资源简介

(共43张PPT)
北京版 四年级
上
Unit Six Get Close to Nature
Lesson 21 Snow Turns into Water
Core competences
By the end of the lesson, I will be able to...
read and understand the conversations;
describe and explain common natural phenomena.
阅读并理解对话内容；
描述并解释常见自然现象。
1
Lead in
导入环节
3
Practice
知识操练
5
Summary
课堂总结
2
Presentation
新知讲解
4
Production
输出运用
6
Homework
作业设计
01
Lead in
How do you usually get close to nature
Look and say
I see the green grass.
I smell the flowers.
Look and say
I hear the birds.
I feel the wind.
Look and say
I feed the sheep.
I feed the chickens.
Look and say
I see the green grass.
I look at the stars.
01
Lead in
We can find interesting things in cold days. What are they Let’s have a look.
02
Presentation
Listen and repeat
It’s so cold today.
Yes. I can see your
red nose. Haha!
Listen and repeat
Look! There is ice
on the window.
Wow, so beautiful!
Why is there ice
Listen and repeat
The room is warm, and the glass is cold. The water in the air gets cold on the glass. It turns into ice.
Let's learn
glass
玻璃
The cup is made of glass.
Let's learn
turn
转向，改变
Turn left at the first crossing.
Listen and repeat
Look, it’s snowing
outside. I love snow.
Me, too. Let’s go out and have fun after class.
Let's learn
after
在……之后
We play outside after school.
Listen and repeat
Oh, no! The sun comes out. Snow turns into water.
That’s too bad!
Let's learn
sun
太阳
The sun is shining brightly.
Let's learn
bad
糟糕的
Too much rain is bad for the plants.
glass
after
turn
bad
sun
glass
turn
sun
玻璃
改变
太阳
bad
after
糟糕的
在……之后
03
Practice
Listen and find
cold
turns into ice
turns
into ice
Read, look and say
The water gets cold. It turns into ice.
Read, look and say
The ice gets warm. It turns into water.
Read and complete
It’s so _____today.
Yes. I can see your
red ______. Haha!
cold
nose
Read and complete
Look! There is _____on the window.
Wow, so beautiful!
Why is ______ice
ice
there
Read and complete
The room is warm, and the ______is cold. The water in the air _____cold on the glass. It _______into ice.
glass
gets
turns
Read and complete
Look, it’s _______
outside. I love snow.
Me, too. Let’s go out and have fun _________class.
snowing
after
Oh, no! The _____comes out. Snow turns into water.
That’s too ____!
Read and complete
sun
bad
Act it out
Pronounce clearly!
发音清晰！
Talk fluently!
对话流畅！
Act confidently!
表演自信！
两人一组，分别扮演不同的角色，表演对话。
Act out the conversation with your partner.
Water is amazing. It can be solid, liquid, or gas at different temperatures.
04
Production
Listen and choose
A
B
C
Listen and check
Different me
Hello, I’m Mr Water. You can find me everywhere. Ah, the sun is up over the sea. It's hot now. I get very small. I'm so scared. I fly up into the air. Where am I It is cool here. Wow, I turn into water again. What am I going down It's cold. Oh, no! I turn into snow and ice.
Listen and complete
hot
fly
cool
turn into water
cold
turn into snow and ice
Think and say
Oh, it’s too hot today. My
ice is turning into water.
Don’t worry.
Let’s put the ice in here.
It gets cold here. Water turns into ice again.
Think and say
There is some water on the
leaves in the early morning.
Do you know why
Let me see.
Let’s learn
At night, the air gets cold. The water in the air is called water vapor(水蒸气).
When this water vapor touches the cold leaves, it gets cold too and turns into tiny water drops(小水滴).
We call these drops dew(露珠).
Watch and learn
05
Summary
Words
glass, turn, after, sun, bad
Sentences
The water turns into ...
Snow turns into ...
01
02
06
Homework
Must do:
Read and repeat the conversation on page 70.
Act out the conversation with your partner.
Choose to do:
Learn more about the water cycle.
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