資源簡介

(共52張PPT)
Unit 5 Water is life
主題范疇：
人與自然
主題群：
環境保護
子主題：
環境污染及原因，環保意識和行為
Key question
What does water mean to us
understand the usefulness and importance of water.
identify some facts about water in daily life.
explore how to save water and use it wisely.
describe the relationship between water and the development of our society.
Unit objectives 單元目標
I can:
New words and phrases
everyday adj.每天的；日常的
form n.類型；種類
journey n.（尤指長途）旅行
drop n.滴；水珠
tap n.水龍頭
voice n.說話聲
eventually adv. 最后；終于
*pipe n. 管子；管道
return v. 回去；返回
rush v. 迅速移動
a bit 有點兒；稍微
at once 立即；馬上
I am one of the natural elements.
I have no colour,
I have no smell,
I have no taste,
I have no shape,
I am very valuable,
Flowers and trees need me,
You need to drink me every day.
Lead-in
Guess: Who am I
Right!
I’m water!
First thoughts
Water
01 Things you know about water
About 70% of the Earth’s surface is water.
...
02 Importance of water
Life cannot exist without water.
...
03 Ways to save water
Take a shower instead of a bath.
...
Where does water come from
What interesting facts do you know about water
How can we save water
What is the relationship between water and the development of our society
Think
Pre-reading
Look at the picture of the water cycle below and put the sentences in the correct order. Then describe the picture to the class.
①______ ②______ ③______ ④______ ⑤______
A It runs into rivers.
B It rises from the sea to the sky.
C It runs into the sea.
D It falls as rain again.
E Water falls from the clouds as rain.
E
A
C
B
D
Discuss the questions below.
(1) Where can you find water in your everyday life
(2) What does water look like, and what form does it take
Water on Earth
Water covers 70 per cent (百分之……) of Earth’s surface (表面). There is a lot of water on Earth, but 97 per cent is from the sea. We can’t drink it because it’s too salty.
About 2 per cent of water is in icecaps (冰蓋) and icebergs (冰山). People can only use 1 per cent of the world’s water.
Reading
Read the story about the journey of a drop of water.
The journey of a drop of water
Du Yun was in the bathroom. The tap was on. As she brushed her teeth, she thought about going swimming with her friends and ...
“Turn that tap off,” said an angry voice suddenly. “You’re wasting water.”
Du Yun turned the tap off and looked around, but there was no one there.
“Who are you ”
“I’m Dripple, and I’m a drop of water. Do you know where I come from ”
“From the tap ” asked Du Yun.
“Well, yes, but a few days ago, I was in a cloud,” said Dripple. “Then the wind pushed the cloud up a mountain. When the cloud cooled down, it started raining. I became one of the raindrops.”
“How did you come into my house then, Dripple ”
“I fell into a river and eventually ended up in a reservoir. Then I went to a special place. There, people cleaned me and added some chemicals to me.”
“They cleaned you Why ” Du Yun asked.
“Because I was a bit dirty. Then I travelled through the pipes under the streets and now I’m here,” Dripple explained.
“Again ”
“Yes. My journey back to the clouds starts there. Remember not to waste or pollute me. I’m valuable.”
“I’m sorry, Dripple!” Du Yun came out of the bathroom and rushed to her study. She wanted to tell her diary about this at once.
“So is this the end of your journey ” Du Yun asked.
“No. People will clean me one more time. Then I’ll go into a river, and after that, I’ll return into the sea again.”
Reading strategy
Understanding personification
Writers sometimes make animals or things seem human to make a story more interesting. In this story, the drop of water talks like a human being. This is called personification, and it helps the reader understand the writer’s ideas more easily.
Read the story again to see how the writer uses personification.
Task 1
Look at the plete Dripple’s journey with the information from the story on page 69.
ended up in a reservoir
went into a special place and got cleaned
travelled through the pipes under the streets
got to Du Yun’s home
Read line 1-4 and answer the question below.
Task 2
Why was Dripple angry at Du Yun
Du Yun was in the bathroom.The tap was on. As she brushed her teeth, she thought about going swimming with her friends and ...
“Turn that tap off,” said an angry voice suddenly. “You’re wasting water.”
Du Yun turned the tap off and looked around, but there was no one there.
Because the tap was on / she left the tap on.
Read line 5-10 and answer the question below.
How did Dripple fall down from the cloud
“Who are you ”
“I’m Dripple, and I’m a drop of water. Do you know where I come from ”
“From the tap ” asked Du Yun.
“Well, yes, but a few days ago, I was in a cloud,” said Dripple. “Then the wind pushed the cloud up a mountain. When the cloud cooled down, it started raining. I became one of the raindrops.”
When the wind pushed the cloud up a mountain, the cloud cooled down. Dripple turned into one of the raindrops. Then it fell down from the cloud.
Read line 11-15 and answer the question below.
What did people do with the water from the reservoir Why did they do so
“How did you come into my house then, Dripple ”
“I fell into a river and eventually ended up in a reservoir. Then I went to a special place. There, people cleaned me and added some chemicals to me.”
“They cleaned you Why ” Du Yun asked.
“Because I was a bit dirty. Then I travelled through the pipes under the streets and now I’m here,” Dripple explained.
They cleaned it and added some chemicals to it. Because the water was dirty.
Read line 16-22 and answer the question below.
What will happen when Dripple returns to the sea
“So is this the end of your journey ” Du Yun asked.
“No. People will clean me one more time. Then I’ll go into a river, and after that, I’ll return into the sea again.”
“Again ”
“Yes. My journey back to the clouds starts there. Remember not to waste or pollute me. I’m valuable.”
From there it will start its journey back to the clouds again.
Read line 20-24 and answer the question below.
Why did Dripple tell Du Yun not to waste or pollute water
“Again ”
“Yes. My journey back to the clouds starts there. Remember not to waste or pollute me. I’m valuable.”
“I’m sorry, Dripple!” Du Yun came out of the bathroom and rushed to her study. She wanted to tell her diary about this at once.
Because water is valuable.
a. Du Yun turned off the tap and came out of the bathroom.
_____
b. The dripple tells Du Yun that it will go back into the
sea again. It also reminds her that water is valuable. _____
c. The dripple tells Du Yun about its long journey from
the cloud to the tap. _____
d. The dripple tells Du Yun to turn the tap off. _____
e. Du Yun is brushing her teeth with the tap on. _____
5
2
4
3
1
Work in group. Rearrange the following sentences.
Task 3
Can you describe how water gets to your home Use the flow chart (流程圖) and the words to help you.
Task 4
in a cloud
drops as rain into a river
runs into a reservoir
travels through pipes
tap
bathroom chemicals
cloud drop pipes
reservoir sea add ... to ...
travel through
First ... Then ...
After that ... Next ...
Finally ...
Group discussion
(1) Do you think water is valuable Why Discuss this with your classmates.
Task 5
Possible answer:
I think water is valuable because it takes time
and hard work / difficulty for water to travel from its natural sources to our homes. Besides, there is not enough fresh water for people and animals in the world.
Saving water at home
bathroom kitchen laundry room
(2) How will you save water in the future
In the bathroom
Install low-flow shower heads.
Take shorter showers.
(Showers kept under 5 minutes can save you about 15 gallons per shower.)
If you take a bath, fill the bathtub less than halfway. (You can save 10-15 gallons per bath.)
Turn the tap off when you are brushing your teeth and washing your hands.
Install a highly efficient flush toilet. ...
In the kitchen
Wash vegetables in a container, not under running water.
Use the dishwasher for full loads only. …
In the laundry room
Use the washing machine for full loads only. …
Vocabulary practice
The words and the phrase in italics are from the story on page 69. Choose the correct answers to complete the sentences.
(1) We usually get ______ from the taps in our bathroom and kitchen.
a water b gas c electricity
(2) If someone tells you to do something at once, you need to do it ______.
a right now b later c today
(3) A drop of water is ______ water.
a a lot of b very little c about two cups of
(4) People say “Have a good journey!” when you are going to ______.
a have a party at your house
b search for information on the internet
c travel from one place to another
(5) When you return home, you _____ home.
a leave b stay at c go back
Complete Du Yun’s diary entry with the words and the phrase in italics from Exercise 1. Change the form if necessary.
drop
tap
at once
journey
return
Notes
The journey of a drop of water
Du Yun was in the bathroom. The tap was on. As she brushed her teeth, she thought about going swimming with her friends and ...
“Turn that tap off,” said an angry voice suddenly. “You’re wasting water.”
Du Yun turned the tap off and looked around, but there was no one there.
“Who are you ”
“I’m Dripple, and I’m a drop of water. Do you know where I come from ”
“From the tap ” asked Du Yun.
考慮做某事
關閉某物
四下觀望
一滴……
“Well, yes, but a few days ago, I was in a cloud,” said Dripple. “Then the wind pushed the cloud up a mountain. When the cloud cooled down, it started raining. I became one of the raindrops.”
“How did you come into my house then, Dripple ”
“I fell into a river and eventually ended up in a reservoir. Then I went to a special place. There, people cleaned me and added some chemicals to me.”
“They cleaned you Why ” Du Yun asked.
“Because I was a bit dirty. Then I travelled through the pipes under the streets and now I’m here,” Dripple explained.
冷卻
落入……中
最后到了某地
將……加入……中
有點兒……
“Again ”
“Yes. My journey back to the clouds starts there. Remember not to waste or pollute me. I’m valuable.”
“I’m sorry, Dripple!” Du Yun came out of the bathroom and rushed to her study. She wanted to tell her diary about this at once.
“So is this the end of your journey ” Du Yun asked.
“No. People will clean me one more time. Then I’ll go into a river, and after that, I’ll return into the sea again.”
……的結尾
再一次
記得不要去做某事
The tap was on. 水龍頭開著。
on在本句中為副詞，意為“（煤氣、電器、電源或水龍頭等）開著”，其反義詞是off。如：
電源通了。
The power is on.
電源關了。
The power is off.
be on
be off
請把下列句子翻譯成中文。
1. The TV is still on.
電視機仍然開著。
2. The lights were all on.
燈都亮著。
3. Is the gas off
煤氣關了嗎？
“Turn that tap off,” said an angry voice suddenly.
“把水龍頭關掉。”一個聲音生氣地說道。
① turn off = switch off
關掉（煤氣、電器、電源或水龍頭等）
turn on = switch on 打開（煤氣、電器、電源或水龍頭等）
當對象是名詞時，既可以用turn sth off，也可以用turn off sth；當對象是代詞時，代詞只能放在中間，即turn it / them off。
須注意：
表示“打開或關上窗戶或門等”要用open和close。
如：
關掉煤氣
打開機器
打開它們
關門
turn the gas off
turn on the machine
turn them on
close the door
voice 一般指人的聲音。 She has a beautiful voice.
sound 指自然界的任何聲音。 That’s a strange sound.
noise 常指不悅耳、不和諧的嘈雜聲和噪音。 Don’t make any noise!
② voice n. 嗓音；說話聲
其近義詞有sound和noise，三者的用法有所區別。
選用voice、sound或noise填空。
1. Can you hear the ________ from the room
2. They like talking with each other in a low ________ in class.
3. Can you keep quiet The ________ will make the baby cry.
4. The ________ from the office sounds like your mother’s.
voice
sound
voice
noise
add … to … 把……加入……
請在清水里加點鹽。
Please add some salt to the water.
So is this the end of your journey
那么這就是你整個旅程的終點了嗎？
the end of ……的結尾；……的盡頭
end為可數名詞，意為“末尾；結局”。如：
他把書放在桌邊。
He put his book at the end of the desk.
你可以告訴我這部電影的結局嗎？
Could you tell me the end of the film
end的常用搭配：
① at the end of 意為“在……的后期；在……的末端”，既可以指時間的后期，也可以指位置的末端。如：
在這條馬路的盡頭你會看到一個公交站。
At the end of the road, you can see a bus station.
② by the end of意為“在……之前；到……結束時”，只表示時間。
我們必須在這周前完成這項工作。
We must finish the work by the end of this week.
③ in the end意為“最后；終于”，可與at last，finally互換使用。
最后，我們到達了山頂。
In the end, we got to the mountain top.
根據中文意思完成句子。
1. 最后，他做完作業了。
____ ____ ____, he finished his homework.
2. 你可以告訴我這個故事的結局嗎？
Could you tell me ____ ____ ____ the story
the end of
In the end
Remember not to waste or pollute me.
記住不要浪費我，也不要污染我。
① remember not to do sth 記得不要做某事
其肯定形式為remember to do sth，意為“記得要做某事”。
You must remember not to pollute the environment.
你必須記住不要污染環境。
1. 選擇最佳答案。
( ) Remember _____ too much meat.
A. don’t eat B. not eat
C. not to eat D. to not eat
2. 根據中文意思完成句子。
我會記得把書還給你的。
I’ll _________ _____ _____ the book to you.
remember to return
C
I. 根據句意及所給單詞的首字母寫出所缺單詞，注意其形式。
1. Hey! Lady! You d______ your money on the ground.
2. What a beautiful v______ you have! I’m sure you will
be a singer in the future.
3. Believe it or not, of all the water on Earth, only about
3% is f______ water.
4. A______ some sugar to the milk, please.
5. In big cities, all the tap water comes to your home
through the p______.
ipes
ropped
oice
resh
dd
II. 根據中文意思完成句子。
1. 燈還亮著，你走時沒關燈嗎？
The lights are still on. Didn’t you ____ ____ ____ when
you left
2. 你想在牛奶里加些糖嗎？
Would you like ____ ____ ____ sugar ____ the milk
3. 記得下次上課別再遲到了。
_________ ___ ___ ___ late for class again next time.
4. 你知道我來自哪里嗎？
Do you know where I ____ _____
come from
turn them off
to add some to
Remember not to be
Thank you!

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