本单元的主题是：火，围绕“火”，课文内容呈现给给为同学的是火的产生、火的使用、火的危害以及相关消防安全知识。本单元的词汇量明显比之前要大，所以同学们在学习本单元时要有耐心哦！

Page 36 Model 3 The natural element 自然环境

Unit 1 Controlling fire 控制火灾

Look and learn
看一看,学一学

injured
受伤的
cigarette ends
烟头

Read, find and answer
看一看,找一找,答一答

Alice and Peter are going to do a project about fire.
艾丽斯和彼德打算课外自学有关火的知识。
Miss Guo has given them some questions to think about.
郭教师提了一些问题让他们思考。
Alice, I've got some information on my computer about fire.
艾丽斯,我在电脑上找到一些有关火的资料。
Great.
太好了。
Project: Fire
课题:火
Some questions for you to think about.
供你们思考的问题。
1 How did early men make a fire?
早期人类是怎样生火的?
2 What did early men use fire for?
早期人类用火做什么?
3 Nowadays, do people use fire to cook food?
现在,人们用火做饭吗?
4 What do workers use fire for in factories?
在工厂里工人们用火做什么?
5 What do people do to rubbish in some places?
在一些地方人们怎样处理垃圾?
6 What may happen if we are not careful with fire?
[/cn][en]如果我们不小心用火将有什么后果?
7 What kind of people may cause hill fires?
什么样的人会引起山火?

Page 37 Information about fire

关于火的资料
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.
当你生火时一定要小心。
Millions of years ago, early men used a stick,
几千年以前,早期人类用木棍,
a large piece of wood and dry leaves to make a fire.
一大块木头和干树叶生火。
Early men found fire very useful.
早期人类发现火非常有用。
At first, they ate raw meat.
起初,他们吃生肉。
Then they discovered fire and started eating cooked food.
后来他们发现了火,开始吃熟食。
At night, they used fire to protect their families from wild animals.
在夜晚,他们用火保护家人免受野兽的侵袭。
They also used fire to give them light and keep them warm in winter.
他们也用火照明,在冬季用火取暖。
Nowadays, people do not only use fire to cook food or boil water.
现在,人们不仅仅用火做饭,烧水。
In factories, workers use it to melt metals.
在工厂里,工人们用火熔化金属。
Metals are melted so that they can be made into different shapes.
金属熔化后可被做成不同的形状。
Factory workers also use fire to make glass.
工厂的工人也用火制玻璃。
Have you ever seen workers blowing glass?
你曾看过工人吹热玻璃吗?
They make bottles and vases of different sizes and shapes by blowing hot glass.
他们通过吹热玻璃做出各种尺寸和形状的瓶子和花瓶。
First, the workers put some hot glass onto one end of a long metal pipe.
首先工人们把一些热玻璃放到一根长金属管的一端。
Then they start blowing from the other end of the pipe.
然后,他们开始从另一端吹。
In some places of the world, people use fire to burn rubbish.
在世界的某些地方,人们用火烧垃圾。
Every day, they collect and burn a huge amount of rubbish.
每天,他们收集和烧掉大量垃圾。
Fire can destroy everything. We have to be careful when we use fire.
火能烧毁一切。当我们用火时候必须小心。
People may lose their lives and homes or they may be seriously injured in a fire.
人们可能会失去生命,家园或被火严重烧伤。
Every year, hill fires burn a lot of trees.
每年,山火烧毁大量树木。
This is because there are many careless and thoughtless people.
这是因为有许多粗心大意之人。
Careless people forget to put out their barbecue fires.
粗心的人烘烤之后会忘了把火熄灭。
Thoughtless people drop burning cigarette ends everywhere.
粗心的人把燃着的烟头到处乱扔。

Page 39

Read, think and write
读一读,想一想,写一写

What may happen during the fire-drill?
消防演习中会发生什么事?
Some students may pack their school bags before they leave their classroom.
一些学生在离开教室前会整理书包。
Some students may not queue up before they go downstairs.
一些学生下楼前也许不排队。
Some students may run downstairs.
一些学生会往楼下跑。
Some students may forget to switch off the lights and fans in their classroom.
一些学生会忘了关掉教室中的电灯和电扇。
Some students may not remember which staircase to go down.
一些学生也许不记得从哪个楼梯下楼。
Some students may forget to meet in the playground.
一些学生会忘了在操场上集合。

Page 40

Look and learn
看一看,学一学

a fire [w]extinguisher
[/w]
灭火器
an alarm bell
警铃
a fire-hose [w]reel
[/w]
防火皮带卷轴

Look, read and say
看一看,读一读,说一说

Peter and Alice have walked round their schoolto find out where all the fire-fighting equipment is.
彼德和艾丽斯在学校走一走想找到灭火设备都在哪
They have written a list.
他们写了一张表。
Where are the fire extinguishers on the ground floor?
一楼的灭火器在哪?
There are two fire extinguishers in the corridor on the ground floor.
一楼走廊里有两个灭火器。
One is outside the library.
一个在图书馆外。
The other one is on the wall at the back staircase.
另一个在后楼梯的墙上。

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