Unit 3 The earth Grammar 课件(共33张PPT)

(共33张PPT)
英语（牛津版）
七年级 上册
Unit 3
The Earth
Grammar
Revision
Protect the Earth
The Earth is a beautiful place.
There are forests and rivers, mountains and fields. Some places are very hot, and some are very cold. There are many different plants. Some are large. Some are small. All plants need light and water. There are different animals on Earth too. Some live on the land. Some fly in the sky. Some live under the water. There are also many people like you and me on Earth. The Earth provides us with air, water and food. It is our home.
Today, there is a lot of pollution. We burn things to make energy. This pollutes the air. We put our rubbish into the sea and under the ground. This pollutes the Earth and kills animals and plants.
We must stop doing these things. It is important for us to protect the
Earth for our future.
What things are there on Earth
plants
fields
mountains
river
forests
pollution
water
land
air
food
rubbish
sea
animals
light
places
1
Lead-in
home
people
plants
places
fields
mountains
rivers
forests
pollution
water
land
air
food
rubbish
sea
animals
plants
places
field
mountains
rivers
forests
pollution
water
land
air
food
rubbish
sea
animals
Countable nouns
Uncountable nouns
light
In English, we can count some things, e.g. rivers and mountains.
We cannot count other things, e.g. water and air.
Countable nouns Uncountable nouns
one animal, two animals some rubbish
I have a world map at home. There is an article about the Earth. All plants need light and water.
This plant is beautiful. These animals are dangerous. Air has no smell.
Water is important.
Countable and uncountable nouns
2
Work out the rule
(Countable/Uncountable) nouns can have plurals.
We can use a or an before (countable/uncountable) nouns.
Uncountable nouns only take (singular/plural) verbs.
Countable nouns Uncountable nouns
one animal, two animals some rubbish
I have a world map at home. There is an article about the Earth. All plants need light and water.
This plant is beautiful. These animals are dangerous. Air has no smell.
Water is important.
A1 Read the sentences below and decide whether the nouns in red are countable or uncountable. Write the words in the correct columns.
1 There is grass in a forest.
2 Do not throw rubbish into the river.
3 The air is fresh in the mountains.
4 The flowers are beautiful. Let me
take a photo.
5 We should drink water every day.
Here is a glass for you.
countable uncountable
forest
river
mountains
flowers
photo
glass
grass
rubbish
air
water
Revision
Protect the Earth
The Earth is a beautiful place.
There are forests and rivers, mountains and fields. Some places are very hot, and some are very cold.
There are many different plants. Some are large. Some are small. All plants need light and water. There are different animals on Earth too. Some live on the land. Some fly in the sky. Some live under the water.
There are also many people like you and me on Earth. The Earth provides us with air, water and food. It is our home.
Today, there is a lot of pollution. We burn things to make energy. This pollutes the air. We put our rubbish into the sea and under the ground. This pollutes the Earth and kills animals and plants.
We must stop doing these things. It is important for us to protect the
Earth for our future.
There are pencils in the classroom.
Yes, there are.
There's a cupboard on the pencils.
Yes, there is.
There 's a ruler on the cupboard.
There's a bookcase on the ruler.
There's a teacher on the bookcase.
.........
There be 句型
Structure
There are many eggs in the basket.
There is a watermelon in the basket.
There is/are+…+某物/某人+某地
某地有某物或某人 “存在，有”
There be句型中be动词有单复数的变化。
基本结构
books
money
rooms
teacher
water
picture
workers
milk
pencils
an apple
There _____
is
is
are
is
is
is
are
are
are
is
There be看名词；
单数is；复数are，
不可数名词要用is
Practice
1. There _____some bread on the table.
is
are
is
不可数名词
练习 Practice
2.There______a pen in the box.
is
are
is
名词单数
练习 Practice
3.There_____a lot of trees in the forest.
is
are
are
名词复数
就近原则
1.There_______a book and some pencils on the table.
2.There_______some pencils and a book on the table.
a book
is
some pencils
are
There be是近视眼，
遵循就近原则！
be动词单复数形式要跟there be之后的第一个主语保持一致
句型转换:否定句
1
There are some students in the house.
There students in the house.
2
There is a cat in the box.
There a cat in the box.
are not any
is not
规则：be动词后加 not, some变any.
句型转换：一般疑问句
3
There is a house on the mountain.
a house on the mountain
4
There is some water in the lake.
there water in the lake
Is there
Is any
规则：Be 动词提前，some变any,其他部分不变。
Exercises
连词成句
1
2
3
4
填空题
用所给词的适当形式填空
根据句子的关键词，运用所学内容进行作答。
刮开涂层
1. There is some ________(bread) on it.
2. There are 5 basketball__________(play) in every team.
3. There aren't________(some) people in the room.
4. There______(be) not a bird in the sky.
5.There______ (be) a girl and two boys in the library.
bread
players
any
is
2.适当形式填空 （观前顾后法）
is
按要求改写句子
根据句子要求，进行改写。注意正确使用
时态。
刮开涂层
改写句子 （见缝插针法）
1. There is an apple in the box.
(改为否定句和一般疑问句)
否定句
There is an apple in the box.
not
There isn’t an apple in the box.
There is an apple in the box.
Is there an apple in the box
一般疑问句
连词成句
将所给单词连成句子，要求符合语法，语
句通顺，大小写正确，单词不重复使用。
刮开涂层
isn't
1.连词成句 （穿针引线法）
any
there
in
the
bottle
milk
(.)
There
isn't
any
milk
in
the
bottle
.
is
2.连词成句 （穿针引线法）
a
book
the
desk
there
under
( )
Is
there
a
book
under
the
desk

填空题
刮开涂层
1.There ________ thirty-six students and a teacher in the classroom.
is
You got it!
are
NEXT
Practice
2.There ________ a boy and three girls on the stage.
are
You got it!
is
NEXT
单选 Practice
Countable nouns Uncountable nouns
one animal, two animals some rubbish
This plant is beautiful. These animals are dangerous. Air has no smell.
Water is important.
Countable and uncountable nouns
2
Summary
Summary
将房间内的可数名词和不可数名词分类罗列出来，并用There be 句型描述自己房间的物品摆放。
Homework
Where there is a will, there is a way.
有志者，事竟成。