Unit4 Focusing on culture 课件2024-2025学年牛津深圳版英语七年级上册

Unit 4 The Earth Focusing on culture 1 Unit 4 The Earth 主题范畴 主题群 子主题 人与自然 自然生态；环境保护 热爱与敬畏自然，与自然和谐共生；环境污染及原因，环保意识和行为 Why should we learn about the Earth? Key question 2 About the forests Warming-up Focusing & ccc Focusing & ccc 3 4 Before you read P62 Listen to the article, and write down the key words. Saihanba: turning desert into forest Saihanba is a forest park in the north of Hebei. lt is about 400 km from Beijing. For hundreds of years, the emperors went there to hunt. But in the 1800s, things began to change.There were forest fires and wars, and people cut down many trees.Saihanba slowly turned into a desert. When the forest disappeared, there were terrible sandstorms in the Beijing area. In the early 1960s, a group of scientists travelled to Saihanba to find a solution. They found an old tree in the middle of the desert. "Maybe we can still plant trees here," they thought. In1962, the first tree planters arrived in Saihanba.The cold and dry weather made their work very difficult, and strong winds blew away many young trees. In winter, it got as cold as -40℃. Three generations of forest workers continued the hard work.Thanks to them, Saihanba is green again. It is today the world's biggest man-made forest. There are hundreds of millions of trees there. The forest helps provide the capital with clean water, and there are fewer sandstorms in the Beijing area now. 1 2 3 4 5 6 7 8 9 9 10 11 12 14 13 15 6 15 Let's learn something about Saihanba. Reading 6 Task1: Read and match the main idea of each paragraph. Reading Actions and challenges History and problems Efforts and achievements 7 (1) How did Saihanba become a desert? P63 There were forest fires and wars, and people cut down many trees. Saihanba slowly turned into desert. Scanning Task2: Answer the questions on page 63. 8 (2) Why was it difficult to turn the desert into a forest? P63 Because the cold and dry weather made it very difficult, and strong winds blew away many young trees. Scanning Task2: Answer the questions on page 63. 9 (3) How does the forest improve the environment in the Beijing area? P63 The forest helps provide the capital with clean water, and there are fewer sandstorms in the Beijing area now. Scanning Task2: Answer the questions on page 63. 10 (1) The family lived in the village for five __________ before they moved toBeijing. (2) This is a difficult problem,but I am sure we can find a __________. (3) The strong wind __________ her hat, and it landed in the lake (4) __________ are very common in the Sahara Desert. (5) Killer whales usually __________ seals and sea lions for food. Task3: Complete the sentences with the words and the phrases below. Change the form if necessary. blow away generation hunt sandstorm solution generations solution blew away Sandstorms hunt 11 Review the text the world’s biggest man-made forest in the 1800s emperors hunted there slowly turned into a desert for hundreds of years in 1962 today in the early 1960s three generations the first tree planters arrived it is green again scientists tried to find a solution worked hard 1 2 3 4 6 5 time time events Task4: Scan the passage on page 62 and fill in the missing information. Pay attention to the time and events. 12 Let's discuss. Deep-thinking 13 Firstly, they give us clean air to breathe. Secondly, they are home to lots of animals and plants. Thirdly, they help keep the soil in place and stop floods. Fourthly, forests can make the world more beautiful. What’s more, we get wood from forests to build houses and make furniture. Deep-thinking P63 Discuss the questions below. (1) Why are forests important? 14 We can do many things to protect the forests. For example, we should not cut down trees. We can plant new trees. We should save paper to use less wood. We can tell our friends and family not to hurt the forests. We can also join groups that help protect forests. Don’t throw rubbish in the forest. We should follow the rules when we visit the forest. Deep-thinking P63 Discuss the questions below. (2) What can we do to protect them? 15 Learn the language points of the text Text Analysis 16 Phrases 1. 某事的解决办法 2. 数以百计的 3. 把...变成... 4. 在19世纪 5. 在20世纪60年代初 6. 一群 7. 在……的中间 8. 吹走 a solution to sth. hundreds of turn... into... in the 1800s in the early 1960s a group of in the middle of blow away 17 Phrases 9. 多亏；由于 10. 使某人/某物…… 11. 给某人提供某物 12. 到达 13. 砍倒 14. 在20世纪30年代 15. 在21世纪初期 16. 在十九世纪70年代末 thanks to make sb./sth. adj. provide sb. with sth. arrive in/at cut down in the 1930s in the early 2000s in the late 1870s 18 1. 一阵大风吹走了树上的很多树叶。 A strong wind __________ __________ many leaves of the tree. 2. 男孩请求他的父亲把纸变成钱。 The boy asked his father __________ __________ the paper __________ a note. 3. 数百人因为水灾失去家园。 __________ __________people lost their homes __________ __________ the flood. 4. 据我们所知，这个问题没有解决办法。 ____ ____ ____ ____ __________, _______ _______ no solution _______ this problem 5. 对于我们来说，保护地球很重要。 __________ important __________ us __________ __________the Earth. 6. 这位科学家出生在十九世纪70年代末。 The scientist was born __________ __________ _________ ___________. More practice. blew away to turn into Hundreds of As far as we know there is to It’s for to protect in the late 1870s because of 19 Let’s do some exercise. Cross-curricular connection 20 Air surrounds the Earth. All living things on Earth need air to survive. What is air like? Read the poem about air and the text about wind. Then complete the sentences below. Reading 21 Reading Let’s complete the sentences! (1) Air has no ________ and no ________. (2) A kite or a plane ________ to stay in the sky. (3) “We need air to survive” means “air ________ us ________”. (4) The wind moves clouds across the sky, and sometimes these clouds bring in ________. (5) A(n) ___________ can tell us where the wind is blowing from. (6) _________ produce electricity for us. smell taste rides keeps alive rain weathercock Windmills 22 158884.42 115177.305 $$