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CH结尾的单词什么时候加s什么时候加es?

来源:未知 作者:佚名 日期:2019-09-21 浏览:58

什么情况把y变i加es_复数什么时候加es_什么时候名词后加es

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一、绝大多数的可数名词的复数形式,是在该词末尾加上后辍-s。

读音变化:结尾是清辅音读[s],结尾是浊辅音或元音读[z]。

例:friend→friends; cat→cats; style→styles; sport→sports; piece→pieces

二、凡是以s、z、x、ch、sh结尾的词,在该词末尾加上后辍-es构成复数。

读音变化:统一加读[iz]。

例:bus→buses; quiz→quizzes; fox→foxes; match→matches; flash→flashes

三、以辅音字母+y结尾的名词,将y改变为i,再加-es。

读音变化:加读[z]。

例:candy→candies; daisy→daisies; fairy→fairies; lady→ladies; story→stories

四、以-o结尾的名词,如果不是外来词或缩写什么时候名词后加es,就加-es,否则加-s构成复数。

读音变化:加读[z]。

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复数什么时候加es_什么情况把y变i加es_什么时候名词后加es

反例:silo→silos; piano→pianos(外来词); photo→photos; macro→macros(缩写词)

五、以-f或-fe结尾的名词,多为将-f或-fe改变为-ves,但有例外。

读音变化:尾音[f]改读[vz]。

例:knife→knives; life→lives; leaf→leaves; staff→staves; scarf→scarves

反例:roof→roofs

六、以-us结尾的名词(多为外来词),通常将-us改变为-i构成复数。

读音变化:尾音[Es]改读[ai],其中[kEs]要改读为[sai],[gEs]要改读为[dVai]。

例:fungus→fungi; abacus→abaci; focus→foci; cactus→cacti; cestus→cesti

七、以-is结尾的名词,通常将-is改变为-es。

读音变化:尾音[is]改读[i:z]。

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八、以-ix结尾的名词,通常将-ix改变为-ices,但有例外。

读音变化:尾音[iks]改读[isi:z]。

什么时候名词后加es_复数什么时候加es_什么情况把y变i加es

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九、以-um结尾的名词什么时候名词后加es,将-um改变为-a。

读音变化:去掉鼻尾音[m]。

例:forum→fora; stadium→stadia; aquarium→aquaria; datum→data; vacuum→vacua

十、以-a结尾的名词,在该词末尾加上后辍-e。

读音变化:尾音[E]改读[i:]。

公式 formula, formulae(pl.)。公式 formula, formulae(pl.)。 the larva feeds actively in soil, and adult flies of both sexes catch other insects in flight. among mosquitoes, black flies, and related bloodsucking flies, the larvae have characteristic structures and live active lives under water。

十一、部分单词的复数形式不变。

读音变化:保持原音。

例:fish→fish; sheep→sheep; cattle→cattle; deer→deer; salmon→salmon

十二、极少数单词,其复数形式没有任何规律。

读音变化:没有规律。

例:man→men; woman→women; child→children; person→people; ox→oxen

什么时候名词后加es_复数什么时候加es_什么情况把y变i加es

十三、一些单数词得加en才能变成复数词:

例:ox→oxen; child→children; brother→brethren

十四、一些单数词得改头换面一番,才能变成复数词

例:analysis→analyses分析; basis→bases基础; datum→data数据; foot→feet;

formula→formulae/formulas公式; goose→geese; louse→lice虱子; man→men

mouse→mice; medium→media/mediums媒介; memorandum→memoranda/memorandums备忘录;

radius, radii 半径。这条语句同时将每个圆角的"水平半径"(horizontal radius)和"垂直半径"(vertical radius)都设置为15px。这个borde-radius属性其实也是一个简写值,它分别是 border-top-left-radius(左上圆角半径), border-top-right-radius(右上圆角半径), border-bottom-right-radius (右下圆角半径),border-bottom-left-radius(左下圆角半径),如下图所示:。

tooth→teeth; woman→women

十五、有些名词是单数、复数不分的

例:deer; fish; cannon; sheep; salmon 鲑鱼; trout 鳟鱼

十六、一些名词虽分单数、复数,但出现次数多的总是单数词

例:abscence; clothing; film; help; furniture家具; machinery机械; news; scenery风景; sugar;

traffic交通

什么时候名词后加es_复数什么时候加es_什么情况把y变i加es

十七、另一些名词则以复数词出现的机会较多

例:bellows风箱; clothes; police; shorts短裤; scissors剪刀; spectacles眼镜; shears大剪刀

trousers长裤; wages工资

十八、compound nouns,这类复数词是以主要的名词来表示

例:daughter-in-law→daughters-in-law 媳妇; father-in-law→fathers-in-law岳父

man-of-war→men-of-war兵舰; maid-servant→maid-servants

step-son→step-sons晚子; son-in-law→sons-in-law

十九、若表达具体数目,要借助数量词

例:pair(对,双); suit(套); a pair of glasses; two pairs of trousers

二十、另外还有一些名词,其复数形式有时可表示特别意思,

例:goods货物,waters水域,fishes(各种)鱼

二十一、除人民币元、角、分外,美元、英镑、法郎等都有复数形式。

例:a dollar, two dollars; a meter, two meters



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