摘要：特殊变化的单词有:(1)tooth--teeth.foot--feeth (2)man--men.woman--women.policeman--policemen,Frenchman--Frenchmen 请区别:Germanchild-children
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小博士：细心的同学们肯定发现了有些名词有单数(singular)和复数(plural)两种形式，而有些名词只有单数形式，这是怎么回事呢？让我来告诉你吧。英语中，名词按其所表示的事物的性质，可分为可数名词(countable noun)和不可数名词(uncountable noun)，可数名词有复数形式，不可数名词一般没有复数形式。名词单数变复数的变化规则见下表。
比一比，看谁写的单词多！
1 直接加-s的单词有：________________________________.
2 加-es的单词有：___________________________________.
3 变y为i再加-es的单词有：__________________________.
4 不规则变化的单词有：_______________________________.
查看习题详情和答案>>根据句意和汉语提示，用正确的单词填空。
1. It is ______ (有风的) today. Let's walk there.
2. Can I borrow some ______ (刷子) from Jim?
3. Look! Lucy is ______ (关闭) the window of our classroom.
4. My birthday is on______ (十二月) 20.
5. How many______ (国家) can you see on the map?
6. These books are______ (我的).
7. Can you see seven______ (盒子) under the desk?
8. We can see many ______ (孩子) in the park.
9. The______ (第五) day of a week is Thursday.
10. My ______ (脚) are big.
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2. Can I borrow some ______ (刷子) from Jim?
3. Look! Lucy is ______ (关闭) the window of our classroom.
4. My birthday is on______ (十二月) 20.
5. How many______ (国家) can you see on the map?
6. These books are______ (我的).
7. Can you see seven______ (盒子) under the desk?
8. We can see many ______ (孩子) in the park.
9. The______ (第五) day of a week is Thursday.
10. My ______ (脚) are big.
根据句意，用适当的单词填空。
1. I'm thinking about __________ (have) a very relaxing vacation.
2. How many __________ (tooth) does the baby have?
3. —I'm going to Tibet for a month.
—That sounds __________ (well).
4. I don't like honey, so __________ (not add) any honey to my tea, please.
5. Bring three bananas here and cut __________ (they) up.
6. My father __________ (buy) me a computer on my last birthday.
7. It rained heavily last Sunday. __________ (lucky) , I took an umbrella with me.
8. Linda is not a __________ (profession) singer. She just enjoys singing.
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2. How many __________ (tooth) does the baby have?
3. —I'm going to Tibet for a month.
—That sounds __________ (well).
4. I don't like honey, so __________ (not add) any honey to my tea, please.
5. Bring three bananas here and cut __________ (they) up.
6. My father __________ (buy) me a computer on my last birthday.
7. It rained heavily last Sunday. __________ (lucky) , I took an umbrella with me.
8. Linda is not a __________ (profession) singer. She just enjoys singing.
请对下列的英语词汇进行分类，有几个词是多余的。
white, eraser, small, arm, eight, skirt, cake foot,
blue, big, twenty, coat, banana, pencil
1. 属于数词的单词有：_________ _________
2. 表示身体各部位的名词有：_________ _________
3. 表示颜色的单词有： _________ _________
4. 表示服饰的名词有： _________ _________
5. 表示学习用具的名词有：_________ _________
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blue, big, twenty, coat, banana, pencil
1. 属于数词的单词有：_________ _________
2. 表示身体各部位的名词有：_________ _________
3. 表示颜色的单词有： _________ _________
4. 表示服饰的名词有： _________ _________
5. 表示学习用具的名词有：_________ _________
根据首字母提示或汉语提示和句意，写出正确的单词形式。
1. Does he ___________(有) big eyes?
2. We have two ___________(手).
3. They live on the ___________(五) floor.
4. May I take you a ___________ (口信)?
5. Ellen ___________ (乘) the bus to school.
6. Would you like something to d___________?
7. Three q___________ of the students are carrying the water.
8. Help y___________ to the dishes, kids.
9. Would you like a g___________ of milk?
10. I don't want any more noodles. I'm f___________.
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2. We have two ___________(手).
3. They live on the ___________(五) floor.
4. May I take you a ___________ (口信)?
5. Ellen ___________ (乘) the bus to school.
6. Would you like something to d___________?
7. Three q___________ of the students are carrying the water.
8. Help y___________ to the dishes, kids.
9. Would you like a g___________ of milk?
10. I don't want any more noodles. I'm f___________.