2Teaching Aims:1. Participate in the discussion about these environmental problems to improve oral English.2. Enlarge the knowledge about the environment.3. Think about what we can do for the environment.
4What kind of pollution does this picture show? Picture talkingWhat kind of pollution does this picture show?If the factory is in your neighborhood, how do you think the smoke will affect you?
51. Why do people chop down so many trees every year? Picture talking1. Why do people chop down so many trees every year?2. What will happen if this continues?
6Picture talking1. What might be the reasons for the terrible forest fire in the picture?2. Do you think the forest plays an important role in balancing nature?
72. What measures has our government taken to better our environment? Picture talking1. Have you ever experienced any sandstorms or have you seen some on TV?2. What measures has our government taken to better our environment?
81. What kind of pollution does this picture show? Picture talking1. What kind of pollution does this picture show?2. Do you prefer to live with a factory nearby? Why?
91. How do you feel when you see piles of rubbish like this? Picture talking1. How do you feel when you see piles of rubbish like this?2. Do you think it possible for us to recycle some of the rubbish?
10The earth is facing serious problems Picture talkingThe earth is facing serious problemsLook at the picture above and discuss which ones are caused by nature and which ones are caused by man ?
11What caused the destruction of the city of Pompeii? Mount Vesuvius erupted and lava, ash and rocks poured out of it onto the surrounding countryside. All the people in Pompeii were buried alive, and so was the city.Remains of PompeiiWas the destruction of Pompeii caused by man or by nature?Can you think of other natural disasters that damage the environment?
13Let us learn more about Wenchuan earthquake: On Monday, May 12, 2008, at 2:28 p.m. China Standard time, a powerful earthquake recording M8.0 took place in Sichuan Province, killing 69,195people, with 18,392 missing. Many eye witnesses said they saw lightning flashed across the sky which was followed by a deafening roar just before the shaking began.
18What caused the city of Loulan to disappear ? It was gradually covered over by sandstorms from AD 200 to AD 500.Was the destruction of Loulan caused by man or by nature?Remains of loulanCan you think of other problems caused by man that damage the environment?
19? problems Air pollution Warming upAir pollutionproblems?Air pollution causes more than 2.7 million deaths in the world every day
20Air pollutionEffectsCausesSolutionsMake people get sick or even die. Make the environment dirty.Cause acid rain(酸雨).Factories, power stations, cars, air conditioners give off waste gas. Burn coal and oil.The harmful smoke should be made harmless before it goes into the air. Ride bikes more. Limit the number of cars./Make cars that don’t pollute the air.
23Desertification Deforestation Effects Cause bad weather (sandstorm). CausesSolutionsCause bad weather (sandstorm).Lands or mountains turn into desert. Cause starvation.Cut too much wood. Rich surface soil will be blown away by wind or washed by rain down into rivers.Use less wood . Plant more new trees. Try to make desert areas become green land.
24? problems Water pollution Warming upIt is estimated that over 1 billion people—about one fifth of the world’s population --don’t have enough safe drinking water.Water pollutionproblems?
25Water pollution Effects CausesSolutionsMany people don’t have enough clean drinking water. Make people get sick.Factories pour waste into rivers/lakes/seas. People throw rubbish into rivers/lakes.Use new technology and make stricter laws to make sure that factories are green and clean. Clean the water in the rivers/lakes. Save water in our daily life.
27Make the environment ugly, dirty and even dangerous. Cause diseases. Rubbish/waste pollutionEffectsCausesSolutionsMake the environment ugly, dirty and even dangerous. Cause diseases.Throw rubbish in the streets or in nature. Buy products that use too much packaging.Throw waste in rubbish bins.Buy products that use less packaging. Recycle as much as possible.
28? problems Desertification Air pollution Water pollution rubbish Warming upAir pollutionWater pollutionproblemsrubbish?DesertificationDeforestation
33What can we do? Pass laws Plant trees Control sand April 22nd Earth dayPlant treesControl sand
34You can use the outline to help you with your oral report. The environment is of great importance to us. We should try our best to protect the environment. Firstly, we should …… . What’s more, …… . Last but not least, our government should …… . I believe with our efforts, the environment will be more and more healthy for our survival.
35Homework Write down what you will do to protect our environment. Exchange your ideas with your classmates.