把下列单词变成复数wife –half - shelf -thief -roof - gulf -chief

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把下列单词变成复数wife –half - shelf -thief -roof - gulf -chief
把下列单词变成复数wife –half - shelf -thief -roof - gulf -chief

把下列单词变成复数wife –half - shelf -thief -roof - gulf -chief
wives
halves
shelves
thieves
roofs
gulves
chiefs
以f或fe结尾的名词,多数变f为v加es: wives, knives.但有些词只加s: roofs, proof s, chiefs.
读音变化：尾音[f]改读[vz]
可以参考下,希望对你有帮助

wife-wives
half-halves
shelf-shelves
thief-thieves
roof-roofs
gulf-gulves
chief-chiefs

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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. 上述a和b两种方法均可，如handkerchief: handkerchiefs / handkerchieves。
你的归纳方式不错在英语学习中尤其是背单词就要寻找这样的规律像串珠子一样把零散的只是穿起来这样才能事半功倍。

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