Unit4单元复习课件 2025-2026学年人教版英语八年级下册

该初中英语单元复习课件围绕“自然奇观”主题，系统梳理了相关词汇（分Section A/B整合）、短语（按功能归纳）、核心句型及中考考点，通过模块式知识网络构建，将语言知识与自然主题紧密关联，形成从基础到应用的逻辑脉络。 其亮点在于融合语言能力与思维品质培养，设计分层练习体系，如单词填空从基础拼写过渡到语境运用，情景对话补全训练交际表达，中考考点中比较级最高级辨析、事实观点区分等题型，助力学生提升语言应用与逻辑分析能力，教师可依托此资料精准实施分层复习，高效巩固单元知识。

单元复习课件 目录 CONTENTS 单词复习 短语复习 知识点复习 练习题 01 02 03 04 Section A 单词复习 wonder 奇观 想知道 measurement 数量 测量 square kilometre 平方千米 below 在下面 低于 level 高度 水平 程度 surface 表面 表层 depth 深度 纵深 dive 潜水 跳水 research 研究 调查 vessel 大船 轮船 容器 unusual 特别的 不寻常的 bottom 底部 最下部 waterfall 瀑布 civilization 文明 means 方式 途径 development 发展 壮大 desert 沙漠 荒原 cubic 立方的 mile 英里 pool 池塘 水坑 Section B 单词复习 climber 攀登者 登山者 northern 北部的 向北的 distance 距离 遥远 survive 生存 存活 艰难度过 condition 状态 境况 degree 度 度数 程度 cliff 悬崖 峭壁 changeable 可能变化的 易变的 常变的 death 死亡 毁灭 破灭 determined 有决心的 坚决的 above 在上面 超过 teammate 同队队员 队友 shoulder 肩膀 肩部 bit by bit 一点一点地 逐渐地 ladder 梯子 阶梯 途径 measure 测量 量度为 措施 度量单位 successfully 成功地 顺利地 risk 使冒风险 危险 风险 curiosity 好奇心 求知欲 ambition 追求的目标 野心 雄心 explorer 探险者 勘探者 simply 仅仅 只 简单地 Section B 单词复习 risky 有危险的 有风险的 southern 南部的 向南的 located 位于 坐落在 freshwater 淡水的 淡水中生长的 type 类型 种类 attract 吸引 招引 引起反应 curious 好奇的 求知欲强的 traveller 旅行者 游客 natural 自然的 天然的 天生的 underwater 水下的 用于水下的 在水下 northeastern 东北的 东北方向的 coast 海岸 海滨 coral 珊瑚 珊瑚虫 reef 礁 礁脉 include 包含 包括 sand 沙子 alive 活着 在世 有活力 structure 结构 构造 体系 snorkel 使用呼吸管潜泳 呼吸管 school 群 turtle 海龟 龟 lifetime 一生 终身 重点短语 1.natural wonders自然奇观 2.connect with nature与自然连接 3.geography facts地理事实 4.talk about geography谈论地理 5.large numbers大数字 6.compare facts比较事实 7.the highest mountain最高的山 8.the deepest point最深点 9.the longest river最长的河 10.the lowest place最低的地方 11.below sea level低于海平面 12.above sea level高于海平面 13.square kilometres平方公里 14.cubic metres立方米 15.metres deep米深 16.metres high米高 17.as far as the eye can see目之所及 18.go on a trip去旅行 19.do research做研究 20.reach the top到达顶部 重点短语 21.make a climb进行攀登 22.pull oneself up把自己拉上去 23.bit by bit一点点地 24.fly above在……上方飘扬 25.survive the conditions在……条件下生存 26.deal with thin air应对稀薄的空气 27.changeable weather多变的天气 28.risk one’s life冒着生命危险 29.be determined to决心做…… 30.arrive at到达 31.step on one’s shoulders踩在某人肩上 32.make it past成功通过 33.do research做研究 34.measure the height测量高度 35.human curiosity人类好奇心 36.simply because仅仅因为 37.touch the sky触摸天空 38.one of the greatest wonders最伟大的奇观之一 39.arrive at the Second Step到达第二台阶 40.put up a national flag升起国旗 重点句子 1.What is the highest mountain in the world? → It’s Mount Qomolangma. 2.How high / deep / long is it? → It’s 8,848.86 metres high. 3.It is located in Africa. 4.It is one of the most amazing places to visit. 5.If you visit it, you will see the largest coral reef. 6.It is so deep that even birds cannot reach it. 7.Although it is dangerous, people still try to climb it. 8.It has been locked up since she died. 9.People risk their lives to explore the unknown. 10.It is simply because it’s there. 中考考点 动词不定式核心用法 语法考点 1. 形容词与副词比较级和最高级 构成规则： 单音节/部分双音节：tall → taller → tallest 多音节：beautiful → more beautiful → most beautiful 不规则：good/well → better → best；bad/ill → worse → worst Mount Qomolangma is the highest mountain in the world. The Nile River is longer than the Yellow River. 2. 大数字的读法与用法 写法与读法： 8,848.86 → eight thousand eight hundred and forty-eight point eight six 9,000,000 → nine million 用于描述：高度、深度、长度、面积等地理数据。 词汇考点 1. 自然地理词汇 mountain, river, desert, waterfall, trench, cave, valley, reef, lake 搭配：the highest mountain, the deepest point, the longest river 2. 方位与位置表达 above sea level, below sea level, in the north/south, located in 介词：in, on, at, above, below, between, among 3. 动作与探索相关词汇 climb, explore, measure, survive, reach, discover, risk 短语：pull oneself up, make it past, step on one’s shoulders 动词不定式核心用法 动词不定式核心用法 中考考点 1. 事实与观点区分 识别事实性陈述 辨别观点性表达 寻找观点标志词（think, believe, in my opinion等） 2. 习语理解 理解情感类习语含义 根据上下文推断习语意义 识别习语与字面意义的区别 3. 情节概括 识别故事发展顺序 概括主要事件 提取问题与解决方案 阅读技能考点 写作功能话题 1. 情感问题描述 描述个人情绪困扰 陈述人际关系问题 表达压力与烦恼 2. 建议与解决方法 给出具体建议 分享个人经验 提出解决方案 3. 感谢信写作 表达感谢之情 说明感谢原因 描述具体帮助 动词不定式核心用法 动词不定式核心用法 中考考点 1. 询问与描述自然奇观 What is the highest mountain in the world? How high/deep/long is it? Where is it located? 2. 表达比较与对比 The Sahara is larger than the Taklimakan Desert. The Mariana Trench is deeper than any other place in the ocean. 3. 表达原因与目的 原因：because, since, as People climb it because they are curious. 目的：so that, to They brought a ladder so that climbers could reach the top. 4. 表达让步 although, even though Although it is dangerous, many people still try. 句型与交际考点 阅读策略重点 扫读（Scanning） 快速查找特定信息：数字、年份、地名、人名。 理解事实与观点 事实：可验证的客观信息（如数据、历史事件）。 观点：表达个人看法或感受（常含 think, believe, amazing 等词）。 理解事件顺序 关注时间线索词：first, next, then, finally, in 1960, until 2008。 识别主题句 段落首句常概括该段主旨。 练习题 单词词义填空 1. Mount Qomolangma is the h______ mountain in the world. 2. The Sahara is the largest d______ in the world. 3. The Dead Sea is the l______ place on earth. 4. The Mariana Trench is the deepest point in the o______. 5. Many c______ try to climb Qomolangma every year. 6. The t______ on the mountain can drop to -30°C. 7. They brought a l______ to help climbers go up. 8. Human c______ drives people to explore. 9. Some animals can s______ in very cold places. 10. The Great Barrier Reef is a large c______ reef. highest desert lowest ocean climbers temperature ladder curiosity survive coral 单词词义填空 11. The Nile is the longest r______ in Africa. 12. The Amazon rainforest is called the “l______ of the earth”. 13. Qomolangma is still growing t______. 14. In the desert, water is very s______. 15. The f______ in that lake is so clear that you can see fish. 16. Many birds m______ to warmer places in winter. 17. The v______ of the desert is amazing at sunset. 18. We should p______ nature and not pollute it. 19. The i______ of that island are very beautiful. 20. He has a strong d______ to succeed. river lungs taller scarce freshwater migrate view protect islands determination 短语默写 1. 自然奇观 ______ 2. 与自然连接 ______ 3. 地理事实 ______ 4. 大数字 ______ 5. 比较事实 ______ 6. 最高的山 ______ 7. 最深的点 ______ 8. 最长的河 ______ 9. 低于海平面 ______ 10. 平方公里 ______ 11. 进行攀登 ______ 12. 做研究 ______ 13. 冒着生命危险 ______ 14. 决心做某事 ______ 15. 到达顶部 ______ 16. 应对稀薄的空气 ______ 17. 多变的天气 ______ 18. 人类好奇心 ______ 19. 在……条件下生存 ______ 20. 升起国旗 ______ natural wonders connect with nature geography facts large numbers compare facts the highest mountain the deepest point the longest river below sea level square kilometres make a climb do research risk one's life be determined to reach the top deal with thin air changeable weather human curiosity survive the conditions put up a national flag 句子翻译 1.Mount Qomolangma is the __________ mountain in the world. （珠穆朗玛峰是世界最高峰。） 2.The Dead Sea is the __________ place on earth. （死海是地球表面最低的地方。） 3.The Sahara Desert is about __________ square kilometres in size. （撒哈拉沙漠大约900万平方公里。） 4.__________ climbing Qomolangma is dangerous, many people still try. （虽然攀登珠峰很危险，但许多人仍尝试。） 5.They brought a ladder __________ climbers could reach the top more easily. （他们带了梯子以便登山者更容易登顶。） highest lowest nine million Although so that 句子翻译 6.The Great Barrier Reef is the __________ coral reef in the world. （大堡礁是世界上最大的珊瑚礁。） 7.Human __________ drives us to explore nature. （人类的好奇心驱使我们探索自然。） 8.If you go there, you __________ many colourful fish. （如果你去那里，你会看到许多五颜六色的鱼。） 9.This place is __________ its beautiful sunsets. （这个地方以美丽的日落而闻名。） 10.We should __________ nature instead of destroying it. （我们应该保护自然，而不是破坏它。） largest curiosity will see famous for protect 单项选择 （ ）1. ______ is the longest river in China. A. The Nile B. The Yellow River C. The Yangtze River D. The Amazon （ ）2. Mount Qomolangma is about ______ metres high. A. 8,848.86 B. 9,000 C. 11,000 D. 5,464 （ ）3. The Dead Sea is ______ sea level. A. above B. below C. on D. at （ ）4. Many climbers ______ their lives to reach the top of Qomolangma. A. take B. risk C. lose D. save （ ）5. The Sahara Desert is ______ than any other desert in the world. A. larger B. largest C. the largest D. more large C A B B A （ ）6. If you visit the Great Barrier Reef, you ______ many colourful fish. A. see B. saw C. will see D. are seeing （ ）7. They brought a ladder ______ climbers could reach the top more easily. A. because B. so that C. although D. if （ ）8. The Mariana Trench is ______ deepest point in the ocean. A. a B. an C. the D. / （ ）9. He is ______ to climb the mountain next year. A. determine B. determined C. determining D. determination （ ）10. The Amazon rainforest is often called “the lungs ______ the earth”. A. in B. on C. of D. for 单项选择 C B C B C 适当形式填空 1. Qomolangma is the ______ (high) mountain in the world. 2. The Nile is ______ (long) than the Yellow River. 3. Many people ______ (try) to climb the mountain every year. 4. He is ______ (determine) to succeed. 5. The weather is very ______ (change) in the mountains. 6. They ______ (bring) a ladder to help climbers in 1975. 7. It is ______ (danger) to climb without preparation. 8. The Great Barrier Reef ______ (be) a wonder of nature. 9. We should ______ (protect) the environment. 10. If you ______ (go) there, you will love it. highest longer try determined changeable brought dangerous is protect go 介词填空 用适当的介词填空（in, on, at, above, below, with, for, of）。 1. The Dead Sea is ______ sea level. 2. Mount Qomolangma is located ______ Asia. 3. They arrived ______ the top at 4:20 a.m. 4. He is determined ______ climb the mountain. 5. The Amazon is the largest rainforest ______ the world. below in at to in 句型转换 根据括号内要求或提示完成句子，保持句意基本不变。 1.Mount Qomolangma is the highest mountain in the world.（改为比较级句型） → Mount Qomolangma is __________ than any other mountain in the world. 2.The Mariana Trench is so deep that it's difficult to explore.（改为同义句） → The Mariana Trench is __________ deep to explore. 3.They built the ladder because they wanted to help climbers.（改为目的状语从句） → They built the ladder __________ climbers could reach the top. 4.If you study geography, you will learn about natural wonders.（改为否定条件句） → If you __________ study geography, you __________ learn about natural wonders. higher too so that don't won't 情景对话补全 Dialogue: Two friends talking about natural wonders A: Hi! We just learned about natural wonders in geography class. Have you ever heard about Mount Qomolangma? B: Yes, of course. ________________________. A: Do you know how high it is? B: I think it's about 8,848 metres. ________________________? A: No, I haven't, but I'd love to climb it someday. B: Really? But it's very dangerous! People risk their lives to climb it. A: I know, but ________________________. Human curiosity drives us to explore. B: Speaking of exploration, we also learned about the Mariana Trench. A: Oh yes! ________________________? B: It's the deepest point in the ocean. But tell me, ________________________? A: My favorite is the Great Barrier Reef. ________________________. B: That's in Australia, right? Why do you like it so much? A: Because ________________________. What's your favorite natural wonder? B: Actually, I really like the Sahara Desert. ________________________. A: That's interesting! Nature is really full of wonders. It's the highest mountain in the world. Have you ever climbed it? human curiosity drives us to explore / I think it's worth trying.  How deep is it? / What do you know about it? what's your favorite natural wonder? It's the largest coral reef in the world / It's in Australia. it has colorful fish and beautiful coral / it's amazing to see.  It's the largest hot desert in the world / It's so vast and mysterious. 感谢聆听 批评指导 Thanks for listening $