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1、The Environment,Unit 3,Reading,Warming up,What do the pictures tell us? Have a discussion: What will happen to the earth if we keep polluting it? How can we reduce pollution?,Our earth is in danger!,A1 What do you know about the greenhouse effect? Match the first half of the sentences in column A wi
2、th the second half in column B. Write the correct letters in the blanks.,There is an atmosphere. It controls However, we are polluting The gases cause the atmosphere The Earth is getting We call this,A the greenhouse effect B the Earth with harmful gases C warmer and warmer D to keep in too much hea
3、t from the Sun E around the Earth F the Earths temperature,A,B,The greenhouse effect 温室效应,What can we do?,Finish a test,How green are you?,1. Do you recycle A: newspapers? 1 B: tins? 1 C: plastic bags? 2 2. When you make a short journey, do you A: walk or cycle? 3 B: go by car? 0 C: go by public tra
4、nsport? 1,3. What type of bags do you use for shopping? A: reusable ( e.g., basket ) 3 B: reused plastic 1 C: new plastic 0 4. How many pieces of electrical equipment are used in your kitchen? A: 10 or more 0 B: 5 to 9 1 C: below 5 2,5. Do you make sure that lights and other electrical equipment are
5、 switched off when not needed? A: nearly always 2 B: seldom 1 C: never 0 6. Do you use disposable chopsticks? A: often 0 B: seldom 1 C: never 2,7. Do you use paper tissues? A: often 0 B: seldom 1 C: never 2 8. Do you usually take? A: a bath 0 B: a shower 1,Who is the,greenest,in your class?,Look at
6、the pictures, the title, the introduction and the sub-headings of the article on page35. Then answer the qustions below.,Before you read,The world is in danger,The main problems we face.,The greenhouse effect, cutting down forests and bad habits.,A green consumer is someone who only buys products fr
7、iendly to the environment.,1. What is the article mainly about?,2. What problems does the article discuss?,3. A consumer is someone who buys and uses things. Can you guess what a green consumer is?,Reading,Reading Tips,在阅读每个段落时，要注意 综合运用略读(skimming) 与扫读(scanning)这两种方法。,略读(skimming)只看文章标题、下标题以及每个部分或者段
8、落第一行, 关注文章中反复出现的关键词。 略读时, 要用充足的时间读懂段落的第一句和第二句, 因为第一句往往是该段的主题句(topic sentence), 而第二句往往是对前句的延伸(extension)或进一步的解释(explanation)。,通过略读把握文章大意,Now, skimming to get main ideas.,Read the first paragraph and find out the main idea.,Our world is in danger.,Read the second paragraph and find out the main idea.,
9、The atmosphere around Earth is important to all living things.,Read the third paragraph and find out the main idea.,Cutting down trees cause many problems.,Read the third paragraph and find out the main idea.,Bad habits cause pollution. Rubbish should be thrown away in right way or we should use rec
10、ycling things.,Read the last paragraph and find out the main idea.,Be green consumers and try to buy and use products friendly to the environment.,The writer says that it is in danger. 2. It is necessary for all living things. 3. CO2 comes from burning them. 4. This causes sea level to rise. 5. It c
11、auses the surface of the soil to be easily destroyed by rain. 6. Many of our habits cause this.,the world,The atmosphere,fuels,The increasing temperature,Cutting down trees,pollution,D2 Read the article again and circle the correct answers.,1.Because of pollution, _. not enough sunlight is reaching
12、Earth too much heat is leaving the Earth not enough CO2 is leaving the Earth 2. If there are more trees, the amount of CO2 in the atmosphere will be _. greater less c. the same,3. We can help protect the environment if we_. change our bad habits become consumers buy more products 4. The purpose of t
13、he article is to make _. people do more to protect the environment more people become consumers c. People learn more about the environment,Language points,1. 原句再现： It is like the glass of a greenhouse.它像温室的玻璃。,be like= look like 像；什么样子,如： 你妈妈长什么样子？ -What is your mother like?=What does your mother lo
14、ok like? -My mother is a tall woman with short hair.,like prep.像,50年后的世界会是什么样子？ -What will the world be/look like in 50 years? Our life will be more wonderful.,2. 原句再现： This causes sea level to rise, and in the future may cause cities to disappear.这使得海平面上升，在未来会使得城市消失。,如： 什么使得你犯了那个愚蠢的错误？ -What causes
15、 you to make the silly mistake?,cause sb to do sth使某人做某事,3. 原句再现： Cutting down trees also destroys the homes of the animals that live in our forests, and causes the surface of the soil to be easily destroyed by rain.,如： 做运动对我们的身体健康很重要。 exercise is important to our health. (do),Cutting down treesdestroys and causes为V-ing作主语，谓语动词用单数。,Doing,4. 原句再现： People often use things once and then throw them away, or leave them on the ground as litter.人们经常会把用了一次的东西扔掉，或者当
