课件16张PPT。 Unit3 The EarthA2 In pairs, discuss the questions below. 1 What are the blue parts?
______________
2 What are the green and brown parts?
______________
3 What are the white parts?
________________They are the clouds.They are the sea.They are the land.Watch a short video.
What can you see in the video? Natural worldLiving things beautifulWhat can you see in the video? Protect the earth
The Earth is a beautiful place.
There are forests and rivers, mountains and fields. Some places are very hot, and some are very cold.
There are many different plants. Some are large. Some are small. All plants need light and water. There are different animals on Earth too. Some live on the land. Some fly in the sky. Some live under the water.
There are also many people like you and me on Earth. The Earth provides us with air, water and food. It is our home.
Today, there is a lot of pollution. We burn things to make energy. This pollutes the air. We put our rubbish into the sea and under the ground. This pollutes the Earth and kills animals and plants.
We must stop doing these things. It is important for us to protect the Earth for our future.Comprehension exerciseTell whether the following statements are true or false and give supporting details.Some places are very hot, and some are very cold.Some live on the land.
Some fly in the sky.
Some live under the water.TTTFThe Earth provides us with air, water and food.We burn things to make energy. This pollutes the air. We put our rubbish into the sea and under the ground. This pollutes the Earth and kills animals and plants. 1.What things are there on Earth? (Parag 1)
2.What do all the plants need to survive(生存)?(Para 2)
3. What does the Earth provide people with?(Para3)
4. How do people pollute the Earth?(Para4)
There are forests and rivers, mountains and fields.All the plants need light and water.The earth provides us with water and air. People burn things and put rubbish into the sea
and under the ground. Protect the earth
The Earth is a beautiful place.
There are forests and rivers, mountains and fields. Some places are very hot, and some are very cold.
There are many different plants. Some are large. Some are small. All plants need light and water. There are different animals on Earth too. Some live on the land. Some fly in the sky. Some live under the water.
There are also many people like you and me on Earth. The Earth provides us with air, water and food. It is our home.
Today, there is a lot of pollution. We burn things to make energy. This pollutes the air. We put our rubbish into the sea and under the ground. This pollutes the Earth and kills animals and plants.
We must stop doing these things. It is important for us to protect the Earth for our future.Protect the earthLet’s draw the mind map and retell the text.natural worldliving things pollutionbeautifulsolution (We must….)Discussion :
What should we do to protect the Earth?
What shouldn’t we do to protect the Earth?Class presentationTell your own ways of protecting the Earth.Thing s we should do Things we shouldn’t do We should plant more trees.
1.
2.
3.
We shouldn’t cut down trees.
1.
2.
3.
Make a poster about how to protect the earth:
Our world is in danger. Let’s take action to save
the Earth, our only home. Homework :
1.Use the mind map to review the text.
2.Make a poster about how to protect the earth.课后练习
Unit 3：Reading
I. 词汇（每题1分，共10分）
1）选择与划线部分意思相近的选项
（ ） 1. Many factories poured out dirty water and polluted the river .
A. made … clean B. made …dry C. made… dirty
（ ）2. The company provides free breakfast for us .
A. gives us free breakfast B. offer free breakfast to us C. makes us free breakfast
（ ）3. We should protect the Earth from now on, or we'll be in danger.
A. keep…safe B. keep…clean C. keep…fresh
( )4. Some rivers are large.
A. long B. big C. old
（ ）5. Tom has a few friends.
A. a lot of B. not many C. not any
2）单选（每题1分,共5分）:
（ ）6. It is important for us to _____ the earth for our future.
A. pollute B. protect C. provide
（ ）7. There _____ a glass of water and three apples on the table.
A. is B. are C. be
（ ）8. Factories pour dirty water into rivers or lakes and this makes terrible_______.
A. pollution B. energy C.problem
（ ）9.Don’t throw rubbish on the ground. Please ______ the dustbin.
A. take it out B. put it into C. thrwo it away
（ ）10. Pollution ____ many animals and plants.
A.burns B. catches C. kills
II．语法填空（每题1分，共10分）
阅读下面的短文，按照句子机构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中的词的正确形式填空。
The sea
I live by the sea. I often go (1)________(swim) there with my father. Under the water, there (2)_______(be) a beautiful world full of living things, like sea horse and starfish.
Sometimes the sea is dangerous. There are often strong (3) ________(wind). Ships can sink(沉没) if the weather is very bad. There are also dangerous fish (4)________ sharks. They sometimes attack(袭击) people.
The sea can be dangerous to us, but we can harm the sea, too. There is (5)____ factory near my home and every day it(6) ___________(pollute) the sea. People also (7) _________(catch) a lot of fish,(8) _________ there are fewer and fewer fish in the sea each year. I am angry about this. We must stop (9) _________(do) these things. It’s important for us (10)__________(protect) the sea and the life in it.
