原田英語の時事英語ジュニア|英語ニュース ワークシート(中学生レベル)
Class ____ No. ____ Name ____________________
偽の記憶とは?AIで加工した写真から作った動画で、まちがった記憶が約2倍に
AI Photos Can Trick Your Memory
1Photos changed by AI can make people remember things that never happened. Researchers at MIT in the United States found this in an experiment.
2First, 200 adults looked at 24 photos for two minutes. Then they played a video game for two minutes. After that, they saw the photos again in one of four ways. Some photos had small changes made by AI.
3Finally, the researchers asked questions about the first photos. One group had seen short AI videos made from the changed photos. This group had about twice as many false memories as the group that saw the real photos.
4People in this group were also more sure about their false memories. The researchers said this could cause problems for society.
Words 単語
| rememberA1 | 動 | 覚えている、思い出すto keep something in your mind |
| researchersB1 | 名 | 研究者(researcher の複数形)people who study something to learn new facts |
| experimentB1 | 名 | 実験a test done to find out something |
| adultsA2 | 名 | 大人(adult の複数形)people who are fully grown |
| changesA1 | 名 | 変化、変えたところ(change の複数形)things that are made different |
| falseA1 | 形 | まちがった、本当ではないnot true or not correct |
| memoriesA1 | 名 | 記憶、思い出(memory の複数形)things you keep in your mind from the past |
| sureA1 | 形 | 確かだと思う、自信があるfeeling that something is right |
単語のレベル:CEFR-J(『CEFR-J Wordlist Version 1.6』 東京外国語大学投野由紀夫研究室. (URL: https://www.cefr-j.org/download.html より 2026年8月ダウンロード))
1. Reading Quiz 本文の内容に合うものを選ぼう
How many adults took part in the experiment?
A. 24B. 50C. 200D. 2,000
What did people do right after looking at the first photos?
A. They played a video game.B. They took a test.C. They went to sleep.D. They made AI videos.
Which group had about twice as many false memories?
A. The group that saw the real photosB. The group that played games longerC. The group that sleptD. The group that saw AI videos made from changed photos
How did people in this group feel about their false memories?
A. They felt less sure.B. They felt more sure.C. They were angry.D. They did not answer.
2. True or False 正しければ T、違っていれば F
( ) The experiment was done by researchers at MIT.
( ) People looked at the first photos for two hours.
( ) All the photos in the second part were changed by AI.
( ) The researchers said the results could cause problems for society.
3. Fill in the Blanks 下の語から選んで空らんをうめよう(形を変えずに)
falsememoriesResearcherschangesrememberadults
This group had about twice as many _____ memories as the group that saw the real photos.
First, 200 _____ looked at 24 photos for two minutes.
Photos changed by AI can make people _____ things that never happened.
People in this group were also more sure about their false _____.
_____ at MIT in the United States found this in an experiment.
Some photos had small _____ made by AI.
4. Word Order 語を並べかえて正しい文にしよう
( for / Then / minutes / video / a / they / game / two / played ) .
( photos / changes / AI / small / had / Some / made / by ) .
( Finally, / questions / asked / first / about / photos / the / the / researchers ) .
5. Think and Write 英語で答えてみよう
Have you ever remembered something in a different way from your friend?(友だちとちがうふうに何かを覚えていたことはありますか?)
How can you check if a photo on social media is real?(SNS の写真が本物かどうか、どうやって確かめられますか?)

Answers 解答
1. (1) C (2) A (3) D (4) B
2. (1) T (2) F (3) F (4) T
3. (1) false (2) adults (3) remember (4) memories (5) Researchers (6) changes
4.
- Then they played a video game for two minutes.
- Some photos had small changes made by AI.
- Finally, the researchers asked questions about the first photos.
全文訳
1AI で変えた写真は、人に、起きていないことを覚えさせてしまうことがあります。アメリカの MIT(マサチューセッツ工科大学)の研究者たちが、実験でこれを確かめました。
2まず、200人の大人が24枚の写真を2分間見ました。次に、2分間テレビゲームをしました。そのあと、4つのうちどれか1つのやり方で、もう一度写真を見ました。AI で少し変えてある写真もありました。
3最後に、研究者たちは最初の写真について質問しました。あるグループは、変えた写真から AI が作った短い動画を見ていました。このグループは、本物の写真を見たグループより、まちがった記憶が約2倍ありました。
4このグループの人たちは、まちがった記憶にもより自信を持っていました。研究者たちは、これが社会に問題を起こすかもしれないと言いました。
文法ポイント:使役動詞 make(make + 人 + 動詞の原形)
「(人)に〜させる」を表す。本文の Photos changed by AI can make people remember things that never happened.(AI で変えた写真は、人に起きていないことを覚えさせることがある)がその例。make のあとの動詞は to をつけない原形。
出典:KPRC Click2Houston、arXiv(MIT Media Lab の研究者ほか)、MIT Media Lab ほか(記事は原田英語の時事英語ジュニアのオリジナル)|https://www.haradaeigo.com/jijieigo-junior/news/2026-10-26-ai-edited-photos-false-memories/