内容正文:
Unit 5 The power of plants
Starting out & Understanding ideas
The power of plants
What facts about plants do you know?
Plants are important because they give us food, provide us with air, create habitats and home for animals and insects.
All plants need five things to survive: water, light, air, soil and space.
…
Do you think plants are amazing? Why or why not?
Yes, because they create food and oxygen from sunlight… / No, because they can’t move…
Starting out
What are the people doing?
She is buying vegetables.
He is working on wood.
They are weighing the herbs.
She is drawing trees and grass.
What can plants do for us?
They can provide us with food.
They can be materials for houses.
They can be used as Chinese medicine.
They can be inspiration for art.
They are as amazing and useful as our great friends.
The woman is buying vegetables in the market.
People grow a variety of plants to produce food.
The man is making a wooden shelf.
People use wood to make furniture.
The woman is weighing the herbal medicine (草药)in the drug store.
Some plants are good material for medicine.
The woman is painting in the field, or sketching from nature.(写生)
Beautiful nature is a great place for painting.
3
sunlight
sugar
water
Photosynthesis
光合作用
What’s happening in the plant?
Read and check
Within a plant
It's quarter past seven. Here's Worker No. 55 in his green uniform. He's going to start work in the plant.
He works in Workshop 1001 in the Leaf. There are 20 to 100 workers in each workshop. They collect sunlight and CO2, during the day. Now workers from the Root send up water. The water will rise up to the Leaf through the Stem. Then workers in the Leaf will mix water, CO2, and sunlight.
What are they going to produce? Most importantly (for them), there will be sugar! It's useful for the growth of the plant Another product will be oxygen, but the plant doesn't need much of it. It means a lot to animals and humans, though - they need it to breathe!
The workers work hard. Soon it's going to get dark. They will take a rest.
There are millions of plants on earth. They give more than food and oxygen. Without plants, the natural world would be very different!
1. Choose another suitable for this passage.
How to make sugar
How plants work
Why plants are great
Going to the green workshop
Why do you think so?
Read and choose
What does “plant” mean in the title?
In the title, "plant" has more than one meaning.
It can mean a living thing that grows in nature, like a tree or a flower, which is the usual meaning.
But here, it also playfully means a 'factory' where 'workers' do jobs like making food for the plant and oxygen for us.
pun 双关
It’s a clever way to make the passage more interesting.
Think and share
leaf
rise up
Water
sugar
Read and complete
breathe
Why are plants important?
Because they produce/ provide …
It means a lot to …
… need … to …
Without plants, … will/won’t …
In what other ways do plants help the world?
Retell
Climate Regulation (气候调节): Through photosynthesis, they help regulate the climate by absorbing carbon dioxide.
Habitat Provision(提供栖息地): They offer habitats for a wide range of animals and insects.
Medicinal Uses: Many plants are sources of medicines and herbal remedies.
Aesthetic Value(美学价值): They add beauty to the environment, in both natural and urban settings.
Economic Value(经济价值): They are used in various industries, such as agriculture, forestry, and landscaping.
Plants clean the air and help stop floods. They provide homes for animals, and reduce the effect of climate change.
7
Read the sentences from the reading passage and find what they have in common.
He’s going to start work in the plant.
They will take a rest.
Simple future tense 一般将来时
be going to
will
Indicate actions or events that will happen in the future
Now find more sentences with these structures in the reading passage.
Grammar
The water will rise up to the Leaf through the Stem.
The workers in the Leaf will mix water, CO2, and sunlight.
What are they going to produce?
Most importantly, there will be sugar!
Another product will be oxygen, but the plant doesn’t need much of it.
Soon it’s going to get dark.
Now find more sentences with these structures in the reading passage.
Simple future tense 一般将来时
Now summarize the grammar rules of using simple future tense.
表示将来某一时刻的动作或状态,或者将来某一段时间内经常的动作或状态。
Find more
The sunflower seeds ______ grow into tall plants.
We ______ learn different parts of plants tomorrow.
The leaves ______ change into different colours in autumn.
Complete the sentences with the simple future tense.
will
will
will
Read and complete
Welcome to the Great Bear Rainforest in Canada.
Let’s explore it together!
Mike
Welcome to the Great Bear Rainforest in Canada! We ________ through the forest today. It's sunny now, but please take a raincoat. I'm sure it ________ later. The trees in a rainforest can make their own rain.
How? Well, look up - way, way, up - and you ________ clouds at the top of these trees. Water comes into the air from the leaves, and ________ clouds. lt then rains on the forest. This _______ other plants very happy.
These trees can live for thousands of years. They _______ animals somewhere to live and food to eat...
Now we can see plants are so important, They influence the climate, the animals, and the people.
Complete the guide’s words using the correct form of the words in the boxes.
give
make
rain
see
become
work
will walk
will rain
will see
becomes
makes
give
Read and complete
Use the simple future tense to answer the following questions.
What will happen if we don't recycle?
How will planting more trees help the environment?
What can we do to protect the environment?
Planting more trees will reduce air pollution by absorbing carbon dioxide, provide habitats for wildlife, increase biodiversity (生物多样性) , help to prevent soil erosion (水土流失) and maintain water quality…
There will be more waste and pollution. / Without recycling, we will use natural resources faster, causing shortages.
We will educate our peers about the importance of environmental conservation. / By using reusable water bottles and bags, we will minimize plastic waste.
Think and share
Please make your plan for Planting Day!
more stable and reduce the effects of climate change
happier as they will have more habitats and food sources
healthier by improving air quality and providing more green space
plant trees and flowers to increase greenery.
Educate others about the benefits of plants for the environment.
Pairwork
Useful expressions:
Without plants, … will / won’t …
… need… to
… mean a lot to…
… can make…
… is useful for
… influence
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