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课件网) Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems. Section A 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. Oh, my goodness. What a mess! There were several chemical factories pouring waste water into the stream. Was it beautiful in the past What happened there What can you see there We can see bees and butterflies dancing. bee butterfly Is the West Hill beautiful now a place with beautiful flowers many hills green trees waste water waste paper Waste water. 浪费水。 Don’t waste paper. 不要浪费纸。 waste adj. v. There were several chemical factories pouring waste water into the stream.有几家化工厂正在往小溪里排放废水。 There be…doing sth… ……有……在做某事 e.g. There are some people waiting for the bus at the bus stop. 倒出；倾泻 pour… into… 把……倒入…… e.g. Pour red wine into the glass. 1b Read 1a and mark the words with P (Past) or N (Now). ____ beautiful ____ butterflies ____ grass ____ factory ____ bees ____ fresh ____ clean ____waste water P N N P N N N N 1a View, look and say. 1c Read 1a and complete the sentences in the table. Then retell 1a to your partner. Two years ago Now 1. It was a _____. 2. There were several _____ pouring _____ into the stream. 1. The air is _____and the water is _____. 2. You can see _____ dancing. 3. _____has changed. mess fresh clean bees and butterflies chemical factories waste water Everything 2 Work in pairs. Look at the pictures and make up conversations similar to the example with your partner. Example: A: The villagers destroyed the flowers and grass when I visited the village last year. B: But now the flowers and grass have come back. A: What has happened here B: The villagers have learned that they were wrong. And they have done a lot to make the village a better place. lake/fish factory/ pollute 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. Oh, my goodness! …ago, it was… Now, … have/has come back. What has happened Everything has changed. 3 A. Read the sentences and number the pictures. 5 3 2 1 4 6 1. People _____ _____ _____ trees. Now I have enough leaves to eat. 2. I live in trees. People have stopped _____ _____ trees. So I have more family members. 3. Leaves and grass _____ many years ago. But now they have come back. I can have enough food. 4. I have found more bamboo on the mountain. I don’t have to _____ _____ _____ any more. 5. In recent years, I _____ _____ _____ _____ to make the sea clean again. 6. I couldn’t live in the river because it _____ _____ _____ for me to live in. Now it has become clean again, so I am safe. B. Read again and complete the sentences. have planted more cutting down disappeared worry about foo ... ...
