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英検2級find out・discover・notice・realize・recognizeの違い44問|気付きと発見【全解答】

編集・運営:慶英会公式ブログ(運営・編集方針)

慶英会塾長のプロフィール写真

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

最大1か月完全無料体験・学習相談|料金・無料体験の条件

慶英会塾長のプロフィール写真

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

最大1か月完全無料体験・学習相談|料金・無料体験の条件

英検2級の長文でfind out・discover・notice・realize・recognizeの違いがあいまいな方へ。これらは日本語で「気付く・分かる・発見する」と訳せますが、調べて事実を知ったのか、目や耳で変化を捉えたのか、重要な事実を認識したのか、以前知っていた人や物を見分けたのかで意味が異なります。

慶英会独自の4択20問・英文書き換え12問・4長文の内容一致12問=計44課題を、全解答と日本語の根拠付きで無料公開します。公式過去問を転載した教材ではありません。

結論|情報の入手方法と気付きの種類で区別

表現基本の意味例文
find out+疑問詞節調べるなどして分かるI found out when the bus leaves.
discover+名詞 / that節それまで知らなかったものを発見They discovered a new species.
notice+名詞 / that節 / 人+-ing目や耳などで気付くI noticed a change in the sign.
realize+that節事実や重要性を理解・認識I realized that the date had changed.
recognize+名詞以前に知っていた人・物だと分かるI recognized her by her voice.

注意:これらの動詞は文脈によって意味が重なる場合があります。初見の長文では、動詞1語だけで「誰かが事実を証明した」と推定しないでください。例えばnoticed a changeは変化への気付きであり、その原因の実証ではありません。

公式英検2級の問題形式との関係

英検協会公式の2級試験内容にはReading短文17問・長文空所6問・内容一致8問が含まれます。この44課題は情報の発見・気付き・確認を英文で区別する独自練習です。

第1部|文型・意味の4択20問

問1

You can find ___ whether seats remain available by checking the website.

  1. in
  2. out
  3. off
  4. over
正答・根拠と解説

正答 B(out)。find out whether=〜かどうか調べて分かる。

問2

Mika didn’t realize ___ the deadline had changed until she read the email.

  1. for
  2. to
  3. that
  4. about
正答・根拠と解説

正答 C(that)。realize that+節=変更を認識する。

問3

The students noticed a difference ___ the two photographs.

  1. at
  2. to
  3. with
  4. between
正答・根拠と解説

正答 D(between)。notice a difference between A and B。

問4

The scientists discovered a new ___ of insect during their fieldwork.

  1. species
  2. kindly
  3. recognize
  4. noticeable
正答・根拠と解説

正答 A(species)。discover a new species=新たな種を発見。

問5

I recognized the volunteer ___ her voice, even before I saw her.

  1. to
  2. by
  3. of
  4. with
正答・根拠と解説

正答 B(by)。recognize someone by their voice=声で見分ける。

問6

Could you find out ___ the next bus leaves?

  1. in
  2. about
  3. when
  4. whether time
正答・根拠と解説

正答 C(when)。find out when+間接疑問文。

問7

The teacher noticed several students ___ quietly near the door.

  1. to wait
  2. waited
  3. waits
  4. waiting
正答・根拠と解説

正答 D(waiting)。notice+人+-ingで進行中の動作に気付く。

問8

He realized he had ___ the wrong application form.

  1. used
  2. using
  3. uses
  4. use to
正答・根拠と解説

正答 A(used)。had usedの過去完了をrealized節で使う。

問9

I recognized the building ___ the photograph in our guide.

  1. to
  2. from
  3. of
  4. about
正答・根拠と解説

正答 B(from)。recognize … from a photograph。以前見た資料から見分ける。

問10

The researchers discovered that the old map ___ several errors.

  1. contain
  2. containing
  3. contained
  4. to contain
正答・根拠と解説

正答 C(contained)。discovered that+節、過去時制contained。

問11

Please find ___ how many places are available before applying.

  1. at
  2. up
  3. with
  4. out
正答・根拠と解説

正答 D(out)。find out how many+名詞+節で調べる。

問12

I didn’t realize the guide ___ already started until I entered the room.

  1. had
  2. was
  3. has
  4. will
正答・根拠と解説

正答 A(had)。過去に気付いた時点より前の開始had started。

問13

The staff noticed the machine ___ an unusual sound during the test.

  1. make to
  2. making
  3. made to
  4. makes to
正答・根拠と解説

正答 B(making)。notice+物+-ingで動作中の音に気付いた。

問14

The group discovered an ___ path that had not appeared on the old map.

  1. notice
  2. realize
  3. alternative
  4. recognizedly
正答・根拠と解説

正答 C(alternative)。discover an alternative path=別経路を見つける。

問15

I recognized the speaker immediately because I had ___ her before.

  1. meet
  2. meets
  3. meeting
  4. met
正答・根拠と解説

正答 D(met)。過去に会っていたのでrecognize。had metは過去完了。

問16

Which sentence means the speaker checked and learned the actual closing time?

  1. I found out the closing time online.
  2. I guessed the closing time.
  3. I forgot the closing time.
  4. I hoped the museum would open early.
正答・根拠と解説

正答 A(I found out the closing time online.)。find outは調べて情報を得たこと。

問17

Which sentence means someone suddenly understood an important fact?

  1. She looked at the poster without reading it.
  2. She realized the two dates were different.
  3. She borrowed a poster.
  4. She wanted the dates to change.
正答・根拠と解説

正答 B(She realized the two dates were different.)。realized=事実に気付いた・理解した。

問18

Which sentence refers to identifying a person previously met?

  1. I might visit the center tomorrow.
  2. I counted everyone in the hall.
  3. I recognized the guide from last year’s course.
  4. I read a new guidebook.
正答・根拠と解説

正答 C(I recognized the guide from last year’s course.)。recognize=見覚えのある人を見分ける。

問19

Which sentence expresses noticing a visible change, not proving its cause?

  1. All visitors agreed the system worked.
  2. The school proved the new signs improved grades.
  3. The service guaranteed fewer accidents.
  4. Staff noticed that a sign had been moved.
正答・根拠と解説

正答 D(Staff noticed that a sign had been moved.)。noticeは目に見える変化への気付き。原因の証明ではない。

問20

Which sentence describes finding something previously unknown in research?

  1. Researchers discovered an insect species they had never recorded before.
  2. Researchers expected to see the same familiar insect.
  3. Researchers copied a previous list without checking.
  4. Researchers ignored the insect samples.
正答・根拠と解説

正答 A(Researchers discovered an insect species they had never recorded before.)。discoveredは研究で新しい種を発見したこと。

第2部|意味を保つ書き換え12問

情報を得る方法、気付いた内容、確認された事実の範囲を変えずに書き換えましょう。

問21

The librarian checked the website and learned the current closing time.

模範の言い換え・解説

The librarian found out the current closing time on the website.

調べて事実を得るfind out。

問22

The students suddenly understood that the timetable was outdated.

模範の言い換え・解説

The students realized that the timetable was outdated.

事情を理解するrealize。

問23

The teacher saw that the classroom door was open.

模範の言い換え・解説

The teacher noticed that the classroom door was open.

視覚的な状況に気付くnotice。

問24

She identified her old classmate when she heard his voice.

模範の言い換え・解説

She recognized her old classmate by his voice.

以前知っていた人を見分けるrecognize。

問25

The researchers found a type of plant that had not been recorded there before.

模範の言い換え・解説

The researchers discovered a previously unrecorded type of plant.

未知の事実の発見discover。

問26

We checked the notice to learn whether registration was still open.

模範の言い換え・解説

We found out whether registration was still open by checking the notice.

間接疑問whether。

問27

I had not understood how serious the problem was until the inspection.

模範の言い換え・解説

I didn’t realize how serious the problem was until the inspection.

程度を認識するrealize。

問28

The guide saw a small crack in the model.

模範の言い換え・解説

The guide noticed a small crack in the model.

小さな変化に気付くnotice。

問29

I knew it was the same museum because I remembered its entrance.

模範の言い換え・解説

I recognized the museum by its entrance.

既知の場所の見分けrecognize。

問30

The town team examined old records and learned why the route had changed.

模範の言い換え・解説

The town team found out why the route had changed by examining old records.

調査による理由の把握。

問31

The library staff became aware that two reservation messages were missing.

模範の言い換え・解説

The library staff realized that two reservation messages were missing.

記録の事実を認識する。

問32

Scientists found an unexpected link in their observations.

模範の言い換え・解説

Scientists discovered an unexpected link in their observations.

研究で新たな関連を見いだす。

第3部|独自4長文・内容一致12問

学校研究、図書館サイト、歴史写真、公園の案内板を題材にした慶英会オリジナルの説明文です。調べて分かった事実と未確認事項を区別しましょう。

長文1|学校の研究発表と資料確認

A school research club examined records of local air temperatures. Students first noticed that a graph contained one unusual point. They did not immediately conclude that the weather had changed. Instead, they checked the original records and found out that a measurement had been entered twice. One student recognized the recording device from an earlier experiment and explained how it was normally used. The club corrected the graph, but it has not determined whether the broader temperature trend is changing.

問33|What did the students first notice?

  1. An unusual point on the graph
  2. A new school bus
  3. A missing exhibition ticket
  4. A change in the school uniform

問34|What did they find out after checking original records?

  1. Every temperature was invented
  2. A measurement had been entered twice
  3. The town had closed the library
  4. All devices were broken

問35|What remains undetermined?

  1. Whether the graph was checked
  2. Whether a device had been used
  3. Whether the wider temperature trend is changing
  4. Whether a club exists
日本語要旨と全解答・根拠

研究クラブはグラフの不自然な点に気付き、原記録を調べて重複入力を確認。以前使った測定器を見分けた生徒が使い方を説明した。グラフ修正は済んだが長期的気温傾向の変化は未確定。

問33:A(An unusual point on the graph)。noticed an unusual point。

問34:B(A measurement had been entered twice)。found out double entry。

問35:C(Whether the wider temperature trend is changing)。broader trend has not been determined。

長文2|図書館の新しい予約ページ

A community library updated its website so users could check the availability of books. One visitor noticed that the old instructions were still visible on a separate page. The visitor contacted staff, who found out that the old page had not been removed after the update. Staff then realized some people might still be following outdated instructions. They corrected the link and sent a notice to registered users, but the library has not measured how many people were affected.

問36|What did the visitor notice?

  1. The library had no website
  2. Old instructions were still visible
  3. Every book was missing
  4. The building had closed permanently

問37|What did staff find out?

  1. The guide was never published
  2. All users had seen the new page
  3. The old page had not been removed
  4. Nobody had submitted any request

問38|What is still unknown?

  1. How many users were affected
  2. Whether a correction was made
  3. Whether a notice was sent
  4. Whether the library has registered users
日本語要旨と全解答・根拠

図書館サイトの予約案内更新後、旧案内ページが残っていると来訪者が気付いた。担当者は古いページを削除し忘れたと調べて分かり、誤案内の可能性を認識。リンクは修正したが影響利用者数は未測定。

問36:B(Old instructions were still visible)。noticed old instructions。

問37:C(The old page had not been removed)。old page still active。

問38:A(How many users were affected)。number affected not measured。

長文3|博物館の歴史写真

A regional museum received several old photographs from local families. A volunteer recognized one of the buildings because she had visited it as a child. Researchers then checked public records and discovered that the building had been used as a community meeting place many years earlier. Staff noticed that the date written on the back of one photograph did not match the records. They are examining the difference but have not decided which date is correct. The museum will not publish an uncertain date as a confirmed fact.

問39|How did the volunteer identify one building?

  1. She remembered visiting it as a child
  2. She saw a future map
  3. She received an admission ticket
  4. She guessed the color of its roof

問40|What did researchers discover?

  1. The building was new last year
  2. It had once been a meeting place
  3. It never existed
  4. All photographs were digital

問41|What is unresolved?

  1. Whether photographs were donated
  2. Whether the volunteer knew the place
  3. Which date is accurate
  4. Whether the museum has researchers
日本語要旨と全解答・根拠

博物館に寄せられた写真でボランティアが幼少期に知る建物を認識。記録から過去に集会所として利用されていた事実を新たに発見。写真裏の日付と記録に不一致があり確定できず、未確定の日付を事実として公開しない。

問39:A(She remembered visiting it as a child)。recognized building due past experience。

問40:B(It had once been a meeting place)。records revealed old community use。

問41:C(Which date is accurate)。conflicting dates not resolved。

長文4|公園の案内板の点検

A town installed new signs in a public park. A visitor noticed that one arrow pointed toward a path that was under repair. The town checked the maintenance schedule and found out that the sign had been installed before the path was closed. Officials realized that the information could confuse visitors, so they temporarily covered the arrow. Although the problem was corrected, the town has not measured whether the signs as a whole have improved navigation.

問42|What did the visitor notice?

  1. A sign pointing to a path under repair
  2. A broken bicycle
  3. An increase in train tickets
  4. A new school building

問43|What did officials find out?

  1. The path had never existed
  2. The sign was installed before the path closed
  3. Every visitor was confused
  4. All signs had been stolen

問44|What has not been measured?

  1. Whether the arrow was covered
  2. Whether a maintenance schedule existed
  3. Overall improvement in navigation
  4. Whether a visitor reported the issue
日本語要旨と全解答・根拠

公園の案内板の矢印が修理中の道へ向いていることに来園者が気付いた。点検すると道が閉鎖される前に案内を設置していたと分かった。担当者は混乱を招くと認識して矢印を覆った。全体としての案内改善効果は未測定。

問42:A(A sign pointing to a path under repair)。noticed sign’s arrow。

問43:B(The sign was installed before the path closed)。timing of sign installation。

問44:C(Overall improvement in navigation)。navigation improvement not measured。

よくある誤り

誤り修正
find out when does the bus leavefind out when the bus leaves(間接疑問文の語順)
I realized about the changed date.I realized that the date had changed.
I recognized that new species first.「初めて見つけた」ならdiscovered a new speciesが適切
変化に気付いた=原因が証明されたnoticeとfind outの段階、検証の有無を区別する

7日間の復習

  1. 1〜2日目:4択20問を10問ずつ。
  2. 3〜4日目:書き換え12問を6問ずつ。
  3. 5〜6日目:4長文の12問を2題ずつ。
  4. 7日目:英検協会の公式過去問で気付き・出典・根拠を確認する。

FAQ

find outとdiscoverは同じですか?

意味が重なる場合もありますが、find outは調べて情報を得ること、discoverはこれまで知らなかったものや事実を見つける意味が中心です。

noticeとrealizeの違いは?

noticeは目や耳で変化に気付くこと、realizeは事実の意味を理解・認識することに焦点があります。

recognizeは「初めて発見する」ですか?

通常は以前に見聞きした人や物と同一だと認識することです。初めて発見した場合はdiscoverなどが適します。

公式過去問ですか?

いいえ。慶英会独自44課題です。

関連教材

中高一貫校の学校文法から英検2級の初見読解へ進みたい方は、慶英会の最大1か月完全無料体験・学習相談をご利用ください。

公式資料

日本英語検定協会|2級の試験内容。本文と44課題は慶英会が独自に制作しました。

find out・discoverで情報を得た後の確認方法へ:make sure・ensure・confirm・verifyの独自44問を公開しました。情報を知ったこと・証拠で検証したこと・予約が確定したことを区別できます。

英検対策を個別に相談したい保護者様へ

慶英会塾長のプロフィール写真

慶英会 塾長|慶應義塾大学卒・英検1級
塾長の経歴・指導方針を確認する

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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