Unit4The Earth（Focusing on culture）课件2025-2026学年沪教版英语七年级上册

该初中英语课件以塞罕坝沙漠变绿洲为核心案例，围绕环境治理词汇、文本梳理及环保思考展开。课堂从"Let's talk"环保行动讨论切入，通过"沙漠变森林"的想象提问与图片地理位置探究，搭建从已知环保行为到具体案例的学习支架。 其亮点在于融合文化意识与思维品质，以塞罕坝生态文明案例培育家国情怀，通过时间线梳理、段落主旨匹配等活动训练分析逻辑思维，结合阅读填空、情境讨论提升语言能力。多样任务型活动与关键词汇练习便于总结，学生能提升语言能力与环保意识，教师可直接利用结构化资料高效教学。

沪教版七年级上册 Unit 4 掌握关键词汇，如generation,disappear,cut down,blow away, sandstorm等。 掌握文本内容，梳理塞罕坝是如何从沙漠变成绿洲的，了 解塞罕坝改造过程中遇到的困难和最终的成果。 重 点 通过塞罕坝成功治理环境问题的案例，思考人类该如何保 护地球。 Learning Objectives Let's talk What can we do to protect the Earth? We shouldn't put waste We should plant more into rivers and seas. trees and turn deserts into green land. We shouldn't litter, we need to sort our rubbish. Can you imagine a desert can turn into a forest? Let's talk ·Do you know where Saihanba is? It's in Hebei province. ·What do you know about it? Look and say There is a picture of Saihanba. Saihanba,from a tree to a million mu of forest,from desert to oasis(绿洲),is a miracle created by the Chinese people.Since 1961, after half a century of hard work,Saihanba has been built into a famous man-made forest area,attracting many tourists to come for sightseeing,and has become an important window to show China's Look and say ecological civilization(生态文明). Saihanba is a forest park in the north of Hebei.It 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 5 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.In 1962,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, 20 and there are fewer sandstorms in the Beijing area now. The passage is mainly about how people turn Saihanba from a desert into a forest Read and predict Saihanba:turning desert into forest Saihanba:turning desert into forest Saihanba is a forest park in the north of Hebei.It 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 5 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 stillplant trees here,"they thought.In 101962,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 15 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, 20 and there are fewer sandstorms in the Beijing area now. What is the TEXT TYPE of this passage? C A.Argumentation(议论文) B.Narration(记叙文) C.Exposition(说明文) Read and choose Saihanba:turning desert into forest Saihanba is a forest park in the north of Hebei.It 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 stillplant trees here,"they thought.In 1962,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. Read through the passage quickly and match each paragraph with its main Actions and challenges History and problems Efforts and achievements idea.Para.1 Para.2 Para.3 Read and fill Scan the text and fill in the missing information.Pay attention to the time and events. in the 1800s in 1962 noW slowly turned the first tree it is green again into a desert planters arrived the world's biggest man- to work hard three generations scientists tried solution in the early 1960s emperors hunted there For hundreds of years made forest find a 1.How did Saihanba become a desert? There were forest fires and wars,and people cut down many trees. Saihanba slowly turned into a desert. 2.Why was it difficult to turn the desert into a forest? The cold and dry weather made their work very difficult and strong winds blew away many young trees. 3.How does the forest improve the environment in the Beijing area? The forest helps provide the capital with clean water,and there are fewer sandstorms in the Beijing area now. Read and answer In 2007,the government listed Saihanba as one of the most important national nature reserves in China.In 2017,the Saihanba Afforestation Community received the Champions of the Earth award from the UN Environment Programme. Read and learn Notes Discuss and share ▶ Q1:Why are forests important? Forests are very important because they provide us with clean air and water.They help to clean the air by taking in carbon dioxide and giving out oxygen.Also,forests are home to many animals and plants,so they help to keep our planet diverse and beautiful. Without forests,many species would disappear,and our world would be less colorful. Discuss and share ▶Q2:What can we do to protect them? To protect forests,we can start by planting more trees.Planting trees helps to replace those that have been cut down.Also,we should avoid using products made from trees unless they come from places that grow new trees after cutting old ones.We can also recycle paper and reduce waste to help save trees.By doing these things,we can help keep our forests healthy and full of life. Read and complete Complete the sentences with the words and the phrases below. blow away generation hunt sandstorm solution (1)The family lived in the village for five generations before they moved to Beijing. (2)This is a difficult problem,but I am sure we can find a solution. (3)The strong wind blew away her hat,and it landed in the lake. (4) Sandstorms are very common in the Sahara Desert. (5)Killer whales usually hunt seals and sea lions for food. Homework 01 Listen to and read the passage in Page 62 for three times. Have you been to Saihanba?Find out more about the place online. $