Unit 2 Lesson 8 Why Are Plants Important 课件(共29张PPT)

(共29张PPT)
Free Talk
1. What plants grow in our school
2. Why do we need trees
Lesson 8
Why Are Plants Important
Words
It’s pleasant to walk in the forest.
When the weather is sunny and hot,
you can sit in the shade under a tree.
It’s nice and cool.
pleasant / pl z nt/ adj. 使人愉快的
shade / e d/ n. 树阴；阴凉处
Words
Trees and other plants are important to people. People use them in many ways.
They help us fulfill our basic needs.
fulfill /f l f l/ v. 达到；执行
basic / be s k/ adj. 基本的；基础的
Words
Plants cover the soil.
And they also make everything look beautiful.
soil /s l/ n. 土；土壤
Words
pleasant / pl z nt/ adj. 使人愉快的
shade / e d/ n. 树阴；阴凉处
fulfill /f l f l/ v. 达到；执行
basic / be s k/ adj. 基本的；基础的
soil /s l/ n. 土；土壤
Task-based Reading
1. Trees and other plants help us _______________________.
2. The trees and plants __________________ the sun and and turn it into food.
3. What can we do when the weather is sunny and hot
___________________________________________
4. Why are plants important to the soil
____________________________________________
____________________________________________
5. It’s pleasant to walk in the forest. (翻译)
____________________________________________
fulfill our basic needs
take energy from
We can sit in the shade under a tree.
Because they cover the soil. That way, the wind
and water don’t carry the soil away.
在森林散步是令人愉快的事情。
Read and answer the question:Why are plants important
5. Plants also make everything look beautiful.
4. Plants cover the soil.
3. The forest is important to animals.
2. Trees and other plants are important to people.
1. Trees and other plants help clean the air.
Trees and other plants help clean the air.
It’s pleasant to walk in the forest.
When the weather is sunny and hot, you can sit in the shade under a tree.
Trees and other plants are important to people.
They help us fulfill our basic needs.
They take energy from the sun and turn it into food.
Medicine and clothing are also made from them.
The forest is important to animals.
Many animals live in the forest and eat the fruit from the trees.
Plants cover the soil. That way, the wind and water don’t carry the soil away.
everything
Plants also make everything look beautiful.
Functions of
trees (plants)
the air
animals
people
the soil
1.Trees and other plants help clean the air.
树和其他的植物有助于帮助净化空气。
help vt. 帮助，常用于两个句型：
help (sb.) (to) do sth.=help (sb. ) with sth. 帮助 (某人) 做某事
--Jim, please help me______ the tent.
--OK. I’m coming. It’s exciting to sleep in it tonight.
A. puts up B. put on
C. put up D. putting up
Key Points
can’t help doing sth. 情不自禁做某事
当我听到那个坏消息时,我情不自禁得哭了。
I ___________________ when I heard the bad mews.
这个小女孩情不自禁地笑了。
The little girl couldn’t help smiling.
couldn’t help crying
Key Points
2. It’s pleasant to walk in the forest.
在森林里散步是使人愉快的。
It’s pleasant to do sth. 做......很愉快。
荡秋千是让人愉快的事情。
It is pleasant to play on the swing.
It is tiring to babysit my sister.
照顾我的妹妹是件累人的事。
It is + adj. to do sth. 做某事是......
Key Points
3. Then we can sit in the shade under a tree.
in the shade
“在阴凉处”
in the sun / sunshine
in the light
在阳光下
在灯光下
然后我们可以在树荫下乘凉。
Key Points
4. They help us fulfill our basic needs.
他们帮助我们满足我们的基本需求。
fulfill v. “满足，达到，实现，执行”
fulfill one’s basic needs
满足某人的基本需求
We should try our best to fulfill our dreams.
实现
Key Points
5. The trees and plants take energy from the sun and turn it into food.
take energy from “从…中获取能量”
Everyone should take energy from books.
每个人都应该从书中获得能量。
植物需要从土壤中获得能量。
Plants need to take energy from soil.
树木和植物从阳光中吸取能量，将它变成食物。
Key Points
turn A into B “将A变成B”
The heat turns the ice into water.
热量把冰变成水。
Time flies! It has turned the little boy into a big man.
时光飞逝！它把这个小男孩变成了一个大男人。
Key Points
5. The trees and plants take energy from the sun and turn it into food.
6. Medicine and clothing are also made from trees and plants.
药物和衣物也是由树木和植物制成的。
be made
由(看不出原料)制成
由(看出原料)制成
被......制造
在(某地)制造
from
of
by
in
The paper is made from wood.
The table is made of wood.
The desk is made by my dad.
The clothes are made in China.
Key Points
up of
由......组成
The Green Great Wall is made up of
human-planted forest.
1. Our scarves ______________ silk.
2. The magazine can _____________ wood.
3. This kind of machines __________ China.
4. My bookshelf _____________ my grandfather.
5. Our class _____________ 55 students.
are made of
be made from
is made in
is made by
be made of; be made in; be made from;
be made by; be made up of
用所给词组的正确形式填空。
is made up of
7. That way, the wind and water don’t carry the soil away.
carry…away 把......搬走/冲走
Please carry away the box. It is in the way.
请搬走这个箱子。它挡道了。
My mother ___________ my bag away already, so I
don’t have to carry it.
has carried
Key Points
那样的话，风和水就不会使土壤流失。
8. In a word, we can’t live without plants.
总之，没有植物我们不能生活。
in a word 简言之，总之；通常放在句首，逗号隔开
in other words 换言之，换句话说
总之,我们应该多种树。
In a word, we should plant more trees.
Key Points
without 介词 “没有”
他没有吃早饭就去上学了。
He went to school without breakfast.
他没说再见就走了。
He left without saying good-bye.
没有水鱼就不能活。
Fish can’t live without water.
Key Points
8. In a word, we can’t live without plants.
help sb. do sth.
It’s pleasant to do sth.
in the shade
fulfill one’s basic needs
take energy from
turn ... into
be made from
in the forest
cover the soil
carry ... away
in a word
帮助某人做某事
做......很愉快
在树阴下
满足某人的基本需求
从......获取能量
把......变成
由......制成(看不出原材料)
在森林里
覆盖土壤
把......搬走
总之
Plants are important to nearly everything, but why are they
so important
First, trees and other plants help clean the air. It’s pleasant to
walk in the forest. When the weather is sunny and hot, you can sit in the shade under a tree. Second, trees and other plants are important
to people. They help us fulfill our basic needs. They take energy from the sun and turn it into food. Medicine and clothing are also made from them. Third, the forest is important to animals. Many animals live in the forest and eat the fruit from the trees. Fourth, plants cover the soil. That way, the wind and water don’t carry the soil away.
In a word, plants also make everything look beautiful.
Exercises
1.At the party, Kobe Bryant said, “_____the support of my fans, it would be hard for me to achieve such great success.”
With B. Under C. Through D. Without
2. -- Is your skirt made_____ cotton It feels very soft.
-- Yes. It is made _____ my mom.
of; by B. from; by C. of; in D. from; in
3. (连词成句) fulfill, they, us, help, our, basic needs
_____________________________________.
They help us fulfill our basic needs
Exercises
4.用方框中所给单词的适当形式填空。
shade; please; turn into; take energy from;
carry ... away; in a word
It’s _______ to go for walks on a sunny morning.
It’s hot. Let’s have a rest in the _______ under a tree.
_________, you should work hard.
In ancient times, people also_______________milk and eggs.
We would like two people to _____ these tables ______.
The land in the northwest has ___________ desert.
pleasant
shade
In a word
took energy from
carry
away
turned into
Can you imagine (想象) what will happen if there are no trees and plants in the world
There are many environment problems.
[d z :t f 'ke n]
desertification
沙漠化
smog/haze
雾霾
deforestation
[dif r 'ste n]
滥伐森林
We should try our best to protect the environment.
Let’s protect and plant trees or plants together.
Homework:
1. Finish the exercises on Lesson 8.
2. Review Lesson 9.
Thank you!