Unit 2 Lesson 8 Why Are Plants Important 课件 (共22张PPT)2023-2024学年冀教版英语八年级下册

(共22张PPT)
Unit 2
Lesson 8 Why Are Plants Important
新课导入
1. What plants grow near your home
2. Why do we need trees and plants
Talk about these two questions in groups
Free Talk
1.能熟悉并能正确运用本课时的重点单词和短语
2.能掌握并运用 It is pleasant to do sth和 can't ...without...
这两种句型
3.了解植物的重要性，爱护植物
预习检测
1.—The T-shirt feels soft.
—Yes. It 　　　　silk.
A.is made of　　 B.is made in　
C.is made by　　 D.is made for
2.　　　　 the sun’s heat or light, there would be no life
on the earth.
A.Under B.For
C.With D.Without
A
D
3. It is pleasant_______in the river in summer.
A.to swim B.swim
C.swimming D.to swimming
4. ______he is not interested in math.
A.May be B.Maybe C.May D.Can
5.Trees and ______plants are important to people.
A.another B.the others C.other D.others
A
B
C
知识梳理
It’s pleasant to do… 做….很愉快
It’s pleasant to live in beautiful surroundings.
辨析 pleasant与pleased
pleasant adj. 令人愉快的 既可作表语也可作定语， 多用于修饰事物，表示 “某事(或某物)令人愉快”。 This is a pleasant journey.
pleased adj. 愉快的； 满意的 一般不作定语，多形容人， 表示“某人对某事(或某人) 感到高兴或满意”。 If you jump the queue, others will not be pleased.
2. fulfill， v. 达到，实现，执行
We must fulfill the plan, whatever happens.
What important dream have you yet to realize and fulfill
fulfill one’s needs 满足某人的需要
The earth help human beings fulfill their basic needs.
3. take energy from… 从……获取能量
All plants and animals take energy from the sun.
People must take energy from food.
4. carry away... 把……搬（移）走
The flood carried away the wooden bridge.
拓展：
carry off 轻而易举地完成
carry out 执行
carry forward 发扬，推进
5. in a word 总之，一句话
In a word, he tries everything.
In a word, they can do everything they like with money.
In a word, I love my school. I find my school life more
and more meaningful and colorful.
THINK ABOUT IT
What plants grow near your home
Why do we need plants
Danny, Jenny and Brian are walking in a forest.
Jenny: I love this forest. There are so many trees and plants. The air is always
clean and fresh.
Brian: Yes. Trees and other plants help clean the air.
Jenny: That's true. 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.
Danny: I'm hungry! Maybe I can eat a plant.
Brian: Sure, Danny! Look, there is an apple tree over there!
Discuss the reasons why we need palnts.
Danny: Is there a donut tree
Brian: Donuts don’t grow on trees!
Jenny: Trees and other plants are important to people. They help us fulfill
our basic needs.
Brian: That’s for sure. People use trees and other plants in many ways.
The trees and plants take energy from the sun and turn it into food.
Medicine and clothing are also made from trees and plants.
Jenny: The forest is important to animals, too.Many animals live in the forest
and eat the fruit from the trees. They eat other plants, too.
Brian: And plants cover the soil. That way, the wind and water don’t carry
the soil away. Plants also make everything look beautiful.
Danny: In a word, we can’t live without plants!
1. Read the lesson and tick the items mentioned.
□People can eat plants or use them as medicine.
□Plants help make the air clean and fresh.
□Many animals live in the forest.
□Books，paper，pencils and erasers all come from plants.
□Animals eat the fruit from the trees.
□The plants cover the soil and can stop the dust.
□When the weather is sunny and hot，people can sit in the
shade under a tree.
□The plants make everything look beautiful.
□People use wood from trees to build houses and furniture.
√　
√　
√　
√　
√　
√　
√　
2. Complete the passage with the correct forms of the words in the box.
There are many trees and plants. It’s ________to walk in
the forest. When the weather is sunny and hot，you can sit in
the _______under a tree. Trees and other plants are one of our
________needs for life. Many things are made from trees and
plants. Most animals live in the ________and eat the fruit from
the trees. And plants ________the soil. That way, the wind
and water don’t carry the soil away.
basic　shade　forest cover　pleasant
pleasant
shade
basic
forest(s)
cover
Functions
of trees
(plants)
Environment:
2.Plants help make the air
clean and fresh.
6.The plants cover the soil
and can stop the dust.
Shelter:
3.Many animals live
in the forest.
7.People use wood from
trees to build
houses and furniture.
Food or medicine:
1.People can eat plants or
use them as medicine.
5.Animals eat the fruit
from the trees.
Clothing and school things:
4.Books, paper, pencils
and erasers all
come from plants.
8.People can make
clothing from plants.
活动小结
Why do we need plants
1). Clean .
2). Sit in the under a tree.
3). The trees and plants take from the sun and turn
it into .
4). Medicine and clothing are from trees and plants.
5). Many animals live in the and eat the from
the trees.
6). Cover the .
the air
shade
energy
food
made
forest
fruit
soil
1. Benz(奔驰) is made in Germany.
2. The desk is made of wood.
3. Papers are made from wood.
4. Meals in my family are made by my father.
短语be made ...的用法
Look at the sentences carefully:
be made in 在...生产
be made of 由...制成
be made from 由...制成
be made by 被...制成
We can know their meaning：
be made in 后面是产地
be made of 原材料可见
be made from 原材料不可见
be made by 后面是制造者
We can sum up：
活动小结
be made 后面可以接三个不同的介词，意思各不相同：
be made in
be made from
be made of
be made by
产地
不可见原材料
可见原材料
制造者
当堂检测
一、根据提示及句意完成句子
1．Food is our________(基本的) need.
2．They have a________(令人愉快的) trip.
3．People like to have a rest in the________(阴凉处)of the tree.
4．Trees and other plants help us________(满足) some needs.
5．The air is always clean and fresh in the________(森林)．
basic
pleasant
shade
fulfill
forest(s)
二、用方框中所给短语的适当形式填空
6． __________, man can't live without water.
7．The storm ________ the house ________．
8．What he said _______________ us.
9．The trees ________________the sun and turn it into food.
10．_______________ three times a day and you will be well.
In a word
be important to 　 take the medicine
carry...away　 in a word　 take energy from
carried away
is important to
take energy from
Take the medicine
Unit 2
Lesson 8
重点词汇：
实现/完成, fulfill
愉快的, pleasant
阴凉, shade
土壤, soil
园丁, gardener
频道, channel
重点短语：
帮助某人......
help sb with sth
help sb (to) do sth
be made +介词:
be made of
be made in
be made by
be made from
在树上：
on the tree
in the tree