初中英语新人教版八年级下册Unit 4 The Wonders of Nature第7课时教学课件（2026春）

这是一份初中英语新人教版八年级下册Unit 4 The Wonders of Nature第7课时教学课件（2026春），共25页。
Unit 4The Wonders of Nature第7课时（Project & Reading Plus）R·八年级下册What natural wonders are they?the Great Barrier Reef Mount Qomolangmathe Mariana Trenchthe Sahara Desertthe Yangtze River the Yellow RiverWhat special facts do you know about these natural wonders? Choose one and share with us.the Great Barrier Reef Mount Qomolangmathe Mariana Trenchthe Sahara Desertthe Yangtze River the Yellow RiverWork in a group. Choose a natural wonder (a river, lake, mountain, forest, waterfall, etc.). Then do some research and make notes.小组合作。选择一处自然奇观（河流、湖泊、山脉、森林、瀑布等）。然后进行调研并做笔记。Design a poster about a natural wonderMake a poster about the natural wonder you chose. Refer to the example on the right.Read and answer the questions.the world’s biggest rainforest6 million square kilometres in sizein Brazil, Peru, Colombia, and five other countriescalled “the lungs of the earth”the largest variety of plants and animals in the world巴西，秘鲁，哥伦比亚肺种类a variety of 各种各样的What’s the natural wonder?What size is it?What’s its location(位置)?Amazon Rainforest.In Brazil, Peru, Colombia, and five other countries.It’s 6 million square kilometres in size.Read and answer the questions.What special facts do you know about it?Read and answer the questions.It’s world’s biggest rainforest.It’s called “the lungs of the earth”.It’s the largest variety of plants and animals in the world.Sample poster •the largest waterfall in China•located in Guizhou Province•101 metres wide and 77.8 metres high•roaring（咆哮的）water rushes down every second•people can walk right behind the waterfall through a natural caveHuangguoshu WaterfallAs a group, give a report to the class. Pay attention to the use of large numbers, comparatives, andsuperlatives.The Amazon Rainforest is theworld’s biggest rainforest.It covers 6 million squarekilometres. You can see most ofit in three countries, Brazil, Peru,and Colombia …Sample Good morning, class! Today we’d like to introduce you to Huangguoshu Waterfall—the largest waterfall in China.Located in Guizhou Province, Huangguoshu Waterfall is 101 metres wide and 77.8 metres high. The main waterfall alone is much wider than many small waterfalls nearby! Every second, roaring water rushes down—it’s like a huge white curtain falling from the sky. What makes Huangguoshu Waterfall even more special is that you can walk right behind the waterfall through a natural cave. This gives travellers a much more exciting experience than watching from a distance. Huangguoshu Waterfall attracts millions of curious travellers each year.If you want to experience the greatest power of nature, Huangguoshu Waterfall is the best place to visit! Thank you for listening!the Sahara DesertWhat do you know about the Sahara Desert?Read the text and complete the mind map.at least 4.6 millionyears oldmost places are rocky; some have grass, lakes，mountains and even sand seasin Africaabout 10 per cent larger than what it was about a century agodifficultabout 9 million squarekilometresDiscuss the questions. 1. How is life in the desert different from other places where people live?Life in the desert is much harder. First of all, it is hard to find water, and people usually move from place to place. What’s more, the weather in the desert is very dry and hot. In other places, people usually have stable homes and enough water. The weather is better than that in the desert.2. Would you like to visit the Sahara Desert or even live there for a while? Why or Why not?I would like to visit the Sahara Desert. Because I want to see its amazing landscapes, like sand seas and the rocky ground./I don’t want to live there. Because it’s too hot and difficult to find water.3. What do you think will happen if the Sahara keeps getting bigger? What should we do about it?If the Sahara keeps getting bigger, I think more land will dry up, and people and animals there may lose their homes. We should take effective measures, such as reducing pollution, planting more trees, and saving water.（答案不唯一，仅供参考）Located in Africa, the Sahara Desert spreads across 30 per cent of the continent. This vast desert, also known as “the great desert” in Arabic, is about 9 million square kilometres in size. It is also at least 4.6 million years old. This means that it is one of the oldest places in the world.The Sahara DesertRead and learn横跨；遍布大陆；陆地；洲辽阔的；巨大的阿拉伯语在尺寸上；在大小方面至少All deserts are dry, and the Sahara is both dry and hot. It is the largest hot desert in the world. We may think that all deserts are hot, but in fact some deserts are very cold! Many scientists believe that Antarctica, for example, is a type of cold desert.一种Most of the Sahara is rocky ground. But there are also places with grass, lakes, mountains, and even sand seas. 岩石的；多岩石的A sand sea is just what it sounds like—it looks like a sea of sand! When the wind blows, the sand looks like waves. Life in the Sahara is difficult. About two million people live in the Sahara. They usually move from place to place. There is water in a few parts of the Sahara, and some people live in these places all year round.what引导的表语从句，说明沙海是什么样的到处；从一个地方到另一个地方全年不定式作目的状语，说明大耳朵的作用Not many animals can live in a place with such a dry and hot climate. They must adapt to survive. Camels, for example, go for a long time without drinking water. When they do find water, they can drink more than 100 litres of it in 13 minutes! Fennec foxes live in the desert too. They have large ears to help their bodies stay cool.适应（新情况）adapt to 适应某物骆驼此处的do是强调助动词，当句中无其他助动词时，用于加强语气。升耳廓狐Today, the world’s largest hot desert is getting even bigger. It is now about 10 per cent larger than what it was about a century ago. But why is it growing? Some scientists believe that part of the reason is climate change. As temperatures rise, summers in Africa grow hotter and less rain falls. Water bodies get smaller and the ground gets drier and drier. If we do not take effective measures, the desert will keep growing!百年；世纪水体比较级+and+比较级 越来越……采取有效的措施1. What new facts about natural wonders have you learnt?2. Can you make comparisons when talking about natural wonders?3.Can you use large numbers to give some geography facts?4.Can you explain how and why people connect with nature?5. What are some achievements that people have made while exploring nature?Nature makes us wonder. That is why it is wonderful.1. Review the words and phrases in this unit.2. Polish your poster and write an article to introduce the natural wonder you’re interested in.