慶英会 塾長｜慶應義塾大学卒・英検1級
中高一貫校の学校英語・NEW TREASURE・英検対策を専門とするオンライン個別指導塾です。塾長紹介
英検準1級のmaintenance・repair・renovation・restoration・retrofitは、いずれも建物や設備の『修理・改修』に関係します。しかしmaintenanceは定期保守、repairは故障や破損箇所の修理、renovationは施設を広く改修・刷新すること、restorationは元の状態・歴史的な姿へ戻すこと、retrofitは既存の建物や設備へ新しい機能を後付けすることを表します。慶英会独自の40課題で、文脈の違いを正確に理解します。
本記事は慶英会の独自英文・独自演習です。実在する建築工事や法令上の基準を説明するものではなく、英検協会の公式問題の転載ではありません。準1級Readingの短文語句空所・長文内容一致に応用するため、代表的な用法と読解上の限定を整理しています。
5語の意味と典型的な使い方
routine maintenance / preventive maintenance＝定期保守・予防保守。repair a broken pipe＝壊れた配管を直す。renovate a school library＝図書館を改修して使いやすくする。restore a historic mural＝歴史的な壁画を元の状態へ戻す。retrofit a building with an accessible entrance＝既存建物に段差のない入口を新設する。refurbishmentも改装・再整備の意味でrenovationに近く、厳密な境界は工事の内容によって異なります。
最初に考える3点
①故障した設備があるか。あればrepair。②継続して点検・清掃するだけか。これはmaintenance。③広い改修か、元の姿への復元か、新しい技術の後付けかを分ける。実際の工事には複数の要素が同時に含まれることがあります。単語だけでなく目的と行為を確認しましょう。
Part A｜4択の意味判断20問
Q1. Workers inspect and clean the ventilation system every month to prevent problems. What activity is described?
A. routine maintenance
B. restoration of a historical state
C. installation of a new lift
D. a response to a broken pipe
Q2. A water pipe cracked, and technicians fixed the damaged section. What did they carry out?
A. a redesign of the entire building
B. a repair
C. a historical restoration
D. a change to the room’s purpose
Q3. A school replaced worn classrooms and redesigned the learning spaces to modernize the building. What was this work?
A. a routine inspection
B. a return to original nineteenth-century details
C. a renovation
D. a one-time fault correction
Q4. A museum used archival drawings to return a damaged room to its original historic appearance. Which word fits best?
A. maintenance
B. a new modern extension
C. retrofit
D. restoration
Q5. An old office had no lift. Engineers added a new lift to the existing building. What was the specific change?
A. a retrofit
B. routine maintenance
C. repairing an existing lift
D. restoring the old appearance
Q6. A library has an annual contract to inspect its fire alarms before they fail. What is its purpose?
A. to restore their 1900 appearance
B. preventive maintenance
C. to construct another library
D. to fix confirmed fire damage
Q7. A window broke during a storm, and workers replaced its glass the next morning. Which is most precise?
A. a long-term refurbishment
B. a new energy retrofit
C. a repair of storm damage
D. a historical restoration
Q8. A theater returned its ceiling decorations to an earlier design using surviving photographs. This is mainly…
A. an ordinary weekly check
B. a software update
C. a new energy device
D. historical restoration
Q9. A school added modern insulation to walls that had none, without changing the building’s main use. Which project is described?
A. an energy-efficiency retrofit
B. replacing a broken window only
C. routine cleaning
D. reversing all modern changes
Q10. A town updated a library’s interior layout and reading areas to meet new needs. Which label is most appropriate?
A. a single light-bulb repair
B. a renovation
C. a monthly maintenance check
D. a return to an older layout
Q11. The center’s staff check filters weekly and replace them on schedule, even when no fault has occurred. This is…
A. building reconstruction
B. historical restoration
C. planned maintenance
D. emergency repair
Q12. A damaged sculpture was carefully returned to its documented former appearance. Which description is best?
A. a new accessibility retrofit
B. routine opening procedures
C. an office renovation
D. artwork restoration
Q13. Technicians repaired the existing automatic door after its motor stopped working. Which activity occurred?
A. repair of a failed mechanism
B. installation of a new building wing
C. returning a room to an old style
D. routine preventive checks only
Q14. A clinic added automatic sliding doors to its older entrance for accessibility. Which specific approach is described?
A. repair of a previously installed door
B. retrofitting the entrance with new doors
C. monthly lubrication of a door
D. reconstructing the original historic door
Q15. The university changed lecture rooms, furniture and circulation routes in a broad improvement project. What is described?
A. a repair of one broken desk
B. routine cleaning
C. renovation of the facilities
D. conservation of an unchanged layout
Q16. A historic house removed later alterations to recreate its documented original facade. This work is…
A. a modern technology retrofit
B. ordinary preventive maintenance
C. repair without reference to the past
D. restoration
Q17. The museum budgets for regular roof inspections and drain cleaning to avoid leaks. This is…
A. maintenance
B. repairing an existing leak
C. a new rooftop extension
D. restoration of a historical garden
Q18. After the cooling machine stopped working, staff fixed its broken compressor. The work was…
A. an interior redesign
B. a repair
C. a conversion to a museum
D. a historical restoration
Q19. An old hall now has a modern ventilation system added to its existing structure. The added technology is…
A. a fault in existing equipment
B. the original historical feature
C. a retrofit
D. merely regular cleaning
Q20. A visitor center was extensively updated with improved circulation, new counters, and better lighting. What is the broader work?
A. a daily check
B. repairing one single broken bulb
C. historical restoration only
D. renovation
Part A｜正答と詳しい根拠
A1. A。故障を防ぐための定期的な点検・清掃はmaintenance。
A2. B。既に起きた故障を修理する行為はrepair。
A3. C。建物・機能を広く改善する工事はrenovation。
A4. D。歴史的な元の状態へ戻すのはrestoration。
A5. A。従来なかった新設備を既存構造に追加するのはretrofit。
A6. B。故障予防の保守・点検。
A7. C。壊れた箇所の補修。
A8. D。資料に基づく元の姿への復元。
A9. A。既存建物へ新たな断熱性能を組み込む。
A10. B。機能・空間の改修・刷新。
A11. C。予防的な計画保守。
A12. D。作品の記録された状態への復元。
A13. A。既存機構の故障を修理した。
A14. B。既存施設への新たな機能追加。
A15. C。施設全体の改修。
A16. D。記録された過去の姿の再現。
A17. A。劣化予防の継続保守。
A18. B。具体的な故障部品の修理。
A19. C。古い建物に新しい設備を組み込んだ。
A20. D。目的や使いやすさを改善する施設改修。
Part B｜和文英訳と対比8問
Q21. 『建物を毎月点検して故障を防ぐ』をmaintenanceで書く。
Q22. 『壊れた配管を修理した』をrepairで書く。
Q23. 『使いにくい図書館を改修した』をrenovateで書く。
Q24. 『古い壁画を歴史資料に基づき元の状態へ復元した』をrestoreで書く。
Q25. 『古い学校へ新しい換気装置を後付けした』をretrofitで書く。
Q26. 『定期保守をしても突然の故障修理が必要なことはある』を英文にする。
Q27. 『元の建物を保存しつつ、階段のない入口を新しく取り付けた』を英文にする。
Q28. 『新しい照明を取り付けることは必ずしも歴史的な復元ではない』と書く。
Part B｜模範英文と解説
A21. The building undergoes monthly maintenance to prevent breakdowns. 解説：不具合発生前の定期的な保守。
A22. Workers repaired the broken pipe. 解説：既に損傷した対象を修理。
A23. The town renovated the outdated library to improve accessibility. 解説：施設の広い改善を表す。
A24. Specialists restored the old mural to its documented original appearance. 解説：記録された元の姿への復元。
A25. The school retrofitted its old building with a new ventilation system. 解説：retrofit A with Bの語法。
A26. Routine maintenance cannot guarantee that unexpected repairs will never be needed. 解説：予防と故障後の対応を区別。
A27. The project preserved the original building while retrofitting it with a step-free entrance. 解説：保存・追加改修を両立する。
A28. Installing modern lighting is not necessarily historical restoration. 解説：新設備追加と原状復元を区別。
Part C｜独自長文3題・12課題
長文1｜地域の古い劇場と空調設備
A community theater had experienced occasional problems with its air-conditioning system. Staff carried out routine maintenance, including filter checks, but the older equipment eventually failed. Technicians then repaired the damaged motor. At the same time, management was considering a larger renovation that would rearrange seating and improve accessibility. A separate proposal would retrofit the building with a more efficient ventilation system. Preservation specialists warned that any work on the decorative ceiling should respect the theater’s documented original design. They said that restoration of the ceiling was different from modernizing the theater. The director had approved repairs to keep the theater operating, but had not yet approved the larger renovation or retrofit.
【全文和訳】地域劇場では空調設備の定期保守・フィルター点検を行っていたが、古い機器が故障し、技術者がモーターを修理した。運営側は座席配置やアクセスを改善する大規模改修も検討していた。別途、省エネルギーの新換気設備の後付けも提案された。保存担当は装飾天井の歴史的な意匠を守るよう求め、天井の復元と劇場の現代化を区別した。承認済みなのは運営継続のための修理で、大規模改修・後付けは未承認。
Q29. What work had staff done before the motor failed?
Q30. What happened after the motor failed?
Q31. What was proposed to improve the ventilation system?
Q32. Which major works remain unapproved?
全解答と本文根拠
A29. Routine maintenance, including filter checks. 解説：予防・点検はmaintenance。
A30. Technicians repaired the damaged motor. 解説：故障後のrepair。
A31. A retrofit using newer, more efficient equipment. 解説：古い建物への新設備追加。
A32. The larger renovation and proposed ventilation retrofit. 解説：承認済み修理と未承認の工事を区別。
長文2｜公共図書館の入口と史料の保存
A historic library needed to improve access for visitors using mobility aids. The building team proposed adding a modern step-free entrance through a retrofit. A different group wanted to restore the original wooden doors to their documented appearance. Architects explained that the two goals could be compatible, but they involved different kinds of work. Regular maintenance of the roof and windows would also be required regardless of which design was selected. During an inspection, workers discovered a broken drain and arranged for its repair. The council had approved only the inspection and the urgent drain repair. It would compare the costs and effects of the proposed accessibility retrofit and historical restoration before deciding on a complete renovation.
【全文和訳】歴史ある図書館では補助具を使う来館者のアクセス改善のため段差のない入口を後付けする案がある。別の団体は古い木製ドアを記録された昔の姿に復元したいと考えた。建築家は二つの目的を両立できる可能性があるが工事の種類は異なると説明する。どの設計でも屋根・窓の定期保守は必要。点検中に排水設備の破損が見つかり修理を手配した。承認されたのは点検と緊急修理のみで、アクセス改修・歴史復元の費用を比較してから全体の改修を決める。
Q33. What did the accessibility proposal involve?
Q34. What was the other group’s aim?
Q35. What urgent action was authorized?
Q36. What has not been approved yet?
全解答と本文根拠
A33. Retrofitting a step-free entrance. 解説：既存施設に新機能を追加。
A34. Restoring the wooden doors to their historic appearance. 解説：文書に基づく原状復元。
A35. Repairing a broken drain. 解説：損傷の修理。
A36. The complete renovation and design choices. 解説：検討と決定を分ける。
長文3｜学校の教室の改善と学習効果
A school upgraded several outdated classrooms in a renovation project. Desks were rearranged, lighting was improved, and accessible routes were marked more clearly. Staff continued routine maintenance of the new equipment. A few weeks later, a broken door mechanism required an additional repair. Teachers reported that students seemed more comfortable in the new rooms, but the school had not compared examination scores with those from earlier years. The principal warned that a renovated space did not automatically prove an improvement in learning outcomes. The school was also considering retrofitting two older classrooms with new ventilation equipment, but that plan had not been approved. The administration would review operating costs before expanding the work.
【全文和訳】学校は古い教室を改修し、机の配置・照明・段差のない動線表示を改善した。新設備は定期的に保守したが、数週間後にドア機構の故障が発生し追加修理した。教師は生徒の快適性が上がったように感じたが、前年との成績比較は未実施。校長は空間の改修を学力向上の証拠とすることを避けた。旧教室2室への新換気装置の後付けも検討中で未承認。費用の調査後に作業拡大を判断する。
Q37. What was accomplished during the renovation?
Q38. What required a later repair?
Q39. Was improved academic performance established?
Q40. What retrofit is still only being considered?
全解答と本文根拠
A37. Updates to layouts, lighting, and routes. 解説：施設の広い改善。
A38. A broken door mechanism. 解説：後から発生した故障。
A39. No. Examination scores had not been compared. 解説：快適さの感想と学力の証明は異なる。
A40. New ventilation equipment for two older rooms. 解説：追加予定の新設備。
読解の落とし穴：計画と承認を混同しない
The town proposed a renovation and approved an urgent repair. という文では、改修は提案であり承認済みではありません。maintenance may prevent failuresは故障を減らす可能性を示しますが、全ての故障を防ぐ保証ではありません。refurbishment・renovation・repairが同じ工事内に含まれる場合は、どの部分が実施済みか本文を確認します。
7日間の学習
1日目：5語の用法と目的を整理。2日目：意味分類Q1〜10。3日目：Q11〜20を再演習。4日目：Q21〜24の英訳。5日目：Q25〜28の英訳。6日目：3長文で保守・故障修理・改修計画を色分け。7日目：準1級の公式過去問で目的語と工事の状態を確認します。
FAQ｜renovationとrestorationの違いは何ですか？
renovationは古くなった施設の使い勝手や外観を改善する広い改修です。restorationは元の状態・歴史的な姿に近づけることを強調します。歴史建築の工事では両方が同時に行われる場合もあります。
FAQ｜retrofitはrepairと同じですか？
異なります。repairは壊れた設備を修理するのが中心、retrofitは既存の建物に新しい機能・装置を組み込むことを強調します。
関連無料教材
建築・公共施設Listening Part2の独自30課題 ／ resume・reopen・restoreなど再開と復旧の40問 ／ 資格と許可・権限を区別する40問
公式情報
日本英語検定協会「準1級の試験内容」 ／ 過去問・サンプル。例文と工事の設定は慶英会が制作しています。
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慶英会 塾長｜慶應義塾大学卒・英検1級。中高一貫校の学校英語・NEW TREASURE・英検対策を専門としています。塾長の経歴・指導方針を確認する