名词复数的规则变化:
1.以y结尾的专有名词,或元音音素+y结尾的名词变复数时,直接加s变复数:
如:two Marys;the Henrys;
monkey---monkeys;holiday---holidays;
比较:
层楼:storey ---storeys;story---stories;
2.以o结尾的名词,变复数时:
a.加s,
如:photo---photos;piano---pianos;
radio---radios;zoo---zoos;
b.加es,
如:potato--potatoes;tomato--tomatoes;
c.可以加s和,
如:zero---zeros / zeroes
3)以f或fe结尾的名词变复数时:
a.加s,
如:belief---beliefs;roof---roofs;
safe---safes;gulf---gulfs;
b.去f,fe加ves,
如:half---halves;knife---knives;
leaf---leaves;wolf---wolves;
wife---wives;life---lives;
thief---thieves;
c.均可f和ves,
如: handkerchief---handkerchiefs / handkerchieves