Unit 4 Section B 1a- 2c 课件 2025-2026学年人教版英语八年级下册

该初中英语课件围绕“自然奇观”主题，涵盖珠穆朗玛峰与贝加尔湖相关核心词汇（如risky, survive, deep）、反义词对应（below-above等）、“how + adj/adv”特殊疑问句及skimming、scanning阅读策略。课堂通过视频导入、自由讨论激活已知，再以问题链引导文本分析，搭建从生活经验到语言知识的学习支架。 其亮点在于融合语言能力与文化意识，通过中国登山队攀登珠峰事迹渗透家国情怀，结合任务型阅读（如信息扫描、段落匹配）提升词汇与阅读技能。设置“Think and Talk”“小组讨论”等活动，培养学生分析与解决问题的思维品质，帮助学生提升综合语言运用能力，教师可依托分层任务（必做与选做）高效开展差异化教学。

Unit 4 The Wonders of Nature Section B 1a-2c Reading＆Vocabulary in use Learning Objectives To acquire and correctly read the core vocabulary related to adventure and mountain climbing; master the corresponding relationship between words and their antonyms, including below, common, risky, survive, deep and recognize the usage of “how + adjective/adverb” in special questions, pronounce them accurately and understand their meanings. To understand the significance and value of human exploration of nature; combine their own experiences and understanding, and identify with the positive qualities of courage, determination and perseverance through group discussion and sharing . To extract and sort out key information about the process of climbing Mount Everest, summarize the main idea of each paragraph, judge the authenticity of information by using reading strategies such as skimming, scanning and careful reading. Watch and Say What is the video about? Free Talk What do you know about Mount Qomolangma? Tell a partner. 1a It is 8848.86 metres high. It is the highest mountain in the world. It lies on the eastern border of China and Nepal. /nɪˈpɔːl/尼泊尔 It ... Watch and Answer What did they do? They reached the top of Mount Qomolangma. Would you like to know more details about their climbing to the top of Mount Qomolangma? Let’s read an article together. Read and Find 1. __________: what climbers called the way up the northern side of the mountain 2. ___________: the distance between the Second Step and sea level 3. _______________: when the first Chinese team reached the top of Qomolangma 4. _______: when the second Chinese team reached the top of Qomolangma 5. ______________: the height of Qomolangma in 2020 Scan the article to find the information below. 1b Scanning You can read a text quickly to find specific information, such as numbers, years, names, and places. Numbers and years are usually in Arabic numerals, while names and places usually start with capital letters. Death Road 8,600 metres On 25 May 1960 In 1975 8,848.86 metres Read and Match Read the article and match the main ideas with each paragraph. Part 1 ① ② ③ ④ ⑤ Part 2 Part 3 Difficulties and dangers of climbing Qomolangma Achievements of China’s Qomolangma climbing teams Reasons for people risking lives to climb Qomolangma Tip: We can get the main idea of each paragrah by the first or the last sentence in each paragragh . Read and Answer Read Para. 1 (difficulties) and answer the questions. To most people, Mount Qomolangma is one of the greatest wonders of the world. On the highest place on earth, you will feel like you are able to touch the sky. But only the best climbers reach the top, and that is only if they survive the terrible conditions first. On the mountain, temperatures can fall to -30 degrees. Climbers must also deal with thin air, high cliffs, and changeable weather. They feel like they are able to touch the sky. 1. How do people feel on the top of Mount Qomolangma? 对大多数人来说 be able to do sth 能够做某事 处理,应对 /ˈklaɪmə(r)/ 攀登者 /səˈvaɪv/ 生存,存活 /klɪf/ 悬崖,峭壁 /ˈtʃeɪndʒəbl/ 常变的 /dɪˈɡriː/ 度数,程度 /kənˈdɪʃn/条件 2. Why is it difficult to climb Qomolangma? Because on the mountain, temperatures can fall to -30 degrees. Climbers must also deal with thin air, high cliffs, and changeable weather. Read and Answer Read Para. 2 (dangers) and answer the questions. Before1960, no one was able to reach the top of Qomolangma from the northern side. Mountain climbers even called that way the “DeathRoad”, but a Chinese climbing team was determined to make the climb. Because it is dangerous and before 1960, no one was able to reach the top of Qomolangma from the northern side. 1. Why did climbers call that way the “Death Road”? 2. What was the Chinese climbing team determined to do? They were determined to climb Qomolangma from the northern side. /dɪˈtɜːmɪnd/ 坚决的 Read and Complete On 24 May 1960, climbers Liu Lianman, Wang Fuzhou, Qu Yinhua, and Gong Bu arrived at the Second Step. It was 8,600 metres above sea level. People said it was so high that even birds could not reach it. Liu allowed his teammates to step on his shoulders. Bit by bit, the climbers pulled themselves up, and they made it past the Second Step. At 4:20 a.m. On 25 May, the Chinese national flag flew above the world's highest mountain for the first time. In 1975, another Chinese team climbed to the top of Qomolangma to do research. This time, they brought a ladder to the Second Step. Until 2007, almost all climbers from the northern side used this"Chinese Ladder" to reach the top much faster. In 2020, a third team returned to Qomolangma to measure its height—8,848.86 metres. On 24 May 1960, Chinese climbers _________ the Second Step. On 25 May, the Chinese national flag flew above the world’s highest mountain _______________. In 1975, another Chinese team climbed to the top of Qomolangma to ___________. Until 2007, almost all climbers from the northern side used this “ ______________ ” to reach the top much _____. In 2020, a third team returned to Qomolangma to ________________ — 8,848.86 metres. arrived at for the first time do research Chinese Ladder faster measure its height Read Para. 3-4 (achievements)and complete the blanks. Read Para. 5 (reasons)and answer the questions. Read and Answer Climbing Qomolangma is dangerous. Some climbers reach the top successfully,but many fail. Why do people still risk their lives to climb the highest mountain inthe world? It is because human curiosity and ambition cannot be stopped. Or, as the English explorer George Mallory put it, it is simply “because it's there” ! 1. Why do people risk their lives to climb Qomolangma? Because human curiosity and ambition cannot be stopped or simply because the mountain is there. 2. What do you think George Mallory meant by “ because it’s there ” ? He meant that human curiosity and ambition drive people to climb it simply for its existence. /ˌkjʊəriˈɒsəti/ 好奇心 /æmˈbɪʃn/ 野心,抱负 as sb put(s) it 正如某人所说 1d Read and Circle Read again. Circle T for true or F for false. Then correct the false statements. 1. A few climbers reached the top of Qomolangma from the northern side before 1960. 2. In 1960, Liu Lianman’s teammates used a ladder to get past the Second Step . 3. The Chinese brought a national flag to the top of Qomolangma in 1960. 4. The “Chinese Ladder” was placed at 8600 metres above sea level. 5. Climbers first started to use the “Chinese Ladder” in 2007. T F T T T T F F F F in 1975 No one Liu Lianman allowed his teammates to step on his shoulders. Bit by bit, the climbers pulled themselves up, and made it pass the Second Step. Think and Talk 1. How do you think the Chinese climbers felt when they placed the national flag on top of Qomolangma? They felt great pride and achievement when placing the national flag on the top of Qomolangma. / ... 2. What qualities do you think a good mountain climber needs to have? They felt great pride and achievement when placing the national flag on the top of Qomolangma. / ... When we face the "Qomolangma" in our life, we should be determined, keep trying, and work hard to overcome difficulties. Even if we meet hard conditions, we should move step by step and never lose hope. / ... 3. What should we do if we face the "Mount Qomolangma" in our lives? My friend is interested in mountain climbing. He wants to join the activity of climbing Qomolangma which organized by our National Geographic. Could you make a tip list for him? Sample Tip 1: Know more about.... Tip 2: He should... Tip 3: He had better... Tip 4: ... Discuss and Share Discuss in groups and share your ideas. Read and Learn Language Points 1. On the highest place on earth, you will feel like you are able to touch the sky. 在地球的最高点，你会感觉仿佛能够触摸到天空。 feel like意为“感觉像/好像是”，还可意为“想要”，后可接名词(短语)、动词-ing形式。 eg: I feel like a cup of tea/dring a cup of tea. 我想要一杯茶/喝一杯茶。 2. But only the best climbers reach the top, and that is only if they survive the terrible conditions first. 但只有最优秀的登山者才能登顶，而且前提是他们首先要能在恶劣的条件下生存。 only if 引导条件状语从句，表示“ 只有在......的情况下”，强调条件的“ 唯一性 ”，后面接“ 真实条件 ”，常用倒装句。 eg: Only if we take a taxi will we catch the train. 我们只有乘出租车才能赶上火车。 3. ...but a Chinese climbing team was determined to make the climb. ...但一支中国登山队决心进行这次攀登。 be determined to do sth 下定决心做某事 Read and Learn 4. Bit by bit, the climbers pulled themselves up, and they made it past the Second Step. 登山者们一点一点地向上爬，最终成功越过了“第二台阶”。 bit by bit 意为“一点一点地”，同义表达为little by little或gradually。 pull oneself up意为“奋力站起来/爬起来”，同义表达为little by little或gradually。 5. Why do people still risk their lives to climb the highest mountain in the world? eg: I feel like a cup of tea/dring a cup of tea. 我想要一杯茶/喝一杯茶。 为什么人们仍然要冒着生命危险去攀登世界最高峰？ risk one’s life to do sth 意为“冒着生命危险做某事”，此处risk为动词。risk作名词时意为“风险”,“do sth at the risk of one’s life”也意为“冒着生命危险做某事”。 6. Or, as the English explorer George Mallory put it, it is simply “because it's there” ! 或者，正如英国探险家乔治.马洛里所说，只是“因为山就在那里”！ as sb put(s) it 正如某人所说 eg: As my teacher puts it, practice makes perfect. 正如我老师所说，熟能生巧。 After exploring Mount Qomolangma, let’s move on to our next stop — Lake Baikal /leɪk baɪˈkɑːl/贝加尔湖 Can you tell the Chinese meanings of the following words and choose some words that can be used to describe Lake Baikal? Think and Choose below　　 　 top common　 　northern low　　　 risky dead　　 survive safe bottom　 living southern high above die unusual 在......下面 顶部 常见的 北方的 低的 /ˈrɪski/有危险的 死的 生存,存活 安全的 底部 活的 /ˈsʌðən/南方的 高的 在......上面 死亡 不寻常的 注：答案不唯一 2a Look and Match Match the words on the left with their opposites on the right. 1.____ below　　　5. ____ top 2.____ common　 6. ____ northern 3.____ low　　　　7. ____ risky 4.____ dead　　　 8. ____ survive A. safe　　　 E. unusual B. bottom　　 F. living C. southern　 G. high D. above　　 H. die D E G F B C A H There are some Baikal seals swimming freely below the ice. Think and Say What do you know about Lake Baikal? Lake Baikal is the deepest freshwater lake in the world. ... What else would you like to know about Lake Baikal? Read the examples and make more sentences using how and the words in the box. 2b Read and Write 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　low　fast　soon 1. _______________________________ How long is the coastline of the lake? 海/湖岸线 2. _______________________________ 3. _______________________________ How high are the mountains around the lake? How deep is Lake Baikal ? 4. _______________________________ 5. _______________________________ 6. _______________________________ How low is the water level of Lake Baikal in winter? How fast can the Baikal seal swim under the ice? How soon can we reach the bottom of the lake? Our trip to Lake Baikal is coming to an end. Can you help me finish the scientific record below? Complete the passage with the correct forms of the words in the box. 2c Read and Complete deep　environment 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 ___________. Today, the lake still attracts many curious travellers. After all, it is a great natural _______! /ləʊˈkeɪtɪd/ 位于 /saɪˈbɪəriə/ 西伯利亚 /ˈfreʃwɔːtə(r)/ 淡水 /ˈbeldʒəm/ 比利时 /taɪp/ 种类 /əˈtrækt/ 吸引 /ˈkjʊəriəs/ 好奇的 /ˈtrævlə(r)/ 旅行者 /ˈnætʃrəl/ 自然的 deepest dive surface survive environment wonder Summary Our trip today is over. What did you learn from it? key vocabularies and sentences Reading skills skimming scanning... “how+adj/adv” 特殊疑问句 Reasons for exploring nature Teacher’s Words Don’t let your ______ control you. Try to calm down. The more we explore, the more we learn. Nature opens our eyes and warms our hearts. Basic(必做) 复习并牢记本堂课的重点单词、短语和句型。 Improving(选做) 绘制思维导图复述人类攀登珠穆朗玛峰的原因、困难、危险、成就和意义。 Extend(必做) 利用网络资源搜寻国内外的自然景观以及人们探索这些景观的原因并在班级分享。 Homework Thank you! 温馨提示： 备用照片，大家可根据不同年份替换使用。 $