本單元的主題是：火，圍繞“火”，課文內(nèi)容呈現(xiàn)給給為同學的是火的產(chǎn)生、火的使用、火的危害以及相關(guān)消防安全知識。本單元的詞匯量明顯比之前要大，所以同學們在學習本單元時要有耐心哦！

Page 36 Model 3 The natural element 自然環(huán)境

Unit 1 Controlling fire 控制火災(zāi)

Look and learn
看一看,學一學

injured
受傷的
cigarette ends
煙頭

Read, find and answer
看一看,找一找,答一答

Alice and Peter are going to do a project about fire.
艾麗斯和彼德打算課外自學有關(guān)火的知識。
Miss Guo has given them some questions to think about.
郭教師提了一些問題讓他們思考。
Alice, I've got some information on my computer about fire.
艾麗斯,我在電腦上找到一些有關(guān)火的資料。
Great.
太好了。
Project: Fire
課題:火
Some questions for you to think about.
供你們思考的問題。
1 How did early men make a fire?
早期人類是怎樣生火的?
2 What did early men use fire for?
早期人類用火做什么?
3 Nowadays, do people use fire to cook food?
現(xiàn)在,人們用火做飯嗎?
4 What do workers use fire for in factories?
在工廠里工人們用火做什么?
5 What do people do to rubbish in some places?
在一些地方人們怎樣處理垃圾?
6 What may happen if we are not careful with fire?
[/cn][en]如果我們不小心用火將有什么后果?
7 What kind of people may cause hill fires?
什么樣的人會引起山火?

Page 37 Information about fire

關(guān)于火的資料
Fire can be very useful, but it can also be very harmful.
火可能很有用,但也可能很有害。
Be careful when you start a fire.
當你生火時一定要小心。
Millions of years ago, early men used a stick,
幾千年以前,早期人類用木棍,
a large piece of wood and dry leaves to make a fire.
一大塊木頭和干樹葉生火。
Early men found fire very useful.
早期人類發(fā)現(xiàn)火非常有用。
At first, they ate raw meat.
起初,他們吃生肉。
Then they discovered fire and started eating cooked food.
后來他們發(fā)現(xiàn)了火,開始吃熟食。
At night, they used fire to protect their families from wild animals.
在夜晚,他們用火保護家人免受野獸的侵襲。
They also used fire to give them light and keep them warm in winter.
他們也用火照明,在冬季用火取暖。
Nowadays, people do not only use fire to cook food or boil water.
現(xiàn)在,人們不僅僅用火做飯,燒水。
In factories, workers use it to melt metals.
在工廠里,工人們用火熔化金屬。
Metals are melted so that they can be made into different shapes.
金屬熔化后可被做成不同的形狀。
Factory workers also use fire to make glass.
工廠的工人也用火制玻璃。
Have you ever seen workers blowing glass?
你曾看過工人吹熱玻璃嗎?
They make bottles and vases of different sizes and shapes by blowing hot glass.
他們通過吹熱玻璃做出各種尺寸和形狀的瓶子和花瓶。
First, the workers put some hot glass onto one end of a long metal pipe.
首先工人們把一些熱玻璃放到一根長金屬管的一端。
Then they start blowing from the other end of the pipe.
然后,他們開始從另一端吹。
In some places of the world, people use fire to burn rubbish.
在世界的某些地方,人們用火燒垃圾。
Every day, they collect and burn a huge amount of rubbish.
每天,他們收集和燒掉大量垃圾。
Fire can destroy everything. We have to be careful when we use fire.
火能燒毀一切。當我們用火時候必須小心。
People may lose their lives and homes or they may be seriously injured in a fire.
人們可能會失去生命,家園或被火嚴重燒傷。
Every year, hill fires burn a lot of trees.
每年,山火燒毀大量樹木。
This is because there are many careless and thoughtless people.
這是因為有許多粗心大意之人。
Careless people forget to put out their barbecue fires.
粗心的人烘烤之后會忘了把火熄滅。
Thoughtless people drop burning cigarette ends everywhere.
粗心的人把燃著的煙頭到處亂扔。

Page 39

Read, think and write
讀一讀,想一想,寫一寫

What may happen during the fire-drill?
消防演習中會發(fā)生什么事?
Some students may pack their school bags before they leave their classroom.
一些學生在離開教室前會整理書包。
Some students may not queue up before they go downstairs.
一些學生下樓前也許不排隊。
Some students may run downstairs.
一些學生會往樓下跑。
Some students may forget to switch off the lights and fans in their classroom.
一些學生會忘了關(guān)掉教室中的電燈和電扇。
Some students may not remember which staircase to go down.
一些學生也許不記得從哪個樓梯下樓。
Some students may forget to meet in the playground.
一些學生會忘了在操場上集合。

Page 40

Look and learn
看一看,學一學

a fire [w]extinguisher
[/w]
滅火器
an alarm bell
警鈴
a fire-hose [w]reel
[/w]
防火皮帶卷軸

Look, read and say
看一看,讀一讀,說一說

Peter and Alice have walked round their schoolto find out where all the fire-fighting equipment is.
彼德和艾麗斯在學校走一走想找到滅火設(shè)備都在哪
They have written a list.
他們寫了一張表。
Where are the fire extinguishers on the ground floor?
一樓的滅火器在哪?
There are two fire extinguishers in the corridor on the ground floor.
一樓走廊里有兩個滅火器。
One is outside the library.
一個在圖書館外。
The other one is on the wall at the back staircase.
另一個在后樓梯的墻上。

Page 41 Tommy Target

What is it used for?
It is used for__ing...
forget remember
may must
Fire-fighting equipment
fire extinguishers
alarm bells
fire-hose reels
in the corridor
on the wall
at the staircase
outside the classroom
on the ground
first
second
third
fourth floor