小学英语单数名词变复数规律及练习

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单数名词变复数的规律

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

二、以s,x,ch,sh结尾的词,末尾加es变成复数

例:bus→buses; fox→foxes; match→matches; flash→flashes ;box →boxes;

watch →watches; actress →actresses; class →classes; dress →dresses; sandwich →sandwiches; toothbrush →toothbrushes; waitress(女侍者) →waitresses

三、以辅音字母+y结尾的名词,将y改变为i,再加es

例:candy→candies; daisy(雏菊)→daisies; fairy→fairies; lady→ladies; story→stories strawberry →strawberries; baby →babies; puppy→puppies; library →libraries; dictionary →dictionaries; cherry →cherries; activity →activities ,country—countries,fly—flies.

区别: 元音字母+y 结尾的名词变复数时,直接加s

变复数【元音字母a,e,o,u,i】monkey---monkeys holiday---holidays boy---boys key---keys

四、以o结尾的名词,有生命的加es,无生命的加s构成复数。 口诀:黑人和英雄吃土豆、西红柿和芒果 negroes and heroes eat tomatoes and potatoes

五、以-f或-fe结尾的名词,多为将-f或-fe改变为-ves

例knife→knives; life→lives; leaf→leaves; scarf(围巾)→scarves

口诀:树叶半数自己黄,妻子拿刀去杀牛;

架后窜出一只狼,就像小偷逃命忙。

解释:leaf(树叶)half(一半)self(自己) wife(妻子) knife(刀子)calf (小牛) shelf (架子)wolf(狼) thief(小偷)life(生命)

六、还有部分单词单复数同行

口诀: 中日警察好友来聚会,鹿羊鱼牛齐齐把家回。

解释:Chinese, Japanese ,police,people, deer, sheep, fish ,cattle

七、极少数单词,其复数形式没有任何规律。

口诀:男士女士a变e; 鹅牙脚o都变e; 孩子们想去天安门,原形

后面ren; 老鼠虱子本爱牛, mouse, louse,ox.

解释:goose-geese; mouse-mice; foot-feet. man-men; woman-women; tooth-teeth;foot-feet,child-children,louse-lice,ox-oxen

练习

一、写出下列名词的复数形式 。

orange ________ class_________ text __________ piano_________

child_________

bed__________ fox___________

monkey_______ shelf__________ foot___________

country________ toy__________

sheep_________ potato_________ radio__________ fish___________ mouse________

thief __________ woman________ Chinese_______

bus ________ dress_______

match ________ flash_______ box _______

potato________ candy________ puppy________

holiday_______ glass_______ half________

wife________

library________ tree________ tomato_______ photo______ life_______ deer_______

knife________

people________ wolf_______

tooth_________ man ________ baby________

二、填空。 1. These _______ _____ hard. 2. This ________ ____ soft.

3. Can I feel those smooth _________ ?(弹珠) 4. This ___ hard work. 5. I like _________(this)tissues.

6. I don’t like __________(that) brush.

7. I would like_____(eat) two _____ ____________.(ice cream) 8. The _______(石头) are nice.


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