米国在住のまま日本語ペラペラになったアメリカ人の学習法(CEFR B2, TOEIC 785 - 940 レベル)

今回はアメリカ在住のまま日本語ペラペラになった Matt さんが運営する外国語学習者向けのサイト Matt vs Japan から単語の覚え方の動画を紹介します。

YouTube動画で使われている英単語を、オックスフォード大学出版局によるワードリスト、オックスフォード3000と5000を使ってどのレベルの単語がどれくらい使われているのか調べた結果の紹介です。

1日1動画で、未知の単語数20個前後、センテンス数も20個前後が僕としては理想ですが、何よりも興味をもてる動画かどうかを重視しています。

簡単にオックスフォード3000と5000 についてですが、CEFRに従ってコーパスを元に研究・開発された英単語リストで、オックスフォード3000の3,000単語はCEFR A1からB2レベル、これにさらに2,000語追加したオックスフォード5000はCEFR B2-C1レベルとされています。

結果は、この動画の中で使われている単語はオックスフォード5000の5,000語の内、CEFR B2レベルで97%網羅されていることが分かりました。

オックスフォード5000よりも2,000語少ないオックスフォード3000でも95%が網羅されていましたので、改めてオックスフォード 大学出版局の厳選した単語のスゴサに驚かされます。

研究によると文書の98%の単語が分かれば理解に支障が無いとも言われています。

過去に紹介した日本を紹介する動画などは、僕たち日本人に背景知識のある内容に動画という補足情報が追加されているという理由から、 文字情報のみを前提に研究結果が提唱する98%よりも少しハードルを下げて95%の単語の網羅率をレベル判定の基準にしていました。

今回はかなり複雑な内容であることと、WPMが222とネイティブのナチュラル・スピードに近いことから、研究結果が提唱する98%に近い CEFR B2レベルと判断しました。

YouTubeチャンネルMatt vs Japan
タイトルSentence Cards vs Vocab Cards: In-Depth Comparison
URLhttps://www.youtube.com/watch?v=GLfmKWhLhjk
CEFERB2
カバーする単語97%
TOEIC (R&L) の目安785 - 940
使用されている単語数3141words
Oxford 5000 の以外の単語
(Unclassified)
58 words
総センテンス数123 センテンス
平均語数(1センテンス当たり)26.7 words
WPM222 WPM
再生時間15分02秒
CEFR levelNumber of words% of total累積%
A12543 単語81%81%
A2271 単語9%90%
B191 単語3%92%
B2138 単語4%97%
C140 単語1%98%
Unclassified58 単語2%100%
合計3141 単語  

以下にオックスフォード5000の分類に従って、動画内で使われている単語を載せておきます。(地名などの固有名詞や数字、%などの記号は除外してあります)

オックスフォード5000 以外の単語(Unclassified)
adjectives
anime
backside
bark
beginner
beginners
bilingual
bolstering
cloze
comprehend
comprehending
comprehensible
comprehension
conjure
cons
cumbersome
deletion
disambiguating
discord
exhausting
fluency
footing
gist
gonna
gravitate
hassle
immersion
intration
intuition
la
lashing
learner
learners
ll
monolingual
monolingualy
nouns
nuance
optionally
popularized
pros
quadrant
quiz
refold
streamlined
stressful
stringent
succinct
synergistic
tex
timewise
tiring
transitioning
unavoidable
verbs
vocab
vocabulary
走る
OPAL written words
ability
above
access
acquire
additional
Additionally
address
advantage
allow
allows
Although
although
amount
appropriate
area
argument
arguments
associated
assuming
basis
benefit
between
broader
broadly
burden
can
categories
category
claimed
clearly
common
commonly
community
comparing
comparison
comprehensive
conclusion
conditional
confirm
confirming
consider
consists
contain
contains
content
context
contribution
create
created
creates
criteria
crucial
currently
dealing
definition
definitions
degree
demonstrate
dependent
depending
description
develop
different
difficult
directly
distinction
distinctions
effective
efficiently
emotional
emphasize
equivalent
essence
essentially
example
exclusive
exclusively
experience
experienced
experiment
explain
expressed
extensive
fact
field
finding
focus
focused
focusing
form
framework
fully
function
functions
future
general
generally
goal
guidance
high
ideal
image
images
important
improve
include
including
individual
inducing
information
input
intermediate
isolated
issue
issues
language
large
learning
less
level
link
many
matter
meaning
meanings
means
member
mental
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might
mix
most
multiple
natural
naturally
need
new
note
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opportunity
option
order
other
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overall
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per
personal
perspective
point
points
presented
pressure
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process
produce
production
Production
proposed
quality
questions
reason
reasons
recent
recognize
recommend
recommends
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reflecting
reinforce
related
relatively
relevant
rely
results
review
right
role
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select
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sense
shift
showing
significant
similar
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situations
stage
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summarize
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type
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use
used
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view
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whole
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C1 Oxford 5000
burden
ceases
cultivate
distinction
distinctions
dubbed
essence
exclusive
exclusively
forth
frustrating
guidance
hint
inclined
inducing
intermediate
lengthy
regardless
straightforward
suck
superior
versus
workout
B2 Oxford 5000 excluding Oxford 3000
abstract
activate
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audio
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broadly
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format
formats
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hook
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somehow
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unfortunate
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B2 Oxford 3000
acquire
additional
anger
appropriate
associated
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basically
broader
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contribution
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emphasize
entire
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