2017-2018学年外研版八年级英语下册课件：Module 3 Unit 2 (共44张PPT)

earth moon spaceship astronaut space travel Scientists have sent spaceship to Mars. The journey has taken several months. Astronauts have already been to the moon. No one has been to Mars yet, because Mars is very far away, much farther than the moon. Lots of scientists are working hard in order to send astronauts to Mars one day. Look at the picture and talk about what you know about Chinese spaceships. Shenzhou-9 is a manned spaceship. 1229.unknown Read the passage and choose the best title for it. 1. Anyone out there? 2. Life on the earth 3. The sun and other stars 4. The stars at night √ 1. The earth is a star. 2. The sun is a star. 3. There is more than one galaxy in the universe. Check (√) the true sentences. × √ √ 4. The light from the stars in other galaxies has travelled for a long time to reach us. 5. Scientists have received many messages from space. 6. Spaceships have visited most of the universe. √ × × Compl