初中英语人教版(2024)八下Unit 4 The Wonders of Nature Section A(1a-2d) 教学设计

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初中英语人教版(2024)八下Unit 4 The Wonders of Nature Section A(1a-2d) 教学设计

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一、教学基本信息
二、教学目标
核心素养目标
1.语言能力:积累世界地理与深海探索相关词汇,掌握最高级/数据描述的句式,能听懂并提取地理与深海信息,完成对话交流与信息填空。
2.思维品质:通过对比地理数据与深海深度,提升数字逻辑与空间认知能力;在探究深海知识中,培养科学探究与问题分析的思辨能力。
3.学习能力:掌握听力信息提取、图表数据阅读的策略,提升自主获取地理与海洋知识的能力;通过小组探究,提高合作学习与知识分享的能力。
4.文化意识:了解中国深海探测成就(如“奋斗者”号),感受人类探索自然的跨文化共识,增强对地理与海洋文化的理解与民族自豪感。
三、教学重难点
(一)教学重点
1.掌握地理与深海主题词汇,熟练运用最高级和数据描述句式。
2.能从听力和图表中提取关键数据与信息,完成对话交流与填空任务。
(二)教学难点
1.在对话中准确、流畅地描述地理数据与深海特征,避免数字表达错误。
2.结合科学知识,用英语清晰地阐述深海探索的意义与保护意识。
四、教学方法
1.情境教学法:创设“自然奇观探索分享会”情境,结合图片、短视频、地理数据图表,让学生在语境中学习和运用语言。
2.任务型教学法:设计听力任务、对话练习任务、角色扮演任务等,让学生在完成任务中巩固知识、提升技能。
3.合作学习法:通过小组讨论、结对练习、角色扮演等形式,鼓励学生互助合作,提升交流能力。
4.讲授法:针对核心词汇、大数表达、句型结构进行精准讲解,帮助学生夯实基础。
五、教学准备
1.多媒体课件:包含世界自然奇观图片、短视频、听力音频、对话示例、词汇卡片、句型模板、地理数据图表等。
2.学习任务单:设计听力填空题、词汇匹配题、数据表达练习题、角色扮演脚本。
3.分组准备:将学生分为2人小组,明确小组内角色扮演分工(如提问者、介绍者)。
六、教学过程(第1课时)
(一)新课整体概述
1.展示单元封面页,呈现本单元核心学习目标,用简洁语言辅助解释,让学生清晰知晓本单元的学习任务。
In this unit, you will
talk about geography facts about natural wonders.
compare facts about famous places.
share geography facts using large numbers.
explore how and why people connect with nature.
2.抛出单元大问题:展示单元核心大问题“How do we connect with nature ”(我们如何与自然联系?),引导学生初步思考,为单元学习铺垫。
(二)导入本节课内容
1.探究单元页问题:展示单元页自然景观图片,观察图片,探究以下问题:
Do you know the name of the waterfall in the photo
Yes, it’s Victoria Falls.
What do you think is special about it
It’s one of the largest waterfalls in the world, with a wide curtain of water.
What other natural wonders do you know
The Grand Canyon, the Huangguoshu Waterfall, Mount Qomolangma and the Amazon Rainforest.
2.播放视频,与学生分享维多利亚瀑布的壮观景色。
3.情境创设:播放自然奇观短视频(包含维多利亚瀑布、亚马逊雨林、死海、撒哈拉沙漠、尼罗河),提问:“What other natural wonders do you know Which one impresses you most ”,引导学生用简单英语回答,激活已有知识。
4.词汇预热:讲解“wonder, desert, below, level”等核心词汇,结合图片帮助学生理解词义,教师领读强化记忆。
(三)新课讲授与听力训练
1. Pre-listening:(1)完成1a任务:让学生将自然奇观图片与英文名称匹配,核对答案,强化词汇与图片的关联记忆。
F → Nile River A → Angel Falls D → Mount Qomolangma
C → Dead Sea B → Sahara Desert E → Mariana Trench
(2)提问:“Have you heard of these natural wonders What do you know about them ”,引导学生简单交流,初步熟悉话题。
Nile River(尼罗河)
位置:非洲东北部,流经坦桑尼亚、乌干达、苏丹、埃及等 11 国,注入地中海。
关键数据:全长约 6650 千米,是世界最长河流;由白尼罗河、青尼罗河汇合而成。
特点与意义:孕育了古埃及文明,至今仍是埃及等国农业、生活用水的核心水源;沿岸有众多历史遗迹。
Angel Falls(安赫尔瀑布)
位置:委内瑞拉东南部的圭亚那高原,藏于雨林深处。
关键数据:总落差 979 米,自由跌落高度达 807 米,是世界最高的瀑布。
特点:水流从平顶高原的陡崖直坠,雨季时水量充沛,水雾升腾。
Mount Qomolangma(珠穆朗玛峰)
位置:中国与尼泊尔边界,喜马拉雅山脉主峰。
关键数据:海拔 8848.86 米,为世界最高峰,且因板块挤压仍在缓慢升高。
特点:高海拔气候极端,终年积雪;是全球登山爱好者的终极挑战地;生态环境独特,有多种高原珍稀物种。
Dead Sea(死海)
位置:约旦、以色列、巴勒斯坦交界处,内陆盐湖。
关键数据:湖面海拔-416米,是地球陆地表面最低点;湖水盐度极高(约 34%,是普通海水的 8-9 倍)。
特点:高盐度让人体可以轻松漂浮在水面;水中几乎没有生物存活;湖泥和盐水常被用于疗养。
Sahara Desert(撒哈拉沙漠)
位置:非洲北部
关键数据:面积约 900万平方千米,是世界最大的沙漠。
特点:以广阔的沙丘、砾漠为主;昼夜温差极大;虽干旱但有绿洲和游牧民族;近年来沙漠边缘有荒漠化扩张的问题。
Mariana Trench(马里亚纳海沟)
位置:西太平洋,靠近马里亚纳群岛
关键数据:最深处(斐查兹海渊)约 11000 米,是地球海洋的最深处。
特点:这里水压极高、完全黑暗、温度接近冰点;仍发现了多种独特的深海生物;同时也检测到了人类丢弃的塑料垃圾。
2. While-listening:
(1)第一遍听(1b):展示表格,让学生预测每个地点的描述词。填写各个地点的描述词,不填数字,整体把握对话内容。
Place Description Measurement
Mount Qomolangma the highest mountain in the world _______ metres high
Sahara Desert the biggest desert in the world about _______ square kilometres in size
Dead Sea the lowest place on earth _______ metres below sea level
Mariana Trench the deepest point in the ocean about _______ metres deep
(2)展示1c的四个大数,让学生尝试读出数字,讲解数字读法规则,重点操练thousand/million /point的发音,避免混淆。
小数点:point
小数点后:一个一个读
三位数:hundred and …
四位数、五位数:… thousand
七位数:… million
416 → four hundred and sixteen
8,848.86 → eight thousand eight hundred and forty-eight point eight six
11,000 → eleven thousand
9,000,000 → nine million
(3)第二遍听(1c):对照数字选项,完成表格填空,重点捕捉数字发音。
Place Description Measurement
Mount Qomolangma the highest mountain in the world 8,848.86 metres high
Sahara Desert the biggest desert in the world about 9,000,000 square kilometres in size
Dead Sea the lowest place on earth 416 metres below sea level
Mariana Trench the deepest point in the ocean about 11,000 metres deep
(4)第三遍听:让学生填空完成对话片段,重点关注“the highest、the biggest、the deepest、below sea level”等短语和句型,教师讲解关键表达。
Host: Welcome to our game show! Today, it’s all about geography. Answer as quickly as you can! Question one: What is the highest mountain in the world
Fu Xing: It's Mount Qomolangma!
Host: Correct! How high is it
Lin Hongyu: I know this — it's 8,848.43 metres high.
Host: No, sorry. Fu Xing
Fu Xing: Is it 8,848.86 metres
Host: Yes! But some scientists say Qomolangma is still growing taller! Now, name the biggest desert in the world.
Fu Xing: The Taklimakan Desert
Host: Wrong! Ella
Ella: The Sahara Desert.
Host: Right! Now, how big is it
Ella: It's about 9,000,000 square kilometres.
Host: That's right! What's the lowest place on earth
Lin Hongyu: It's the Dead Sea!
Host: Well done! Its surface is 416 metres below sea level. Now where's the deepest point in the ocean
Fu Xing: It's in the Mariana Trench.
Host: That's correct! How deep is it
Fu Xing: It's about 11,000 metres deep.
Host: Correct!
3. Post-listening:(1)听听力对话并跟读,让学生熟悉语音语调,体会交流自然奇观的语气。
(2)结对练习:学生两人一组,一人提问,一人回答,轮流替换四个地点(死海、珠穆朗玛峰、撒哈拉沙漠、马里亚纳海沟),可参考以下表达:
A: What’s the lowest place on earth
B: It’s ...
A: How low is it
B: Its surface is ... metres below sea level.
A: Now, what’s ...
教师巡视指导,纠正发音、表达错误。
(3)展示分享:邀请2-3组学生进行课堂展示,教师从语言准确性、语气自然度等方面给予点评。
(4)话题拓展:话题拓展:提问学生:“What natural wonders are there in China How would you introduce them to foreigners ”,邀请2-3名学生分享自身了解,鼓励学生运用本节课所学词汇和句型表达。
(四)课堂小结与作业
1.课堂小结:师生共同回顾本节课核心词汇和核心句型,强调听力信息捕捉的方法。
2.布置作业:背诵本节课核心词汇和短语。
介绍一处中国的自然奇观(如黄山、长江),包含其名称、特征、数据等信息。
七、板书设计(第1课时)
Unit 4 The Wonders of Nature Section A (1a-1d)
1. 核心词汇
wonder, desert, below, level, surface
2. 核心句型
—What’s the lowest place on earth
—It’s ...
—How low is it
—Its surface is ... metres below sea level.
—Now, what’s ...
八、教学过程(第2课时)
(一)新课导入
1.词汇听写:听写“wonder, desert, below, level, surface”等核心词汇。
2.对话回顾:邀请学生展示上节课的对话作业,复习核心交流句型。
3.图表导入:(1)展示“OCEAN DEPTHS”图表,提问:
What can you see
mountains, ships, numbers
How deep is the deepest point
10,909 metres
Compare it with Mount Qomolangma. Is the ocean deeper than the mountain is high
It is deeper than Mount Qomolangma is tall.
(2)引导学生观察图表数据,复习大数表达(如10,909 metres、8,848.86 metres),强调“metres below sea level”“square kilometres”等单位表达。
(二)新课讲授与听力训练
1. Pre-listening:完成2a任务:展示“OCEAN DEPTHS”图表,分步引导解读:
第一步:标注图表核心要素。
第二步:示范读取一个数据,强调大数读法。
第三步:学生独立完成2a填空任务,教师巡视,重点指导大数书写与单位表达。
Fendouzhe reached 10,909 metres.
The deep sea begins at 200 metres.
The Titanic rests at 3,800 metres.
A whale can dive to over 2,000 metres.
2. While-listening:
(1)第一遍听(2b):听一个班级与深海研究者的对话并勾选讨论的主题。核对答案并验证勾选结果:
where the deep sea begins
why people are researching the deep sea √
which Chinese submersible dived deeper in the water than many others
what deep-sea animals are like √
how everyone should protect the deep sea
(2)第二遍听(2c):让学生根据对话完成填空,核对答案。
People still don’t know much about the ocean floor.
In 2020, China’s Fendouzhe dived into the deep sea and filmed it.
Some animals have unusual abilities. Some are blind but can “see”. Some can even create their own light.
There is rubbish even at 11,000 metres deep.
3. Post-listening:(1)让学生跟读对话,感受语音语调和停顿,进行角色扮演。
(2)场景练习(4d):①学生两人一组,围绕2d拓展问题(或自主设计问题)进行问答,参考范例:
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
教师鼓励学生补充更多问题,如:“How can we protect the deep sea ”“What other Chinese submersibles do you know ”
②学生两人一组,模仿范例进行角色扮演,替换角色与问题,教师巡视指导,纠正表达错误。
③展示分享:邀请2-3组学生进行课堂展示,教师从语言准确性、情感表达等方面给予点评。
A: What is the largest shark in the deep sea
B: I think it’s the whale shark.
A: Do you know how large it is
B: It can grow up to about 10 to 20 metres in length.
A: What is the bottom of the deep sea like
B: It is dark, freezing, and has high pressure. There are also many unique creatures.
A: Why is it important to research the deep sea
B: Because the deep sea has unique species for research, holds important resources, and can help control our climate.
(3)情感升华:教师引导学生思考:“What can we do to protect the deep sea ”,鼓励学生用英语表达保护建议,树立海洋保护意识。
(三)语言点精讲
1. wonder:① n. 奇观;奇迹;② n.[U]惊叹,惊奇;③ v. 琢磨;想知道;④ v. 感到诧异
2. 辨析below与under
below:表示在某物的下方,但不一定是在正下方。反义词:above
under:表示在某物的正下方。反义词:over
sea level 海平面
a high/low level 高/低水平
3. A whale can dive to over 2,000 metres. 鲸鱼可以下潜至2000多米。
dive down 潜入;下潜;俯冲
dive into 跳入;跳进
4. Some animals have unusual abilities. 有些动物拥有非凡的能力。
unusual adj. 特别的;不寻常的 → usual adj. 通常的 → usually adv. 通常地;平常地 → unusually adv. 不寻常地
(四)即时练习
1.单词拼写,核对答案并讲解易错点。
In his works, he paid special attention to the “little man” at the bottom (底部) of society in the UK, which deeply mirrored the social reality at that time.
As far as we know, the Sahara Desert is the biggest desert (沙漠) in the world.
The small boat moves slowly across the peaceful surface (表面) of the lake.
Children below (低于) 1.1 metres high can visit the zoo for free.
Zhang Guimei is an unusual (不寻常的) teacher. She set up the first free girls’ high school in 2008.
After reading the book, he wondered (琢磨) why people built those small houses there.
2.用所给词的适当形式填空,核对答案并讲解易错点。
We want to visit the Great Wall, which is considered one of the seven wonders (wonder) in the world.
Many deep-sea animals have unusual (usual) abilities to survive in the terrible deep-sea conditions.
With a depth (deep) of 64 metres, Lake Erie is the shallowest of the Great Lakes.
The divers (dive) found some rare shells when they went underwater yesterday.
The measurements (measure) of this room are 5 meters in length, 4 meters in width and 3 meters in height.
(五)课堂小结与作业
1.课堂小结:师生共同梳理本节课核心词汇、句型和短语,回顾深海探索的原因。
2.布置作业:整理本节课语言点笔记,背诵核心句型和短语。
查阅更多中国深海探测成就(如“蛟龙”号、“奋斗者”号),用英语写一段5句话的介绍。
九、板书设计(第2课时)
Unit 4 The Wonders of Nature Section A (2a-2d)
1. 核心词汇
depth, unusual, bottom
2. 关键数据
Fendouzhe: 10,909 metres
Titanic: 3,800 metres
Deep sea starts at: 200 metres
Rubbish at: 11,000 metres
十、教学反思
1.本节课通过情景创设、任务驱动和小组合作,较好地落实了听说训练目标,学生能基本运用核心句型进行自然奇观相关交流。但部分学生在听力捕捉大数信息时速度较慢,需在后续教学中增加大数表达的专项训练。
2.拓展探究环节学生参与度较高,但部分学生在自主设计问题时思路较窄,需提供更多问题支架与范例,引导学生深入思考深海探索与保护的意义。
3.学生在角色扮演中,部分表达不够自然,缺乏真实感,后续可提供更多对话模板和语境示例,鼓励学生加入细节描写。
4.文化意识目标的渗透较为自然,通过“奋斗者”号成就介绍,增强了学生的民族自豪感,但可补充更多深海保护的案例,强化学生的环保意识。

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