初中英语外研版八年级下Unit2We have not found life on any other s y.ppt
初中英语外研版版八年级下 Module3 Journey to space Unit 2 We have not found life on any other s yet. Review 1 Presentation 2 Language Points 3 earth moon Review Review 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. 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 plants yet . Presentation Presentation
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