很多孩子在学英语的时候,遇到单复数变化常常觉得很困惑,也很容易混淆。今天和大家分享以下小学英语单复数的变化规则,希望帮助孩子们解决这个学习问题。建议家长们收藏和转发!
 
一、名词复数的规则变化
1)一般情况加 s. eg: map-maps bag-bags car-cars
2)以 s,sh,ch,x 等结尾的词加 es. eg:bus-buses watch-watches
3)以 ce,se,ze,(d)ge 等结尾的词加 s eg: license-licenses
4)以辅音字母+y 结尾的词变 y 为 i 再加 es eg: baby---babies
 
二、名词复数的不规则变化
1)child---children foot---feet tooth---teeth mouse---mice man---men woman---women
注意:与 man 和 woman 构成的合成词,其复数形式也是 -men 和 -women。
 
2)单复同形
eg: deer,sheep,fish,Chinese,Japanese li,jin,yuan,two li,three mu,four jin 但除人民币元、角、分外,美元、英镑、法郎等都有复数形式。如: a dollar, two dollars; a meter, two meters
 
3)集体名词,以单数形式出现,但实为复数。
eg:people police cattle 等本身就是复数, 不能说 a people, a police,
a cattle,但可以说 a person,a policeman,a head of cattle,the English,the British,the French,the Chinese,the Japanese,the Swiss 等名词,表示国民总称 时,作复数用。
eg: The Chinese are industries and brave. 中国人民是勤劳勇敢的。
 
4)以 s 结尾,仍为单数的名词,
如: a. maths,politics,physics 等学科名词,为不可数名词,是单数。
b. news 是不可数名词。
c. the United States,the United Nations 应视为单数。 The United Nations was organized in 1945. 联合国是 1945 年组建起来 的。
d. 以复数形式出现的书名,剧名,报纸,杂志名,也可视为单数。 "The Arabian Nights" is a very interesting story-book. <<一千零一夜>>是一本非常有趣的故事书。
 
5) 表示由两部分构成的东西,如:glasses (眼镜) trousers, clothes 若表达具体数目, 要借助数量词 pair(对, 双); suit(套); a pair of glasses; two pairs of trousers
 
6)另外还有一些名词,其复数形式有时可表示特别意思,如:goods 货物,waters 水域,fishes(各种)鱼
 
三、特殊句型单复数
1)当 there be 句型的主语是一系列事物时,谓语应与最邻近的主语保持一致。 There is a pen, a knife and several books on the desk.. There are twenty boy-students and twenty-three girl-students in the class.
 
2)当 either… or… 与 neither… nor, 连接两个主语时,谓语动词与 最邻近的主语保持一致。 如果句子是由 here, there 引导,而主语又 不止一个时,谓语通常也和最邻近的主语一致。 Either you or she is to go. Here is a pen, a few envelops and some paper for you.
 
3) 当主语后面跟有 with, together with, like, except, but, no less than, as well as 等词引起的短语时,谓语动词与前面的主语一致。 The teacher together with some students is visiting the factory. He as well as I wants to go boating.
 
四、谓语需用单数
1)代词 each 和由 every, some, no, any 等构成的复合代词作主语, 或主语中含有 each, every, 谓语需用单数。 Each of us has a tape-recorder. There is something wrong with my watch.
 
2)当主语是一本书或一条格言时,谓语动词常用单数。 The Arabian Night is a book known to lovers of English. <<天方夜谭>>是英语爱好者熟悉的一本好书。
 
3)表示金钱,时间,价格或度量衡的复合名词作主语 时,通常把 这些名词看作一个整体, 谓语一般用单数。 (用复数也可, 意思不变。 ) Three weeks was allowed for making the necessary preparations. Ten yuan is enough.