爱华网【不可数名词】
1、最常见的不可数名词有：advice, baggage, change(零钱), furniture, hair, homework, information, knowledge, luggage, money, news, progress, traffic
2、其它不可数名词还有：absence, age, anger, courage, energy, equipment, experience, failure, fear, food, fun, health, ice, industry, kindness, labour, luck, marriage, music, nature, paper, peace, pleasure, power, pride, rain, research, respect, safety, salt, sand, silence, sleep, strength, snow, technology, time, trade, transport, travel, trust, truth, waste, water, wealth, weather, wind, work（工作）
【集合名词】
有些集合名词，ommittee,council,crew,crowd,family,gang,government,group,mob,staff,team, union等，在意义上是复数，但在语法形式上是单数，这类名词作主语的主谓一致问题往往遵循“语法一致”或“意义一致”原则。
例如：
The committee has/have decided to dismiss him.
A council of elders governs the tribe.
The present government is trying to control inflation.
The school staff are expected to supervise school meals.
（一）通常作复数的集体名词
包括police,people, cattle, militia, vermin等，这些集体名词通常用作复数。
例如：
The British police have only very limited powers.
The militia were called out to guard the borderland.
It seems the cattle on the sides of the dikes were the only living creatures in these desolate surroundings.
（二）通常作不可数名词的集体名词
通常作不可数名词的集体名词，包括poultry,foliage，machinery, equipment,furniture, merchandise等,这类名词后的动词用单数形式。
例如：
Poultry is expensive at this time of year.
That green foliage was restful.
The merchandise has arrived undamaged.
All the machinery in the factory is made in China.
The suite of furniture he bought was of contemporary style.
The equipment of the photographic studio was expensive.
（三）可作单数也可作复数的集体名词
可作单数也可作复数的集体名词,包括audience, committee, crew, family, government,jury等。
例如：
The audience was/were enthusiastic on the opening night of the play.
The committee has/have decided to dismiss him.
The jury is/are about to announce the winners.
The government has/have discussed the matter for a long time.
【不规则名词】
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。 如： an Englishman，two Englishmen. 但German不是合成词，故复数形式为Germans；Bowman是姓，其复数是the Bowmans。
2）单复同形 如： 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。 如： people police cattle 等本身就是复数，不能说 a people，a police，a cattle，但可以说 a pers on，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。 如： 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. >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
【双写】
在不特殊的情况下，当原形最后一个音节为重读闭音节时，需要双写。比如：swim——swimming
run——running
put——putting
begin——begging
想不起来都是双写的.
不一定都只有一个元音字母
【规律】
除了最后一个双写比较有规律之外，都没有规律，要多读多练，慢慢就都记住了。不要花太多时间在找规律上，遇见一个记一个。
