Unit 5 Looking into nature Listening and speaking 课件 2025-2026学年外研版八年级英语下册

该初中英语课件围绕“自然奥秘”主题，通过视频展示黑洞、尼斯湖水怪等自然现象导入，以亚马逊沸腾的河流为核心载体，衔接听力理解、对话练习、可能性讨论及单词重音学习，构建循序渐进的学习支架。 其亮点在于融合语言能力与思维品质培养，听力环节通过抓核心词、地点特征等技巧提升信息提取能力，对话与可能性讨论用“Perhaps”“It could be”等表达锻炼口语与逻辑推断，语音部分区分名动同形词重音规则。学生能提升综合语言运用与探究兴趣，教师可高效开展互动教学。

Looking into nature 5 Unit Listening and speaking Nature is full of secrets. They are waiting to be explained. What secrets can you see in the video? black holes the beginning of the universe the Loch Ness Monster Bigfoot Which of the secrets interests you most? What do these secrets awaken? Our curiosity. What do they drive scientists to do? To better understand the wonders around us. Now let's listen to a passage to get another natural secret. Now a guide is guiding a group of tourists to travel another secret of nature. Let's listen to what he said. Listen to the talk and choose the correct topic. a A disappearing river in South America b The life of the people in the Amazon rainforest c A boiling river in the Amazon rainforest Tips: 听前先看选项，抓核心词； 听时重点捕捉: ① 地点与对象：是 river 还是 people？ ② 核心特征词：比如hot, boiling等。 ③ 开头主旨句：说话人第一句话往往点明主题。 1 Now let's listen again to learn more details about it. 沸腾的 What is it? It is a boiling river as hot as ¹ ______ °C. What do the local people do with it? - They ² ______ with it. - They clean with it. - They make ³ ______ with it. - They sometimes go swimming in it,  but only after ⁴ ______. What’s the speaker’s opinion? It’s one of the most ⁵ __________________ of the rainforest. 86 cook tea heavy rain amazing wonders 2. Listen again and complete the profile. Tips: 听前看空的“前后词”，猜词性； 听时重点捕捉： ① 与预测匹配的词：听到数字、 动词、名词要特别敏感。 ② 按顺序听：题目顺序通常与录音信息顺序一致。 ③ 注意连接词：如 and, also, sometimes, but 后面常跟重要信息。 Tom: Hi Amy! Do you know the boiling river in the rainforest? Amy: A boiling river? Is it very hot? Tom: Yes! Its water is nearly ... It is really hot. Amy: Wow! What do the local people do with it? Tom:  Local people use it to ... Amy: That’s amazing! Where is this special river? Tom: It’s ... It is a wonderful natural wonder. Amy: I want to learn more about it! Tom: Me too!I want to know why it is so hot. Make a dialogue with your partner. Do you know why the river is so hot? Some people guess that's because of sunlight volcano special chemicals But different people have different ideas. Now let's listen to what they said. The ancient people’s idea is possible. There’s much ¹__________. It’s unlikely for the sun to ²_______________ that much. Perhaps the river passes a volcano and ³_____________? That’s not the reason. The nearest volcano is about ⁴___________________ away. Maybe there are some chemicals ⁵__________. They can ⁶__________ heat. That’s ⁷__________, but scientists haven’t found any yet. More ⁸__________ is needed. Tourists' ideas The guide's opinions 3 Listen to the conversation and complete the table. produce in the water possible research sunshine heat the river becomes hot 700 kilometres Listening for opinions Phrases such as I think, I believe and I guess show people's opinions. Remember: people are sharing their ideas, so you don't have to agree. But you should listen to the other person's opinions and be polite. Learning to learn The ancient people’s idea is possible. There’s much ¹__________. It’s unlikely for the sun to ²_______________ that much. Perhaps the river passes a volcano and ³_____________? That’s not the reason. The nearest volcano is about ⁴___________________ away. Maybe there are some chemicals ⁵__________. They can ⁶__________ heat. That’s ⁷__________, but scientists haven’t found any yet. More ⁸__________ is needed. Tourists' ideas The guide's opinions 3 produce in the water possible research sunshine heat the river becomes hot 700 kilometres Talking about possibilities Could, may and might are used to talk about possibilities. Words such as maybe and perhaps are used, too. We can also use the structure It's certain / likely / possible that... Learning to learn Listen again. Then talk about how the speaker discusses possibilities. Act out the dialogue. Guide: Ancient people here thought that the sun makes the river hot. Boy: It's possible, right? There's a lot of sunshine here. Guide: Actually, it's unlikely for the sun to heat the river that much. Just think of outdoor swimming pools. Would the water get to 86°C in summer? Girl: You're right. But how about volcanoes? Perhaps the river passes a volcano and becomes hot? Guide: Good guess! But I'm afraid that's not the reason. The nearest volcano is about 700 kilometres away. Girl: I have another idea! Maybe there are some chemicals in the water. They can produce heat. I've studied them at school. Guide: That's possible. But scientists haven't found such chemicals in the river yet. They need to do more research… Read clearly , loudly, correctly. Now let's enjoy two unsolved secrets of nature and talk about possible explanations. A:Have you heard of...? B:Yes, it's very strange. I'm curious about the possible reasons. A:Perhaps it's because... Crop circles Atlantis 1. It was an ancient city under the  sea. Reason: A big disaster sank it. 2. A volcano destroyed it. Reason: Big floods covered the city. 3. It is just a story. Reason: No real proof is found. 4. It is under Antarctic ice. Reason: Earth’s plates moved it there. 1. People made them. Reason: They used tools to draw the  patterns. 2. Strong winds caused them. Reason: Special winds push the  wheat down. 3. Aliens left them. Reason: Some think UFOs made the strange marks. Now let's enjoy two unsolved secrets of nature and talk about possible explanations. A:Have you heard of...? B:Yes, it's very strange. I'm curious about the possible reasons. A:Perhaps it's because... B:It is likely that they're caused by... A: That sounds possible! Do you have another idea? B: Well, some people say... A: Yeah, that's not very likely. There's a chance that scientists will find the real reason later! Crop circles 1. People made them. Reason: They used tools to  draw the patterns. 2. Strong winds caused them. Reason: Special winds push  the wheat down. 3. Aliens left them. Reason: Some think UFOs  made strange marks. Now let's enjoy two unsolved secrets of nature and talk about possible explanations. A:Have you heard of...? B:Yes, it's very strange. I'm curious about the possible reasons. A:Perhaps it's because... B:It is likely that they're caused by... A: That sounds possible! Do you have another idea? B: Well, some people say... A: Yeah, that's not very likely. There's a chance that scientists will find the real reason later! Atlantis 1.Reason: A big disaster sank it. 2.Reason:  A volcano destroyed it.Big floods covered the city. 3.Reason: It is just a story.  No real proof is found. First, we FOUND a mystery (the Boiling River). Then, we COLLECTED facts. Next, we DISCUSSED ideas and possibilities. Finally, we UNDERSTOOD that not all mysteries have one answer. Different guesses help science grow! A syllable has one vowel sound and only one vowel sound, and one or more consonant sounds. Syllables Improve your pronunciation for clear communication Today we'll learn Word stress. What's the connection between syllables and stress? When we say words with more than one syllable, we usually stress one of the syllables. ＊Study well and make progress every day. ＊Work on the new road is progressing slowly. 新路的修建工作在缓慢进行。 好好学习，天天向上。 n. v. Try to read the following sentences and pay attention to the words in blue. Some two-syllable words are both nouns/adjectives and verbs. When we use them as nouns/adjectives, the stress is usually on the first syllable. When we use them as verbs, the stress is usually on the second syllable. /ˈprəʊɡres/ /prəˈɡres/ Phonetics in use Stress in words (1) 重读音节用重音符号“ˈ”标出。 Phonetics in use Stress in words (1) A word can be stressed on different syllables. If we stress the second syllable, the word is usually a verb. For example, present describes the time, while present describes an action. Listen and mark the stress. Phonetics in use record a world record / record the temperature produce fresh produce / produce oxygen perfect a perfect gift / perfect her skills desert the biggest desert on earth / desert his duty As nouns/adjectives, the stress is on the first syllable. As verbs, the stress is on the second syllable. ˈ ˈ ˈ ˈ ˈ ˈ ˈ ˈ 1. Can you get basic facts about the boiling river in the Amazon? 2. Can you tell the difference between facts and people's opinions? 3. Can you use proper words and sentence patterns to talk about possibilities of an unsolved nature mystery? 4. Do you feel more curious about the secrets of nature? 5. Can you correctly pronounce two-syllable words that can be used as both nouns/adjectives and verbs? Must-do: 1. Listen and repeat the conversation about the Boiling River on page 74. Try to copy the speaker's pronunciation. 2. Make a list of useful phrases from today. Write at least 2 example sentences for each group: Giving Opinions: I think that..., In my opinion... Discussing Possibilities: Perhaps it's... , It could be... 3. Preview Reading for writing part on pages 76-79. Choose to do: Choose one natural mystery from page 73 or another one you like. Make a simple "Mystery Card" in English: 1-2 Facts (What is it?) 1-2 Guesses or Opinions (What do people say about it?) Lavf57.71.100 vid:v0369cg10004d85c9biljht2ps4chi40 null 48900.668 null 65330.836 Lavf60.16.100 vid:v0200fg10000cgt480bc77u9dvd2kbng Lavf60.16.100 vid:v0200f5b0000bn716p5ahtm6bm3crheg Lavf57.83.100 Lavf57.83.100 $