内容正文:
Unit 2 School in Canada
Lesson 10
How Many Are There?
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Lead in
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Presentation
one potato two potatoes three potatoes four potatoes
Can you find the differences?
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①Pencils and chairs
Can you find the differences?
These words have no s.
This is one pencil.
This is a chair.
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①Pencils and chairs
These words have an s.
These are many pencils.
These are many chairs.
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pencil
pencils
chair
chairs
Let's read
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apple
This is an apple.
apples
These are many apples.
Let's read
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可数名词变复数:
pencil — pencils chair — chairs apple — apples
规则1:
一般情况下,直接在名词后加-s。
Can you find the rules(规则)?
Let's learn
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This is ...
a/an/
one
pencil chair snake book
two/
some/
many pencils chairs snakes books
These are ...
Look and say
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②Boxes and buses
These words have no es.
This is a box.
This is a bus.
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②Boxes and buses
These are many boxes.
These are three buses.
These words have an es.
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box
boxes
bus
buses
Let's read
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This is a ______.
bus
box
peach
dish
These are ______.
buses
boxes
peaches
dishes
规则2:以s/x/ch/sh结尾的词+es, 构成名词复数。
Look and find
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This is a tomato.
These are many tomatoes.
This is a potato.
These are many potatoes.
Look and say
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③Tomatoes, potatoes and photos
This is a tomato.
This is a potato.
This is a photo.
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③Tomatoes, potatoes and photos
These are many tomatoes.
These are many potatoes.
These are many photos.
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