來源:網(wǎng)絡(luò)資源 2022-04-25 15:42:53
復(fù)數(shù)的變換
1.在后面加s。如:fathers, books, Americans, Germans, apples, bananas
2.x, sh, ch, s, tch后加es。如:boxes, glasses, dresses, watches, wishes, faxes
3.(1)以輔音字母加y結(jié)尾的變y為i再加es 如:baby-babies, family-families, duty-duties, comedy- comedies, documentary-documentaries, story-stories
(2)以元音字母加y結(jié)尾的直接加s。如:day-days, boy-boys, toy-toys, key-keys, ways
4.以o結(jié)尾加s(外來詞)。如:radios, photos, 但如是輔音加o的加es:如: tomatoes西紅柿, potatoes馬鈴薯
5.以f或fe結(jié)尾的變f為v再加es(s)。如:knife-knives, wife-wives, half-halves, shelf-shelves, leaf-leaves, yourself-yourselves
6.單復(fù)數(shù)相同(不變的)有:fish, sheep, deer鹿子, Chinese, Japanese
7.一般只有復(fù)數(shù),沒有單數(shù)的有:people,pants, shorts, shoes, glasses, gloves, clothes, socks
8.單詞形式不變,既可以是單數(shù)也可以是復(fù)數(shù)的有:police警察局,警察, class班,同學, family家,家庭成員
9.合成的復(fù)數(shù)一般只加主要名詞,多數(shù)為后一個單詞。如:action movie-action movies, pen pal-pen pals; 但如果是由man或woman所組成的合成詞的復(fù)數(shù)則同時為復(fù)數(shù)。如:man doctor-men doctors, woman teacher-women teachers
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