why are plants important

课件24张PPT。八年级英语冀教版教学课件
Unit 2 Plant a PlantHow many main parts do plants have?
What are they?
What do plants need to grow?
Why do plants need them?
Do you think plants are important?Let’s reviewLesson 13Why Are Plants Important?树荫原因空气使人愉快的在….中间挖千克死热能量没有
东西竹子1. Are there a lot of trees where you live ?
2. What kind of things can plants do?Think about it Listen and answer 1. What are Danny, Jenny and Brian talking about?2. Where do plants take energy from?
. 3. Why do we need trees ? Do you know the difference? It’s pleasant to walk among the trees.
among与between都指在..之间
among 常用于三者或三者以上之中。
between 一般 用于两者之间。 Eg. I sit between Danny and Jenny.
The teacher walks among the
studentsFASCINATING FACTS Some animals eat only one plant. Pandas eat bamboo only. Big pandas eat eighteen kilograms of bamboo every day!挑战
“记忆”DO WE NEED PLANTS ?ProjectPRACTICE 1. A doctor can save a __________ man,
but he can’t save a __________ man. (die)
2. Let’s ______trees and why we need them.
A. to talk about B. talking about
C. talk at D. talk about
3. Donuts don’t grow ____trees.
A. in B. on C. at D. from DBdyingdead4. We make books ____trees.
from B. on C. at D.in
5. People and other animals need food ___.
A.living B.live C.to live D.lives
6.Miss Liu walks____the students.
A.between B.among C.in D.for
7.People can’t live _____air or water.
A.with B. without C.in D.and ACBB Fill in the blanks according to the Chinese given .
1. Trees _______________(帮助清洁) the air.
2. I ___________ ( 想种) a donut!
3. We can sit under a tree _____________
(阴凉里).
4. We _________ books ________( 用... ... 来制成) trees.
5. People and other animals need _________________(食物生存).help cleanwant to plantin the shademakefromfood to liveIn today’s class,
we know a lot about plants….We should love plants and protect the environment（环境)around us．Summary:Why do we need plants?Homework Write a diary about why we need trees. Preview lesson 14Thank you!Good-bye!What is energy ?
Light is energy . Heat is energy.1. What are Danny, Jenny and Brian talking about?They are talking about trees and the reason why we need them .2. Where do plants take energy from?
.They take energy from the sun and make it into food.3. Why do we need trees ?Clean the air.Give us food. We can’t live without food.Sit under a tree in the shade.Make books from trees.Many animals live in trees.Cover the soil. The water and wind don’t carry the soil away. Make and build things with trees .dead/ die/ death/ dying(1) dead 是形容词，意思为“死了的、无生 命的”，表示状态，多用作表语。 ??? The tree for ten years不能与一段时间连用。My grandpa died two years ago. has been deadThe rabbits are all dead. (3) death 是名词，意思为“死亡”等，一般作主语或宾语。 ? I am sorry to hear his death.
??His death is a great loss to us. (4) dying 是 die 的现在分词，形容词，意思是“垂死的、即将死去的”作定语或表语。 ?The doctors have saved the dying man. ???
The poor dog had no food, it was dying.