英検準1級の長文・段落の役割｜トピックセンテンス・主張・反論・結論【独自36問・全解説】

英検準1級の長文で「文は読めるのに段落の要旨が分からない」ときは、各段落が背景・課題・方法・結果・限界・提案のどれを担当するか確認してください。慶英会では短い段落の役割12問、独自長文3篇の段落構成と内容一致24問、合計36問を全解答・日本語解説・本文根拠付きで公開します。

英検協会公式の準1級試験内容には、長文の語句空所補充6問・内容一致7問が含まれます。本記事は段落構成そのものを分析する慶英会独自の教材です。公式過去問とは異なる練習形式で、本文の団体と試行結果はすべて架空です。

結論｜各段落の役割を6種類に整理する

• 背景：話題と関係者を紹介する。まだ結論ではない。
• 課題・対立：however・neverthelessなどで障壁を提示する。
• 方法：何を比較・調査・測定したかを説明する。
• 結果：何が実際に観測されたかを述べる。
• 限界・反論：別の原因、対象の偏り、未確認事項を示す。
• 提案・結論：今後の判断、政策の条件、筆者の中心意見をまとめる。

段落の最初の文が常に主題文とは限りません。最後に「この段落は何を説明するために存在するのか」を一文で説明できるかを確認します。

演習A｜短い英文12例の段落機能を説明

各英文を読み、背景・課題・例示・反論・方法・結果・限界・計画・定義・結論などの働きを日本語で答えましょう。

A1. Some rural towns have fewer bus passengers than they had a decade ago. Transport planners are now considering how to maintain essential routes.

A2. However, smaller towns may find it difficult to pay for buses that carry only a few people.

A3. For instance, one fictional town tested a minibus for residents who could not reach a hospital easily.

A4. Critics argued that the proposal would place an unfair burden on local workers.

A5. The research team compared attendance before and after the change and recorded whether students could arrive on time.

A6. The first month showed fewer errors in reservation forms, especially among regular visitors.

A7. Nevertheless, new instructions were introduced at the same time, so the form alone could not be credited for the improvement.

A8. The council will collect further information before deciding whether to expand the service.

A9. This article argues that accessibility should be evaluated together with maintenance costs.

A10. In this study, a ‘regular user’ means a person who used the service at least once each week.

A11. Although most respondents welcomed the trial, some could not use the new entrance.

A12. For these reasons, the town should test several options instead of adopting one permanently.

演習B｜独自3長文・段落構成と内容一致24問

長文1｜図書館の予約制度を改善するには（約258語）

Paragraph 1. Many public libraries have introduced online systems for reserving study rooms. These systems can save staff time and allow visitors to check available rooms without traveling to the building. However, not every user finds an online service easy to navigate. In a fictional town, several older residents reported that the instructions were confusing and that they could not locate the button for changing a reservation.

Paragraph 2. The library wanted to improve access, so staff designed a trial. They shortened the online form, rewrote several instructions, and asked users to complete common tasks while a researcher recorded their difficulties. The team included people who regularly used the library as well as some who had rarely visited it. Staff also recorded whether each participant needed assistance, rather than relying only on the total number of successful bookings.

Paragraph 3. During the first month, participants made fewer mistakes and many reported that the process felt clearer. Regular users generally completed tasks faster than occasional visitors. Some managers regarded this as evidence that the new form was successful. Yet both the form and the instructions had changed, so the library could not identify which improvement had produced the results. Moreover, the trial involved a limited number of participants.

Paragraph 4. The director therefore decided to continue testing before adopting the design permanently. She planned to compare different versions of the form, include more users with limited digital experience, and assess the staff time needed to provide support. The library’s goal was not merely to increase bookings but to make the service usable for people with different needs.

長文1の設問8問

B1. What is the main role of Paragraph 1?

1. It presents the background and the accessibility problem.
2. It proves the redesign was successful.
3. It announces a final policy.
4. It calculates staff salaries.

B2. What does Paragraph 2 mainly describe?

1. A final conclusion.
2. The library’s trial methods and measurements.
3. Criticism from another town.
4. A permanent cancellation.

B3. What is the function of Paragraph 3?

1. To define a library.
2. To introduce the director.
3. To report initial results and their limits.
4. To deny that any testing occurred.

B4. What does Paragraph 4 mainly present?

1. Past government policy.
2. An unrelated example.
3. The construction budget.
4. The director’s next steps and broader goal.

B5. What is the best summary of the passage?

1. A trial improved some outcomes, but further testing is needed to establish an accessible design.
2. Online booking is harmful and must be banned.
3. Every library visitor found the process difficult.
4. The library proved that shorter forms alone cause higher bookings.

B6. Why was it difficult to identify the cause of improvement?

1. No mistakes were measured.
2. Two changes were introduced together.
3. The library had no users.
4. All participants had equal experience.

B7. Which group did the director want to include more fully?

1. Only technology experts.
2. Only regular visitors.
3. People with limited digital experience.
4. Only people who never use libraries.

B8. Which title best fits the whole passage?

1. The History of Library Buildings
2. Why Every Online Form Fails
3. An Experiment Proving All Visitors Are Satisfied
4. Making Library Reservations More Accessible Through Careful Testing

長文2｜夏の公共施設を誰が利用できるか（約255語）

Paragraph 1. During periods of very hot weather, some communities provide indoor public spaces where residents can rest. In a fictional city, officials considered extending the opening hours of two community centers. Supporters believed the change could make it easier for residents to find an indoor place during the afternoon. However, the proposal raised questions about electricity costs, staff availability, and whether residents living far from the centers could reach them.

Paragraph 2. Before changing the hours, city staff interviewed residents and transport workers. They recorded how long people needed to travel to each building and whether the entrances could be used by people with mobility difficulties. Planners also examined electricity use during different periods of the day. Rather than assuming that everyone wanted the same service, they asked what barriers prevented residents from visiting the centers.

Paragraph 3. A four-week trial showed that more people visited one center during the afternoon. The other center experienced little change, even though its hours had also been extended. Some officials suggested that the successful location could become a model for all neighborhoods. Researchers cautioned against that conclusion: the two centers served different populations and had different transport connections. The trial had also taken place during an unusually busy local festival.

Paragraph 4. The city therefore decided to compare several more periods before expanding the project. It also considered mobile information services and transport assistance for people unable to reach the existing centers. The broader issue was not simply whether buildings were open longer, but whether the people who needed the service could realistically use it.

長文2の設問8問

B9. What is Paragraph 1 mainly doing?

1. Explaining the context and competing concerns.
2. Reporting a completed national study.
3. Describing a final financial plan.
4. Giving an unrelated historical example.

B10. What is the function of Paragraph 2?

1. It announces failure.
2. It explains the information collected before the trial.
3. It recommends closing the centers.
4. It explains the festival’s history.

B11. What is the central role of Paragraph 3?

1. To explain a medical treatment.
2. To propose a law.
3. To compare mixed results and question generalization.
4. To define electricity.

B12. What does Paragraph 4 mainly do?

1. It proves unlimited access.
2. It lists only past problems.
3. It opposes all indoor spaces.
4. It proposes further assessment and broader access measures.

B13. Why was one center’s improvement not proof the other centers would improve?

1. Locations had different populations and transport connections.
2. All centers had identical users.
3. Electricity was free.
4. No visits were recorded.

B14. What additional factor complicated interpretation?

1. An international treaty.
2. An unusually busy local festival.
3. A complete absence of staff.
4. A citywide ban on buses.

B15. What broader measure did the city want to consider?

1. Only the number of public buildings.
2. Only the cost of printed forms.
3. Whether people could realistically reach and use the service.
4. Whether all residents preferred summer.

B16. Which title best captures the main idea?

1. The Invention of Electricity
2. A History of Local Festivals
3. Why All Public Centers Must Close
4. Assessing Access to Community Centers Beyond Opening Hours

長文3｜教材の貸出数と学力向上の関係（約262語）

Paragraph 1. Schools sometimes lend electronic devices to students who cannot easily buy their own. A fictional junior high school proposed expanding such a program to support homework and online reference materials. Teachers welcomed the plan, but several parents asked whether every child had a quiet place to study and reliable internet access outside school. They argued that lending a device might remove one obstacle while leaving others unchanged.

Paragraph 2. The school introduced a small trial. Students were offered borrowed devices, instructions for using learning materials, and optional time in a school study room. Staff recorded how often devices were borrowed, whether students accessed the materials, and which participants asked for assistance. They avoided collecting unnecessary personal information and explained that a loan record did not by itself show how well someone understood a lesson.

Paragraph 3. At the end of the term, the number of students using the electronic materials had increased. Some participants said the study room was especially helpful, but others rarely used the devices at home. Test scores varied, and the school had also changed its homework guidance during the trial. As a result, the teachers could not conclude that device lending alone had improved academic performance. They also noted that those who used the study room regularly might already have been highly motivated.

Paragraph 4. The principal decided to review the results with students and families before expanding the program. The next evaluation would distinguish access to equipment, participation in study activities, and demonstrated learning. The school hoped to design a program that removed practical barriers without confusing increased technology use with educational progress.

長文3の設問8問

B17. What is the function of Paragraph 1?

1. It introduces the proposed solution and remaining obstacles.
2. It proves better test scores.
3. It announces a completed trial.
4. It lists only equipment costs.

B18. What does Paragraph 2 mainly explain?

1. A historical policy.
2. The trial design and what staff measured.
3. The final result of every test.
4. Why phones were banned.

B19. What is the role of Paragraph 3?

1. A definition of the internet.
2. A description of another school.
3. Mixed findings and alternative explanations.
4. A claim of guaranteed success.

B20. What is the focus of Paragraph 4?

1. A funding refusal.
2. Only staff complaints.
3. A description of past records.
4. A plan to separate access, participation, and learning outcomes.

B21. What did the school avoid concluding?

1. That lending devices alone had improved academic performance.
2. That students borrowed devices.
3. That study rooms were available.
4. That some students used materials.

B22. What was another simultaneous change?

1. The school closed all rooms.
2. Homework guidance had been revised.
3. Every student changed classes.
4. No one received instructions.

B23. What might explain frequent study-room use by some participants?

1. Every student had identical habits.
2. Only parents used the room.
3. These students might already have been motivated.
4. The school had required universal attendance.

B24. What best summarizes the entire article?

1. Technology always guarantees learning.
2. Loan records prove mastery of subjects.
3. School study rooms have no value.
4. Digital access should be assessed separately from actual learning progress.

全36問の模範解答・日本語・詳しい解説

A｜短文12例の役割

A1 模範：背景：地方交通が直面している状況を示す。 理由：解決策や結果ではなく、主題の出発点を説明している。

A2 模範：課題：運行費と利用者数の関係を示す。 理由：howeverの後で制約を提示する。

A3 模範：具体例：課題に対して試された一つの方法。 理由：for instanceが具体化の手がかり。

A4 模範：反論：提案への異なる立場を紹介する。 理由：critics arguedは筆者の結論そのものではない。

A5 模範：方法：何を比較し記録したかを説明する。 理由：研究の方法を述べ、効果を証明した段階ではない。

A6 模範：初期結果：限定的な観測結果を報告する。 理由：first monthとregular visitorsで対象が限定される。

A7 模範：限界：別要因による因果判断の難しさを示す。 理由：neverthelessが制約へ転じる。

A8 模範：今後の計画：追加調査と判断の予定を述べる。 理由：will collectとbefore decidingで未決定を示す。

A9 模範：中心主張：記事の判断基準を提示する。 理由：This article arguesが筆者の主張を導く。

A10 模範：定義：本文中の用語の意味を定める。 理由：meansが定義を明示する。

A11 模範：対比・限定：好意的反応と利用できない人の存在を並べる。 理由：although、mostとsomeを保持する。

A12 模範：提案・結論：これまでの理由から推奨する行動。 理由：For these reasonsとshouldがまとめと提案を示す。

B｜長文24問の解答と根拠

長文1｜図書館の予約制度を改善するには：段落別日本語要旨

Paragraph 1：公共図書館では予約システムのオンライン化が進むが、全員が使いやすいわけではない。架空の町では高齢の利用者が予約変更の操作を難しく感じていた。

Paragraph 2：図書館は用紙と説明文を簡素化し、日常的な利用者と利用頻度の低い人に試行をお願いした。予約成功数だけでなく、補助が必要かを記録した。

Paragraph 3：誤操作は減り分かりやすいという感想も多かったが、用紙と説明を同時に変えたため、どちらが改善の主因か特定できず、参加人数も限られた。

Paragraph 4：館長は恒久化を急がず、複数の画面、デジタル経験が少ない利用者、支援にかかる職員の時間を追加調査することにした。

B1 正解A：It presents the background and the accessibility problem.。本文根拠：“online systems … However, not every user …”。解説：背景と問題提起。

B2 正解B：The library’s trial methods and measurements.。本文根拠：“staff designed a trial … recorded their difficulties”。解説：方法の説明。

B3 正解C：To report initial results and their limits.。本文根拠：“fewer mistakes … Yet both … changed”。解説：結果と限界。

B4 正解D：The director’s next steps and broader goal.。本文根拠：“continue testing … goal was not merely …”。解説：今後の計画と目的。

B5 正解A：A trial improved some outcomes, but further testing is needed to establish an accessible design.。本文根拠：“both … changed … continue testing”。解説：主張と限定を残す。

B6 正解B：Two changes were introduced together.。本文根拠：“both the form and the instructions had changed”。解説：交絡要因。

B7 正解C：People with limited digital experience.。本文根拠：“more users with limited digital experience”。解説：不足した標本の補完。

B8 正解D：Making Library Reservations More Accessible Through Careful Testing。本文根拠：“goal … usable … different needs”。解説：中心を表す題名。

長文2｜夏の公共施設を誰が利用できるか：段落別日本語要旨

Paragraph 1：暑い時期に公共施設で休める環境を提供する案が出たが、延長開館には電力費や職員の確保、遠方住民の移動という問題があった。

Paragraph 2：実施前に利用者と交通担当者へ調査し、移動時間、入口の利用しやすさ、時間帯別の電力使用を測った。

Paragraph 3：一施設では来訪者が増えたが他施設では変化が小さかった。地区の人口や交通網が異なり、祭りも行われていたため一つの成功例を全地区へ一般化できなかった。

Paragraph 4：市は追加期間を比較し、施設へ行けない住民に向けた移動支援や情報提供も検討した。実際の利用可能性が主要な課題だった。

B9 正解A：Explaining the context and competing concerns.。本文根拠：“considered … However … costs, staff …”。解説：背景と制約の提示。

B10 正解B：It explains the information collected before the trial.。本文根拠：“interviewed … recorded … examined”。解説：調査方法を示す。

B11 正解C：To compare mixed results and question generalization.。本文根拠：“more … other … little change … cautioned”。解説：差のある結果と一般化の限界。

B12 正解D：It proposes further assessment and broader access measures.。本文根拠：“compare several more periods … transport assistance”。解説：追加検証と提案。

B13 正解A：Locations had different populations and transport connections.。本文根拠：“different populations … different transport connections”。解説：条件の異なる地区への一般化不可。

B14 正解B：An unusually busy local festival.。本文根拠：“during an unusually busy local festival”。解説：別の集客要因。

B15 正解C：Whether people could realistically reach and use the service.。本文根拠：“could realistically use it”。解説：形式上の開館ではなく実際のアクセス。

B16 正解D：Assessing Access to Community Centers Beyond Opening Hours。本文根拠：“not simply whether buildings were open longer”。解説：論点全体を表す。

長文3｜教材の貸出数と学力向上の関係：段落別日本語要旨

Paragraph 1：学校が電子機器を貸し出すことで教材へのアクセスが改善し得るが、家庭の静かな場所やネット環境は別の障壁として残り得る。

Paragraph 2：試行では機器、使い方の案内、学校での学習室を提供し、貸出回数、教材アクセス、援助を求めた人数を記録した。

Paragraph 3：利用者は増えたが成績はまちまちで、宿題の指導方法も同時に変更されたため、機器の貸出だけの効果とは判断できなかった。積極的な生徒が学習室を使っていた可能性もある。

Paragraph 4：校長は機器の利用可能性、学習参加、実際の学習成果を分けて評価し、継続方法を検討した。

B17 正解A：It introduces the proposed solution and remaining obstacles.。本文根拠：“lending a device might remove one obstacle while leaving others unchanged”。解説：問題の枠組み。

B18 正解B：The trial design and what staff measured.。本文根拠：“recorded how often … whether … assistance”。解説：評価の方法。

B19 正解C：Mixed findings and alternative explanations.。本文根拠：“scores varied … also changed … could not conclude”。解説：結果と交絡。

B20 正解D：A plan to separate access, participation, and learning outcomes.。本文根拠：“distinguish access … participation … demonstrated learning”。解説：今後の評価基準。

B21 正解A：That lending devices alone had improved academic performance.。本文根拠：“could not conclude that device lending alone had improved”。解説：因果は未確認。

B22 正解B：Homework guidance had been revised.。本文根拠：“also changed its homework guidance”。解説：別要因。

B23 正解C：These students might already have been motivated.。本文根拠：“might already have been highly motivated”。解説：選抜の偏り。

B24 正解D：Digital access should be assessed separately from actual learning progress.。本文根拠：“without confusing increased technology use with educational progress”。解説：中心的な警告。

英文要約への応用｜中心主張を選ぶ3ステップ

1. 背景を短くまとめ、本文で本当に論じている課題を見つける。
2. 方法・例・結果のすべてを列挙せず、主張の根拠になる重要な結果を残す。
3. however・yet・nevertheless以降の限界を無視して「成功した」と断言しない。

7日間の復習方法

1. 1日目：演習Aの役割12問を自力で判定する。
2. 2日目：長文1の段落要旨と8問を解く。
3. 3日目：長文2の段落要旨と8問を解く。
4. 4日目：長文3の段落要旨と8問を解く。
5. 5日目：各段落を日本語一文に縮める。
6. 6日目：各長文を60〜70語で英語要約し、原文の限定を残す。
7. 7日目：英検公式過去問で別分野の長文を段落ごとに要約する。

よくある質問

段落の最初の英文が必ずtopic sentenceですか？

必ずではありません。具体例や問いから段落が始まることもあるため、全段落を読んで中心機能を判断してください。

howeverを見たら必ず筆者の反対意見ですか？

いいえ。制約・別の立場・予想と異なる結果などを導く場合もあり、前後の主張がどのように変わるか確認します。

段落要旨と全文要約は同じですか？

段落要旨はその部分の機能、全文要約は文章全体の中心主張・根拠・制約を選んでつなぐ作業です。

この36問で英検準1級の合否を予測できますか？

できません。独自の段落分析教材であり、英検協会の設問数・採点とは異なります。

次の無料教材と慶英会の学習相談

英文要約の数量表現36問／指示語this・these・theyの独自長文16問／省略・代用表現36問。

慶英会では英検準1級の長文を、段落の役割・設問の根拠・英文要約へ結びつけて個別指導しています。最大1か月完全無料体験・学習相談はこちら。

参考にした主な公式情報

英検協会｜準1級の出題形式／英検協会｜準1級過去問。2026年10月28日確認。独自長文3篇・全36問・解答は慶英会が独自制作しました。