Less politically active citizens — often the working class or younger people — get effectively disenfranchised. Mandatory voting forces political parties to address the concerns of the entire population, not just an active subset. Australia is a clear example: their mandatory voting has produced more centrist policies that respect majority interests.

Kenji: Mandatory voting violates individual liberty. Citizens have a right to participate or not participate in politics — that choice itself can be a form of political expression. Forcing uninformed people to vote also produces lower-quality decisions, as voters who haven't considered the issues randomly check boxes. The right to abstain is part of the right to vote.

Model Essay (172 語, score: 5/5)

I find this question genuinely difficult. Both Sophia and Kenji raise important points, but I am ultimately persuaded by Sophia's argument that mandatory voting strengthens democracy.

My main reason is that low voter turnout systematically distorts policy outcomes. When wealthy and educated voters participate at much higher rates than working-class or younger ones, policies are biased toward the concerns of those who actually vote. For example, in U.S. elections, voter turnout among citizens under 30 typically falls below 50%, which contributes to relatively little legislative attention to issues like student debt and rental housing. Mandatory voting would force politicians to address these concerns.

Kenji is correct that mandatory voting limits one form of political expression. However, abstention is not actually silenced — countries with mandatory voting allow blank or spoiled ballots that count as participation while signaling dissatisfaction. The cost to liberty, in my view, is therefore modest, while the benefit to democratic legitimacy is substantial. The Australian case Sophia mentions provides good evidence that the system produces more representative outcomes.

Q-T2-AD-3: Funding Pure Research

Question Setup

Professor Garcia: Government funding agencies must decide how to allocate research budgets. They face a tension between funding "applied" research (with clear practical applications) and "pure" or "basic" research (driven by curiosity, with no immediate practical use). For our discussion: Should governments prioritize applied research that promises near-term economic benefits, or basic research that may not yield results for decades?

Emma: Governments should prioritize applied research. Taxpayers deserve to see returns on their money, especially in areas like healthcare, energy, and climate change where we face urgent problems. Basic research is often a luxury — when budgets are tight, scarce resources should go to projects that solve problems we know exist, rather than questions that may have no useful answer.

Raj: I disagree fundamentally. Many of the most transformative technologies of the past century — from GPS to MRI scans to the entire internet — emerged from basic research with no apparent commercial value at the time. If governments only fund applied research, we lose the source of long-term breakthroughs. Pure curiosity-driven science is precisely what governments must support, because the private sector won't.

Model Essay (175 語, score: 5/5)

This is one of the central debates in science policy, and while Emma's concern about responsible budget use is legitimate, I find Raj's argument more compelling. Governments should preserve robust funding for basic research even when the immediate payoff is unclear.

The strongest reason is that the private sector will not invest in basic science. Companies need predictable returns within years, not decades. As a result, fundamental work — investigating how cells communicate, how galaxies formed, how mathematical structures behave — depends almost entirely on government and academic funding. Without it, the long-term pipeline of breakthroughs simply collapses.

Raj's example is well-chosen. The U.S. military's funding of ARPANET in the 1960s had no commercial purpose, yet it became the internet, generating trillions of dollars in economic value worldwide. Similarly, decades of pure mathematics work on number theory eventually produced modern cryptography. These cases would not have happened under Emma's "near-term returns only" rule.

Some applied research focus is sensible. But abandoning basic science would deprive future generations of innovations they cannot yet imagine.

Q-T2-AD-4: Working from Home

Question Setup

Professor Lee: The pandemic accelerated a shift toward working from home, and many companies have continued offering remote or hybrid arrangements. There is now a debate about whether companies should require employees to return to the office full time. For our discussion: Are companies right to require workers to come into the office, or should they let employees work from home if they prefer?

Olivia: Companies should require office attendance. Remote work weakens collaboration, mentoring, and company culture. Junior employees lose access to informal learning that happens in offices. New employees can't build relationships effectively over Zoom. The long-term cost of distributed teams is higher than companies realize, even if individual workers prefer remote work.

Marcus: Companies should respect individual choice. Remote work has dramatically improved work-life balance, especially for parents and caregivers. Studies show productivity is at least equal, often higher, for remote workers. Mandating office attendance disregards what workers value and disproportionately harms those with caregiving responsibilities. Companies that insist on full office return are losing talented workers to more flexible competitors.

Model Essay (167 語, score: 5/5)

Both Olivia and Marcus raise important considerations. While Olivia is correct that some collaboration suffers in fully remote setups, I believe Marcus's case for hybrid flexibility is stronger.

The main reason is that productivity research consistently supports remote work. Studies from Stanford, Microsoft, and Harvard have all found that remote workers are at least as productive as office workers, often more so. Forcing employees back full time imposes costs — long commutes, less time with family, lower morale — without measurable productivity gains.

Olivia's concern about mentoring and culture is genuine, however. The solution is not full office return, but well-designed hybrid arrangements: perhaps two or three required in-office days per week. This preserves spontaneous interactions and team building while still respecting employees' need for focused remote work.

Companies that mandate full office return are increasingly losing top talent to flexible competitors. In a competitive labor market, treating workers' preferences as a luxury to override is a strategic mistake. Hybrid flexibility is now a baseline expectation.

Q-T2-AD-5: Single-Use Plastics Ban

Question Setup

Professor Müller: Single-use plastics — bags, straws, packaging, utensils — are a major source of environmental pollution. Some governments have banned them, while others rely on voluntary corporate action and consumer behavior change. For our discussion: Should governments ban single-use plastics, or rely on voluntary measures? Why?

Ava: Governments must ban single-use plastics. Voluntary measures have failed for decades. Companies have known about plastic pollution since the 1970s and have made minimal change. Consumers cannot solve a systemic problem through individual choices — most people would prefer not to use plastic, but find alternatives unavailable or expensive. A ban forces structural change.

Tomás: I disagree with outright bans. They impose real costs on small businesses and low-income consumers who depend on cheap disposable items. Bans also push consumption toward alternatives that may be worse for the environment, like cotton bags that require enormous water use. Smart taxes and corporate responsibility programs are more flexible and effective than blanket prohibitions.

Model Essay (177 語, score: 5/5)

This is a complex issue, and Tomás's caution about unintended consequences is worth taking seriously. However, I ultimately agree with Ava that bans are necessary, although they should be designed thoughtfully.

The main reason is the historical record Ava mentions. For over 50 years, voluntary corporate action and consumer choice have failed to reduce plastic pollution at the scale needed. Plastic production continues to rise, and ocean plastic accumulation accelerates. If voluntary measures were going to work, they would have already. Sometimes structural change requires regulatory action, just as it did for leaded gasoline and certain harmful chemicals.

Tomás raises a real point about substitutes potentially being worse. The Danish life-cycle study showing cotton bags must be reused over 7,000 times to match plastic bags' carbon footprint deserves attention. However, this argues for thoughtful policy design — taxes on disposable substitutes, encouraging genuinely reusable materials — not against bans entirely.

When voluntary action fails for decades and the externalities are global, government action is justified. Implementation must be careful, but the principle of regulation is sound.

評価ルーブリック（公式準拠の自己採点）

Integrated Writing (Task 1)

Score 内容要件
5 講義の主要点をすべて含み、Reading と的確に関係づける。文法・語彙のミス最小限。
4 主要点をほぼ含むが、軽微な詳細抜けや表現の鈍さ。
3 主要点の一部抜けまたは Reading との関係不明確。明確な文法ミスあり。
2 主要点の重大な抜け、ListeningとReadingの混同、頻繁な文法ミス。
1 内容大部分欠落、文法的に困難。

Academic Discussion (Task 2)

Score 内容要件
5 明確な立場、具体的な根拠、文の多様性、語彙の正確性、自然な接続。
4 明確な立場と根拠だが、表現の鈍さや軽微なエラー。
3 立場はあるが根拠が薄い、または文法・語彙にいくつかの問題。
2 立場不明確、根拠が抽象的、文法エラー多数。
1 内容ほとんどない、または非常に短く文法も大きく問題。

学習サイクル

週 内容 目標
1週目 Task 1 例題 1-3 を写経＋自分で書き直し テンプレ習得
2週目 Task 2 例題 1-3 を時間制限内（10分） 150 語以上
3週目 自作 Task 1 を 5 本作成（reading + lecture を作って自答） 構造の自動化
4週目 自作 Task 2 を 10 本作成 多様な意見表明
5週目 全題を時間制限で再演習。エッセイをチェッカーに通す スコア 4+/5

高得点エッセイの語彙・表現集

立場表明

譲歩

因果関係

強調

例示

接続

結論

文法・語彙のチェックリスト

エッセイ完成後に必ず確認：

Grammarly / 自動チェッカー戦略

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