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

Unit 4 The Wonders of Nature Section B (1a~2c) To understand the article about Mount Qomolangma, master the scanning skill to find specific information, and be able to discuss questions about Mount Qomolangma and the spirit of exploration; To master the corresponding relationships between words like "below, common, risky, and etc." and their antonyms, and grasp the usage of special interrogative sentences with "how + adj/adv.". To learn new words and phrases: climber, northern, survive, condition, degree, changeable, death, above, shoulder, bit by bit, successfully, risk, curiosity, simply, risky, southern, curious, traveller, natural...; 学习目标 1 2 3 Mount Qomolangma. What is the highest mountain in the world? Free talk What do you know about Mount Qomolangma? Where is it ? How high is it? Why is it famous? Who has climbed it? What is the weather like? -30°C (colder than your freezer!) 1/3 of sea level (every breath is a fight) above 8,000m (body starts to die slowly) The Numbers Behind Qomolangma "Look at these numbers. Would you still want to climb? Why or why not?" Let's read a passage about Qomolangma. It is mainly about new exploration and achievements on Mount Qomolangma. Read the title and predict What is the article mainly about? Scanning __________: what climbers called the way up the northern side of the mountain ________________________: the distance between the Second Step and sea level _________________________: when the first Chinese team reached the top of Qomolangma ______: when the second Chinese team reached the top of Qomolangma _____________: the height of Qomolangma in 2020 Scan the article to find the information below. Death Road 8,600 metres above sea level On 25 May 1960 (at 4:20 a.m.) In 1975 8,848.86 metres 1b 1.How many Chinese climbing teams are mentioned in the article? What years did they climb? 2.According to the article, why do people risk their lives to climb Qomolangma? Three teams – 1960, 1975, and 2020 Because of human curiosity and ambition. 3.Why does the writer use so many numbers in the passage? Numbers make the passage clear, true and convincing.They show facts, time and achievements. Detail reading 4.Why do you think climbers called the northern side the “Death Road”? Find at least TWO reasons from the article. Before 1960, no one was able to reach the top from the northern side. The conditions are terrible: temperatures can fall to -30 degrees, thin air, high cliffs, and changeable weather. 5.What did Liu Lianman do to help his teammates pass the Second Step? What does this tell us about him? This tells us he was selfless, brave, and a true team player. Read the article again. Match the paragraphs with the main ideas. C. Difficulties and dangers A. Achievements of Chinese teams B. Reasons for climbing Qomolangma How is the article organized? 总分总 1c 1.A few climbers reached the top of Qomolangma from the northern side before 1960. T F 2.In 1960, Liu Lianman’s teammates used a ladder to get past the Second Step. T F 3.The Chinese team brought a national flag to the top of Qomolangma in 1960. T F 4.The “Chinese Ladder” was placed at 8,600 metres above sea level. T F 5.Climbers first started to use the "Chinese Ladder" in 2007. T F Read again. Circle T for true or F for false. Then correct the false statements. In 1960, Liu Lianman let his teammates step on his shoulders to get past the Second Step. (The ladder was brought in 1975.) Climbers started to use the “Chinese Ladder” after 1975. 1d No one reached the top from the northern side before 1960. Listen and read the article again to review. In recent years, more and more climbers have challenged themselves to climb Mount Qomolangma. Almost all climbers leave rubbish on the mountain, which affects its natural beauty and ecological balance. Deep thinking What can we do with the rubbish? Pay attention to the underlined expressions. 到达…… 能够 做研究 更快地 一点一点地 应对；处理 到达顶峰 海拔以上 as sb put it 正如某人所说 奋力向上爬 首次 allow sb to ... 允许某人…… 决心做…… 冒着生命危险去做…… 测量它的高度 攀登到…… 的顶部 (气温)降至零下30度 挺过恶劣的环境 世界最伟大的奇迹之一 除非 如此…… 以至于…… 踩在他的肩膀上 19. 冒着生命危险去做…… 20. 踩在某人的肩膀上 21. 挺过恶劣的环境 22. 世界最伟大的奇迹之一 10. 奋力向上爬 11. 首次在…… 12. 允许某人…… 13. 决心做…… 14. 测量它的高度 15. 正如某人所说 16. 如此…… 以至于…… 17. 攀登到…… 的顶部 18. (气温)降至零下 30 度 1. 到达 2. 能够 3. 做研究 4. 更快地 5. 一点一点地 6. 应对；处理 7. 到达顶峰 8. 海拔以上 9. 除非 Translate the expressions into English. arrive at be able to do research much faster bit by bit deal with reach the top above sea level as sb put it pull oneself up for the first time allow sb to ... be determined to measure its height risk one’s life to ... climb to the top of step on one’s shoulders fall to -30 degrees survive the terrible conditions one of the greatest wonders of the world only if so... that... 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 在...下面 常见的 低的 死的 顶部 北部的 存活 north south 在...上面 安全的 底部 不寻常的 活着的 高的 死去 D E G F B C A H adj.有危险的 adj.南部的 2a Vocabulary in use 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? Work with you partner, ask and answer. 2b 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 2c 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) Let’ s know more about Lake Baikal. 1. The scientists plan to ____________ on the mountain. 2. We should learn to ____________ different problems in our daily life. 3. You will ____________ finish the work if you keep trying. 4. The train will ____________ the station in five minutes. 5. He saved money ____________ to buy a new bike. arrive at be able to do research bit by bit deal with 一、从方框中选择适当的词语并用其正确形式完成句子。 arrive at　be able to　do research　bit by bit　deal with 当堂检测 1. 正如她所说，自然奇观值得探索。 _____ _____ _____ _____, natural wonders are worth exploring. 2. 老师不允许我们在课堂上使用手机。 The teacher _______ _____ ____ _____ use mobile phones in class. 3. 他们花了很长时间才到达那座高楼的顶部。 It took them a long time to _____ _____ ____ of the tall building. 4. 他冒着生命危险去救那个溺水的孩子。 He _____ _____ _____ _____ save the drowning child. 5. 你觉得他们能在沙漠的恶劣环境中生存下来吗？ Do you think they can _______ ____ _______ _________ in the desert? 二、根据汉语提示完成句子，每空一词。 As she put it doesn’t allow us to reach the top risked his life to survive the terrible conditions Homework ✍ Master the new words and expressions. ✍ Write a short passage to retell the story. Lavf59.14.100 Lavf59.14.100 Lavf59.14.100 $