Unit 4 Period 1 Section A（1a-2d）-【金牌导学案】2025-2026学年八年级下册英语课时作业课件（人教版·新教材）

该初中英语课件围绕“自然奇观”主题，聚焦Unit 4 Section A（1a-2d）核心词汇（如deep, protect）、句型（如“the depth of...”“one of the largest...”）及阅读、对话技能。通过单词适当形式填空、汉译英句子巩固基础，衔接阅读理解（“Eye of the Sahara”）和情景对话（富士山讨论），搭建从词汇到语用的学习支架，帮助学生逐步掌握主题语言知识。 其亮点在于融合语言能力与思维品质培养，通过“Eye of the Sahara”阅读理解训练细节查找、词义猜测（如“remote”）和主旨归纳，提升分析推断能力；情景对话围绕富士山展开，强化口语表达与文化意识。采用“基础-提升-积累”分层设计，重点知识积累（如“be located in”）系统归纳短语，助力学生夯实基础、拓展视野，也为教师提供结构化教学资源，提升课堂效率。

Unit 4 The Wonders of Nature Period 1 Section A（1a-2d） 金牌导学案 1 一、用方框中所给单词的适当形式填空。 deep below protect square research 1. We need to _______ these animals because they are in danger. 2. The Sahara Desert is about 9 million _______ kilometres. 3. The ______ of the Mariana Trench is about 11,000 metres. 4. Many countries are doing ________ on climate change. 5. The temperature is _______ zero today. protect square depth research below Period 1 Section A（1a-2d） 2 二、根据汉语意思完成句子。 1. 这个湖表面很美。 _____ _______ ___ the lake is very beautiful. 2. 2023年，他们潜入深海并进行了探索。 They ______ _____ the deep sea and explored it in 2023. 3. 这个洞穴的底部有很多奇怪的石头。 There are many strange stones ___ ____ _______ ___ the cave. The surface of dived into at the bottom of Period 1 Section A（1a-2d） 3 4. 海洋的深度对我们来说仍然很神秘。 _____ ______ ___ the ocean is still a mystery to us. 5. 这个沙漠是世界上最大的沙漠之一。 This desert is one of ____ _______ _______ in the world. The depth of the largest deserts Period 1 Section A（1a-2d） 4 三、阅读理解。 One of the world's most mysterious natural wonders is located in the middle of the Sahara Desert. It is called the “Eye of the Sahara” or more formally, the Richat Structure（理查特结构）.Unlike famous mountains or canyons, this wonder is so huge that it is best seen from space! It has a diameter（直径） of about 50 kilometers, making it one of the largest and most unique geological formations on Earth. Period 1 Section A（1a-2d） 5 For a long time, scientists were puzzled by its perfect circular shape. They first thought it was a crater（弧坑） made by a meteorite（陨石） impact. However, after further study, they now believe it was formed by the uplifting of rock layers and then worn down by erosion（腐蚀） over millions of years. The different colours and shapes we see are various types of rock layers, creating a beautiful, giant bull's-eye（靶心） in the desert. Despite its remote location, the Eye of the Sahara attracts adventurous tourists and scientists. It stands as a powerful reminder of our planet's ancient history and the incredible forces of nature that shape our world.#3 Period 1 Section A（1a-2d） ( )1. What's the shape of the “Eye of the Sahara” like? A A.&1& B.&2& C.&3& D.&4& ( )2. What does the underlined word “remote” mean in the last paragraph? B A.Beautiful and attractive. B.Far away from other places. C.Well-known and popular. D.Dangerous and scary. Period 1 Section A（1a-2d） 7 ( )3. Which of the following is TRUE based on the passage? B A.The Eye of the Sahara is a very small and hard-to-find spot. B.You need to be in space to see the entire structure clearly. C.Scientists are no longer interested in studying it. D.It is a very young geological formation. Period 1 Section A（1a-2d） 8 ( )4. What creates the distinctive “bull's-eye” appearance of the structure? A A.Different types and colors of rock layers exposed by erosion. B.Rings of trees planted by ancient civilizations. C.Stains from different minerals in the groundwater. D.Layers of sand deposited by regular sandstorms. Period 1 Section A（1a-2d） 9 ( )5. What is the main idea of the passage? B A.The Sahara Desert is the largest desert in the world. B.The Eye of the Sahara is a huge and mysterious natural formation. C.Meteorite impacts create the most interesting landforms. D.Scientists have solved all the mysteries of the Richat Structure. Period 1 Section A（1a-2d） 10 重点知识积累（汉译英） 1. 位于 _____________ 2. 被……所困惑 ______________ 3. 磨损；侵蚀 ___________ 4. 作为……而存在 _________ be located in be puzzled by wear down stand as Period 1 Section A（1a-2d） 11 四、情景对话。 A.What's special about it? B.How high is it? C.Where is it? D.Is it a mountain in the US? E.Have you heard of Mount Fuji? F.When is the best time to visit? A: 1. ___ B: Yes, it's a very famous mountain in Japan. A: 2. ___ B: It's near Tokyo. E C Period 1 Section A（1a-2d） 12 A: 3. ___ B: It's about 3,776 metres high. A: 4. ___ B: It's an active volcano and it's considered a sacred mountain in Japanese culture. B A A.What's special about it? B.How high is it? C.Where is it? D.Is it a mountain in the US? E.Have you heard of Mount Fuji? F.When is the best time to visit? Period 1 Section A（1a-2d） A: 5. ___ B: I think the best time is in spring when the cherry blossoms are around.#11 F A.What's special about it? B.How high is it? C.Where is it? D.Is it a mountain in the US? E.Have you heard of Mount Fuji? F.When is the best time to visit? Period 1 Section A（1a-2d） 感谢聆听 15 $