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1級Writing無料模試・慶英会独自第50セット。英文要約2題（90〜110語）、意見英作文2題（200〜240語）、誤要約を修正する24問と詳しい解説を収録します。地域の種子保存、地下水の人工涵養、サブスクリプションの解約、公教育の科学的証拠の読み方という長く役立つテーマで練習できます。
英検協会の1級Writingは英文要約1題・意見論述1題で、要約の指定は90〜110語、意見論述は200〜240語です（協会公式の試験内容、公式英語版）。この教材は各2題の追加練習で、公式過去問の転載ではありません。
次の無料教材：Writing第51セット｜英文要約2題・英作文2題・誤要約修正24問。初見で問題を解いてから、正答の根拠と誤答の理由を確認してください。
学習順序｜原文理解から自己校閲まで
- 最初に文章の課題・提案・制約・比較案・評価条件を見分ける。
- 要約は本文の主語・条件・時制・不確実性を保ち90〜110語にまとめる。
- 意見英作文は立場、独立した理由、現実的な反論と対応策、結論を組み立てる。
- 修正演習は原文の事実のすり替えや強すぎる断定を見つける。
- 模範答案を見た翌日には、初見と同じ条件で書き直す。
英文要約1｜地域の種子保存庫と農業の遺伝的多様性
課題：次の慶英会独自英文を90〜110語で要約してください。自分の意見や本文にない数値は加えないこと。
A fictional agricultural cooperative is considering a shared seed bank to conserve locally adapted varieties of vegetables and grains. Members worry that relying on a small number of commercially popular varieties could leave farms vulnerable if pests, droughts, or unusually cold seasons affect those crops. Supporters hope that maintaining a wider range of seeds will provide options for future planting and preserve knowledge held by older farmers.
However, storing packets of seeds does not automatically ensure that they remain viable. Different species require different temperatures, humidity levels, and intervals for testing germination. Some seeds lose their ability to grow relatively quickly, while others can survive longer under controlled conditions. Proper identification is equally important because a mislabeled variety could undermine the usefulness of the entire collection.
The cooperative has proposed combining storage with periodic cultivation on selected farms. Growing small batches could replenish supplies and help growers observe how varieties perform under changing conditions. Yet such trials require land, labor, and safeguards against mixing seeds unintentionally. Participants also disagree about whether some locally developed varieties should be made available without restrictions or distributed under agreements recognizing contributors.
Officials are comparing a centralized facility with smaller community collections. They plan to record germination success, genetic and descriptive information, maintenance expenses, and the practical availability of seeds to growers. Local schools may participate in educational activities, but organizers emphasize that visitor numbers would not prove the collection’s value.
Before expanding the program, the cooperative wants evidence that the seeds remain usable, accurately documented, and accessible under fair conditions. The objective is agricultural resilience, not the largest possible inventory of seed packets.
模範英文要約（97語）
A fictional agricultural cooperative is considering a shared seed bank to preserve locally adapted crops and reduce vulnerability to environmental change. Supporters expect a wider choice of varieties, but proper storage requires species-specific conditions, germination checks, and accurate identification. Members propose periodic cultivation to replenish supplies, although this needs labor and safeguards against accidental mixing. They also disagree about distribution rights and how to recognize contributors. Officials will compare centralized and community collections while measuring seed viability, documentation, costs, and growers’ access. Success depends on usable genetic resources and fair arrangements, not the number of stored packets.
日本語の全体解説：地域の種子保存庫は多様な品種を将来の農業へ残すことを目指す。ただし種袋の数では価値を証明できず、温湿度・発芽率・正しい品種表示、定期栽培と混入防止、提供者の権利・費用を継続評価する。
誤要約の修正演習12問と解答
Q1 誤：The cooperative has already completed a national seed bank. 正：The cooperative is considering a shared local seed bank. 理由：検討と完成を区別。
Q2 誤：Commercial crops are certain to fail in every drought. 正：Members are concerned that reliance on few varieties may increase vulnerability. 理由：可能性を断定に変えない。
Q3 誤：Every seed survives equally long under identical conditions. 正：Storage needs differ by species and seed type. 理由：生物学的な条件差。
Q4 誤：Packets kept in storage are automatically viable. 正：Seeds require appropriate storage and germination testing. 理由：保存数と発芽能力は別。
Q5 誤：Labels have no bearing on the bank’s usefulness. 正：Accurate identification is essential to the collection. 理由：品種表示の重要性。
Q6 誤：Periodic cultivation requires no additional resources. 正：Trials require farmland, labor, and controls against mixing. 理由：実施費用と品質。
Q7 誤：All members agree to unrestricted distribution. 正：Members disagree about sharing and contributor recognition. 理由：利害対立を維持。
Q8 誤：Only one central site is being considered. 正：Centralized and community collections are being compared. 理由：選択肢を残す。
Q9 誤：School visitor numbers determine the project’s success. 正：Practical seed viability and growers’ access are more relevant. 理由：教育イベントは代理指標。
Q10 誤：No germination tests are planned. 正：Germination success is part of the planned evaluation. 理由：検証の予定。
Q11 誤：The project will ignore maintenance expenses. 正：Operating and maintenance expenses will be examined. 理由：費用面。
Q12 誤：The goal is the largest possible number of seed packets. 正：The goal is usable diversity and agricultural resilience. 理由：本来の目的。
英文要約2｜都市の地下水人工涵養と豪雨時の貯留
課題：次の慶英会独自英文を90〜110語で要約してください。自分の意見や本文にない数値は加えないこと。
A fictional city located above a depleted aquifer is examining whether some stormwater could be collected and directed into the ground to replenish underground water supplies. Supporters hope that managed aquifer recharge could reduce pressure on wells during dry periods while helping the city handle certain heavy rains. The initial proposal includes infiltration basins near public land that has suitable geological characteristics.
Hydrologists caution that not every location is appropriate. Water must pass through soil and rock that can accept it without damaging nearby foundations or spreading contamination. Runoff from busy roads may contain pollutants that require treatment before infiltration. Moreover, a high groundwater level may reduce available storage and increase the risk of water reaching basements or underground structures.
Water managers are considering pilot sites equipped with observation wells and safeguards that allow infiltration to stop when conditions become unsuitable. They also want to distinguish an increase in measured groundwater from the portion directly caused by the project, since rainfall and private pumping change over time. Some residents worry that creating new basins would remove recreational space, while others support using land that frequently floods already.
The city is comparing recharge with repairing leaking water pipes, reducing groundwater withdrawals, and constructing conventional surface storage. Its evaluation will include water quality, recharge volumes, energy needs, maintenance, and effects on surrounding buildings. Officials emphasize that a basin that collects large quantities during one storm may not deliver reliable water resources through an entire drought.
The objective is a safe, sustainable contribution to water management, not merely the greatest volume of stormwater diverted underground.
模範英文要約（97語）
A fictional city is considering managed aquifer recharge, directing treated stormwater underground to support depleted water supplies and reduce some flooding. Hydrologists warn that geology, pollutants, and groundwater levels can make infiltration unsafe near buildings. Officials propose monitored pilot basins that can stop operating when conditions change. They will distinguish project effects from rainfall and private pumping, while residents debate the use of public land. Alternatives include leak repairs, reduced withdrawals, and surface storage. The city will examine water quality, recharge, maintenance, and surrounding impacts. Success means safe, dependable water management, not maximum infiltration during one storm.
日本語の全体解説：架空都市が雨水を地中へ浸透させ地下水を回復させる人工涵養を検討。ただし地質、流入する汚染物質、地下構造物への影響と降雨による変化の切り分けが必要。管漏れ修理等の代替と長期の安全・費用を比較する。
誤要約の修正演習12問と解答
Q13 誤：The city has already approved recharge everywhere. 正：It is examining selected pilot sites. 理由：検討中と恒久導入を区別。
Q14 誤：All runoff is clean enough to enter groundwater untreated. 正：Some runoff may contain pollutants requiring treatment. 理由：汚染の可能性。
Q15 誤：Any land can safely accept unlimited infiltration. 正：Suitable geology and available underground capacity are necessary. 理由：地質と容量の条件。
Q16 誤：Higher groundwater levels can never affect buildings. 正：Excess water may threaten basements or foundations. 理由：副作用も保持。
Q17 誤：Officials will operate basins even under unsafe conditions. 正：The proposed safeguards allow infiltration to stop. 理由：安全停止の手順。
Q18 誤：Every increase in groundwater must result from recharge. 正：Rainfall and pumping can also influence measurements. 理由：交絡を考慮。
Q19 誤：Residents unanimously welcome the new basins. 正：Some residents worry about losing recreational land. 理由：異なる意見。
Q20 誤：The city has rejected all other conservation measures. 正：Leak repairs and reduced withdrawals are among the alternatives. 理由：代替案。
Q21 誤：The project will track only water volumes. 正：Water quality, maintenance, and building impacts will also be assessed. 理由：評価項目を補う。
Q22 誤：One wet season proves drought-time water reliability. 正：Short-term collection does not establish dependable drought supply. 理由：期間の一般化。
Q23 誤：Conventional storage is technically impossible. 正：Surface storage is an option for comparison. 理由：選択肢の誇張を防ぐ。
Q24 誤：The sole goal is to put as much water underground as possible. 正：The aim is safe, sustainable overall water management. 理由：成果を適切に定義。
意見英作文1｜Should companies be required to make subscription cancellation as straightforward as registration?
200〜240語の英文で賛否と異なる根拠を説明し、反論や例外にも触れてください。
模範意見英作文（217語）
Companies should make the cancellation of digital subscriptions reasonably straightforward, especially when registration can be completed online within minutes. Recurring payments can be convenient, but unclear cancellation procedures undermine informed consumer choice.
First, transparent cancellation helps customers manage expenses. A user may discover that an apparently inexpensive service renews automatically and continues charging after it is no longer needed. Easy access to billing information and a clear confirmation of cancellation can prevent unnecessary disputes.
Second, fair procedures strengthen trust. Companies should compete through useful services rather than by making departure confusing. If customers must call an unavailable department or navigate numerous misleading screens, the resulting retention figures may not reflect genuine satisfaction.
Third, simple cancellation can improve administrative efficiency. Clear self-service options may reduce customer support requests and payment disputes, allowing employees to focus on issues that require judgment. Records of cancellation requests can also help businesses identify recurring service problems.
Critics argue that certain contracts include genuine commitments, or that immediate termination could affect services already paid for. These concerns can be addressed by displaying contract terms, remaining periods, and any lawful charges before the user confirms a decision.
In conclusion, consumers should be able to understand and exercise their options without unnecessary obstacles. Reliable retention arises from continuing value, not complexity imposed on departing customers.
日本語の論旨：オンラインで簡単に登録できる定額契約は解約も合理的に簡単であるべきだ。家計の把握と顧客の信頼、問い合わせ費用削減に寄与する。ただし最低契約期間や既払いサービスなど正当な契約条件は分かりやすく提示する。
意見英作文2｜Should public schools give more importance to teaching students how to evaluate scientific evidence?
200〜240語の英文で賛否と異なる根拠を説明し、反論や例外にも触れてください。
模範意見英作文（218語）
Public schools should place greater emphasis on helping students evaluate scientific evidence, rather than asking them to memorize conclusions without understanding how they were reached. Facts remain important, but students also need the judgment required to assess unfamiliar claims.
First, evidence literacy can improve everyday decisions. A striking headline may describe a correlation as proof of causation or present a single observation as a universal rule. Learning to ask about sample size, measurement conditions, and alternative explanations can prevent students from accepting unsupported claims.
Second, practical investigation supports deeper understanding. Students can compare measurements taken under different conditions and discuss why results vary. Such activities may teach more than repeating a definition, provided experiments are designed safely and appropriate guidance is available.
Third, these skills remain useful as technology changes. Automated systems can generate convincing explanations, but fluency does not establish accuracy. Students who know how to check original information are better equipped to benefit from new tools without relying on them uncritically.
Critics worry that inquiry-based activities require more time and equipment than traditional instruction. Schools can address those constraints by incorporating short evidence checks into existing science lessons rather than replacing every topic with a lengthy experiment.
Ultimately, science education should produce students who can understand established knowledge and evaluate the strength of new claims responsibly.
日本語の論旨：理科教育では知識暗記に加え証拠の評価を重視すべき。標本・相関と因果・比較条件を考え、実験や自動生成文章の主張を原典と照合できる能力を育てる。ただし時間・設備の制約に応じ既存授業へ組み込む。
語数より先に確認する重要な誤り
- 予定を完了した成果に書き換えていないか。
- 一季節・一地点の結果を全国的な因果として断定していないか。
- 保管された種の数と発芽能力・農家が使えることを区別できているか。
- 雨水が入った量と干ばつ時の水源への効果を混同していないか。
- 反論や費用・権利上の条件を省き、原文の立場を変えていないか。
よくある質問
英検1級の英文要約は何語ですか？
英検協会の2025年度以降の指示では90〜110語です。練習時にも実際に語数を数えましょう。
意見英作文の語数は？
1級公式の案内は200〜240語です。事実にない数値で語数を稼ぐことは避けます。
要約で自分の考えを加えてよいですか？
いいえ。要約では筆者の論旨、理由、留保を過不足なく再構成してください。
関連教材
参考公式情報
本教材の全文英文・設問・模範答案・解説は慶英会が独自制作した非公式教材です。種子保存庫や自治体等は学習用の架空の事例です。
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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