Saving the earth课件

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

Can you match them?
traffic pollution
factory pollution
more carbon dioxide
the ozone layer fewer trees
Fewer trees
Factory pollution
Traffic pollution
The ozone layer More carbon dioxide
All these problems are very serious. What can we do to solve them?
（影片）
Read and understand
Can you choose a suitable title for each paragraph from the phrases below? The earth is 4 600 million years old. We humans have lived on earth for only 35 000 years, but during this period we have changed our planet a lot in many ways. Some things we’ve done are very good for the earth while some are bad. Fewer Trees All over the world, people have cut down _________ millions of trees. When it rains or when the wind blows, the earth is taken away. Forests have become deserts, so more and more sorts of animals and plants are disappearing.

ing paper bag instead of plastic bag. 3. Don’t using one-off chopsticks. 4. Go to work on foot or by bike not by car. 5. Throw cans, bottles, paper and plastic into the dustbin.
……..
• Work in pairs, playing the role of a newspaper reporter,attendants from different continents attending the Earth Summit
Take my hand, take your hand,let’s make a beautiful
Air pollution alone causes almost three million deaths.
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Welcome to the Earth Summit
Compare with your partner and decide what you think each part of the text will be about
Introduction (para 1) Introduction of the Earth Summit
Did you do anything bad for the environment in your daily life?

To make a plan for our study is very important.
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