可数名词单数复数法:
A.通常直接添加-s,如book-books、bag-bags、cat-cats和bed-beds。发音:清辅音后读[s],桌音和元音后读[z]。
b.以s. x. sh. ch结尾,加-es,如:bus-buses, box-boxes, brush-brushes, watch-watches ;读音:[iz]。
c.以“辅音字母+y”结尾,变y为i, 再加-es,如:family-families, strawberry-strawberries ;读音:[z]。
d.以“f或fe”结尾,变f或fe为v, 再加-es,如:knife-knives ,thief-thieves;读音:[z]。
e.以“o”结尾的词,分两种情况
1)有生命的+es 读音:[z] 如:mango-mangoes tomato-tomatoes hero-heroes
2) 无生命的+s 读音:[z] 如:photo-photos radio-radios
f. 不规则名词复数:
man-men, woman-women,
policeman-policemen,
policewoman-policewomen,
snowman-snowmen, mouse-mice,
child-children, foot-feet,
tooth-teeth, fish-fish, people-people。
除此之外,还有一部分名词单复数同形,如:
fish鱼,deer鹿,sheep绵羊,works(工厂),means手段,Swiss瑞士人,Chinese中国人,news 新闻,goods 商品
有一些名词则只有复数形式:
trousers裤子,pants裤子,shorts短裤 glasses眼镜,compasses圆规,scales天平,pliers钳子,clips剪子
“某国人”的复数有三种类型:
(1)Chinese, Japanese, Swiss 三国人单数复数同形,不需加s;
(2)Englishman, Frenchman, Dutchman复数要把 man 变为men;
(3)其他各国人以–an, -ian收尾的均直接加s。如:Americans, Australians, Indians等。
可依照这个口诀记忆:中日不变,英法变,其他”s”加后面。
不可数名词一般没有复数形式,只有单数形式,它的前面不能用不定冠词a / an ,若要表示它的个体意义时,一般需要将其量化。
不可数名词如何量化:就是在不可数名词前面加上“数词+量词+of”,比如:
a piece of bread( paper(纸), cloth(布), coal(煤), news(新闻), advice(意见), information(信息), , meat(肉) )
an item of information 一则情报
a slip of paper 一张纸条
a length of cloth 一段布料
a cake of soap 一块肥皂
a tube of tooth-paste 一条牙膏
a bottle of ink 一瓶墨水 等。
当量词可数,且前面的数词大于一时,量词需要用复数形式,
如two bottles of water 两瓶水 two pieces of paper 两张纸 等;
同时,可数名词也有相应用法,如:a box of apples 一箱苹果 six boxes of apples 六箱苹果 等。
最常见的不可数名词有:
advice, baggage, change(零钱), furniture(家具), hair, homework, information, knowledge, luggage(行李), money, news, progress, traffic
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, world等。
上面提到的可数名词和不可数名词并不是一成不变的。英文中的很多词都是一词多义,名词也不例外,同是一个词在一种情况下是可数名词,而在另一种场合却是不可数名词,
如:可数名词:
a tin 一只罐头 a relation 亲属 an iron 一把熨斗 a democracy民主国家 a glass 一只玻璃杯 a beauty美人,美的东西 A wood 一片树林 a power
不可数名词:
tin 锡 relation 关系 Iron 铁 democracy民主 glass 玻璃 beauty 美 Wood 木头 power威力,电力。
注意:当名词充当主语时,谓语动词在人称、数等方面必须与其保持一致--即"主谓一致性"的问题。
Exercise:
一、写出下列名词的复数形式
1、orange 2、class
3、text 4、monkey
5、piano 6、child
7、shelf 8、bed
9、country 10、family
11、toy 12、foot
13、Japanese 14、radio
15、photo 16、army
17、tomato 18、fox
19、woman 20、knife
22、sheep
二、选择填空
1、There ()on the wall .
They are very beautiful.
A. are photoes B. are photos
C. is a photo D. is photos
2. This car ()made in Shanghai.
A. is B .are C .were D .has
3. There are four() and two() in the group.
A. Japanese, Germen
B Japaneses, Germen
C. Japanese,German
D.Japanese, Germans
4. That’s ()art book.
A. an B. a C. the D are
5. The boys have got() already.
A. two bread
B. two breads
C. two pieces of bread
D. two piece of bread
6. The old man wants() .
A. six boxes of apples
B. six boxes of apple
C. six box of apples
D. six boxs of apples
7. There ()some ()in the river.
A. is, fish B. are, fishs C. is, fishs D. are, fish
8. There ()two() in the box.
A. is watch B. are watches
C. are watch D. is watches
9. We should clean ()twice a day.
A .our tooth B. our tooths
C. teeth D. our teeth
10.The _____ meeting room is near the reading room.
A. teacher B.teacher’s
C.teachers’ D.teachers
11. In Britain _____ are all painted red.
A. letter boxes B.letters boxes
C. letter box D.letters box
12.There are_____ birds in that big tree.
A. hundreds of B. five hundreds of
C. five hundred of D. hundred of