Unit 2 Looking different考点精析课件（仁爱科普版七年级上册）

(共19张PPT)
Unit 2 Looking Different
--- 语法知识精讲
动原和三单
---动词原形和动词第三人称单数形式
I often play football.
We go home on foot.
You have a pet dog.
He loves pigs.
She usually plays games at home.
It doesn’t eat potatoes.
They always watch TV at home.
动词 v（ verb. )---表动作
I often play football.
We go home on foot.
You have a pet dog.
They always watch TV at home.
Candy and Judy love you.
V原 （动词原型）
1.主语是第一，二人称，复数人称
I, You,We, They,
两个以上的人物做主语。
用法
He loves pigs.
She usually plays games at home.
It has two big eyes.
Tom likes bananas.
三单
---（动词的第三人单数形式）
主语是第三人称 He, She,It,
单个人物做主语。
实义动词变第三人称单数的规则
① 一般情况直接加“s”，
如：come---comes，meet---meets
② 动词以o，s，sh，ch, x结尾，加“es”，
如：do--does; go--goes; teach--teaches
③ 以辅音字母+y结尾，变y为i，再加es,
如：study--studies, fly--flies, try--tries
④ 特殊情况：have--has
适用于一般现在时
用动词的适当形式填空
1. I often _______(go) to school on foot.
2. He usually ________ ( work) at home.
3. Amy _______(want) to play games.
4. We _______( have ) some apples.
5. Mike always_________( watch)TV on Sunday.
go
works
wants
have
watches
句型转换--需添加助动词完成转换
I like singing.
I don’t like singing .
Do you like singing
Yes,I do.
No,I don’t.
He has a small nose.
He doesn’t have a small nose.
Does he have a small nose
Yes,he does.
No,he doesn’t.
否定句
一般疑问句
助动词
帮助动词的词，本身没有实际意义
do
don’t
does
doesn’t
did
didn’t
过去式
帮助动词
1. 动词变否定
They have long noses.---They don’t have long noses.
2.动词变疑问句
Mike goes to the park by bus.
Does Mike go to the park by bus
How does Mike go to the park
助动词后面的动词永远是原形
句型转换
1. She loves eating cakes.
否定句:_________________________________________
一般疑问句：____________________________________
2.We have lunch at school.
一般疑问句：______________________________________
肯定回答：________________________________________
She doesn’t love eat cakes.
Does she love eating cakes
Do you have lunch at school
Yes, we do.
表示所属关系
物主代词
名词所有格
形容词性物主代词
名词性物主代词
有生命
无生命
第一人称 第二人称 第三人称 单数 复数 单数 复数 单数 复数
形容词性物主代词
名词性物主代词
my
our
your
your
his
her
its
their
mine
ours
yours
yours
his
hers
its
theirs
Whose candies are they
They are my candies.
They are mine.
mine = my candies.
Whose hat is it
It is her hat.
It is hers.
her = her hat.
名词性物主代词=形容词性物主代词+名词
This is her banana.
The banana is hers.
These are their pears.
Thesepears are theirs.
形代后有名词
名代后无名词
Exercises
用所给代词的正确形式填空。
1. They are ______ (she ) brothers.
2. That is _______(I ) sister.
3. This book is _______ (he)
4. Tom, this dog is ______ ( my)
his
my
her
mine
名词所有格
① 用于人或其他表示有生命的名词后
② of 表示所属关系，用于没有生命的物体
如：a map of China；
a photo of my family
① 用于人或其他表示有生命的名词后：
单数或不以s结尾的复数+’s
如：Jane’s book；Women’s Day
以s结尾的复数+’ 如：Teachers’Day
人名’ s and 人名’ s 分别拥有的物品
Lucy’s and Lily’s bags
人名 and 人名’s 共同拥有的物品
Lucy and Lily’s room 共有
Thank you !