Unit 2 Plant a Plant Lesson 7 Planting Trees 课件(共23张PPT，无音频)

(共23张PPT)
冀教版八年级下册 Unit 2
When is Tree Planting Day in China?
March 12.
When we want to plant trees, we need to dig a hole at first.
The hole must be large enough to hold the roots of
the seedling.
He is putting the seedling in the hole.
Then they cover the roots and fill the hole with dirt.
Please remember to put a little water in the bottom of the hole.
He is packing the dirt around the new tree with his feet.
There are some
dirt on the girl’s.
The little girl’s face
is very dirty.
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.
bottom
Cover
around
hole
roots
1. Now, put the seedling inside, cover
the roots and fill the hole with dirt.
现在，把种子放在里面，覆盖根，
用土把洞填满。
fill…with… 用……填满
Be filled with …(被)……充满/填满
We fill the basket with colourful eggs
(v. 装满；充满）
The basket is filled with colourful eggs
(被充满、装满）
这个篮子放满了彩蛋。
2. By the way, there is another group of
people down the hill.
顺便问一下，这是山下的另一群人吗？
by the way 顺便说一下; 附带问一句
e.g. By the way, I found that book.
顺便提一下, 我找到那本书了。
What’s the time, by the way?
顺便问一句, 几点钟了？
3. A lot of rich lands in the northern
area have turned into desert.
北方许多肥沃的土地变成了沙漠。
turn into 变成 ?
农民们正在把荒地变成了稻田。
e.g. The farmers are turning waste
land into rice fields.
4. For sure, I really like this project.
毫无疑问地，我很喜欢这个方案。
for sure 肯定地; 确定地
e.g. He’ll come for sure.
他肯定会来的。
be sure to do sth. 务必(去做某事)
make sure (of sth./that…)
确保; 设法保证
5. Oh, and please remember to put a
little water in the bottom of the hole.
哦，请记住要放一点水在洞的底部。
in the bottom of 在……底部
他发现箱子下面有个很大的洞。
e.g. He found a big hole in the bottom
of the box.
Please try to act out “How to plant a tree?”One student read the steps,others do some actions.
Work in groups
每组同学请试着表演怎样种树。一名学生来读，其他的学生来做动作。
Read the text and discuss: “Why do we need to plant trees?”.
This is a picture of dust storm
To prevent (预防）dust storm，we need to build
The Green Great wall
Complete the passage with the missing phrases.
the Great Green Wall
B. planting more trees
C. dust storms
D. the northern part
The Green Great Wall was built across _______ 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.
D
C
About 3 600 square kilometres of grassland are taken by the Gobi Desert every year.
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 2800 miles long.
B
A
We have only one earth. Protect our earth, protect our home.
Write a short passage about how to plant trees.
Read the lesson and the passage (Ex.three), Make a list why should we plant trees？Write out at least three reasons.