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2級プラスでbetween・among・within・throughoutを正しく選ぶには、①特定の対象どうしの関係、②集団の中、③境界・期限の内側、④期間全体・地域の各所、という違いを押さえます。慶英会が独自制作した4択20問・改善8問・長文2本8問・英作文4問の合計40課題を、全解答・長文全文和訳・解説付きで公開しました。
本記事は公式過去問ではありません。準2級プラスのReadingは短文空所17問・長文空所6問・内容一致8問、Writingは英文要約と英作文の2題です。日本英語検定協会｜公式試験内容に沿う語法・長文の理解を練習できます。
最初に結論｜4つの前置詞を比較
- between A and B：2つの対象の間。さらに、明確に区別できる3つ以上の対象・関係にも使われます。例：a discussion between three departments。
- among＋集団：集団の中・集団に属する人の間。例：popular among students。
- within＋範囲・期限：建物や境界の内側／決められた時間以内。例：within the building / within three days。
- throughout＋時間・地域：期間全体を通じて／地域の各所に。例：throughout the year / throughout the town。
- 注意：「betweenは2つだけで、3つ以上はamong」と丸暗記するのは不正確です。集団をひとまとめに述べるか、個別の対象間の関係かを確認してください。
英検長文での読み分け｜期限・位置・期間を混同しない
The service was available within a month は「1か月以内に利用可能だった」という時間的な上限を示す文脈になり得ます。The service was available throughout the month は「その月の全期間にわたって利用できた」という継続を示します。Eメールで予約や返却期限を確認するときに特に重要です。
第1部｜4択の語法20問
問1｜4択
The students divided the twelve posters equally ( ) three clearly named groups.
A. between ／ B. beyond ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：A. between 和訳：生徒たちは12枚のポスターを、名前が明示された3グループの間で等分した。 解説：Between can refer to three explicitly distinguished groups as well as two. Among three groups is also natural in this sentence, so the original distractor among could not be marked wrong; it has been changed to beyond.
問2｜4択
The teacher walked ( ) the students while they were working at their desks.
A. beneath ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：B. among 和訳：生徒が机で作業する間、教師は生徒たちの間を歩いた。 解説：Among describes movement in the middle of a group. Between the students can also be natural when moving between individual desks, so the former distractor between has been replaced to avoid two defensible answers.
問3｜4択
Please submit the revised report ( ) five working days.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：C. within 和訳：修正済みの報告書を5営業日以内に提出してください。 解説：within a period sets a deadline no later than its end.
問4｜4択
The museum remained open ( ) the summer vacation.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：D. throughout 和訳：博物館は夏休みの期間ずっと開館していた。 解説：throughout the vacation describes the entire period.
問5｜4択
The meeting will take place ( ) 3:00 and 4:00 p.m.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：A. between 和訳：会議は午後3時から4時までの間に行われる。 解説：between A and B gives two endpoints.
問6｜4択
There was considerable interest in the project ( ) local residents.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：B. among 和訳：その計画は地元住民の間で大きな関心を集めた。 解説：among local residents refers to a group collectively.
問7｜4択
The emergency exit is located ( ) the school building.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：C. within 和訳：緊急出口は校舎の内部にある。 解説：within the building = inside its boundaries.
問8｜4択
Small signs were placed ( ) the park at regular intervals across all sections, so visitors could find the paths.
A. between ／ B. among ／ C. above ／ D. throughout
正解・全文和訳・理由
正解：D. throughout 和訳：来訪者が道を見つけられるよう、公園の各所に小さな標識を置いた。 解説：Throughout the park means signs were distributed all across the area, as specified by at regular intervals across all sections. Within the park would also be grammatically possible in the original sentence, so it was removed as a distractor.
問9｜4択
The new footbridge stands ( ) the library and the sports center.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：A. between 和訳：新しい歩道橋は図書館とスポーツセンターの間にある。 解説：Between two clearly specified buildings indicates the position of the footbridge. The original wording connects a path between was structurally awkward, so the subject and verb were clarified.
問10｜4択
The announcement caused confusion ( ) several participants.
A. beneath ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：B. among 和訳：その発表は複数の参加者の間に混乱を生んだ。 解説：Among several participants means confusion among members of a group. Between participants may also be possible when referring to a dispute or misunderstanding between particular people, so the former option between was not a reliable wrong answer.
問11｜4択
The volunteers must remain ( ) the designated observation area.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：C. within 和訳：ボランティアは指定された観察区域の中にとどまらなければならない。 解説：remain within a boundary.
問12｜4択
The library offered free workshops ( ) the entire month of July.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：D. throughout 和訳：図書館は7月の1か月間を通じて無料講座を開いた。 解説：throughout the entire month = over that whole period.
問13｜4択
The cooperation agreement was signed ( ) the town and the school.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：A. between 和訳：協力協定は町と学校の間で結ばれた。 解説：between identifies the two parties.
問14｜4択
The survey revealed different opinions ( ) the parents who responded.
A. without ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：B. among 和訳：調査では回答した保護者の間に異なる意見があることが分かった。 解説：Among the responding parents refers to variation within a group. Between parents can also express differences in some contexts, so the former distractor was changed rather than treating a possible alternative as wrong.
問15｜4択
The center promises to reply ( ) two days of receiving an inquiry.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：C. within 和訳：センターは問い合わせ受領から2日以内に返信すると約束している。 解説：within two days of receiving = deadline.
問16｜4択
The same rule applied ( ) the three-week trial.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：D. throughout 和訳：同じ規則は3週間の試行期間を通じて適用された。 解説：throughout the trial = entire trial.
問17｜4択
The information desk is ( ) the two main entrances.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：A. between 和訳：案内所は2つの主要入口の間にある。 解説：between two specified locations.
問18｜4択
The activity proved popular ( ) students interested in local history.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：B. among 和訳：その活動は地元の歴史に関心のある生徒たちの間で人気だった。 解説：popular among a group.
問19｜4択
All personal information must be stored ( ) a secure system.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：C. within 和訳：すべての個人情報は安全なシステム内で保管しなければならない。 解説：within a system indicates inside its boundaries.
問20｜4択
Students recorded temperature changes ( ) the twelve-week project.
A. between ／ B. among ／ C. within ／ D. throughout
正解・全文和訳・理由
正解：D. throughout 和訳：生徒は12週間の計画全体にわたり温度変化を記録した。 解説：throughout the project = continuously or across its span.
第2部｜言い換え・用法改善8問
次の英文を指定した意味でより自然な形に直しましょう。一部は絶対的な文法誤りではなく、対象が2つか集団か、分布か範囲かを明確にする用法改善問題です。
問21｜用法を改善
Students divided the work among the two departments.
改善英文と説明
Students divided the work between the two departments. Two identifiable departments naturally take between. Among may occur in some contexts but between is clearer for two discrete parties; this is a usage-improvement task, not an absolute grammatical prohibition.
問22｜用法を改善
The guide stood within the tourists and explained the rules.
改善英文と説明
The guide stood among the tourists and explained the rules. Among = in the midst of a group; within could refer to an enclosed boundary, so among better expresses position in a group.
問23｜用法を改善
Please finish the form throughout three days.
改善英文と説明
Please finish the form within three days. Within = no later than three days; throughout means over the whole span.
問24｜用法を改善
The exhibition remained open within the entire month.
改善英文と説明
The exhibition remained open throughout the entire month. Throughout emphasizes its availability over the complete period; within means inside a boundary or time limit.
問25｜用法を改善
The office is among the library and the hospital.
改善英文と説明
The office is between the library and the hospital. Between A and B specifies two landmarks.
問26｜用法を改善
The information was shared between the group as a whole.
改善英文と説明
The information was shared among the group as a whole. Among highlights distribution across group members. Between could be possible when stressing particular pairwise relationships, but not the intended collective sense.
問27｜用法を改善
Volunteers must stay throughout the safe area.
改善英文と説明
Volunteers must stay within the safe area. Within expresses remaining inside the area; throughout suggests being distributed across the area.
問28｜用法を改善
The signs were distributed within the whole city.
改善英文と説明
The signs were distributed throughout the whole city. Throughout suggests distribution in many parts of the city. Within can be grammatical, but it does not convey distribution across the whole city as clearly.
第3部｜独自長文2本・内容理解8問
長文1｜学校の理科週間・会場内のルール
A secondary school held a science week to encourage students to explore new subjects. Activities took place throughout the week, including short experiments and talks by local scientists. Some sessions were held within the school laboratory, while others were offered in the main hall. The school divided the twelve class teams between three named rooms, assigning four teams to each room. Teachers reminded students to remain within their assigned rooms during experiments. Among the students who attended, many said they enjoyed meeting researchers, but the organizers did not treat the comments as proof that science scores had improved. They planned to compare assessments from before and after the event.
問29：科学活動はどの期間に行われた？
解答・本文根拠
科学週間を通じて throughout the week。
問30：実験中に生徒に求められた位置の条件は？
解答・本文根拠
割り当てられた室内にとどまること remain within assigned rooms。
問31：12チームの割り当てはどうなった？
解答・本文根拠
3部屋に各4チームずつ twelve teams between three named rooms, four each。
問32：参加者の好意的な感想だけで学力向上が証明できたか？
解答・本文根拠
いいえ、試験成績の改善はまだ確かめられていない comments not proof of improved scores。
長文全文和訳
学校は理科への関心を高めるため科学週間を開き、1週間を通じて実験や科学者の講話を行った。実験室内で開く講座も大ホールで開く講座もあった。12チームを名前の決まった3部屋に4チームずつ割り当て、実験中は担当室から出ないよう求めた。参加生徒の間で好評だったが、それだけで理科の点数が上がったとはせず、行事前後の評価を比較する予定だった。
長文2｜地域イベントの展示地図と集合期限
A town organized a local history festival in the public square. Information signs were placed throughout the area so visitors could find exhibits. Some displays were located between the library and the town hall, and smaller activities were held within a nearby community center. Visitors were asked to arrive within twenty minutes of their booked starting time. Among the eighty visitors who answered a short survey, forty-eight said they had found the signs useful. However, officials knew that these replies came from only part of the total audience. They planned to ask more people before deciding whether the signs should be used for other events throughout the year.
問33：案内板はどこに配置された？
解答・本文根拠
広場の会場の各所 throughout the public-square area。
問34：図書館と市役所の間にあったものは？
解答・本文根拠
歴史の展示 displays between the library and town hall。
問35：到着に関する条件は？
解答・本文根拠
予約開始時刻から20分以内に到着すること within twenty minutes of booked starting time。
問36：案内板を役立つと答えた人数と回答者総数は？
解答・本文根拠
48人／80人 forty-eight among eighty survey respondents。
長文全文和訳
町は広場で歴史祭を開き、会場の各所に案内板を配置した。図書館と市役所の間に展示があり、近くの地域センター内にも小さな行事があった。来訪者は予約開始時刻から20分以内の到着を求められた。80回答者のうち48人が案内板を役立つと答えたが、総来訪者の一部だけの回答なので全員の意見とはせず、年間の他の行事にも導入すべきか追加調査する予定だった。
第4部｜和文英訳4問
問37：図書館は学校と病院の間にあります。（between）
モデル英文・文型
The library is between the school and the hospital. Between A and B identifies two locations.
問38：この計画は地元の生徒の間で人気です。（among）
モデル英文・文型
This program is popular among local students. Popular among group members.
問39：3日以内に返信してください。（within）
モデル英文・文型
Please reply within three days. Within a period marks a deadline.
問40：その展示は夏休み中ずっと開かれていました。（throughout）
モデル英文・文型
The exhibition remained open throughout the summer vacation. Throughout expresses the entire period.
復習法｜4日＋再演習
- 1日目：betweenとamongを場所や集団の文脈で区別する。
- 2日目：within three daysとthroughout three daysの意味・自然さの違いを確認する。
- 3日目：本文を全文和訳し、場所・期間・期限を示す部分を色分けする。
- 4日目：自分が間違えた選択肢の理由を説明する。
- 7日目：誤文改善と英訳4問を解答なしで再演習する。
よくある質問
Q. betweenは2つの場合にしか使えませんか？ いいえ。はっきり区別できる複数の相手や関係には3つ以上でもbetweenが使われます。
Q. withinとthroughoutは似ていますか？ どちらも時間・空間に関係しますが、withinは境界や期限の内側、throughoutは全期間または地域全体への広がりを示します。
Q. 人気があるというときはamongとbetweenのどちらですか？ popular among studentsが自然です。集団の中に広がる評価を表します。
Q. この教材の点数からCSEスコアを計算できますか？ 慶英会独自の問題から公式スコア・合否を換算することはできません。
関連無料教材
慶英会のオンライン個別指導・無料体験
慶英会ではNEW TREASUREなど学校英語と英検準2級プラスの語法・長文・英文要約をつなげて指導します。前置詞の日本語訳だけを覚えず、英文の範囲・期限・関係を読み取れるまで練習します。最大1か月の無料体験・学習相談はこちら。
参考にした主な公式情報
試験形式照合：2026年10月29日。本記事の例文・独自40問・全文和訳・解答は慶英会制作で、英検公式の問題や答案は転載していません。
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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