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1、Unit 2 Saving the Earth Unit 2 Saving the Earth Topic 1Topic 1Pollution causes too many problems. Pollution causes too many problems. Section ASection A （录音）（录音）A: Where have you been/traveled?B: I have been/traveled to . Kangkang and his friends are planning a picnic.Can you guess where they will g
2、o?They will go to They will go to a beautiful place with .Would you like to have a picnic in such places?Do you know this place?Its Lop Nur (罗布泊).Do you know this place?Its Lop Nur (罗布泊).It used to be a beautiful place with过去是过去是Pollution really causes too many problems. too many + 可数名词复数 too much +
3、 不可数名词 much too + adj./adv. We must protect our earth now.What can you see in the picture?Can you see bees and butterflies dancing?Is the West Hill a beautiful place now?What has happened here?The flowers and grass have gone!There are several chemical factories pouring waste water into the stream.Is
4、 the West Hill a beautiful place now?There are several chemical factories pouring waste water into the stream.several = a few There be + sth./ sb. + doing sth. There are many students reading books in the classroom.Listen to Part 1a, answer the questions.What did Kangkang say about the West Hill in
5、the past?Kangkang said that it was a beautiful place with flowers and grass.What did Kangkang say about the West Hill at present?Kangkang said that the flowers and grass had gone.Kangkang: Its a beautiful place with lots of flowers and grass.Kangkang: The flowers and grass have gone! 影片影片直接引语变成间接引语，
6、句子结构的变化 He said, “I have been to the Great Wall. ” He said to us that he had been to the Great Wall. He said, “Ill give you an examination next Monday. ” He told us that he would give us an examination the next Monday. 陈述句 用连词that引导，that在口语中常省略。主句的谓语 动词可直接用引语中的said, 也可用told来代替，注 意:可以说said that, said
7、 to sb. that, told sb. that.不可直接说told that。 解题步骤: 陈述句:“I dont like computers,” Sarah said to her friends.Sarah said to her friends that I dont likecomputers.saiddidntsheSarah said to her friends that she didnt like computers.Sarah1bWork aloneIn the pastAt presentReasonKangkang said that it was a bea
8、utiful place with lots of flowers and grass. .Kangkang said that the flowers and grass had gone. .Maria said .In the pastAt presentReasonKangkang said that it was a beautiful place with lots of flowers and grass. Kangkang said that the air was fresh and the water was clean, and that they would see b
9、ees and butterflies dancing.Kangkang said that the flowers and grass had gone. Kangkang said that the water was so dirty. Kang said that it smelled terrible.Maria said that there were several chemical factories pouring waste water into the stream.2. Work aloneIt is generally believed that pollution
10、does great harm to animals. Listen and number the pictures.6 64 43 32 21 1 5 5（录音）（录音）a. air pollutionb. soil pollutionc. water pollutiond. light pollutione. noise pollutionf. litter3aWork alone1234563b Complete the following sentences with the word and phrases in 3a.1. People use chemicals too much
11、 in their fields, so_ causes unhealthy food. 2. People pour waste water into rivers and lakes, so_ is almost everywhere in China. 3. _makes people sick. It causes breathing problems and even cancer. 4. In some cities theres too much _ caused by many cars. The government has done something useful to
12、stop it. 5. _is harmful to eyes. 6. _influences our environment, so people shouldnt throw it around.3b Complete the following sentences with the word and phrases in 3a.1. People use chemicals too much in their fields, so_ causes unhealthy food. 2. People pour waste water into rivers and lakes, so_ i
13、s almost everywhere in China. 3. _makes people sick. It causes breathing problems and even cancer. 4. In some cities theres too much _ caused by many cars. The government has done something useful to stop it. 5. _is harmful to eyes. 6. _influences our environment, so people shouldnt throw it around.
14、soil pollution water pollutionAir pollution noise pollution Light pollution Litter根据句意及首字母完成下列各句。1. I have b_ to the West Hill before.1. I have b_ to the West Hill before. 2. All the flowers, grass and fish have 2. All the flowers, grass and fish have g_.g_. 3. There are s_ chemical factories 3. The
15、re are s_ chemical factories pouring waste water into the river.pouring waste water into the river. 4. We call a small narrow river a s_.4. We call a small narrow river a s_. 5. Using chemicals too much in the fields may 5. Using chemicals too much in the fields may cause s_ pollution.cause s_ pollution.een one everaltream oilWhat kind of pollution can you find What kind of pollution can you find around us?around us?What problems does the pollution What problems does the pollution cause?cause?Please ta
