单复数变化规则_单复数的变化规则

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一、二、规则的可数名词的复数变化规则:

1.一般情况加s : book--books mouth---mouths house---houses

girl---girls

2.以s、sh、ch、x结尾的加es : cla---claes box----boxes match----matches

3.辅音字母 + y结尾的变 y为 i加es: city---cities country----countries party----parties factory----factories

4.以o结尾的词 +es的只有以下词:heroes、Negroes、tomatoes potatoes、zeroes/zeros

以o结尾并且词尾有两个元音字母+s： radios、zoos、bamboos、(pianos、photos)

5.以f，fe 结尾的 变f或fe为v +es :

thief，wife，life，knife，wolf，half，leaf，shelf

eg.The thief’s wife killed three wolves with some leaves and knives in half of her life.二、不规则的可数名词的变化规则:

1.man-men, woman-women, tooth-teeth, foot-feet, goose-geese child-children, mouse-mice，2.单复数相同: sheep, deer, Chinese, Japanese Swi.3.以man, woman 修饰名词构成合成词时,两个词都变化.man servant-men servants.(boy/girl students

三、名词词尾的读音规则:

A.在[ p] [t] [k] [f]等清辅音后读[s] cups，hats，cakes，roofs

B.在[s] [z] [∫] [t∫]等音后读[iz] glaes, faces, roses.C.在其他情况下读作[z] beds days cities knives.D.以th结尾的词原来读[s ] 加词尾后多数读[z ] 如: mouth-mouths path-paths;

但是也有不变化的，如: month-months, ninth-ninths, youth-youths.