资源简介

(共22张PPT)
Unit 5
The power of plants
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Homework
Plants are everywhere. Do you know these plants
rose 玫瑰花
cotton 棉花
apple trees
bamboo 竹子
We can use roses to show love.
We can use cotton to make cloth.
We can have fruit to eat.
We can use bamboo to make paper.
Starting out
Pre-reading
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Homework
Starting out
What other facts about plants do you know
everywhere
grow 91cm
over 10,000 years ago
make medicines
Pre-readingWhile-readingPost-readingHomeworkStarting outWhat are the people doing The girl is buying some vegetables.The man is building a house.They are weighing称重the herbs草药The girl is painting trees and grass.What can plants do for us They can befood.They can bebuilding materials.建筑材料They can bemedicine.药They can bebeautiful sights.美景Pre-readingWhile-readingPost-readingHomeworkStarting outDo you think the plants are amazing Why or Why not Yes,I do.Because plantscan beour food, medicine, materials for houses. They areamazing and usefulas our great friends.Pre-reading
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Understanding ideas
What can you see in the picture
Do you know the names of its parts
A plant.
What do you see in the picture
What is the picture about
It’s like a factory.工厂
There are two workshops.
Some workers are working.
CO2
A box of …
Pre-reading
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Homework
The picute is about photosynthesis.
It happens within a plant.
光合作用
在植物内部
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Homework
Skimming略读
For general understanding总体理解
1. Choose another suitable title for this passage.
How to make sugar
How plants work
Why plants are great
Going to the green workshop
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Skimming
2. How many parts are there
3. What’s the main idea of each part
Three parts.
Emphasize (强调 ) the importance重要性 of the plant.
Introduce the process过程 of photosynthesis in plants.
Set the theme主题 for the reader.
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Scanning细读
What is Worker No. 55 going to do
Para.1
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Scanning
What do the workers collect
What do they do with water, CO2 and sunlight
What do they produce
Why is the oxygen important
Para.2-4
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Scanning
Let’s read paragraphy one by one in details.
What do the workers collect
Para.2-4
They collect sunlight and CO2 during the day.
Pre-reading
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Scanning
Let’s read paragraphy one by one in details.
2. What do they do with water, CO2 and sunlight
Para.2-4
They mix water, CO2 and sunlight.
Pre-reading
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Scanning
Let’s read paragraphy one by one in details.
3. What do they produce
Para.2-4
They produce sugar and oxygen.
sugar n. 糖
oxygen n. 氧气
Pre-reading
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Scanning
Let’s read paragraphy one by one in details.
4. Why is the oxygen is important
Para.2-4
It means a lot to animals and humans, because we need it to breathe.
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Exercise
Read Para2-4 again and fill the blanks.
sugar
sunlight
water
Let’s read paragraphy one by one in details.
Pre-reading
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What does writer think of plants？
Scanning
Para.5
It means plants don’t only produce food and oxygen.
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Thinking and share
In what other ways do plants help the world
provide提供 food for animals.
make the world beautiful
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Thinking and share
What does “plant” mean in the title
plant
in the title
in the passage
the place for the workers work in
the living things
What is the writing strategy技巧
PUN
“一语双关”
Pre-reading
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Let’s review
leaf
Complete the text with the words and expressions from the passage.
rise up
Water
sugar
breathe
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Talking and share
Suppose you are worker No.55.Talk about your work within the plant,including what you do and what you are going to do.
Key Words
Process
Importance
leaf, stem, root, sunlight, water, CO2, sugar, oxygen
collect..., enter...,
rise up to...through..., mix... produce...,
turn into...
means a lot to animals and humans
give more than food and oxygen...
Pre-reading
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Homework
Must-do:
Read the passage fluently; Talk about the process of the photosynthesis.
Optional:
Write down the process of the photosynthesis.
Homework

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