内容正文:
Unit 1 语法精讲精练
核心语法:be 动词(am /is/are)用法
一、基础认知:be 动词含义与人称搭配
be 动词翻译为 “是”,根据主语人称、单复数变化为三种形式:am, is, are
人称对应固定搭配(必背表格)
人称代词
搭配 be 动词
缩写形式
I(我,第一人称单数)
am
I’m
you(你 / 你们,第二人称单复数)
are
you’re
he /she/it(他 / 她 / 它,第三人称单数)
is
he’s / she’s / it’s
we /they(我们 / 他们,复数)
are
we’re / they’re
核心使用场景
介绍自己、他人姓名:I’m Liu Yu. His name is Tom.
介绍来自某地:She’s from Australia.
介绍年龄:I am 13 years old.
描述人物关系、班级、身份:We are classmates.
描述事物、动物、喜好:My favourite colour is blue.
二、三大标准句式(肯定句 / 否定句 / 一般疑问句)
1. 肯定句
结构:主语 + am /is/are + 其他
例句:I am from Chengdu. She is my new friend. They are twins.
2. 否定句(直接在 be 后加 not)
结构:主语 + am /is/are + not + 其他
缩写:am 无缩写;is not = isn’t;are not = aren’t
例句:
I am not twelve.
He isn’t from the USA.
They aren’t in Class Two.
3. 一般疑问句(be 动词提前放句首)
结构:Am / Is / Are + 主语 + 其他?
回答规则:用人称对应 be 动词简答,不能混用
Are you…? — Yes, I am. / No, I’m not.
Is he/she…? — Yes, he/she is. / No, he/she isn’t.
Are they…? — Yes, they are. / No, they aren’t.
例句:
Are Meimei and Peter in the same class?
Yes, they are. / No, they aren’t.
4. 特殊疑问句(what /where/who 开头)
结构:特殊疑问词 + am /is/are + 主语?
Where + be + sb. from?询问来自哪里
Where is Mr Smith from? He’s from the US.
What class + be + 主语?询问班级
What class are you in? I’m in Grade Seven.
Who’s…? 询问某人是谁
Who’s your teacher? It’s Ms Gao.
三、易错点总结
多个并列人名作主语(复数),必须用 are
Emma and Ella are twins.(❌ is)
and 连接 I 与其他人,主语为复数,用 are
Tom and I are in the band.(❌ am)
单个物品、动物、单数人名用 is;复数人 / 物品用 are
The cat is cute. / The cats are cute.
am 只能跟在 I 后面,任何人称都不能搭配 am
简答时,I am 不能缩写:Yes, I’m(错)→ Yes, I am(对)
四、物主代词配套(I-my /he-his/she-her)
对应表格
人称主格
形容词性物主代词(后接名词)
中文
I
my
我的
you
your
你的 / 你们的
he
his
他的
she
her
她的
it
its
它的
we
our
我们的
they
their
他们的
用法:后面必须加名词
his name 他的名字;her favourite animal 她最喜欢的动物
专项分层训练
专项一 基础匹配(3a 同类题型)
I → ____
You → ____
He/She/It → ____
We/They → ____
专项二 选词填空(圈出正确 am /is/are,3b 原题型)
1. Emma and Ella is/are twins. They are/is from the US.
2. I am/are 12 years old. Song Meimei am/is 12 years old too.
3. Lin Hai’s favourite colour is/are green.
4. Lisa’s pet cat is/are very cute. She likes it very much.
5. Tom and I am/are both in the school band.
专项三 短文填空(3c 全文填空,用 am/is/are)
Hello! I ____ Liu Yu. I ____ 13 years old. I ____ from Chengdu, China. My favourite animal ____ the panda. This is my new classmate. Her name is Sally Wood. She ____ also 13 years old. She ____ from Sydney, Australia. Now she lives in Chengdu with her parents. Her favourite food ____ Mapo tofu. Sally and I ____ good friends.
专项四 句型转换(肯定↔否定、一般疑问、特殊疑问)
1. I am 13 years old.(改为否定句)
2. She is from Australia.(改为一般疑问句并作肯定回答)
3. Tom and I are in Class 3.(改为否定句)
4. They are twins.(对 twins 提问,Who)
5. My favourite animal is the panda.(对 the panda 提问)
专项五 单项选择(基础 20 题)
( )1. I ____ twelve.
A. am B. is C. are
( )2. He ____ my new friend.
A. am B. is C. are
( )3. Tom and Sally ____ classmates.
A. am B. is C. are
( )4. —Are you from China? —Yes, I ____.
A. am B. is C. are
( )5. Emma and Ella ____ from Canada.
A. am B. is C. aren’t
( )6. Who ____ your English teacher?
A. am B. is C. are
( )7. Where ____ they from?
A. am B. is C. are
( )8. This cat ____ very lovely.
A. am B. is C. are
( )9. ____ your favourite colour blue?
A. Am B. Is C. Are
( )10. Sally and I ____ good friends.
A. am B. is C. are
专项六 句子改错(划出错误并改正)
1. I is 13 years old. ____________
2. Emma and Ella is twins. ____________
3. Tom and I am in Grade Seven. ____________
4. Where are he from? ____________
5. Her favourite food are mapo tofu. ____________
专项七 完成句子(结合 be 动词 + 物主代词)
1. 我叫刘宇,我来自成都。
I ____ Liu Yu. I ____ from Chengdu.
2. 她叫萨莉,她来自悉尼。
____ name is Sally. She ____ from Sydney.
3. 他最喜欢的动物是熊猫。
____ favourite animal ____ the panda.
4. 我和萨莉是好朋友。
Sally and I ____ good friends.
5. — 你在三班吗?— 是的,我在。
—____ you in Class Three? —Yes, I ____.
专项八 口语小写作(3d 任务:介绍新朋友,不少于 5 句)
提示模板:Hello! I’m … This is my new friend. His / Her name is … He’s / She’s from … He’s/She’s … years old. His / Her favourite … is …
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