Module3 Unit2 课件 2022-2023学年外研版英语八年级下册

Unit 2 We have not found life on any other planets yet. Module 3 Journey to space 1 词汇: none, environment, that, solar system, group, galaxy, universe, light, impossible, out, communicate 语法： 在现在完成时中准确使用 already, just, yet 能够识别文章的主题。 能够读懂以太空为主题 的简单文章并能识别 细节，做出正确判断。 培养学生对天文知识的 兴趣和对未知事物的探 索精神。 学习目标 2 Enjoy a video. 神州九号载人航天飞船点火发射成功 3 1 Work in pairs. Look at the picture and talk about what you know about Chinese spaceships. Shenzhou-9 is a manned spaceship. 4 神州九号发射四大亮点 5 神州九号航天员乘组 6 我国航天任务示意图 7 1. How many planets are there in the universe? 2. Is there any life on other planets? Discussion 8 Scientists have sent a spaceship to Mars. The journey has taken several months. Look at the sentences 9 Astronauts have already been to the moon. Look at the sentences 10 No one has been to Mars yet, because Mars is very far away, much farther than the moon. Look at the sentences 11 Lots of scientists are working hard in order to send astronauts to Mars one day. Look at the sentences 12 Learning to learn When you read a passage with a title and pictures, think about the words you may find in the passage, and the questions you may want to ask before you start to read. 13 Scientists think that there has been life on the earth for hundreds of millions of years. However, we have not found life on any other planets yet. The earth is a planet and it goes around the sun. Seven other planets also go around the sun. None of them has an environment like that of the earth, so scientists do not think they will find life on them. The sun and its planets are called the solar system, and our solar system is a small part of a much larger group of stars and planets, called the Galaxy or the Milky Way. There are billions of stars in the Galaxy, and our sun is only one of them. 2 Read the passage and choose the best title for it. Skimming 14 Scientists have also discovered many other galaxies in the universe. They are very far away and their light has to travel for many ye