シャドーイング練習: Every Mistake Parents Made That Created Serial Killers - 動画で英語スピーキングを学ぶ
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Edmund Kemper.
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His mother told him no woman would ever love him, so he found a way to make sure they'd never leave.
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Edmund Kemper was just 8 years old when his mother started locking him in the basement every night.
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She said it was to protect his sisters from him.
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She called him a real weirdo, loud enough for him to hear through the walls.
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She told him he reminded her of his father, and that was never a compliment.
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By 10, Kemper had buried the family cat alive, then dug it up, then cut off its head and mounted it on a stick.
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At 14, he ran away to find his father.
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But his father had remarried and didn't want him.
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They shipped him off to live with his grandparents on a remote California ranch.
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His grandmother treated him the same way his mother had, constant criticism and constant control.
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On August 27, 1964, 15-year-old Edmund Kemper shot his grandmother in the head with a rifle.
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When his grandfather came home, he shot him too.
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When police asked why, Kemper said he wanted to see what it felt like to kill grandma
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and he killed grandpa so he wouldn't have to find out.
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Kemper spent five years in a psychiatric hospital.
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Doctors said he was rehabilitated.
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They released him into his mother's care.
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The argument started immediately.
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Screaming matches so loud the neighbors called police.
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His mother told him he was worthless, that college girls would never look at him twice, that he disgusted her.
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Between 1972 and 1973, Kemper picked up six young female hitchhikers.
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He killed them all.
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But these weren't random victims.
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They were college students, the same women his mother worked with at UC Santa Cruz, the same women she said would never want him.
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After killing one victim, Kemper buried her head in his mother's garden, facing her bedroom window.
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She always wanted people to look up to her, he said.
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On April 20, 1973, Kemper finally did what he'd been building toward his whole life.
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He killed his mother with a hammer while she was sleeping.
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He decapitated her and used her head as a dartboard.
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Then he called the police and turned himself in.
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The killings were over.
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He'd destroyed the thing that created him.
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Jeffrey Dahmer.
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When Jeffrey Dahmer was 18, both his parents left.
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His father moved out.
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His mother took his younger brother and left.
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No forwarding address, no phone calls.
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Jeffrey was alone in an empty house.
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He would later say that was the moment everything fell apart.
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Dahmer's childhood looked normal from the outside.
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Suburban Ohio.
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Two-parent household.
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A little brother named David.
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But inside, the family was fracturing.
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His mother suffered from depression and anxiety, swallowing pills by the handful.
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His father buried himself in work, chasing a PhD in chemistry while his marriage collapsed.
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The two fought constantly, screaming matches that echoed through the walls.
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No one noticed their older son slipping away.
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By age 10, Jeffrey had started collecting roadkill.
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He'd strip the flesh from dead animals and keep the bones.
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His father thought it was scientific curiosity.
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He even taught Jeffrey how to bleach and preserve the skeletons.
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He never asked why his son spent hours alone in a backyard hut, surrounded by jars of formaldehyde and tiny skulls.
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By 14, Jeffrey was drinking whiskey before school.
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Teachers noticed, his grades dropped, but no one intervened.
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By the time his parents divorced, Jeffrey had already learned the lesson that would define his life.
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People leave, everyone leaves, and there's nothing you can do to make them stay, unless you make sure they can't.
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Between 1978 and 1991, Dahmer killed 17 young men.
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He drugged them, strangled them, and kept their bodies for as long as he could.
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He posed them, photographed them, slept beside them.
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He later told investigators he wasn't trying to hurt anyone.
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He just didn't want to be alone.
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The only way I could keep them with me, he said, was if they couldn't leave.
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Dahmer was beaten to death in prison in 1994.
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He was 34 years old.
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His parents had spent years fighting over who was responsible for what their son became.
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In the end, they both abandoned him, and he never stopped trying to fill that emptiness.
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John Wayne Gacy.
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His father called him stupid, called him a sissy, called him a failure.
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John Wayne Gacy spent his entire childhood trying to earn approval that never came.
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His father was an alcoholic machinist who beat the family regularly.
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At four years old, John was whipped for accidentally moving parts in his father's car engine.
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At nine, a family friend began abusing him.
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John never told anyone, terrified his father would blame him.
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The message was clear.
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Everything wrong was John's fault.
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He tried everything.
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Worked hard in school, joined community organizations, built a successful business, hosted neighborhood parties, even dressed as Pogo the Clown to entertain children at hospitals.
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But nothing worked.
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His father kept calling him worthless.
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Then, in 1966, something changed.
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Gacy had married, had children, was managing restaurants in Iowa.
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His parents came to visit, and for the first time in his life, his father shook his hand and said, Son, I was wrong about you.
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Three years later, his father was dead.
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When Gacy heard the news in prison, where he was serving time for sexually assaulting a teenage employee, he collapsed to the floor.
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His request to attend the funeral was even denied.
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Between 1972 and 1978, John Wayne Gacy murdered at least 33 young men.
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He lured them to his home with promises of construction jobs, handcuffed them with a magic trick, assaulted and tortured them for hours,
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strangled them slowly with a rope tourniquet he called the rope trick.
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Then he buried them in the crawl space beneath his house.
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Twenty-six bodies were stacked in trenches he dug himself.
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When police finally searched his property, the stench of decay had been seeping through heating vents for years.
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Gacy showed no remorse.
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At trial, he joked about his victims.
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He blamed an alter ego named Jack, said the dead were just male prostitutes and liars.
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He was executed in 1994.
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His father never lived to see what his son became.
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But every victim buried under that house was someone's child too, killed by a man still trying to prove he wasn't worthless.
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Albert Fish.
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His mother couldn't afford him, so she gave him away.
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Albert Fish was five years old when his father died of a heart attack.
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His mother, unable to support her children alone, made a decision that would echo through history.
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She placed young Albert in St. John's Orphanage in Washington, D.C.
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She thought she was saving him.
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Instead, she was creating a monster.
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The orphanage was a house of horrors.
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Teachers beat the children constantly, whipped them until they bled, and forced the others to watch.
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It was meant as discipline.
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For Albert, it became something else entirely.
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He discovered he liked it.
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The beatings triggered excitement.
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Watching other boys suffer excited him.
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Pain and pleasure fused together in his developing mind, wiring connections that should never have existed.
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By the time his mother finally retrieved him five years later, the damage was permanent.
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Fish spent the rest of his life chasing that feeling.
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As an adult, he embedded needles into his own groin.
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29 were found lodged in his pelvis when doctors finally x-rayed him.
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He beat himself with a nail-studded paddle.
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He soaked cotton in lighter fluid, inserted it into his body, and set it on fire.
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But his own pain wasn't enough.
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He needed to hear children scream.
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Between 1924 and 1928, Fish murdered at least three children.
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He strangled them, dismembered them, cooked them.
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He even sent a letter to one victim's mother describing how he ate her 10-year-old daughter over nine days.
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Every detail, every recipe.
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Psychiatrists identified 18 different sexual abnormalities in him, more than any case in medical history.
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Fish claimed God commanded him to sacrifice children, like Abraham with Isaac.
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The jury found him insane, but they executed him anyway.
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In 1936, Fish walked to the electric chair and reportedly helped position the electrodes himself.
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His last written statement was so depraved, his own lawyer refused to release it, calling it the most filthy string of obscenities I have ever read.
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The child his mother abandoned to save money had grown into America's most disturbing killer, Henry Lee Lucas.
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His mother dressed him as a girl.
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Then she sold him.
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Henry Lee Lucas was born in 1936 in a one-room dirt floor cabin in Virginia.
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His mother, Viola, sold herself to strangers and made her son witness things no child should ever see.
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If he looked away, she beat him.
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If he cried, she beat him harder.
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But the watching wasn't the worst part.
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Viola dressed young Henry in girls' clothes, with dresses and long hair.
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She paraded him through town like that for years. But why?
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Because in this way, she could sell him to her clients. To men. To women.
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To anyone willing to pay.
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His father was a legless alcoholic who sold pencils on the street.
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He couldn't protect Henry.
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He couldn't even protect himself.
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One night, trying to escape the horror inside that cabin, he crawled outside drunk and froze to death in the snow.
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Henry was beaten constantly.
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When he was seven, his mother smashed a wooden plank across his skull.
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He spent days unconscious.
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When he was 10, his brother slashed his face with a knife.
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The wound got infected.
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His mother ignored it until a teacher accidentally struck the damaged eye.
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It burst and had to be surgically removed.
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Henry learned that he was worthless, something to be used, sold, and discarded.
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In 1960, during a Christmas visit, his mother demanded he move back home to care for her.
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They argued.
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She hit him with a broom, and he stabbed her in the neck.
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She died instantly on the floor.
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Lucas was convicted of her murder and spent years in prison.
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When authorities released him early due to overcrowding, he warned them, I'm not ready to go.
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They released him anyway.
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That same day, Lucas killed a woman within walking distance of the prison gates, his gift to the people who set him free.
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He was eventually convicted of 11 murders.
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He confessed to hundreds more, though many were later proven false.
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The truth of his body count may never be known, but one truth is certain.
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Long before Henry Lee Lucas killed anyone, his mother had already murdered the child he might have been.
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このレッスンの語彙とスピーキングのポイント
このB2レベルのスピーキングレッスンは、動画「Every Mistake Parents Made That Created Serial Killers」を教材にしています。 繰り返し出てくる語は次のとおりです：mother, father, Kemper, Jeffrey, Henry。 この動画には、シャドーイング用の文が167文、単語が1761語あります。 音声の長さは9:35です。 話す速さは速く、1分あたり約184語です。音のつながりや弱く発音される音が多くなります。 英語の頻出3,000語に含まれる単語は81%だけなので、語彙は難しめです。
この動画の重要語彙
動画の中で特に難しい単語15語を、発音と意味つきで紹介します。
| 単語 | 発音 | 意味 |
|---|---|---|
| bury 動詞 | /ˈbɛɹi/ | 埋める |
| worthless 形容詞 | /ˈwɜːθ.ləs/ | 詰まらない, 無価値な |
| scream 動詞 | /skɹiːm/ | 悲鳴を上げる, 喚く |
| orphanage 名詞 | /ˈɔː(ɹ)fənɪd͡ʒ/ | 孤児院 |
| convict 動詞 | /ˈkɑnvɪkt/ | 宣告する |
| alcoholic 名詞 | /ˌæl.kəˈhɔ.lɪk/ | アルコール中毒者 |
| execute 動詞 | /ˈɛksɪˌkjuːt/ | 処刑する, 消す |
| whip 名詞 | /ˈwɪp/ | 鞭 |
| abandon 動詞 | /əˈbæn.dən/ | 放棄する, 断念する |
| echo 名詞 | /ˈɛk.oʊ/ | 反響, こだま |
| rope 名詞 | /ɹoʊp/ | ロープ, 綱 |
| cabin 名詞 | /ˈkæbɪn/ | 小屋 |
| grandmother 名詞 | /ˈɡɹæn(d)ˌmʌðɚ/ | お婆さん, お婆ちゃん |
| collapse 動詞 | /kəˈlæps/ | 潰える, 崩壊する |
| depraved 形容詞 | /dɪˈpɹeɪvd/ | 堕落 |
動画に出てくる句動詞
| 単語 | 発音 | 意味 |
|---|---|---|
| cut off 動詞 | /ˌkʌt ˈɔf/ [ˌkɐɾ ˈɔf] | 断つ |
| find out 動詞 | 見出す, 調べる | |
| look up to 動詞 | 見上げる, 仰ぐ | |
| pick up 動詞 | 拾う, 拾い上げる |
この動画の文法
話し手がよく使っている文型を、動画の実際の表現とともに紹介します。
| 文型 | 動画での表現 |
|---|---|
| 受動態 be + 過去分詞 — 誰がするかより、何が起きるかに焦点を当てる | was rehabilitated · was beaten · was whipped |
| 現在完了形 have/has + 過去分詞 — 過去の出来事が今も関係している | have existed · have ever read |
注意したい発音
話し手はcouldn't, wasn't, he'dなど、短縮形や弱形を18回使っています。聞こえたとおりの短い形で発音しましょう。
- 「th」の音: worthless /ˈwɜːθ.ləs/, grandmother /ˈɡɹæn(d)ˌmʌðɚ/, filthy /ˈfɪlθi/
- 「sh」と「zh」の音: machinist /məˈʃiː.nɪst/, unconscious /ˌʌnˈkɑnʃəs/, smash /smæʃ/, flesh /flɛʃ/
- 長い単語（アクセントの位置に注意）: alcoholic /ˌæl.kəˈhɔ.lɪk/, abnormality /ˌæbˌnɔɹˈmæl.ət.i/, decapitated /dɪˈkæpɪteɪtəd/, formaldehyde /fɔː(ɹ)ˈmældɪhaɪd/, rehabilitate /ɹiː(h)əˈbɪlɪteɪt/
日本語話者が苦手な音：
- /r/ と /l/ の区別 — /l/ は舌先を歯茎につけ、/r/ はどこにもつけない: strangle /ˈstɹæŋɡəl/, crawl /kɹɔːl/, abnormality /ˌæbˌnɔɹˈmæl.ət.i/, electrode /əˈlɛk.tɹəʊd/, formaldehyde /fɔː(ɹ)ˈmældɪhaɪd/
- /v/ — /b/ にならないように、上の歯を下唇に当てる: convict /ˈkɑnvɪkt/, depraved /dɪˈpɹeɪvd/, pelvis /ˈpɛlvɪs/, intervene /ˌɪntəˈviːn/, retrieve /ɹɪˈtɹiːv/
- /f/ — 「フ」ではなく、上の歯と下唇で出す: orphanage /ˈɔː(ɹ)fənɪd͡ʒ/, formaldehyde /fɔː(ɹ)ˈmældɪhaɪd/, handcuff /ˈhændˌkʌf/, infect /ɪnˈfɛkt/, terrify /ˈtɛɹɪfaɪ/
この動画での練習方法
- まず声を出さずに動画を最後まで聞き、知らない単語をメモします。
- まず0.75倍速で一文ずつシャドーイングし、慣れてきたら通常の速度に戻します。
- 自分の声を録音して元の音声と比べます。bury, worthless, screamなどの単語に特に注意しましょう。
シャドーイングとは？英語上達に効果的な理由
シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。