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必修3《Warming up、Pre-reading、Reading、Comprehending》PPT课件优质课下载
1. How old is the universe?
2. How old is the earth?
3. Which is the first creature or plants on earth?
Several billion years ago.
Between 4.5 and 3.8 million years ago.
Very small air-breathing creatures.
Where do we live?
Where is the Earth?
Mercury
水星
Venus
金星
Mars
火星
Jupiter
木星
Saturn
土星
Neptune
海王星
Uranus
天王星
The solar system
[?m?:kj?ri]
['vin?s]