Unit 4 The Wonders of Nature Section A 1a-2d 课件 2025-2026学年人教版英语八年级上册

Unit 4 The Wonders of Nature Section A (1a-2d) 学 习 目 标 In this unit ,you will 1. talk about geography facts about natural wonders . 2. compare facts about famous places . 3. share geography facts using large numbers . 4. explore how and why people conncet with nature . What natural wonders do you know ? Do you know the name of the waterfall in the photo ? 1a Match the places with the pictures. ____Nile River ____Angel Falls ____Mount Qomolangma ____Dead Sea ____Sahara Desert ____Mariana Trench 尼罗河 安赫尔瀑布 珠穆朗玛峰 死海 撒哈拉沙漠 马里亚纳海沟 F D A C E B Listen to the game show . Complete the descriptions of the places. 1b Place Description Measurement Mount Qomolangma the____________________i n the world ___________metres high Sahara Desert the____________________in the world about___________square kilometres in size Dead Sea the____________________on earth ___________metres below sea level Mariana Trench the____________________in the ocean about____________metres deep highest mountain biggest desert lowest place deepest point Listen again.Complete the measurements in 1b with the numbers below 1b Place Description Measurement Mount Qomolangma the____________________i n the world ___________metres high Sahara Desert the____________________in the world about___________square kilometres in size Dead Sea the____________________on earth ___________metres below sea level Mariana Trench the____________________in the ocean about____________metres deep 8,848.86 9,000,000 416 11,000 Tapescripts 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? FuXing: It's Mount Qomolangma! Host: Correct!How high is it? LiuHongyu: I know this—it's 8,848.43 metres high. Host: No,sorry.FuXing? FuXing: Is it8,848.86 metres? Host: Yes!But some scientists say Qomolangma is still growing taller! Now,name the biggest desert in the world. FuXing: The TaklimakanDesert? Host: Wrong!Ella? Ella: It's 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? LiuHongyu: 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? FuXing: It's in the Mariana Trench. Host: That's correct!How deep is it? FuXing: It's about 11,000 metres deep. Host: Correct! 欢迎来到 尽快 世界上 平方公里 地球上 做得好 长度的表达方法 long (adj. 长的）→ length (n. 长度） 这个课桌三米长。 ①The desk is three meters long. ②This is a three-meter-long desk. ③The desk is three meters in length. ④The length of the desk is three meters. 宽度的表达方法 wide (adj. 宽的) → width (n. 宽度) 这条河五米宽。 ①The river is five meters wide. ②This is a five-meter-wide river. ③The river is five meters in width. ④The width of the river is five meters. .高度的表达方法 high (adj. 高的) → height (n. 高度) 这座墙四米高。 ①The wall is four meters high. ②This is a four-meter-high wall. ③The wall is four meters in height. ④The height of the wall is four meters. 深度的表达方法 deep (adj. 深的) → depth (n. 深度) 这个洞六米深。 ①The hole is six meters deep. ②This is a six-meter-deep hole. ③The hole is six meters in depth. ④The depth of the hole is six meters. 重量的表达方法 heavy (adj. 重的) → weight (n. 重量) 这块石头十公斤重。 ①The stone weighs ten kilograms.  ②This is a ten-kilogram stone. ③The stone is ten kilograms in weight. ④The weight of the stone is ten kilograms. 1d Talk about the places you have learnt about What's the lowest place on earth? It's... How low is it ? Its surface is ... metres below sea level. the surface of ....的表面 on the surface 从表面看 What do you know about the deep sea?Complete the sentences with the information from the picture. 2a Ocean depth 1. Fendouzhe reached ______ 2. The deep sea begins _____ 3. The Titanic rests at ______ 4. A whale can dive to ______ A B C D A class is asking a deep-sea researcher some questions after his talk. Listen and tick the topics they discuss. 2b 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 √ √ √ Listen again.Complete the sentences with the facts from the conversation 2c 1.People still don't know much about the ____________. 2.In________,China's Fendouzhe dived into the deep sea and __________it. 3.Some animals have unusuala bilities.Some are______but can“______”.Some can even create their own__________. 4.There is rubbish even at__________metres deep. ocean floor 2020 filmed blind see light 11,000 潜入 Ms Gao: Thank you for the wonderful talk,Mr Jones.Now,does anyone have any questions? Emma: I do!Why are so many countries researching the deep sea? Mr Jones: Well,curiosity is one reason.We don't know enough about the ocean floor. Fu Xing: I remember that in 2020,China's Fendouzhe dived deeper into the Mariana Trench than many other submersibles in the world and filmed it.But I didn't see any deep-sea animals.What are they like? Mr Jones: Well,many deep-sea animals are large and unusual.Some animals are blind,but they can"see"as well as others.Some even create their own light! Peter: Cool!Are there any other surprising facts about the deep sea? Mr Jones: Did you know that there's rubbish even at 11,000 metres deep? That shocked many people. Ms Gao: That's terrible!We should do something about it. Mr Jones: You're right! 感谢你的 宾语从句 和...一样 Read the questions and think of more you would like to ask the deep researcher .Research the answers.Then ask and answer the questions with a partner 2d •What is the largest shark in the deep sea? Rhincodon typus •What is the bottom of the deep sea like? ...的底部 To truly understand our planet, we must explore the oceans which cover most of it. Opponents may be concerned, but sea exploration is important for our future. For example, scientific research ships can help address important issues such as climate change. We need to understand what is happening to our planet so that we can take action. Therefore, more research is necessary. 为了真正了解我们的星球，我们必须探索覆盖其表面大部分的海洋。反对者也许会忧心忡忡，但是海洋探索对我们的未来十分重要。例如，科学考察船可以帮助应对像气候变化这种重要的问题。我们需要了解我们的星球正在发生什么，这样我们オ能采取行动。因此，有必要开展更多的研究。 Why is it important to research the deep sea? 根据首字母提示或括号里的汉语提示写出单词 1. The Great Pyramid is an ancient ___________(奇观) of the world . 2. We need exact ___________(测量） to build the model correctly . 3. The forest park is about 12 s______k______in size . 4. The volley lies b_________the mountain . 5. The water l____________in the lake is rising after the rain . 6. The ___________(表面） of the moon is not smooth. 7. The __________(深度） of this well is over 30 meters . 8. He wants to r___________in the red sea to see the coral . 9. She is doing r________on how researchto clean ocean plastic . 10. A large v_________brought food to the remote island . wonder measurement quare ilometers elow evel surface depth esearch esearch essel Homework 1, 熟读新词汇并默写四会单词 2，练习册本节课练习题 3，复述课文 $