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1、Unit2 SavingtheEarth,Topic 1 Pollution has caused too many problems. Section A 课件 1,A: Where have you been/traveled?,B: I have been/traveled to .,Have you ever had a picnic?,Kangkang, Jane, Maria and Michael are planning a picnic for Sunday. They will go to the West Hill.,What can you see there?,We
2、can see bees and butterflies dancing.,bee,butterfly,Is the West Hill beautiful?,Guess,We can see,What can you see in the Picture 1?,Step 1 Questions and answers,The flowers and grass have gone!,Oh, my goodness. What a mess!,Look! There are several chemical factories pouring waste water into the stre
3、am.,= have disappeared.,Is it beautiful now? What has happened there?,倒出；倾泻 pour into 把倒入 e.g. Pour red wine into the glass.,1b Listen to 1a and mark the words with P (Past) or N (Now). _ beautiful _ butterflies _ dirty _ grass _ terrible _ factory _ bees _ fresh _ clean _waste water,P,P,N,P,N,N,P,P
4、,P,N,1c Read 1a and complete the sentences in the table. Then retell 1a to your partner.,beautiful place,lots of flowers and grass,fresh and the water was clean,bees and butterflies dancing,The flowers and grass,so dirty,terrible,chemical factories,waste water,Everything,2 Work in pairs. Look at the
5、 pictures and make up conversations similar to the example with your partner.,Example: A: There were lots of flowers and grass when I visited the village last year. B: But now the flowers and grass have gone. A: What has happened here? B: The villagers have destroyed them.,lake/fish factory/ pollute
6、,hill/ trees farmers/cut down,village/flowers and grass villagers/destroy,4 Work in groups and talk about pollution in a place you are familiar with. The following sentences may help you. ago, it was Now, have/ has gone. What has happened? Everything has changed. Oh, my goodness!,3 A. Listen to the
7、sentences and number the pictures.,5,3,2,1,4,6,1. People _ _ _ too many trees, so I dont have enough leaves to eat.,have cut down,B. Listen again and complete the sentences.,2. I live in trees but now many trees _ _.,have gone,3. I like leaves and grass, but now they _ _.,have disappeared,4. I _ _ h
8、ungry for months because of less bamboo.,have been,5. Human polluted the sea, so I _ _ _.,dont live happily,6. The water _ _ many years ago. But it _ _ _ for me to live in now.,was clean,is too dirty,Exercises,1. Smoking is harmful _ ones health. A. in B. at C. on D. to,D,2. Its only _ of time to sp
9、eak to her. A. a waste B. waste C. to waste D. wasted,A,3. There are 30 students _ in this class. A. read B. reading C. read D. reads,B,4. I feel it is our duty not _ our environment. A. pollute B. polluted C. pollution D. to pollute,D,5. They _ London on Friday. A. reached B. got C. arrived D. arri
10、ved to,A,Summary,1. Some words: bee, butterfly, mess, shame, several, pour, waste, destroy, pollute, goodness 2. Some phrases: see sb. doing sth. pourinto 3. Some sentences: There aredoing,We learn:,1. Express exclamation: What a mess! What a shame! Oh, my goodness! 2. Know the differences between Simple Past and Present perfect. It was a beautiful place. Everything has changed.,We can:,Thank you！,
