Unit 4--第一课时（内文）-【学导练】2026年八年级下册英语课件PPT（人教版）

英语 八年级 下册 配人教版 返回目录 Unit 4 The Wonders of Nature 返回目录 返回目录 第一课时 Section A (1a~3d) 返回目录 目 录 CONTENTS 01 课前预习 02 名师点拨 04 课堂小测 05 课后作业 03 语篇理解 返回目录 课前预习 核心单词 核心单词 名词 1. 沙漠；荒原 ______________ 2. 数量；测量 ______________ 3. 高度；水平；程度 ______________ 4. 表面；表层 ______________ 5. 深（度）；纵深 ______________ desert measurement level surface depth 返回目录 名词 6. 潜水艇 ____________________ 7. 底部；最下部 ____________________ 8. 瀑布 ____________________ 9. 文明 ____________________ 10. 发展；壮大 ____________________ 形容词 11. 特别的；不寻常的 ____________________ submersible bottom waterfall civilization development unusual 返回目录 兼 词 12. 奇观；惊叹n. 琢磨;想知道；感到诧异v. ______________ 13. 在(……)下面；低于prep. & adv. ______________ 14. 潜水；跳水；俯冲v. & n. _______________ wonder below dive 返回目录 常考短语 15. 与……连接；与……建立联系 ___________________ 16. 在世界上 _____________________ 17. 平方千米 _____________________ 18. 在地球上 _____________________ 19. 海平面 _____________________ 20. 潜入；跳入 _____________________ connect with in the world square kilometre on earth sea level dive to / into 返回目录 21. ……的底部 _______________________ 22. 顺便问一下 _______________________ 23. 古代文明 _______________________ 24. 不惜任何代价 _______________________ 25. ……的发展 _______________________ the bottom of … by the way ancient civilizations at all costs the development of … 返回目录 典型句子 26. 地球上最低的地方是什么？ What's _________________________ on earth? 27. 深海的底部是什么样的？ What is ________________________________________ like? 28. 它流经的距离最远，大约有 6 300 公里长。 It _______________________________ and is about 6,300 kilometres ______________________. the lowest place the bottom of the deep sea travels the farthest long 返回目录 29. 尼罗河和黄河都帮助了古代文明的发展。 ______________ the Nile ______________ the Yellow River helped ancient civilizations ____________________. Both and to develop 返回目录 名师点拨 wonder的用法 1 The Wonders of Nature 自然奇观 （教材P31） 1. wonder作名词时，意为“奇观；惊叹”。常见短语：the wonder(s) of … ……的奇观；work wonders创造奇迹；in wonder 惊讶地。如： The Grand Canyon is one of the greatest wonders of the natural world. 科罗拉多大峡谷是自然界最伟大的奇观之一。 Arthur opened his eyes in wonder. 亚瑟惊奇地睁大了眼睛。 返回目录 2. wonder作动词时，意为“琢磨；想知道；感到诧异”。当意为“想知道”时，与want to know 同义，其后常接if，whether, where，when，who，why等连接词引导的宾语从句或“疑问词+不定式”结构。如： She wondered if her friend would remember her birthday. 她想知道她的朋友是否会记得她的生日。 I wonder when the next train to London leaves. 我想知道下一班去伦敦的火车什么时候发车。 I was wondering how to tell him the bad news. 我一直在琢磨该如何告诉他这个坏消息。 返回目录 1. 一些世界奇观正面临消失的危险。 Some ______________ ______________ are in danger of disappearing. 2. 我们琢磨买什么作为她的生日礼物。 We wondered ______________ ______________ ______________ for her birthday present. 根据汉语意思完成句子，每空一词 world wonders what to buy 返回目录 depth的用法 2 OCEAN DEPTHS 海洋深度 （教材P33） 返回目录 The well has a depth of 50 metres. 这口井有50米深。 The river in the village is so deep. 村里的那条河非常深。 I felt deeply moved when I heard the story. 听到这故事时，我深受感动。 返回目录 1. We can see strange fish in the ______________ sea. 2. The scientist measured the ______________ of the ocean at different locations （位置）. 3. She was ______________ moved by the old man's story of helping homeless children. 用depth的适当形式填空 deep depth deeply 返回目录 development的用法 3 helped in the development of ancient civilizations 帮助了古代文明的发展 （教材P34） 返回目录 This book talks about the development of cities. 这本书讲述了城市的发展。 The small town began to develop in 2010. 这个小镇从 2010 年开始发展。 Many developing countries need more help with education. 许多发展中国家在教育方面需要更多帮助。 This developed area has many modern shopping malls. 这个发达地区有很多现代化购物中心。 返回目录 ( )1. With the ______ of new technology, we can study online easily. A. developed B. developing C. development ( )2. This company ______ a new kind of product last year, and it became very popular. A. developed B. develops C. develop C A 返回目录 ( )3. —Is Singapore a ______ country? —Yes, it has a high level of life and good public services. A. developing B. developed C. development B 返回目录 语篇理解 一、(听说训练：听选信息)听教材P34-3a的对话,根据下列问题和括号内的提示,选择正确的信息口头回答问题 1. How long is the Yangtze River? (5,464 kilometres long / about 6,300 kilometres long / 6,671 kilometres long) ______________________________________________________________ ______________________________________________________________ secret It's about 6,300 kilometres long. / About 6,300 kilometres long. 返回目录 2. Which river is Ella's favourite? (the Yangtze River / the Yellow River / the Nile) ______________________________________________________________ Her favourite river is the Nile. / The Nile. 返回目录 二、(听说训练：询问信息)你希望了解更多关于Ella的旅行的信息,请根据以下提示向她提两个问题 1. 你在旅行中还参观了其他有趣的地方吗？ ______________________________________________________________ 2. 未来你还想参观其他哪些河流？ ______________________________________________________________ Did you visit other interesting places during your trip? What other rivers do you want to visit in the future? 返回目录 三、根据教材P34-3a的对话,完成短文填空 请从方框内选择适当的词并用其正确形式填空,使文章完整连贯。注意每空一词,每词仅用一次,有两词为多余选项。 in learn develop history on long bottom 返回目录 Ella had a great trip. She saw the Hukou Waterfall 1 _________ the Yellow River. She asked Yaming if it's the longest river in China. Yaming told her that the Yangtze River is the longest river in China. It is about 6,300 kilometres long. The Yellow River is 5,464 kilometres long and is the second 2 _________. He also explained that the Yellow River's name comes from the brown and yellow earth that some parts of the river carry. in learn develop history on long bottom on longest 返回目录 Ella likes 3 _________ about rivers and her favourite is the Nile. It is the longest river in the world and it's 6,671 kilometres long. The Nile is very important in Egypt's 4 _________. Both the Nile and the Yellow River helped ancient civilizations 5 _________ and they are still important today. So people should protect these rivers at all costs. in learn develop history on long bottom learning history develop 返回目录 1. _______________ 2. _____________ 3. _____________ 4. _______________ 5. ____________ on longest learning history develop 返回目录 一、根据句意及所给提示,用单词的适当形式填空 课堂小测 1. The ______________ (deep) of this lake is about 10 metres. 2. The Great Wall is one of the greatest ______________ (wonder) in the world. 3. The temperature will be _____________ zero tonight. It will be very cold. 4. The __________________ (develop) of our school library makes it easier for us to find books. 5. There are different shapes of stones at the ______________ (底部) of the river. depth wonders below development bottom 返回目录 二、根据汉语意思完成句子,每空一词 6. 我们城市的面积大约为800平方千米。 Our city is about 800 ______________ ______________ in size. 7. 在地球上有很多水，但大部分是盐水。 There is a lot of water ______________ ______________, but most of it is salt water. 8. 埃及的一些地方低于海平面。 Some places in Egypt are ______________ ______________ ______________. square kilometres on earth below sea level 返回目录 9. 我明天要去图书馆。顺便问一下，你想和我一起去吗？ I will go to the library tomorrow. _____________ __________ ______________, do you want to go with me? 10. 我们必须不惜一切代价保护环境。 We must protect the environment ______________ ______________ ______________. By the way at all costs 返回目录 三、单项填空 ( )11. The sea _____________ the plane is blue. A. between B. above C. below ( )12. The river is too ______ for us to walk across. A. deep B. depth C. deeply ( )13. Do you know the ______ of paper in ancient China? A. development B. develop C. developing C A A 返回目录 ( )14. The water ______ in the river rose after the heavy rain. A. pressure B. temperature C. surface D. level ( )15. After a whole day's walk, Tom felt tired and down. He didn't see anything ______ during his trip. A. common B. unusual C. terrible D. boring D B 返回目录 此部分习题详见独立装订的《分层作业本》。请同学们完成Unit 4第一课时的练习题。 课后作业 返回目录 Thanks ! 返回目录 $