Unit 2 Lesson 8 Why Are Plants Important？
同步练习
一、单项选择。
1. —What can you see ________ the tree?
—Aha! Koalas! Seven of them!
A. on B. in
C. above D. over
2. Thanks to our teachers. ________ their help, we couldn't make such great progress.
A. Without B. With
C. About D. For
3. The Monkey King can turn himself ________ seventy-two different animals and objects.
A. down B. on
C. off D. into
4. She told us that by the end of the year, she was very ________ about the bullying(欺凌) and became ill.
A. pleased B. worried
C. satisfied D. amazed
5. —Our head teacher is responsible for his work. He spends most of his time with us.
—________ He always communicates with our parents in his free time.
A. I hope so! B. What?
C. That's for sure. D. Why?
6. Summer camping is a great experience for students. It is good to help them ________.
A. wake up B. get up
C. hurry up D. grow up
7. It's bad for your eyes ________ computer games too much.
A. play B. playing
C. to play D. plays
8. Kaili is one of the most beautiful ________ in Guizhou.
A. place B. cities
C. town D. county
9. The scarf which is ________ silk ________ soft and comfortable.
A. made from；feel B. made of；feels
C. made in；smell D. made up of；smells
10. Are there many trees ________？
A. where do you meet B. where you meet
C. you meet where D. you meet there
二. 用所给单词的适当形式填空。
1. It's pleasant ____________(work) with you.
2. She left without ____________(say) a word.
3. Plants can help ____________(clean) the air.
4. People and other animals need food ________(live).
5. He lost his key. It made him ________(stay) in the cold to wait for his wife's return.
三. 任务型阅读。
Plants are very important. Plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals can get their food by eating plants and other animals. Man gets his food by eating plants and animals, too. Soanimals and man need plants in order to live. This is why there are so many plants around us.
There are two kinds of plants：flowering plants and non-flowering plants. Almost all the trees around us are flowering plants. You can know some trees from their flo-wers and fruit. Non-flowering plants do not growflowers. You can not see many non-flowering plants around you.
If you look carefully at the plants around you, you will find that there are many kinds of plants. Some plants are large and some are small. Most of them are green. Thanks to the plants around us, we can live on earth.
1题完成句子; 2～3题简略回答问题; 4题找出并写下全文的主题句; 5题将文中画线句子译成汉语。
1. Animals and man need plants________________________________.
2. Can animals and man make food from air, water and sunlight?
________________________________________________________
3. How many kinds of plants are there in the world according to the passage?
________________________________________________________
4. ________________________________________________________
5. ________________________________________________________
四. 根据句意及所给中文完成句子，每空一词。
Trade _____(有助于) the development of industry.
It’s _________(愉快的) to climb mountain.
________(没有) food, they would have nothing to eat and they would die.
We can sit in the _____ (树荫)under the tree.
Trees and plants help us _____(满足) our basic needs.
6. We can turn the tree ____ paper.
7. Other structures will be _____ ____ (由…制成)high tech materials called memory metals.
8. ____ a word, we can’t live without the sun.
同步练习答案
一、1. B 2. A 3. D 4. B 5. C
6. D 7. C 8. B 9. B 10. B
二. 1.to work 2.saying 3.(to) clean 4.to live 5.stay
四. 1. helps 2. pleasant 3. Without 4. shade 5. fulfill
6. into 7. made from 8. In
课件31张PPT。冀教版 八年级下 Unit 2
Lesson 8
Why are plants important?
Warming-up:Let’s enjoy a video:1. What plants grow near your home?
2. Why do we need trees and plants?Free Talk:Talk about these two questions in groups:Why do we need trees and plants? Presentation:Trees and plants help clean the air.They can make the environment more beautiful.Why do we need trees? Presentation: When the weather is sunny and hot, people can sit in the shade under a tree. It’s nice and cool. shade /?eid/
n.阴凉处;树荫Why do we need trees and plants? Presentation:The trees and plants take energy from the sun and turn it into food. Why do we need trees and plants? Presentation:Trees help us fulfill our basic needs. Medicine and clothing are also made from trees and plants. /ful'fil/ v.
达到;执行/'beisik/ adj.
基本的;基础的be made from 由…制成Why do we need trees and plants? Presentation:The trees and plants is important to animals, too.
Many animals live in the forest and eat the fruit and
leaves from the trees.Why do we need trees and plants? Presentation:Trees and plants cover the soil. That way, the wind and
water don’t carry the soil away. /?il/ n. 土; 土壤 Why do we need trees and plants ?
(1) Clean the air.
(2) Sit under a tree in the shade.
(3) The trees and plants take energy from the sun and turn it into food.
(4) Medicine and clothing are made from trees and plants.
(5) Many animals live in the forest and eat the fruit from the trees.
(6) Cover the soil.
(7) Plants make everything look beautiful.Pair work:Work in pairs and ask and answer like this：A： We can't live without trees and plants.
B: Why do we need trees and plants ?
B： Trees and other plants are important to people. …
And they are important to animals, too. …Listen to the lesson and answer the question:Listening:What are Danny, Jenny and Brian talking about?
They are talking about trees and the
reason why we need them.Let’s Do It!Read the lesson and tick the items mentioned.1□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. √√√√√√√ Danny, Jenny and Brain are walking in a forest.
J: I love this forest. There are so many trees and plants. The air is always clean ahd fresh.
B: Yes. Trees and other plants help clean the air.
J: That's true. It's pleasant to walk in the forest. When the weather is sunny and hot, people can sit in the shade under a tree. It’s nice and cool. It's nice and cool.
D: I'm hungry! Maybe I can eat a plant!
B: Sure,Danny! Look,There is an apple tree over there.so many + n.复数help sb. do sth. 帮助某人做某事It's + adj. + to do sth. 做某事是…Reading:Read the lesson again and take notes.D: Is there a donuts tree?
B: Donuts don't grow on trees!
J: Trees and other plants are important to people. They help us fulfil our basic needs.
B: 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.树上长的东西用on, 在树上的用in .如鸟在树上，bird in the treesth. is important to sb. 对某人来说某物是重要的basic needs 基本的需求take energy from 从…获取能量turn sth. into 把……转换成……be made from 由……制成Reading:Read the lesson again and take notes. 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.
B: And plants cover the soil. That way, the wind and water don’t carry the
soil away. Plants also make everything look beautiful.
D: In a word, we can't live without plants. in a word 总而言之make sth. do 使某物…cover v. 覆盖carry sth. away 把某物带走language points:Grammar: It’s pleasant to do… 做….很愉快
It’s pleasant to live in beautiful surroundings.
生活在优美的环境里是令人愉快的。辨析 pleasant与pleasedlanguage points:Grammar:2. fulfill v. 达到，实现，执行
We must fulfill the plan, whatever happens.无论如何要完成计划。
What important dream have you yet to realize and fulfill?
你有什么重要的梦想还没有实现和完成？
fulfill one’s needs 满足某人的需要
The earth help human beings fulfill their basic needs.
地球帮助人类实现最基本的需求。3. take energy from… 从……获取能量
All plants and animals take energy from the sun.所有的动植物都从太阳获取能量。
People must take energy from food. 人必须从食物中获取能量。language points:Grammar:4. be made from… 由……制成
The house is made from steel. 房子是由钢铁制成的。
The paper is made from wood. 纸是树木做的。
Cloth made from silk is famous for its lightness and beauty．
丝绸以轻而美著称。5. carry away 把……搬（移）走
The flood carried away the wooden bridge. 洪水把木桥冲走了。
拓展：carry off 轻而易举地完成 carry out 执行
carry forward 发扬，推进language points:Grammar:7. in a word 总之，一句话
In a word, he tires of everything. 简言之， 他对一切都感到厌倦了。
In a word, they can do everything they like with money.
总之，他们用金钱能做到他们喜欢做的一切。
In a word, I love my school. I find my school life more and more meaningful and colorful.
总之，我爱我的学校，我发现学校生活越来越有意义和多姿多彩。language points:Grammar:8. 主语+ can’t…without… …没有…不能…
Fish can’t live without water.
鱼没有水不能活。
I can’t succeed without your support.
没有你的支持，我不可能成功。
We cannot exist without air, food and water.
我们没有空气、食物和水就不能生存。 Danny, Jenny and Brian are walking in a forest. Brian thinks that trees and other plants help ______ the air. Jenny says it is pleasant _______ in the forest. He believes trees and other plants are important to people. They help people _____ their basic needs. The trees and plants take energy from the sun and __________ food. Medicine and clothing are also __________ trees and plants. And many animals live in the forest and plants also ______ everything look beautiful!Fill in the blanks and try to retell the text.cleanto walkfulfillturn it intomade frommakeConsolidation:Key phrases we learn today:从…中获取能量______________
总而言之 ____________
对…来说某事是重要的 _____________
如此多的 ________
帮助做某事 ___________
把…转换成… ___________
由…制成 ______________
带走……______________take energy fromin one wordsth. is improtant to ...so manyhelp do sth.turn ... into ...take sth. awaybe made from Complete the passage with the correct forms of the words in the box.2 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 the 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, pleasantpleasantshadebasicforest(s)coverLet’s Do It!Work in pairs. Think about why we need plants.Discuss
it and fill in the mind map. You can use some ideas from
Activity 1. Environment：
____________________Clothing and school things：
_____________________ Shelter：
____________________ Food or medicine：
____________________ Functions of trees (plants)Let’s Do It!3Summary:Words: pleasant, shade, fulfill, basic, soilPhrases: take energy from…; in a word; be made from
carry awayPatterns: It’s pleasant to do … ; 主语+can’t …without…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)．basicpleasantshadefulfillforest(s)Exercise:根据提示及句意完成句子:用方框中所给短语的适当形式填空:Exercise: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 wordcarried awayis important totake energy fromTake the medicineWrite a passage about why plants are important.
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