英语：unit 11 let’s protect the environment 课件（北京课改版九年级）

课件9张PPT。let's Protect the Environment learning1 The problem of Environment2 Work in pairs: What do you think is the most serious environmental problem?water shortage global warming
water pollution animals in danger
resource shortage loss of forests A: What do you think is the most serious environmental problem
B: I think it is air pollution.
A: What are the possible causes of the air pollution
B: It’s polluted by the gases from cars and factories.
A: What can we do to prevent the pollution?
B: I think we can plant more trees.3 Read the text and answer the questions in your bookQuestions:
1 How are we destroying the land on which we are living?
2 What has caused the increasing levels of carbon dioxide
3 What has caused the increase of the earth’s surface temperature?
4 What are the side effects of global warming?
5 What are the three solutions suggested in the text ?realizehow much her parents love her that we are destroying the land
---------------------------------developour country
A sense of humor
-------------------------Try to make sentences with the above expressions.Since she became a mother herself, she realized how much her parents loved her.Example4: study the following expressions and try to make another one.5, Write: Decide what our biggest environmental problem is . Write a paragraph to suggest what we should do about it. I think the biggest environmental problem is…
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----------------------------------------6 Grammar Focus Do you know what carbon dioxide is ?
Children want to know how they can get the clean earth back.
The teacher asked who cleaned the classroom
We wonder if we can do something to save earth.疑问句在从句的语序要变为陈述语序7 Fill in the blanks with both , either, none or neither.1 There are some shops on sides of the street.
2 A: Which of the two buses shall I take to the airport?
B: You can take one.
3 She speaks French and English.
4 I left my book on the table or in the drawer, but where is it now ?
5 The hotel is spacious nor comfortable
8 The following are some suggestions to conserve water. Do you have more suggestions Things to do to conserve water:
Make sure taps are tightly closed
report cases of faulty taps to parents or teachers.
don’t leave the tap running while you brush your teeth
Have a quick shower instead of a long bath
repair taps that leak.