Unit 4 Our World Topic 1 What's the strongest animal on the farm? Section C课件+内嵌音频

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Unit 4 Our World
Section C
Topic 1 What’s the strongest animal on the farm
Learning objects
What will do today
Learn some new words and expressions.
Know something about the rainforests.
Talk about how to protect rainforests, and write a proposal.
He lives in the rainforest.
AVATAR
Where does Avatar like
Free talk
What do you know about rainforests
Guess
Guessing the answer to following questions.
What are rainforests
How many animals are living in rainforests
Where do animals live in rainforests
What can we get from rainforests
Why are rainforests important to us
Look and guess
Look at the pictures and check which questions the passage can answer.
Skimming
Read paragraph 1 and choose the best answer.
What’s the main idea(主旨大意) of paragraph 1
A. Thousands of plants and animals live in rainforests.
B. The features ( 特征 ) of rainforests.
C. Rainforests are thick forests in the hot parts of the world.
Skimming
Read paragraph 2 and choose the best answer.
2. What’s the main idea(主旨大意) of paragraph 2
A. Rainforests can give us many useful things.
B. We should protect rainforests.
C. Rainforests are very important to us.
Read and mark
Read Paragraph 1and mark T or F
Rainforests are in the cold parts of the world ( )
The ground in rainforests is always wet . ( )
Rainforests cover 8% of the earth’s surface. ( )
Rainforests give a home to many beautiful plants and animals ( )
F
F
T
T
hot
6%
Read and fill
Read Paragraph 2 and fill in the blanks.
Why are rainforests important to us
1. The plants make the air _____ and _____
4. Rainforests help to keep the beauty of ________.
2. They help to _____ the water and keep the water____
3. They help to control the ________
5. They give us ______ , _____, fruit, _________ and so on
.
fresher
cleaner
hold
cycling
climate
nature
wood
food
medicine
Read and find
Read the passage and find out the key phrases.
成千上万：
对某人来说很重要:
地球之肺：
使空气更清新干净：
调节气候：
促进水循环：
保持自然之美：
在……中起重要作用 ：
灭绝：
越来越小：
thousands of
keep the water cycling
play an important part in
die out
smaller and smaller
be important to sb.
the lungs of the earth
make the air fresher and cleaner
control the climate
keep the beauty of nature
Key points
___________
1.Rainforests cover 6% of the earth’s surface.
cover: v. 覆盖
雪覆盖了大地。
Snow covered the ground.
cover …with… 用…覆盖…
他们用纸遮住了脸。
They covered their faces with paper.
覆盖…. 6%(six percent)
Key points
2.They play an important part in controlling the climate.
play an important part ( in sth.)
在……中起重要作用；
E.g.: 1.小明 积极参加班级活动。
Xiao Ming_________________________ class activities.
plays an important part in
2.他在跑男中发挥重要作用。
He ________________________ Running Man.
plays an important part in
Key points
3. But now, rainforests are becoming smaller and smaller, so we should protect them.
China is becoming __________________ .
stronger and stronger
比较级+and+比较级：越来越…..
1.中国 正 变 得 越 来 越 强。
2.天气 变 得 越 来 越 冷。
The weather is becoming ____________ .
colder and colder
Key points
_____________
4.They provide places to live for thousands of plants and animals found nowhere else on Earth.
nowhere else:没有别的地方
热带雨林为成千上万的动物提供了生存场所，这些动植物是地球上其他地方所没有的。
5. Many of them live in the trees over 30 meters from the ground.
more than
30 meters
它们(动物)中有许多居住在离地面三十多米高的树上。
Read and fill
Fill in the blanks.
Rainforests are thick forests in the _______(热带的) parts of the world. The ground is ______(潮湿的). Rainforests ______ (覆盖)6% of the earth’s surface. _______________ （成千上万的）plants and animals live in them.
Rainforests are important to us. They are the lungs of the earth. They make the air__________________（更清新干净） fresher and cleaner . They also help to hold the water and keep the water cycling . They _________________________ (在…中起重要作用）controlling the climate. They also help to keep the beauty of nature .Without them, many plants and animals would ______ ______ （灭绝）. But now, rainforests are becoming _____________________ （越来越小）. So we should ________ （保护）them.
hot
wet
cover
Thousands of
play an important part in
die out
smaller and smaller
protect
fresher and cleaner
Read and answer
Read again and answer the questions.
Why are rainforests the lungs of the earth
2. Why should we protect rainforests well
Because the plants in the forests help to make the air fresher and cleaner.
Because they help to hold the water and keep the water cycling. They play an important part in controlling the climate.
Look and think
What’s happening to Rainforests now
Discuss
Discuss the pictures in groups about how to protect rainforests.
show and tell people about …
ask people not to …
do anything we can，such as …
Example
Rainforests are very important to us. It is necessary for us to protect them very well.
First, we should make people know about the importance of protecting them. Then ask people not to cut down the trees without plans. For us, we should do something as possible as we can. When we have meals, we mustn’t use chopsticks for only once. In the life, use less paper and be sure not to waste it.
I believe if we try to protect rainforests well, we’ll live a happier life in the future.
Exercises
Fill in the blanks.
1. 实际上，他的答案是正确的。
________ ________, his answer is right.
2. 你必须把时间和地点弄清楚。
You must ________ ________ of the time and place.
3. 请用一些土填上这个洞。
Please ________ the hole ________ some earth.
4. 现在雨林正变得越来越小。
Now rainforests are ____________ ________ ________ ________.
5. 雨林能帮助调节气候。
Rainforests can ________ ________ ___________ the climate.
In fact
make sure
fill with
becoming smaller and smaller
help to control
Summary
We learn:
some words and expressions: rainforest, thick,
forest, cover, wet, earth, surface, nowhere, ground,
thousands of, climate, control, die out …
the features and the importance of rainforests.
We can:
Talk about how to protect rainforests.
Homework
Read 1a aloud and fluently and finish the workbook. ( Levels A, B & C)
Write a short passage about how to protect rainforests. ( Levels A & B )
Search for more ways to protect rainforests online. (Level A)
Optional:
Enjoy a song: Heal the World
https://www.21cnjy.com/help/help_extract.php
Heal the World