资源简介

(共17张PPT)
Unit 8 Our Blue Planet
Lesson 2 Function and Pronunciation
Learning Objectives
In this class, you will
学习字母组合al, ar, wa, ch/tch, dge/g, gu, gh, ght的正确发音
利用升调和降调阅读句子，并掌握升、降调的规律
通过文本了解和水相关的事实并完成对话总结
Lead-in
It’s water.
Guess what it is according to the descriptions.
It covers about 71% of our earth.
It covers about 70% of our body.
We can’t live without it.
We drink it every day.
What is it

Pre-listening
Activity 1 A. Pair Work. Look at the pictures and talk about where water comes from.
sea
rain
ice
river
While-listening
Activity 2 Listen to the conversation and answer the question.
Xiao Ya: Mom, where does water come from
Mom: There is water everywhere. It’s under the ground, in the ocean and in the sky.
Xiao Ya: But I can’t see any water in the sky.
Mom: It’s in the air. On sunny days, water goes up into the sky and forms clouds.
Xiao Ya: I see. As we all know, water is very important to us.
Mom: Yes. We need to drink water every day.
Xiao Ya: We also need to use a lot of water in our life.
Mom: That’s right. And the good thing is we have a lot of water on the earth.
Xiao Ya: Yes. Just because of this, we call the earth a blue planet.
Mom: But we can only use about 1% of the water on the earth. The rest is all sea water
or ice.
Xiao Ya: That is very little water. Let’s save every drop of water.
What are Xiao Ya and her mom talking about
They are talking about water.
While-listening
Activity 2 Listen again and mark T or F.
Xiao Ya: Mom, where does water come from
Mom: There is water everywhere. It’s under the ground, in the ocean and in the sky.
Xiao Ya: But I can’t see any water in the sky.
Mom: It’s in the air. On sunny days, water goes up into the sky and forms clouds.
Xiao Ya: I see. As we all know, water is very important to us.
Mom: Yes. We need to drink water every day.
Xiao Ya: We also need to use a lot of water in our life.
Mom: That’s right. And the good thing is we have a lot of water on the earth.
Xiao Ya: Yes. Just because of this, we call the earth a blue planet.
Mom: But we can only use about 1% of the water on the earth. The rest is all sea water
or ice.
Xiao Ya: That is very little water. Let’s save every drop of water.
Water is under the ground, in the ocean and in the sky. ( )
Water can go up into the sky and form clouds. ( )
We need little water in our life. ( )
We can only use 2% of the water on the earth. ( )
T
T
F
F
a lot of
1%
While-listening
Activity 2 Read the conversation and practice it with your partner.
Xiao Ya: Mom, where does water come from
Mom: There is water everywhere. It’s under the ground, in the ocean and in the sky.
Xiao Ya: But I can’t see any water in the sky.
Mom: It’s in the air. On sunny days, water goes up into the sky and forms clouds.
Xiao Ya: I see. As we all know, water is very important to us.
Mom: Yes. We need to drink water every day.
Xiao Ya: We also need to use a lot of water in our life.
Mom: That’s right. It’s lucky that we have a lot of water on the earth.
Xiao Ya: Yes. Just because of this, we call the earth a blue planet.
Mom: But we can only use about 1% of the water on the earth. The rest is all sea water
or ice.
Xiao Ya: That is very little water. Let’s save every drop of water.
['evriwe (r)] adv. 到处
[graund] n. 地面
['intu:] prep. 到……里面
[f :m] v. (使)形成
[klaud] n. 云
[dr p] n. 滴 v. (使)掉落
Complete the summary.
While-listening
Water is __________. It is under the ground, in the ________ and in the sky. On sunny days, water goes up into the sky and forms ________. We need to drink water every day and we also use a lot of water in our life. The earth is a blue planet. It is full of water. But we can only use about ________ of the water on it. We need to save every ________ of water.
everywhere
ocean
clouds
1%
drop
[fu:l] adj. 充满的
Activity 4 Pair work. Talk about the questions and make up a new conversation about water.
Post-listening
Where is water from
How important is water to us
Why do we need to save water
Pronunciation
Activity 1 Listen to the chant. Pay attention to the pronunciation of the colored letters.
Some children walk down from the bridge.
At the river they start to watch.
They always want to catch a fish.
So they sit down and make a wish.
Right then, they see one large enough.
Guess what! They catch it and laugh!
Letter(s) al ar wa ch/tch dge/g gu gh t
Sound / :/ / :l/ /ɑ:/ /w / /t / /d / /G/ /f/ /t/
Word walk call also always start dark want watch chess catch bridge judge large age guess guide laugh enough right fight
Pronunciation
Activity 2 Listen and read the sounds and words aloud.
Pronunciation
Activity 3 Listen and circle the word with a different sound in each group.
1. / :l/ always talk fall 2. /ɑ?/ part around large
3. /t / chair school teach 4. /d / bridge orange guess
5. /G/ gun guest age 6. /f/ high laugh tough
Practice the following chant and read it aloud in class.
On the playground, with a basketball.
We play and laugh. Everyone likes it all.
Dancing around the moonlight.
The stars in the sky look very bright.
The playground seems so large,
But I believe we will never age.
Pronunciation
Pronunciation
Read the sentences and pay attention to the tone.
Mom, where does water come from
As we all know, water is very important to us.
Just because of this, we call the earth a blue planet.
How important is water to us
Let’s save every drop of water.
Pronunciation
Activity 4 Read the sentences aloud and mark the last word with a rising tone ( ) or a falling tone ( ), and then listen and check.
Look at this river on the map.
Are there any people in the desert
Turn off the tap when you brush your teeth.
What about making a poster about saving water
Water comes from rivers, lakes and oceans.
Summary
We learned:
1. some facts about water.
2. to pronounce the words with al, ar, wa, ch/tch, dge/g, gu, gh, ght in them correctly.
3. to read the sentences with a rising tone or a falling tone coherently.
We can:
make up a conversation about why water is so important to us.
Homework
You should:
practice the conversation in Activity 4.
You may:
search for more information about the importance of water and share it in class.

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