Unit 7 Section 1-Listening课件 2025-2026学年沪教版英语八年级下册

该初中英语课件围绕“太空垃圾”主题，系统呈现其定义、类型、危害及应对措施。课堂导入通过热身问题激活宇航员太空挑战的旧知，预听环节结合图片观察和主题预测，搭建从已知到未知的学习支架，引导学生逐步深入听力内容。 其亮点在于以听力技能培养为主线，通过预测主旨、匹配结构、细节捕捉等策略提升语言能力，听后小组讨论解决方案锻炼思维品质，分层作业设计发展学习能力。例如预听猜测讲座主题、听力中问题与关键词匹配，帮助学生掌握科学听力方法，教师可直接使用完整教学流程提升课堂效率。

Unit 7 Space exploration 沪教牛津版八年级下册 Why is space junk a problem? Key question 主题范畴： 人与自然；人与社会 Listening Let’s review Think: What problems do astronauts face during space missions? Share your ideas with your partner. Warm up Examples: ① Astronauts must stick their sleeping bags to the wall. ② If astronauts do not exercise regularly, they will get very weak. ③ ... Look at the picture and think: ① What can you see in the picture？ ② What problem do you think this lesson will be about? Is it a big problem? Space junk. I think it could be a big problem because... You will listen to a lecture about space junk. Can you guess which topics the speaker will mention? What is space junk?​ Where does it come from?​ Why is it a big problem?​ What can we do about it?​ Pre-listening Pre-listening satellite destroy space junk n. 人造卫星 v. 摧毁 太空垃圾 New words Before listening, go through the listening material and guess what you are going to listen to. First listening, catch the main idea of the listening material. Second listening, try to write down the word and figure very quickly, then check. Listening skills 5 1. Listen for the gist—check your predictions Tick the things mentioned in the lecture. What is space junk?​  Where does it come from?​  Why is it a big problem?​  What can we do about it? ​  √ √ √ Listening The main idea of the lecture: What space junk is and why it is a big problem to us. 2. Match the sections with key words—build the structure ① What is space junk?​ ​ ② What types of space junk are there?​ ③ Why is space junk a big problem?​ A. The dangers of space junk B. The definition of space junk C. Examples of space junk 3 Listen again and choose the correct answers. Note that there can be more than oneanswer to a question. (1) Which of the following can be space junk? a astronauts’ gloves b broken satellites c parts of rockets (2) Why can tiny pieces of space junk destroy spacecraft and satellites? a Because spacecraft and satellites travel very fast. b Because most pieces of space junk are man-made objects. c Because the amount of space junk is growing fast. (3) What problems can space junk cause? a It may fall back to the Earth and hurt people. b It may make space missions dangerous c It may hit satellites and spacecraft in orbit. Tip: Read the questions before you listen. Try to connect the questions to the topics of the different parts of the lecture. Pay attention to key words from the questions (e.g. gloves, satellites, rockets) while you listen to the lecture. Which part do these questions refer to? A. Definition B. Types of space junk C. Dangers of space junk A & B C C 3 Listen again and choose the correct answers. Note that there can be more than oneanswer to a question. (1) Which of the following can be space junk? a astronauts’ gloves b broken satellites c parts of rockets (2) Why can tiny pieces of space junk destroy spacecraft and satellites? a Because spacecraft and satellites travel very fast. b Because most pieces of space junk are man-made objects. c Because the amount of space junk is growing fast. (3) What problems can space junk cause? a It may fall back to the Earth and hurt people. b It may make space missions dangerous c It may hit satellites and spacecraft in orbit. Space junk Definition __________ in space, (e.g. parts of old __________) Types of space junk __________ that stopped working and couldn’t be brought back things dropped by __________ during the spacewalk (e.g. cameras, __________, tool bags) Dangers of space junk can __________ a spacecraft or satellite creates more junk in __________ can make space missions very __________, and even make space travel __________ Detailed listening: Listen again and complete the notes. unwanted objects rockets satellites astronauts gloves destroy orbit dangerous impossible There are tens of thousands of man-made objects in orbit around the Earth. Many of them are useful things, like space stations and weather satellites. However, people have left lots of unwanted objects in space too, such as parts of old rockets. These objects are known as space junk. Since the 1950s, people have sent over 10,000 satellites into space. Many of these satellites have stopped working, but they are still in orbit because it is too expensive to bring them back to the Earth. Astronauts have also dropped things during their spacewalks, such as cameras, gloves and tool bags. These objects continue to orbit the Earth as space junk. Audio script Space junk is a big problem, and it is getting worse. Every year, we send more and more things into orbit, and this means more and more space junk in orbit too. Most pieces of space junk are very small, but they can still be very dangerous. Objects in orbit, such as satellites and spacecraft, are all travelling very, very fast. This means a small piece of space junk can destroy a spacecraft or satellite. When this happens, the spacecraft or satellite is broken up into hundreds of pieces, and there will be even more space junk in orbit. Scientists are very worried about space junk because it can make space missions very dangerous. If there is too much space junk in orbit, it will become impossible to travel into space. Countries around the world need to work together to solve this difficult problem. What can we do to solve the problem of space junk? Discuss in pairs. Post-listening Can satellites be recycled? Are there ways to make this easier? Should there be laws about cleaning up space junk? Can astronauts do anything to avoid dropping things during spacewalks? Can we build machines that can collect space junk? Come up with solutions to the problem. Give a summary of the lecture. Use the notes below to help you. Post-listening Solutions Build machines that can collect space junk, ... 03 双语学习报 More practice 16 Because it is too expensive to bring them back to the Earth. They are still very dangerous. It very become impossible to travel into space. 17 Why are scientists very worried about space junk? Can a small piece of space junk destroy a spacecraft. fall back to made dangerous 18 “双减”背景下，作业如何合理分层 19 ⭐可参考作业布置如下： Samples: 基础作业 拓展作业 1.熟悉听力训练的技巧； 2.整理抄写Listening听力原文的单词和重点句型； 登录WWW.EKWING.COM ，完成一套听力作业； Homework 20 THANKS 21 Blues 117633.055 $