Singular and Plural Nouns AI 批改练习与解释

用互动练习学习 Singular and Plural Nouns。翻译句子,大声说出答案,并在 iOS 和 Android 上获得带解释的 AI 反馈。

Singular and Plural Nouns 使用

单数是指当我们谈论一个人、事物或想法时名词所用的形式:一本书、一个苹果。
复数是指当数量有两个或更多时所用的形式:书、苹果。
本主题帮助你使用正确的名词形式,选择像a/an这样的词,构成复数形式,并正确搭配this / that / these / those、it / they和is / are等词。

It is a dictionary.
这是一本词典。
This is a pen, and these are pens.
这是一支钢笔,这些是钢笔。

Singular and Plural Nouns 形式

大多数可数名词都有单数和复数形式。单数可数名词通常不能单独使用,前面需要有一个词:这通常是a/an,但也可以是the、this、that、my以及类似的词。复数形式通常通过加-s或-es构成,但有些名词有不规则复数形式。

Singular: a pen, an apple, this book, that phone, my bag, it is ...
Plural: pens, apples, these books, those phones, my bags, they are ...

✅ It is a box.
✅ They are boxes.
✅ That is an old man.
✅ Those are old men.

Singular and Plural Nouns 规则

  • 单数可数名词前通常需要有一个词。这通常是a/an,但也可以是the、this、that、my以及类似的词。我们通常在辅音音素前用a,在元音音素前用an。
    ✅ a pen
    ✅ a river
    ✅ an apple
    ✅ an elephant
    ✅ this book
    ✅ my phone
  • 要把名词变成复数,我们通常加上-s。
    ✅ book → books
    ✅ dog → dogs
    ✅ phone → phones
  • 如果名词以 -ch、-sh、-s、-ss、-x 结尾,我们通常加上 -es。
    ✅ watch → watches
    ✅ dish → dishes
    ✅ bus → buses
    ✅ box → boxes
  • 如果名词以辅音字母 + y结尾,y通常变为ies。如果y前面是元音字母,我们通常只需加上-s。
    ✅ country → countries
    ✅ baby → babies
    ✅ boy → boys
    ✅ day → days
  • 一些以 -f 或 -fe 结尾的名词,其复数形式变为 -ves。
    ✅ leaf → leaves
    ✅ wife → wives
    ✅ knife → knives
  • 我们把 this / that 和单数名词一起使用,把 these / those 和复数名词一起使用。动词也必须一致:is 用于单数,are 用于复数。
    ✅ This is a pen.
    ✅ That is a phone.
    ✅ These are pens.
    ✅ Those are phones.
  • 有些名词有不规则复数形式,所以你需要记住它们。
    ✅ man → men
    ✅ woman → women
    ✅ child → children
    ✅ person → people

Singular and Plural Nouns 练习和测试

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Singular and Plural Nouns
提示

用这个练习来检查你是否能在真实句子中运用单数名词和复数名词。

Singular and Plural Nouns 常见错误

常见错误:在可数单数名词前遗漏词语,复数形式构成错误,以及混淆this / these、that / those和is / are。

❌ Barcelona is big city.
✅ Barcelona is a big city.
❌ It is an box.
✅ It is a box.
❌ They are watchs.
✅ They are watches.
❌ Two countrys.
✅ Two countries.
❌ Two leafs.
✅ Two leaves.
❌ These is my book.
✅ This is my book.
❌ Those is phones.
✅ Those are phones.

Singular and Plural Nouns 句子

This is an interesting story.
这是一个有趣的故事。
They are my emails.
它们是我的电子邮件。
Those are new boxes.
那些是新盒子。
I can see a church and two buses.
我能看到一座教堂和两辆公交车。
The boy has a toy, and the girls have toys.
男孩有一个玩具,女孩们有一些玩具。
There is a child in the room, and there are three children outside.
房间里有一个孩子,外面有三个孩子。

Singular and Plural Nouns 例子

There is a book on the table and two notebooks in the bag.
桌子上有一本书,包里有两本笔记本。
She has a child, and her sister has three children.
她有一个孩子,而她的姐姐有三个孩子。
I saw a man near the door and two women in the hall.
我看见门附近有一个男人,大厅里有两个女人。
He adopted a dog and later rescued two cats.
他领养了一只狗,后来又救助了两只猫。
We picked a flower and bought some roses.
我们摘了一朵花,还买了一些玫瑰。
She found a key under the sofa and three coins in the drawer.
她在沙发底下找到了一把钥匙,在抽屉里发现了三枚硬币。
There was a bus at the stop and many cars on the road.
车站有一辆公共汽车,路上有许多汽车。
He wore a watch and carried two bags.
他戴着一块手表,提着两个包。
I heard a strange noise and then several loud sounds.
我听到一个奇怪的声音,接着又传来几声巨响。
They visited a museum and later explored old buildings.
他们参观了博物馆,后来又探索了古老的建筑物。

应用中提供的英语语法练习

Tenses

Adjectives/Adverbs

Conditionals

Pronouns

Sentences

Verbs

Modals

Nouns and Articles