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1、Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems.Section AA: 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 can see be
2、es and butterflies dancing.beebutterfly Is the West Hill beautiful? a place withbeautiful flowersmany hillsgreen treesWhat a shame/mess! The flowers and grass have gone!The flowers and grass have gone! Oh, my goodness. What a mess!Look! There are several chemical factories pouring waste water into t
3、he stream.= have disappeared.Is it beautiful now?What has happened there?P27 1a mp3waste waterwaste paperWaste water. 浪费水。浪费水。Dont waste paper. 不要浪费纸。不要浪费纸。wasteadj.v.There are several chemical factories pouring waste water into the stream.有几家化工厂正在往小溪里排有几家化工厂正在往小溪里排放废水。放废水。 There bedoing sth 有有在做某事在
4、做某事e.g. There are some people waiting for the bus at the bus stop. 倒出；倾泻倒出；倾泻pour into 把把倒入倒入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 waterPPNPNNPPPN1a Li
5、sten, look and say.1c Read 1a and complete the sentences in the table. Then retell 1a to your partner.Two years agoNow1. It was a _.2. There were _.3. The air was _ and you could see _.1. _ have gone.2. The water is _and smells _.3. There are several _ pouring _ into the stream.4. _has changed.beaut
6、iful placelots of flowers and grassfresh and the water was cleanbees and butterflies dancingThe flowers and grassso dirtyterriblechemical factorieswaste waterEverything2 Work in pairs. Look at the pictures and make up conversations similar to the example with your partner.Example:A: There were lots
7、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/fishfactory/pollutehill/ treesfarmers/cut downvillage/flowers and grassvillagers/destroy4 Work in groups and talk about pollution i
8、n 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 sentences and number the pictures.5 53 32 21 14 46 61. People _ _ _ too many trees, so I dont have enough leaves to ea
9、t.2. I live in trees but now many trees _ _.3. I like leaves and grass, but now they _ _. 4. I _ _ hungry for months because of less bamboo.5. Human polluted the sea, so I _ _ _.6. The water _ _ many years ago. But it _ _ _ for me to live in now. B. Listen again and complete the sentences.have cut d
10、ownhave gone have disappearedhave beendont live happilywas cleanis too dirty单项选择单项选择( ) 1. Look! There are some boys _ on the playground. A. play football B. are playing football C. playing football D. plays football( ) 2. Im sorry I cant go shopping with you. I am ill. _ A. What a mess! B. What a s
11、hame! C. What a pity! D. B and C( ) 3. Dont _ water. We must save every drop of it. Sorry, I wont do it again. A. waste B. throw C. play D. leaveCDA用所给动词的适当形式填空。用所给动词的适当形式填空。1. When I entered the room, I saw Maria _ (read) a Chinese book.2. What a shame! The flowers and trees in the park _ (go).3. E
12、verything _ (change) in the past few years.4. Pandas dont have enough bamboos _ (eat) now because of the pollution.5. Where have they been? They _ (be) to the Great Wall. They _ (have) a good time there the day before yesterday.readinghave gonehas changedto eathave beenhad1. Express exclamation: Wha
13、t 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.1. Some words: bee, butterfly, mess, shame, several, pour, waste, destroy, pollute, goodness2. Some phrases: see sb. doing sth. pourinto.3. Some sentences: There aredoing Homework1. Read 1a.2. Write a passage according to Part 4.3. Finish Section A in your workbook.4. Preview Section B.Thank you.
