photo zoo (动物园)
photos zoos tomatoes tomato (西红柿) hero (英雄)
heroes
骑着水牛（buffaloes）的英雄们 (heroes)爱吃西红柿(tamatoes)和马 铃薯(potatoes)。
其他以“o”结尾的单词直接加“S”
piano--- pianos radio--- radios photo--- photos
辅音字母+y结尾的：y-的：y---+s
3. 以“辅音字母+y”结尾的名词， 应改y为i，再加-es。
family ly families
comedy dy
(喜剧)
comedies
4. 以“元音字母+y”结尾的名词， 直接在词尾加-s构成复数形式 。
boy oy day ay
boys days
city
cities strawberries keys
(城市)
strawberry
(草莓)
key
leaves
rule
以f或者以fe结尾的单词， 通常把f或者fe变成v,再加es 例：wife, knife, life
5. 以f或fe结尾的名词，先将f或fe 变成v，再加-es构成复数形式。
1.一般情况下,直接在名词词尾加-s. 2.以s,x,sh,ch结尾的名词,在词尾加-es. 3.以辅音字母加y结尾的名词，要变y为i再加-es. 4.以“元音字母+y”结尾的名词，直接在词尾加-s 5.以f或
fe结尾的名词，先将f或 fe变为v,再加-es. 少数词加-es
tomato----tomatoes
rule
buses
以字母 s, sh, x, ch结尾的单词， 变为复数时在其后加es
dish--- dishes bus--- buses fox--- foxes
rule
bus fox
(狐狸)
buses
foxes
dish (盘子)
dishes
city---- cities
key---- keys
a watermelon
many watermelons
a peach
many peaches
a tiger a monkey
a watermelon
a giraffe
an elephant
an apple
an orange
你们发现了a 和an 的区别吗？ 区别在哪呢？
当人或事物只有一个的时候，成为单 数。习惯上，我们用a ,an 或 one 来表 示这种单个的数量。
I you
–
– –
we
you they
he / she / it
am / is
–
–
are
Thank You！
Let's go to the zoo!
a tiger
a tiger
two tigers
three tigers
an elephant
two elephants
three elephants
eight elephants
a big elephant
a monkey
a monkey
rule
7.部分单词单复数相同
a fish
many fish
a sheep
two sheep
单复数同形的单词： fish--- fish Chinese --- Chinese sheep --- sheep Japanese --- Japanese deer --- deer
8.部分单词复数形式不规则
seven kangaroos
a fox
a fox
two foxes
five foxes
a wolf
a wolf
two wolves
seven wolves
Let's buy some fruits!
an apple
many apples
an orange
many oranges
a peach
a strawberry
a watermelon
a 和 an 的区别在于：
“a” 用在以辅音音素开头的单词前 “an” 用在以元音音素开头的单词前
a cherry
an ice-cream
an egg
an orange
an apple
练习：
an __ ear an __ actor
four children
a child
a mouse
two mice
部分不规则名词的复数： man --- men woman --- women child --- children mouse --- mice foot --- feet tooth --- teeth
• Sum up:
knife half
knives halves
“小偷”(thief)的“妻子”(wife)用“刀 子”(knife)和 “树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。
wife
(妻子)
wives leaves
wolves roofs
leaf
(树叶)
(狼)
wolf roof
(屋顶)
two monkeys
three monkeys
a giraffe
a giraffe
two giraffes
four giraffes
a snake
a snake
a snake
many snakes
a kangaroo
three kangaroos
three kangaroos
bed-- beds hero--heroes family- families dictionary-- dictionaries question-- questions leaf-- leaves party-- parties cup-- cups
单数
this –
复数
these
those
that
a watch
five watches
many wolves
a wolf
• 可数名词单数变复数的规则
flowers moutains clouds rule
一般情况直接在名词 后面加“S”
name
names pens cards
pen
card
ruler
rulers
watches boxes
ａ window __ ａ __ rabbit ａ ＿big elephant
an __ English book an ＿umbrella
an ＿orange dress an ＿hour
那它们要怎么说呢？
可数名词复数的用法
an apple
three apples
z/
a tomato
three tomatoes
6.以o结尾的名词，一般直接加-s,
potato----potatoes
7.特殊变化的单词要熟记
child----children
man----men
tooth----teeth
给下列可数名词加复数．
bird-- birds card-- cards lady-- ladies orange--oranges ruler-- rulers photo-- photos friend-- friends boy-- boys watch-- watches girl-- girls case-- cases cat-- cats wife-- wives tree-- trees key-- keys
巧记：
“小偷”(thief)的“妻 子”(wife)用“刀子”(knife) 和“树叶”(leaf) 把“狼”(wolf)劈成两
potato---potatoes
tamato---tamatoes
hero---heroes
buffalo---buffaloes
6. 以o结尾的名词，有的加-s, 有 的加-es构成复数形式。