高二英语Saving-the-earth课件

4.Why education is so important? With better education, there will be less such problems on the earth.
What’s the purpose of the Earth Summit?
To help people understand that there exist serious problems. To make people know they can do a lot to improve the present situation.
Secretary-General Kofi Annan
"This Summit makes sustainable development a reality. This Summit will put us on a path that reduces poverty while protecting the environment, a path that works for all peoples, rich and poor, today and tomorrow."
Unit 9 Saving the earth
What’s wrong with our earth
Environment
War & Peace
Poverty & Hunger
Population
It’s reported that there are more than 46,000, 000,000 people all over the world
For example,the theme of the first Earth Summit was on the Human Environment, the theme of the 14th Earth Summit in Beijing in 1995 was on Action for Equality, Development and Peace, and the theme of the 21st Earth Summit in Johannesburg in 2002 was on Sustainable Development.

Para 3
If we are to develop the world successfully, we must make sure that everyone is able to take part in the new world we create.
Be to do sth 计划,打算
Reading Practice
1.Read the text on page 53 and mark all the past participles you can find in it. 2. Do word study on page 53.
Homework
1. Exx. 2, 3
P.115
Welcome to the earth summit
Para 1
In 1979, the United Nations held a meeting in Stockholm, Sweden to share ideas about ways to take better of the earth. Stockholm, Sweden share take better of
饮用水污染 薄弱的公共卫生 空气污染
Air pollution
According to the World Health Organization, the big three cause more than seven million deaths every year.
According to
Listening
Look at the text , Listen to the recorder and try to find somanguage points

e died from polluted There are serious accidents
air in both Russia and India.
that polluted the air.
I
R Trees in the forest are destroyed
7. 7. The writer uses the examples of the accidents in both India and Russia to explain how water is polluted.(F)
Phenomena
E The area of desert is growing A every year. R T Good soil is gradually lost. H
2. 2. Land may become poor if farmers do not limit their cattle.
3. 3. Good soil is gradually lost these days as trees are being cut down.
4. 4. Air pollution and water pollution are the two causes of problem that many parts of the world have become desert.
and fish in the lakes are killed. Chemical rain.
A lot of things have to be down to reduce pollutionn. New laws should de passed and people should

stop to do sth.停下来去做某事（表目的） stop doing sth.停止做某事（作宾语） I suggest we should stop to have a rest The students stopped talking when the teacher came in.
go on to do sth.继续做另一件事 go on doing sth.接着做同一件事 After a short rest, they went on doing the work. After finishing the homework, the students went out to play football.
6.动词不定式作状语
动词不定式作状语用来修饰动词、形容词、 副词或整个句子，通常表示目的、原因、结 果、程度等。
I got up early in order to /so as to catch the first bus. (作目的状语） To learn English well, you should practise it whenever possible. (作目的状语） He wept to hear the news. (作原因状语） I am glad to see you here. (作原因状语）
2. 动词不定式的进行式 动词不定式的进行式表示动作正在进行，和 句子谓语动词所表示的动作同时进行。
He pretended to be reading when his mother came into his room.
They are said to be building another bridge across the river