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(共19张PPT)
Lesson 6
Understanding cultures
Unit 8
I love nature!
学习目标
1
2
3
能够通过阅读活动，获取梳理与地球历史演变相关的信息；
能够通过小组合作，讨论和分享关于保护地球的具体行动；
能够运用所学词汇和语法结构，表达地球与人类关系话题的观点；
能够关注环保，激发保护地球的责任感和行动力。
4
Look at the pictures and talk with your partners.
1. Do you know how old the earth is
2. What do you know about the age of dinosaurs
3. When did humans appear
Look and say
A long, long time ago, there was a magical big bang in the universe. After that, over a long period, the earth gradually formed. The earth at the very beginning was not like it is now. Let’s read a passage about Time on the earth.
新课讲授
Read the passage and write true (T) or false (F).
Our planet is about 4.6 billion years old. According to the latest research, humans appeared only 2.5 million years ago. If we shorten this into one day, humans appeared in the last two minutes. How did that happen
Midnight on the earth started with a burst of volcanoes. Around
3 to 4 a.m., life appeared at the bottom of the oceans. At 6 p.m.,
water and sunlight began to provide energy for life. All kinds of
plants started to grow. At 9 p.m., the earth gave birth to different
creatures. At 11:30 p.m., dinosaurs appeared. They were one of the largest creatures in the history of the earth. The last 20 minutes of the day was the “busiest” time: after the age of dinosaurs, it was the age of all kinds of animals, including humans.
A The earth has a long history. （ ）
B Dinosaurs arrived last on the earth. （ ）
T
F
Read and write
Read the passage and find out the main idea of each paragraph.
Our planet is about 4.6 billion years old. According to the latest research, humans appeared only 2.5 million years ago. If we shorten this into one day, humans appeared in the last two minutes. How did that happen
Midnight on the earth started with a burst of volcanoes. Around 3 to 4 a.m., life appeared at the bottom of the oceans. At 6 p.m., water and sunlight began to provide energy for life. All kinds of plants started to grow. At 9 p.m., the earth gave birth to different creatures. At 11:30 p.m., dinosaurs appeared. They were one of the largest creatures in the history of the earth. The last 20 minutes of the day was the “busiest” time: after the age of dinosaurs, it was the age of all kinds of animals, including humans.
①
②
Compare the earth’s history and human appearance time and raise a question.
List major events and life appearance in a “one-day” timeline.
Read and find
Read para. 1 and choose the correct answers.
Our planet is about 4.6 billion years old. According to the latest research, humans appeared only 2.5 million years ago. If we shorten this into one day, humans appeared in the last two minutes. How did that happen
①
1. How does the writer begin the text
2. How old was our planet when humans appeared
A. About 2.1 billion years old. B. About 2.1 million years old.
C. About 4.5975 billion years old. D. About 4.5975 million years old.
A. By telling a story. B. By showing facts.
C. By giving a saying. D. By listing the numbers.
Read and choose
Read para. 2 and finish the tasks.
Midnight on the earth started with a burst of volcanoes. Around 3 to 4 a.m., life appeared at the bottom of the oceans. At 6 p.m., water and sunlight began to provide energy for life. All kinds of plants started to grow. At 9 p.m., the earth gave birth to different creatures. At 11:30 p.m., dinosaurs appeared. They were one of the largest creatures in the history of the earth. The last 20 minutes of the day was the “busiest” time: after the age of dinosaurs, it was the age of all kinds of animals, including humans.
②
2. Circle the time in this paragraph.
1. It was shortened into one day. So this part was organized in ________order.
time
3. When did life first appear on the earth
Around 3 to 4 a.m..
4. When did humans appear
In the last 20 minutes.
Read and answer
Read the passage again and complete the table.
Time What happened
midnight burst of volcanoes
around 3 to 4 a.m.
life appeared
at 6 p.m.
water and sunlight began to provide energy;
plants started to grow
at 9 p.m.
the earth gave birth to different creatures
at 11:30 p.m.
dinosaurs appeared
the last 20 minutes
the age of all kinds of animals, including humans
Read and complete
Work in pairs. Discuss the questions with your partner.
A What’s the relationship between the earth and humans
B What will happen to the world in the future
C What will you do to protect the earth
Work in pairs
A What’s the relationship between the earth and humans
The earth is humans’ home. It gives us air, water and land to live on.
What we do can change the earth, either in a good or bad way.
B What will happen to the world in the future
If we don’t care about the environment, there will be big problems.
But if we try to protect the earth, the world will be better.
C What will you do to protect the earth
I will recycle things to make less rubbish, and save water and electricity.
I’ll take buses or ride bikes more often instead of driving.
1. Do you know World Earth Day is on April 22 every year
2. What kind of activities can you do to help save the earth
Talk in groups and share your ideas with your classmates.
It is an event that encourages people to save the earth.
Useful expressions
We can....
We should...
We should not....
Talk and share
It’s time for us to take actions to help save the earth. Here are some things we can do in our daily life.
First, we should save resources. For example, turn off the tap when we don’t use water, and turn off lights when leaving a room. Second, we can use reusable things like water bottles and bags to reduce waste. Also, we should not litter. Throwing rubbish anywhere will pollute our environment.
By doing these simple things, we can help save our world.
Talk in groups and present your ideas in the front.
Present your ideas and evaluate your performance.
It’s everyone’s duty to help save the earth. We can do many things in our daily life.
We should take public transportation like buses or subways instead of asking parents to drive us everywhere. This can reduce air pollution. We can also sort our garbage at home, putting recyclable things like paper and plastic in one bin. We can plant some flowers at home, too.
Let’s encourage our family and friends to join us!
How many stars can you get 1. Use accurate words.
2. Share practical ways.
3. Interact actively.
4. Express fluently.
Total stars
The earth is our home. Let’s take good care of it with love, keeping it beautiful and full of different living things. Enjoy a beautiful planet!
come up with various practical ways to protect the earth.
describe the long history of the earth.
2
1
After learning this lesson,
I can
3
discuss the relationship between the earth and humans.
课堂总结
Homework
Make a poster about environmental protection, including some practical tips on what we can do to save the earth, and share it with your family and friends.

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