Unit 4 The Wonders of Nature Section B 2a-2c 课件2025-2026学年人教版英语八年级下册

该初中英语课件聚焦自然主题词汇（below、common等）及反义词，通过"反义词匹配（如large-small配沙漠实例）→how结构提问（如How high is Qomolangma）→语篇填空（贝加尔湖）"的学习支架，衔接词汇辨析、句型运用与语篇实践，帮助学生逐步掌握目标语言知识。 其亮点是以自然奇观为语境，通过反义词对比、how结构操练和贝加尔湖语篇任务培养语言能力，思维导图与拓展短文写作提升思维品质，渗透保护自然的文化意识。教师可借助系统练习与评价工具高效教学，学生能在实践中掌握词汇并形成环保理念。

2. Whose birthday is it? Unit 4 The Wonders of Nature 人教版 英语（八年级下册） Section B Vocabulary in Use 学习目标 01 02 03 通过匹配、朗读等方式，掌握 below、common、risky、survive、deep 等词汇及反义词的对应关系，感知 how + 形容词/副词 特殊疑问句的用法，准确认读并理解词义。（学习理解） 通过造句、短文填空等练习，内化 located、survive、deep 等词汇的用法，能正确使用 how long/high/deep 等结构提问，并能在语篇中运用目标词汇完成填空。（应用实践） 通过讨论和拓展练习，理解目标词汇在描述自然、环境等主题语境中的表意功能，能够主动用所学词汇描述一处自然景观，并分享自己对探索自然的看法，认同保护自然的理念。（迁移创新） 2. Whose birthday is it? 01 词汇 Vocabulary Match the words on the left with their opposites on the right. 2a ____ 1. below ____ 2. common ____ 3. low ____ 4. dead A. safe B. bottom C. southern D. above ____ 5. top ____ 6. northern ____ 7. risky ____ 8. survive E. unusual F. living G. high H. die 2. Whose birthday is it? Vocabulary in Use 02 词汇运用 Fill in the blanks with the proper words in 2a. It is ______ to wait for the traffic light to turn green, but it is ______ to walk across the road without looking. Seeing a cat in the street is very ________, but seeing a wild tiger there is ________. The kite is ______ the clouds, and the bridge is _______ the river. Without food and water, plants cannot _______; they will ______. safe risky common unusual above below survive die noun verb adj. adv. What other opposites do you know? Can you add more? Opposites failure ➡️ success risk ➡️ safety shut ➡️ open harm ➡️ protect remain ➡️ change relaxed ➡️ stressed sadly ➡️ happily lastly ➡️ firstly Before the adventure, let’s learn some about “How”. Sahara Desert撒哈拉大沙漠 Mount Qomolangma珠穆朗玛峰 The Nile 尼罗河 How large is the Sahara Desert? How high is the Mount Qomolangma? How long is the Nile River? It’s about 9,320,000 square kilometres. It’s about 8,848.86 metres high. It’s about 6,670 kilometres long. Let’s learn. 疑问副词 用法·含义 how often how far how heavy how large how high how long how deep how fast 询问频率；多久一次 询问距离；多远 询问重量；多重 询问尺寸/面积/规模；多大 询问高度；多高 询问长度/时间；多长/多久 询问深度；多深 询问速度；多快 2b Read the examples and make more sentences using how and the words in the box. How far is it from your home to school? How heavy is a blue whale? How large is your country? How often do you exercise? long　high　deep　old　fast　soon 1. 2. 3. 4. 5. 6. How long is the Yangtze River? How high is the Mount Kilimanjaro? How deep is the Mariana Trench? How old is the Lake Baikal? How fast can you run? How soon can we get there? 2. Whose birthday is it? Production 03 产出 Lake Baikal 贝加尔湖 2c Complete the passage with the correct forms of the words in the box. deep　survive　wonderful　surface　dive Located in Siberia, Russia, Lake Baikal is one of the world's most famous lakes. It is the ______ freshwater lake in the world. To reach the bottom, you must ______ 1,620 metres! It is also larger than most other lakes. Its ______ covers 31,500 square kilometres. That is bigger than the country of Belgium! Lake Baikal is cold most of the year. But over 1,200 different types of animals can still ______ in this environment. Today, the lake still attracts many curious travellers. After all, it is a great natural _______! deepest dive surface survive wonder adj.位于 西伯利亚 贝加尔湖 adj.淡水的 saltwater 咸水的 比利时 n.种类 v.吸引 adj.好奇的 n.旅行者 adj.自然的 artificial 人造的 Discuss the questions. 1. What did the passage compare Lake Baikal with? Why? It compared Lake Baikal with the country of Belgium. 2. Why do you think many travellers visit Lake Baikal? Because it is one of the world’s most famous lakes, the deepest freshwater lake on Earth, and a great natural wonder. Its huge size, unique environment, and rich wildlife attract curious travelers. Because the surface area of Lake Baikal (31,500 square kilometres) is larger than Belgium, to show how large and amazing the lake is. Finish the mind map and try to introduce Lake Baikal. Lake Baikal deepest surface located animals How deep? 1,620metres How large? 31,500 square kilometres How many? over 1,200 different types of animals Siberia, Russia Evaluation(评价) Complete content (内容完整) Correct language (语言准确) Clear voice (自信表达) 2. Whose birthday is it? Language Points 04 要点详解 词 讲 练 located /ləʊˈkeɪtɪd/ adj. 位于；坐落在 1. The small village ________ (locate) at the foot of a big mountain is very beautiful. 2. Our new school library is ________ (locate) in the east of our campus. 3. The hotel ________ (locate) by the sea is a popular place for travelers in summer. located 动词：locate（v. 定位；找到；使坐落于） 名词：location（n. 位置；地点） 常见搭配：be located in/at/on（位于……） 例句：The famous castle is located in Scotland. 这座著名的城堡位于苏格兰。 Our company's new office is located at the foot of the mountain. 我们公司的新办公室坐落在山脚下。 located located 词 讲 练 curious /ˈkjʊəriəs/ adj. 好奇的；求知欲强的 1.The little boy looked at the magic box _________ (curious), wondering what was inside. 2.Her __________ (curious) made her open the door and walk into the room. 3.孩子们总是对自然界的一切事物感到好奇。 Children are always _________ _________ everything in nature. curiously curiousity curious about 词形变换：curiosity n. 好奇心 curiously adv. 好奇地 固定搭配：be curious about 对……好奇 例句：He is such a curious boy, always asking questions. 他这个孩子好奇心很强，总是爱提问。 As a child, I’m curious about the UFO.作为一个小孩，我对不明飞行物感到好奇。 词 讲 练 natural /ˈnætʃrəl/ adj. 自然的；天然的；天生的 1._______ (nature) resources are important and we should use them wisely. 2. We should try to protect ______ (natural) and live in harmony with it. 3.She has practiced the piano for years, so she plays it _________ (natural) in front of the audience. natural 自然的；天然的 常见搭配：natural resources/beauty/environment 自然资源/美景/环境 We can enjoy the natural beauty in the mountains. 我们可以欣赏大山里的自然美景。 天生的；本能的 It’s natural for people to wonder and worry about opinions of others. 好奇和在意别人的想法是人的天性。 nature n.大自然 naturally adv. 自然地 nature naturally 2. Whose birthday is it? 05 课堂小测 Exercise 一、单项选择 ( )1. After the heavy rain, we were surprised to find the little bird in the tree was still ______. A. live B. alive C. lovely D. lively ( )2. Zhujiajiao is an amazing ancient town and it ______ millions of tourists every year. A. attracts B. develops C. encourages D. takes ( )3. Lake Baikal，Located in Siberia, Russia, is one of the world's ___lakes. A. more famous B. most famous C. famous D. famousest ( )4. There are so many ______ of smart phones in this shop. I really don’t know which to buy. A. parts B. types C. sizes D. customers B A B B 二、用单词的适当形式填空。 1. This national park is famous for its ________ (nature) beauty. There are mountains, lakes, and forests everywhere. 2. The new library is _______ (locate) in the centre of the campus, next to the teaching building. 3. The volume (体积) of this Water Cube is about 98,000 _______ (cube) metres. 4. Crossing the desert alone is a _______ (risk) attempt (尝试). 5. There are many beautiful beaches in the _________ (south) part of the country. 6. This national park is famous for its ________ (nature) beauty. There are mountains, lakes, and forests everywhere. cubic southern natural located risky natural 三、根据汉语提示完成句子。 1. 经过长时间的攀登，他们终于到达了山顶。 They finally ________ ______ _____ of the mountain after a long climb. 2. 汤姆对这台机器的工作原理很好奇。 Tom _____ ________ ________ how the machine works. 3. 坐落于湖南湘西土家族苗族自治州，凤凰古城是一座历史悠久的古镇。 _________ _____ Tujia-Miao Autonomous Prefecture of Xiangxi, Hunan, the Ancient Town of Fenghuang is a historic town with a long history. 4. 这座山不是最高的，但海拔有1860米。 This mountain isn’t the highest, but it’s 1,860 metres _______ _____ ________. 5.位于新疆北部的城市阿勒泰吸引了人们的目光。 Altay, a city in northern Xinjiang, _______ _________ __________. Located in above sea level reached the top is curious about attract people’s attention Homework 基础作业 拓展作业 实践作业 完成本节课词汇相关的填空和匹配练习。 使用至少5个本课词汇，写一段介绍贝加尔湖或者你最喜欢的自然景观的短文。 上网查询更多关于世界自然景观的资料，阅读后以自己喜欢的方式（如海报、简报、口头报告）在班级分享。 2. Whose birthday is it? Thanks for watching! $