资源简介

(共56张PPT)
Section 4
Key question
主题范畴：人与自然
Unit 5 Water is life
What is the relationship between water and the development of our society
Focusing on culture
聚焦文化
Lead-in
Water is not only essential for life, but is also important for human society. Let’s explore the role water plays in the development of cities.
水不仅是生命的必需品，对人类社会也至关重要。让我们一起探索水在城市发展中的作用。
Pre-reading
population
agriculture
trade
industry
role
goods
overseas
n. 人口
n. 农业
n. 贸易；买卖
n. 工业；生产制造
n. 角色
n. 商品；货品
adv. 在国外；向海外
New words
Pre-reading
global
income
nearly
business
leisure
throughout
duty
adj. 全球的；全世界的
n. 收入；收益；所得
adv. 几乎；差不多；将近
n. 买卖；生意
n. 闲暇；空闲；休闲
prep. 自始至终；贯穿整个时期
n. 责任；义务
New words
在……起作用
蒸汽机
幸亏；由于；因为
全球贸易
因此
在海岸边
确保；设法保证
play a role in…
steam engine
thanks to
global trade
thanks to
on the coast
make sure
New phrases
If you look at a population map of any country in the world, you will see that most people live close to water. The world’s biggest cities are next to rivers, lakes or the sea. This isn’t an accident. We use water for all kinds of things in everyday life, and we also need it for agriculture and for trade.
　　
Cities and water
Reading
In fact, water creates jobs and helps different industries to develop. At the end of the 18th century, water played a big role in the Industrial Revolution. Water powered the first machines in the clothes industry, such as Richard Arkwright’s spinning machines. It also provided the first steam engines with steam. Thanks to rivers and oceans, businessmen could ship their goods overseas. The growing global trade created more jobs and provided more income for people. As a result, the cities that were close to water grew much larger.
By 2008, over half of the world’s population lived in cities. Nearly all of these cities are on the coast or by rivers or lakes. This is because cities need water for people’s homes, industry, business, tourism and leisure activities. Throughout history, water helped create and develop cities. It is now our duty to make sure we don’t waste water or pollute it.
Task 1 Group work: Match each paragraph with its main
idea.
Most people live close to water
Water helps create jobs and develop industries
Cities need water for different activities
Para.1
Para.2
Para.3
Task 2 Think and answer
1. Why are the world’s biggest cities often next to rivers, lake or the sea
2. What role did water play in the Industrial Revolution
Because we use water for all kinds of things in everyday life, and we also need it for agriculture and for trade.
Water powered the first machines in the clothes industry, and it also provided the first steam engines with steam.
在发明农耕前，人们通过捕鱼或狩猎谋生。大约 1.2 万年前，人们开始种植庄稼，因此拥有好的水源变得非常重要。最终，人们开始使用水力来磨面，还建造了管道来运输水。
Task 3 Complete the sentences with the words and the phrases below.
Change the form if necessary.
industry
global
As a result
Nearly
population
Task 4 Group work: Research a city that is close to water and answer the
question.
(1) What are the advantages of living in such a city
(2) Are there any water-related problems there What are they
(3) How can people deal with them
Post-reading
What might be the disadvantages of living in cities near rivers, lakes or the sea Discuss in groups.
Phrases
Find out the phrases from P78 to P79.
1. 各种各样的 ________________ (P78)
2. 在日常生活中 ________________ (P78)
3. 在...的结尾 ________________ (P78)
4. 在…起作用 ________________ (P78)
5. 提供 ________________ (P78)
6. 蒸汽机 ________________ (P78)
all kinds of
in everyday life
at the end of
play a role in
provide with
steam engine
Find out the phrases from P78 to P79.
7. 幸亏；由于 ______________ (P78)
8. 因此 ______________ (P78)
9. 确保 ______________ (P78)
10. 大约…年前 ______________ (P79)
11. 越来越干 ______________ (P79)
12. 超过 ______________ (P79)
thanks to
as a result
make sure
around ... years ago
drier and drier
more than
Language points
1. 这本书不仅有趣，而且具有教育意义。
1. Water is not only essential for life, but is also important for human society.
句意：水不仅是生命必需品，对人类社会也至关重要。
即学即练
The book is interesting, educational.
① not only ... but also ... 是一个常用的并列连词词组，
用于连接两个并列的成分，表示“不仅……且……”。
not only
but also
2. If you look at a population map of any country in the world, you will see that most people live close to the sea.
句意：如果你看看世界上任何一个国家的人口地图，你会发现大多数人都住在海边。
即学即练
( ) If you fail in the exam, he disappointed．
由if引导的条件状语从句，表示在某种条件下某事
很可能发生。如果主句用一般将来时，从句要用一
般现在时表示将来，即“主将从现” 。
A. is B. will be C. be
B
1. 教育在个人成长中起基础性作用。
3. At the end of the 18th century, water played a big role in the Industrial Revolution.
句意：在18世纪末的工业革命中，水起着重要的作用。
即学即练
Education fundamental（基础的） . personal growth.
play a role in ... 意为“在……中起作用”。
plays a
role in
1. 他犯了个大错，结果丢了工作。
2. 今天比昨天冷得多。
4. As a result, the cities that were close to water grew much larger. 句意：因此，临水城市的规模变得更大。
即学即练
He made a big mistake, __ __ _____, he lost his job.
① as a result 意为“作为结果，因此”。
② much + 形容词比较级，表示程度上的大幅度增加
表示“更……”。
It’s _____ ______ today than it was yesterday.
as a result
much colder
1. 旅行时确保携带护照。
2. 在睡觉之前他总是确保锁好门。
5. It is now our duty to make sure we don’t waste water or pollute it.
句意：我们当下的责任是确保我们自身不浪费或污染水资源。
即学即练
He always _____ ____ __ lock the door before going to bed.
make sure 意为“确保；设法保证”，后面接名词、to do或that从句。
_____ ____ ____ you have your passport when you travel.
Make sure that
makes sure to
Practice makes perfect!
I. 根据首字母提示写单词，完成句子。
1. Money played an important r_________ in his life.
2. This is a good piece of b_________ for me! How much
will you pay
3. Bangladesh(孟加拉国) now has a p_________ of about
110 million.
4. The main purpose of i_________ is to create wealth.
5. I am willing to make a t_________ with you.
6. I’ve worked here for n_________ two years.
ole
usiness
opulation
ndustry
rade
early
II.根据汉语意思完成句子，每空一词。
7. 由于我们的努力，我们可以按时完成任务。
_______ _______ our hard work, we can finish the task on time.
8. 阅读在自我提升上起到重要作用。
Reading books _______ _______ important _______ _______ improving oneself.
9. 由于雨太大，所有航班都延误了。
_______ _______ _______ of the heavy rain, all flights have been delayed.
10. 谁发明了蒸汽机？
Who invented the _______ _______
Thanks to
plays an role
in
As a result
steam engine
11. 杰克不仅学习好，而且乐于助人。
Jack is _______ _______ good at studying, _______ _______ ready to help other.
12. 开车前要检查一下，确保灯一定都要亮。
Check your car before you drive to _______ _______ that your lights are working.
13. 她以前住在海滨的一个小村子里。
She used to live in a small village _______ _______ _______.
14. 我们有责任保存和传播我们的传统文化。
_______ _______ _______ _______ keep and spread our traditional culture.
not only but
also
make sure
on the
coast
It’s our duty to
More Exercise
close to
agriculture
industries
played a big
role
overseas
Throughout
business
in fact
help sb. (to) do sth.
play a role in ...
steam engine
thanks to
as a result
make sure
opulation
oods
lobal
usiness
early
griculture
ndustry
ncome
plays a role
in
Make sure
As a result
steam engine
It is our duty
to
A. But most of the water is salt water.
B. We can turn on the tap and get water at once.
C. We had better take a shower instead of having a bath.
D. However, people in some other countries only have 5 to 10 liters to use!
E. If every adult in the UK does this, we will save enough water for 500,000 homes.
B
A
D
E
C
Cross-curricular connectionl Biological science
跨学科链接 生物科学
Discussion
What are they doing
They are drinking water.
2. Why do people need water
Because water helps people stay healthy. Humans cannot live without water.
Water is important to life. About 55% - 60% of the adult human body is water. Let’s find out more facts about water in the human body.
水对于生命至关重要。成年人身体大约55% -60%均为水。让我们一起发现更多关于人体中的水的事实。
Cross-curricular connection Biological science
The water in our bodies
All living things need water. In fact, water is an important part of all plants and animals. For example, about 95% of the weight of a cucumber is water. For animals, that figure is usually around 60%.
When we are born, about 70% – 80% of our body weight is water. This number goes down as we grow up. For an adult man, water makes up about 60% of the body weight. The amount of water is a bit lower for women: around 55%. This is because women usually have more body fat than men.
A lot of water leaves our bodies every day, so we need to replace it. Adults need to drink about 2–3 litres per day to stay healthy. Every time we go to the bathroom, we lose water. Every day, there is around 1.5 litres of water in our urine. If your urine is very yellow, you need to drink more water. The body also loses water to help it cool down. This is called sweat. We lose about 500 ml of water as sweat per day.
It is normal to sweat a lot when we do sport or go out in hot weather. However, if we lose more than 5% of our body weight in water, we will get tired. It is dangerous to lose more than 10%. If that happens, we will feel ill. Remember to bring a water bottle every time you play sport!
Read the text. Answer the following questions.
Why is water important in human bodies
Why do we need to drink water
Why do we sweat (出汗)
What should we do when we lose water
Because water makes up 70—80 percent of our body weight.
To stay healthy.
To help our bodies cool down.
We should drink more water.
Read the plete the notes below.
about 60%
about 55%
about 70%—80%
1.5
0.5
Practical activities
Work in groups and choose one of the tasks.
Study and research:
What else does the body use water for
Group discussion:
How can we make sure we drink enough water
Project 项目
A fact sheet includes:
Making a presentation for World Water Day
World Water Day (22 March) is about helping people without access to safe water. In this project, you are going to work in groups and make a presentation on the topic “Water is life” for World Water Day.
2. An introduction
1. A title
3. Some numbers or pictures
Facts about water
The importance of water
Different uses of water
Ways of saving water
Wits corner 智慧角
When the well is dry, we learn the worth of water.
— Benjiamin Franklin
当井干了，我们便知道水的价值。
（井枯方知水可贵。）
—本杰明·富兰克林
（美国政治家、科学家）
More wits
1. Water is the source of all life.
水是一切生命的源泉。
2. The wise love water, while the benevolent love
mountains.
智者乐水，仁者乐山。
3. Water is the driving force of all nature.
水是自然界的驱动力。
4. Treasure the water is to cherish your life.
珍惜水就是珍惜生命。
5. Water can carry a boat, and it can also overturn it.
水能载舟，亦能覆舟。
In this class, we have learned
new words and expressions in the text.
the detailed information and the structure of the text.
some important language points in the text.
Summary
Self-assessment
How well do you know about this lesson Tick the boxes.
I understand the new expressions in the text. 口 口 口
I understand the detailed information about the text. 口 口 口
I know how to retell the text with key words. 口 口 口
I think I can use all language points correctly. 口 口 口
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