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(共17张PPT)
Unit 8 I love nature！
第6课时
Understanding cultures:
Time on the earth
Activity 1: Look and talk
Look at the two pictures of the passage in Part 1 and talk about the questions below.
Do you know what they are in the first picture
What can you see in the second picture Do you know what happened in the picture
What do you know about the evolution of the earth
Activity 2: Read and write
Read the passage in Part 1 and talk about its main idea.
Our planet is about 4.6 billion years old.According to the latest research,humansappeared only 2.5 million years ago.If we shorten this into one day,humansappeared in the last two minutes.How did that happen
Midnight on the earth started witha burst of volcanoes.Around 3 to4 a.m.,life appeared at the bottomof the oceans.At 6 p.m.,water andsunlight began to provide energyfor life.All kinds of plants started to grow.At 9 p.m.,the earth gave birth to different creatures.At 11:30 p.m.,dinosaursappeared.They were one of the largest creatures in the history of the earth.Thelast 20 minutes of the day was the "busiest"time:after the age of dinosaurs,it wasthe age of allkinds of animals,including humans.
Activity 2: Read and write
Read the passage and write true (T) or false(F) in Part 1.
T
F
Read the passage and complete the table in Part 2.
Activity 3: Read and complete
around 3 to 4 a. m.
life appeared
at 6 p. m.
at 9 p. m.
at 11:30 p. m.
the last 20 minutes
plants started to grow
the earth gave birth to different creatures
dinosaurs appeared
the age of all kinds of animals
Activity 4: Group work
Talk about key events during the time period and prepare a brief description.
Work in pairs to discuss the questions in Part 3.
Activity 5: Let’s discuss
Activity 6: Let’s share
Do you know World Earth Day
What kind of activities can you do
Activity 6: Let’s share
Talk about World Earth Day in groups according to Part 4.
Activity 6: Let’s share
Share your ideas with your classmates and use the following useful expressions..
We can…
We should…
We should not…
课堂练习
Read the passage and choose the best answer.
Our planet is in trouble. There is too much pollution. The air is dirty, the water is polluted, and the soil is damaged. Many animals are losing their homes. We need to take action now. We can plant more trees, save water and energy, and stop polluting. We can also recycle paper, plastic, and glass. Every small action helps. Let's work together to protect our beautiful planet for the future.
Ⅰ.阅读理解
课堂练习
1. What is the problem with our planet
A. Too much nature
B. Too much pollution
C. Too many trees
B
Ⅰ.阅读理解
课堂练习
2. What are animals losing
A. Their food
B. Their homes
C. Their water
B
Ⅰ.阅读理解
课堂练习
3. What can we recycle
A. Paper, plastic, and glass
B. Food and water
C. Air and soil
A
Ⅰ.阅读理解
课堂练习
4. What does the passage say about small actions
A. They don't help
B. They are useless
C. Every small action helps
C
Ⅰ.阅读理解
Write a passage about how to save the earth. (Required)
Try to read some books or passages about the evolution of the earth. (Optional)
Homework

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