| 英语中有少数可数名词的复数构成是不规则的。   1. 改变元音字母,如:foot — feet        goose — geese
 tooth — teeth       mouse — mice
 man — men        woman — women
 gentleman — gentlemen  policewoman — policewomen
   2. 词尾变化,如:child — children ox — oxen
   3. 单复数同形,如:deer      sheep    means
 series     species    Swiss
 jin(斤)    li(里)   yuan(元)
    –ese结尾的国名也同形,如:Chinese   Japanese    Portuguese
   4. 有些外来词仍保留原来的复数形式,如:analysis — analyses (分析)
 basis — bases (基础)
 crisis — crises (危机)
 criterion — criteria (标准)
 diagnosis — diagnoses (诊断)
 phenomenon — phenomena (现象)
 stratum — strata (阶层)
 thesis — theses (论文)
 
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