Unit 2 Lesson 7 Planting trees 课件(共19张PPT) 冀教版英语八年级下册

(共19张PPT)
Unit 2 Plant a Plant
Lesson7 Planting trees
新
课
导
入
Do you know when is Tree Planting Day
Do you ever plant a tree Talk about your experience.
Language Goal
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1.能熟悉并能正确运用本课时的重点单词和短语2.能掌握并运用句型It is adj. to do sth
3.能通过植树活动树立环保意识
新知学习
课堂小结
当堂检测
学习目标
重点研讨
THINK ABOUT IT
When is Tree Planting Day in China
What are the basic steps for planting a tree
It’s March 12. Li Ming and his classmates are on a hillside. They are planting trees as a school project. A worker is there helping them.
Li Ming: Excuse me, sir. We are digging a hole. Is it big enough
Worker: Maybe you should make the hole a little bigger. It must be large
enough to hold the roots of the seedling.
Li Ming: I see. Thank you.
Worker: Now, put the seedling inside, cover the roots and fill the hole with dirt.
Then pack the dirt around the new tree with your feet.
Wang Mei: OK. By the way, there is another group of people down the hill. Are
they also coming to plant trees
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Worker: Yes. Many people are worried because the environment is changing,
and they want to do something to help.
Li Ming: These changes are serious. When there is a dust storm in spring, it gets
windy and dirty everywhere.
Wang Mei: Ms. Liu told us the wind blows the dirt and the sand here from the north.
Nothing can stop the wind because there are not many trees left.
Worker: Exactly. A lot of rich lands in the northern area have turned into desert.
Li Ming: I suppose tree planting is very important work.
Wang Mei: For sure. I really like this project. It’s also a great way to learn about nature.
Worker: Yes. It’s fun and important to plant plants.
Oh, and please remember to put a
little water in the bottom of the hole.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1. Read the lesson and write true (T) or false (F).
1). Li Ming and Wang Mei were having a picnic on a farm. ( )
2). They asked a teacher for help. ( )
3). Li Ming saw another group of people on the hillside. ( )
4). Wang Mei really liked the project. ( )
F
T
F
F
新知学习
课堂小结
当堂检测
学习目标
重点研讨
2.Fill in the blanks with the words in the box.Then put the steps for planting a tree in the correct order.
bottom hole around cover roots
Put the ____ of the seedling into the hole.
Put a little water in the _______of the hole.
________the roots and fill the hole with dirt.
Pack the dirt _______ the new tree with your feet.
Dig a big_____ enough to hold the roots of the seedling.
roots
bottom
Cover
around
hole
1
2
3
4
5
新知学习
课堂小结
当堂检测
学习目标
重点研讨
3. Complete the passage with the missing phrases.
The Green Great Wall was built across ________of the country. What is the Green Great Wall？It is made up of strips of human planted forest.
Each year ________blow a lot of soil off the land. Things are getting more and more serious. About 3 600 square kilometres of grassland are taken by the Gobi Desert every year.
A．the Green Great Wall　B．planting more trees
C．dust storms D．the northern part
D
C
The Green Great Wall project started in 1978. By ________, people hold back the expansion of the desert and raise northern China’s forest coverage by 5% to 15%. By the year 2050, ________will be about 2 800 miles long.
B
A
新知学习
课堂小结
当堂检测
学习目标
重点研讨
4. Work in pairs. Read the lesson and the passage above again. Why
should we plant trees？Talk about it and list at least three reasons.
1). We can have a rest in the shade under the tree.
2). Trees can stop the wind.
3). Trees help us fulfill our basic needs.
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
fill…with… 用......填满......
Fill the pots with earth.
He filled the bottle with wine.
be filled with ... 被……充满/塞满
But the new roads and streets will be filled
with many cars and buses soon.
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
2. by the way 顺便说一下
By the way, what do you think about this Team
By the way, which province are you from
3. dust storm 沙尘暴
The dust storm often happens in spring.
Cathy wants to buy a scarf to protect herself from the dust storm.
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
4. turn into 变成
The sofa turns into a bed.
In a flash of light, the prince turned into a frog.
5. for sure 肯定地；确定地
No one knows for sure what really happened.
没有人确切地知道到底发生了什么事。
If I talked, I would miss something, for sure.
如果我说话了，肯定会遗漏些什么东西。
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
6. in the bottom of … 在…….底部
The bottle is hidden in the bottom of a ton of cotton.
瓶子被藏在一吨棉花的底部。
In the bottom of the river, we can see many beautiful rocks.
在小河的底部，可以看见许多漂亮的石头。
7. It’s +adj. to do sth. 做某事……
It’s very dangerous for me to do such things.
我做这种事是非常危险的。
It’s important to do what is comfortable for you.
适合自己的才是最重要的。
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
8. It must be large enough to hold the roots of the seedling.
enough
adv. 足够地，充足地; 十分地; 副词 / 形容词 + enough
adj. 充足的; 足够的; enough+名词
n. 充分，足够; 满足;
(1) He walks ______. A.slowly enough B. enough slowly
(2) But that is long enough.
(3) Thank you ! I've had enough.
(4) There are enough seats for them all.
拓展：
enough+ to do sth. 足够……做某事
The boy is not old enough to go to school.(同义句）
The boy is too _______ to go to school.
A
young
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
9. I suppose tree planting is very important work.
我想，植树造林是非常重要的工作 。
suppose是及物动词，常用来表示说话人的看法、猜测
或假设。其基本用法如下：
(1)“suppose＋名词/代词＋介词短语”表示“猜测某人/某
物在……”。如：
He supposed his friend in the library.
他猜想他的朋友在图书馆里。
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
(2) be supposed to中的to是动词不定式符号，后接动
词原形，主语为人时，表示“应该；被期望”，
它可以用来表示劝告、建议、义务、责任等。主
语为物时，它表示“本应；本该”，用于表示某
事本应该发生而没有发生。它还可以用来表示
“被认为是；被相信是”。
如：I am supposed to start work at 7:30 every morning.
我理应每天早晨7:30开始工作。
课堂小结
重点研讨
当堂检测
学习目标
新知学习
重点句型：
做......怎么样
It is adj. to do sth
重点短语：
用......填满......
fill sth with sth
......被......填满
be filled with sth
顺便
by the way
确切地
for sure
在......底部
in the bottom of
Unit 2
Lesson 7
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
当堂检测
重点研讨
课堂小结
学习目标
新知学习
1. I want to be a doctor when I g______ up.
2. After the rain, the l______ of the trees became greener.
3. Do you know carrots are the r______ of the plants
根据所给首字母或汉语提示完成下列句子。
row
eaves
oots
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
当堂检测
重点研讨
课堂小结
学习目标
新知学习
4. Please w______ the trees after you plant them.
5. We can see some ______ (海报) on the wall.
6. I have no money. Can you _____ (借) some to me
7. They _______ (覆盖) the tables with clean white cloth yesterday.
posters
lend
covered
ater