【新课标】Unit 3 The Earth 第3课时Grammar课件

(共43张PPT)
Unit 3 The Earth
Period 3 Grammar
牛津深圳·广州版 七年级上
1. Knowledge objectives: ①Correctly distinguish countable nouns from uncountable nouns. ②Master sentence patterns: There is/are…
2. Skill objectives: Learn the quantitative expressions of countable nouns and uncountable nouns.
3. Emotional objectives: Understand the current situation of environmental pollution on Earth and establish the awareness of protecting the earth.
4. Thinking quality objectives: Cultivate students’ analytical ability and divergent thinking ability. Make students use the grammar rules to draw inferences from one instance.
Learning objects
What would you like for breakfast？
Lead in
It is time for breakfast.
an egg
apples
Lead in
dumplings
a hamburger
meat
bread
milk
rice
Lead in
Discussion
They are nouns.
apple bread hamburger
egg dumpling rice
milk meat
Lead in
Lead in
什么是名词？
名词是表示人或事物名称的词。
In English, we can count some things, e.g. rivers and mountains. We cannot count other things, e.g. water and air.
Presentation
A Countable and uncountable nouns
可数名词
不可数名词
an apple a car
two bags fifty trees
water
money
homework
air
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
Presentation
Summary
Countable and uncountable nouns
单数 复数 备注
可数名词 a boy an egg boys eggs 单数形式前需加不定冠词a或an，且有复数形式。
不可数名词 air music rice /
只有单数形式，前面无需加不定冠词。
1. +s book→books
2. 以 s, x, ch, sh 结尾, +es class→classes
3. 辅+y, 改y为 i , +es city→cities, play→plays
4. o+es 或 o+s potato→potatoes, tomato→tomatoes,
photo→photos
5. f, fe , 改 v+es life→lives, leaf→leaves
6. 不规则 man→men
7. 单复数相同 fish, deer, sheep, Chinese, Japanese
Summary
单数可数名词如何变复数呢？
A1 Read the sentences below and decide whether the nouns in italics 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
Have a go
bottle/milk
box/egg
bowl/rice
glass/water
bag/apple
cup/coffee
1
2
3
4
5
6
S1: What’s this
S2: It’s a bottle.
S1: What’s inside it
S2: Some milk.
S1: What are these
S2: They’re boxes.
S1: What’s inside them
S2: Some eggs.
A2 In pairs, ask and answer questions about each photo. Follow the example.
Have a go
不可数名词不能以数目来计算，不可以分割成个体。
其前也不能用a/an或其他具体的数词来修饰。
Discussion
我们应该如何表达不可数名词的量呢？
a piece of
a loaf of
a slice of
We use them with uncountable nouns.
Summary
用much, a lot of, some, little, a little,enough等修饰不可数名词，表示量的多少。
(1) I have much homework to do.
(2) There is a lot of water in the bottle.
(3) There is some rubbish under the tree.
Summary
(1) I have a glass of milk for breakfast.
(2) There are two pieces of bread on the table.
(3) Would you like a cup of coffee
用数词+量词+of+不可数名词，表示具体的量。
Summary
用数词+量词+of+不可数名词，表示具体的量。
“数词+量词+of ” 的结构也可以和可数名词连用。 此时可数名词要用复数。
(1) I bought a bag of apples yesterday.
(2) There are two boxes of eggs on the table.
Summary
There are two pieces of bread on the table.
There are two boxes of eggs on the table.
1. 数词+量词+of+可数名词复数/不可数名词
2. 数词>1，量词要用复数
Summary
翻译下列短语
一杯水______________________________
九瓶牛奶 ____________________________
四双鞋 ______________________________
八张报纸 ____________________________
a glass of water
four pairs of shoes
eight pieces of newspapers
nine bottles of milk
Have a go
( )1. --Help yourself to ______.
--Thanks. It tastes good.
A. some chickens B. a chicken
C. some chicken D. any chicken
( )2. Twelve ______ were hurt, but no ______ were
lost in that accident.
A. person, life B. people, lives
C. peoples, lives D. persons, life
C
B
选择最佳答案填空。
Have a go
( )3. --Thanks for giving me ______ I wanted.
--You are welcome.
A. the information B. an information
C. the informations D. a information
( )4. Could you give me ______, please
A. two piece of paper B. two piece of papers
C. two pieces of paper D. two pieces of papers
C
A
Have a go
( )5. There is little ______ in the fridge. Will you go and buy some
A. bread B. noodle
C. dumpling D. vegetable
( )6. --Would you like some tea
--No, thanks. I have drunk two ______.
A. bottle of orange B. bottles of oranges
C. bottles of orange D. bottle of oranges
A
C
Have a go
Presentation
B Using there is/are…
I can see six kids.
What can you see in the picture
There are six kids in the park.
Where are they
They are in the park.
There are mountains and forests on Earth.
I can see mountains and forests.
What can you see in the picture
Where are they
They are on Earth.
Presentation
There is some orange in the glass.
I can some orange.
What can you see in the picture
Where is it
It is in the glass.
Presentation
There is some orange in the glass.
There are six kids in the park.
There are mountains and forests on Earth.
Presentation
there is/there are
（某地）有某物
We often use there is … or there are … to say that
something exists somewhere.
There is
a beautiful world under the water.
a lot of pollution on Earth.
Is there any water in
the glass
Yes, there is.
No, there isn't.
There are different plants and animals on Earth.
Are there five apples
in the bag
Yes, there are.
No, there aren't.
Presentation
Work out the rule:
Presentation
We use ____________ with a singular noun or an uncountable noun.
We use ____________ with a plural noun.
there is
there are
Things to remember
Note the difference below:
There is a glass of water and three apples on the table.
There are three apples and a glass
of water on the table.
Things to remember
there is = there's
there is not = there isn't
there are not = there aren't
Jane is asking Danny about what they can do to help protect the plete their conversation with there is (not), is there, there are or are there.
Jane: (1)_________ pollution in the sea. What can we do to help protect the sea
Danny: (2)__________ many things we can do. We can have a beach clean-up day. You see, (3)__________ always many bottles on the beaches. They pollute the sea.
There is
There are
There are
Have a go
Jane: That’s a good idea! What else can we do
Danny: We can ask people not to eat shark fin soup. (4)________ a seafood restaurant near your home
Jane: No, (5)__________. (6)__________ any other things we can do to help
Is there
there isn't
Are there
Have a go
There +is /are…+ 某物 /人+ 某地
某地有某物或某人“有,存在”
肯定式：There is/are...
否定式：There is/are not...
疑问式：Is/Are there...
肯定回答：Yes, there is/are
否定回答：No, there isn't/aren't.
Summary
There be 句型
肯定句：
There are some beautiful flowers.
否定句：
There aren’t any beautiful flowers.
一般疑问句：
Are there any beautiful flowers
肯定回答：Yes, there are.
否定回答：No, there aren’t.
Summary
① 如果句子的主语是单数可数名词或不可数名词时，be动词就用is。
There is a table in the room.
There is a little water in the bottle.
② 如果句子的主语是复数名词时，be动词就用are。
There are some pencils on the chair.
Summary
there is/are + sth./sb.
单复数保持一致
如果有两个或两个以上的主语时，be动词要和最靠近它的那个主语在数上保持一致。
Summary
There is a glass of orange and three tomatoes on the table.
There are three tomatoes and a glass of orange on the table.
这就是
“就近原则”！
1. There ______ four seasons in a year.
2. There ______ a basketball under the bed.
3. There ______ (not) any stamps on the envelope (信封).
4. There ______ three glasses of water on the table.
5. There ______ lots of apple juice in the bottle.
are
is
aren't
are
is
Exercise
一、根据句意，用 be 动词的适当形式填空。
6. ______ there any birds in the tree
7. There ______ too many students in the playground.
8. There ______ some tomatoes and beef in the basket.
9. --______ there a post office near your school
-- Yes, there ______.
Are
are
are
Is
is
Exercise
1. There are some bottles of milk in the fridge.
(改为一般疑问句并作肯定和否定回答)
______ ________ ______ bottles of milk in the fridge
Yes, _______ ______.
No, _______ _______.
2. There are ten birds flying in the air. (就划线部分提问)
______ ______ birds ______ ______ flying in the air
Are there any
There are
there aren’t
How many are there
Exercise
二、根据题目要求，完成下列句子。
3. There is some ice on the river.(就划线部分提问)
______ ______ ice ______ ______ on the river
4. There are some apples in the box.
(用a / an替换some改写句子)
There ______ ______ ______ in the box.
5. Is there a piece of paper on the desk
(用three替换a 改写句子)
______ there ______ ______ of ______ on the desk
Are three pieces paper
How much is there
is an apple
Exercise
Homework
Finish Grammar exercise paper.
Cherish the source of nature, totally make a living a life green.
珍惜自然之源，共营生命绿色。
Reflection
谢谢
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