Unit 4 The Wonders of Nature Section A 1a - 1d 课件 2025-2026学年人教版八年级英语下册

The Wonders of Nature(Period 1) Section A (1a-1d) 八年级下册英语 In this unit, you will 1. talk about geography facts about natural wonders. 2. compare facts about famous places. 3. share geography facts using large numbers. 4. explore how and why people connect with nature. ·Do you know the name of the waterfall in the photo? Look and share It’s Victoria Falls. ·What do you think is special about it? It is one of the largest waterfalls in the world. The water sounds like thunder and makes “smoke” (spray). You can see a rainbow in the mist. 1a Free talk • What other natural wonders do you know? Mount Qomolangma Free talk • What other natural wonders do you know? Nile River Free talk • What other natural wonders do you know? Angel Falls Free talk • What other natural wonders do you know? Sahara Desert have a general understanding of how to describe places using measurements and superlative forms. be able to talk about the features and measurements of the natural wonders you have learnt about. listen for specific details about natural wonders in the conversation. In this part, you will 1b Match the places with the pictures. ___ Nile River ___ Angel Falls ___ Mount Qomolangma ___ Dead Sea ___ Sahara Desert ___ Mariana Trench P32 A B C D E F Listen to a game show and circle the places mentioned . What do you know about these places? Can you describe them? 8,850 5,000 6,300 1,025 8844.43 5,464 6,671 9,600,000 300 接龙 幻灯片上数字出现时，同学应迅速读出。 每人一个，按行/列依次接龙，5秒内说不出，此行/列同学即失去此答题机会，下一行/列同学接续。 1. 长、宽、高、深、面积的表达方法 The river is 20 meters wide. = The river is 20 meters in width. 基数词 + 单位词 + 形容词（long, wide, high, deep等） 基数词 + 单位词 + in + 名词（length, width, height, depth, size等） 【拓展延伸】作定语时用合成词“数词 - 单位词单数 – 形容词”。 This 20-meter-long rope isn’t long enough to help climb the mountain. 1: 1—12: (记住每个单词) 2: 13—19: -teen (thir-, fif-, eigh-) 3: 20—90: -ty (twen-, thir-, for-, fif-, eigh-) 4: 21—99: 十位 _ 个位 5: 100, 200, ... 900: _______ hundred 6: 101—999: _______ hundred and __ 个位 十位 __ _ 个位 小结: 7: 多位数: ______ billion (十亿), ______ million (百万), _____ thousand, ______ hundred and 个位 十位 __ _ 个位 _ Listen to the game show. Complete the descriptions of the places. Place Description Mount Qomolangma the ________in the world Sahara Desert the ________in the world Dead Sea the ________on earth Mariana Trench the ________in the ocean 听力技巧：听主旨，抓描述性最高级词汇（highest, largest...） highest mountain biggest desert lowest place deepest point 1c Listen to the game show. Complete the descriptions of the places. Place Description Mount Qomolangma the ________in the world Sahara Desert the ________in the world Dead Sea the ________on earth Mariana Trench the ________in the ocean highest mountain biggest desert lowest place deepest point Read the questions and think of more you would like to ask the deep-sea researcher. Research the answers. Then ask and answer the questions with a partner. What is the largest shark in the deep sea? What is the bottom of the deep sea like? Why is it important to research the deep sea? What is the largest animal living in the deep sea? What is the coldest temperature in the deep sea? What do you think is the hardest problem in exploring the deep ocean? 1d Try to read the following numbers. 英语数字的读法 416 8,848.86 11,000 9,000,000 英语中，数字从后往前数，每三位标一个逗号。 例： 9,000,000 百位和十位中间加and 小数点读作point, 小数点后的数字逐个单独读出。 thousand million Listen again. Complete the measurements. Place Measurement Mount Qomolangma ________metres high Sahara Desert about ________square kilometres in size Dead Sea ________metres below sea level Mariana Trench about________metres deep 听力技巧：精听，边听边记录关键数据。 8,848.86 9,000,000 416 11,000 The new sleeper trains between Hong Kong and Beijing may not be ________, but they’re the most comfortable. A. slower B. the fastest C. the slowest D. faster 2 The Sahara is the largest ________ in the world, covering a huge area of North Africa. A. forest B. mountain C. desert D. ocean 3 The Grand Canyon is one of the greatest natural ________ in America. A. cities B. buildings C. wonders D. capitals 1 Multiple choice. Listen again. Complete the measurements. Place Measurement Mount Qomolangma ________metres high Sahara Desert about ________square kilometres in size Dead Sea ________metres below sea level Mariana Trench about________metres deep 听力技巧：精听，边听边记录关键数据。 8,848.86 9,000,000 416 11,000 Post-listening Discuss in groups. “首航规划”任务 如果要选择两个natural wonders 进行首次探险，在组内讨论，必须运用所学句型和数据说明选择理由（如：We choose... because it’s the ... in the world. It’s ... meters high/deep.),并尝试补充新信息或感受。 恭喜你成为 Global Explorer! 1. He jumped the ________ (far) among all the students in the sports meeting. 2. Our school is about 200 square ___________ (kilometre). 3. The long river ________ (travel) through many cities and finally flows into the sea. 4. There are __________ (hundred) of students in the hall waiting for the performance. 5. Our school library is the ________ (large) one in the district, with a lot of different kinds of books. 6. The Mariana Trench is the __________ (deep) point in the ocean. 7. Nobody worked out the maths problem. It was _______________ (difficult) one of all. farthest 用单词的适当形式填空。 kilometres travels the most difficult hundreds largest deepest Pair work. Talk about the places you have learnt about. For example: A: What’s the highest mountain in the world? B: It’s Mount Qomolangma. A: How high is it? B: It’s 8,848.86 metres high. 1. Memorize the new words and phrases. 2. Practice the conversations with your partner using the sentence patterns we have learned . 3. Finish the exercises. Homework Thanks! null 110422.555 null 97647.43 $