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 with
2、the second half in column B. Write the correct letters in the blanks.,There is an atmosphere.It controlsHowever, we are pollutingThe gases cause the atmosphereThe Earth is gettingWe call this,A the greenhouse effect B the Earth with harmful gases C warmer and warmer D to keep in too much heat from t
3、he 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 recycleA: newspapers? 1B: tins? 1C: plastic bags? 2 2. When you make a short journey, do youA: walk or cycle? 3B: go by car? 0C: go by public transport? 1,3. W
4、hat type of bags do you use for shopping?A: reusable ( e.g., basket ) 3B: reused plastic 1C: 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 switched off whe
5、n not needed?A: nearly always 2B: seldom 1C: never 0 6. Do you use disposable chopsticks?A: often 0B: seldom 1C: never 2,7. Do you use paper tissues?A: often 0B: seldom 1C: never 2 8. Do you usually take?A: a bath 0B: a shower 1,Who is the,greenest,in your class?,Look at the pictures, the title, the
6、 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 friendly to the environment.,1
7、. 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落第一行, 关注文章中反复出现的关键词。略读时, 要用充
8、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.,The atmosphere around Earth i
9、s 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 recycling things.,Read the last
10、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 causes the surface of the soil to
11、 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 Earth too much heat is leaving th
12、e Earthnot 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 habitsbecome consumersbuy more products 4. The purpose of the article is to make _.people do more
13、 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 look like? -My mother is a tall woman wit
14、h 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 you to make the silly mistake?,cause s
15、b 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,
16、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，或者当垃圾丢弃在地上。,throw them/it away pick them/ it up,throw them away 中的them为代词，代替前面的things,不可以说throw away them,pick up them/ it,leave 意为遗留；落下,x,5. 原句再现： We should also recycle as many thi
17、ngs as we can. 我们也应该尽我们所能地多重复利用东西。,如： 我们应该尽可能多的帮妈妈做家务。 We should do we to help our mother. = We should do to help our mother.,asas sb can=asas possible尽可能。的,as much homework as can,as much homework as possible,Phrases,1. 在危险中 2.保护环境 3.温室效应 4.生物 5.像。 6.阻止发生 7. 和一样 8.引起。 9.太多热量,be in danger protect th
18、e environment greenhouse effect living things be like keep/stopfrom doing sth the same as cause sb to do sth too much heat,10.由于 11. 砍伐 12.破坏自然 13. 使。更差 14.吸收二氧化碳 14.产生氧气 15.造成；导致 16.引起污染 17.扔掉,cut down destroy nature make sth. Worse take in= absorb CO2 produce oxygen result in cause pollution throw
19、 away,as a result of =because of,18. 大量的 19.为了 20. 保护环境 21.采取行动 22. 和。不同 23. 有利于环境的产品 24. 尽我们可能多的 25. 有作用；有影响,mountains of=lots ofin order to protect the environment take action be different from products friendly to the environment as many things as we canmake a difference,Discussion,The writer gives an example of a bad habit that causes pollution. Can you name some other bad habits that cause pollution?,Thank you.,
