2ch英語ボキャビルスレから転載

466 ：名無しさん＠英語勉強中：2010/03/16(火) 18:01:25

名称-----*見出し語---token----word family----type

1.SVL-----12,000--12,000 (11,811)--8,543--11,996 (11,807)

2.LDAE----22,065--24,458 (23,105)--11,658--17,423 (16,116)

3.RHWIED--15,775--16,849 (15,718)--10,631--14,337 (13,259)

4.NVA-----24,055--27,700 (25,030)--12,129--20,186 (17,727)

(　　 )内はOn List only

Random House Webster's Intermediate English Dictionary (RHWIED)

token 延べ語数

個々の語をそれぞれ1語と数える

type (異なり語 (数))

個々の語が2回以上繰り返された場合、1回のみ数える

lemma　基本形＋活用形

wait, waits, waited, waiting：1語

society, societies, society’s, societies’：1語

word family　基本形＋活用形＋派生形

leak, leaks, leaking, leaked, leaky, leakiness, leakage, leaker：1語

468 ：名無しさん＠英語勉強中：2010/03/16(火) 18:09:38

How many words do native speakers know?

At present the best conservative rule of thumb that we have is that up to a vocabulary size of around 20,000 word families, we should

expect that native speakers will add roughly 1000 word families a year to their vocabulary size. That means that a five year old

beginning school will have a vocabulary of around 4000 to 5000 word families. A university graduate will have a vocabulary of around

20,000 word families (Goulden, Nation and Read, 1990).

ネイティブの語彙力≒２万語（word family）

471 ：名無しさん＠英語勉強中：2010/03/16(火) 18:23:03

語彙習得速度

native speakers will add roughly 1000 word families a year to their vocabulary size.

ネイティブ　1000語(word family)/年

2010-09-16