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《Warming up、Pre-reading、Reading、Comprehending》精品PPT课件优质课下载
1.What it was to become was uncertain.
2.It was not immediately obvious that water was to be fundamental to the development of life.
3.Why the dinosaurs suddenly disappeared still remains a mystery.
1.What it was to become was uncertain.
随后它会变成什么没人能确定。
2.It was not immediately obvious that water was to be fundamental to the development of life.
水对生命的发展会起关键作用，这一点在当时并不明显。
3.Why the dinosaurs suddenly disappeared still remains a mystery.
恐龙为什么会突然灭绝至今仍是个谜。
Translation
1.他是否能来还不确定。
2.锻炼对身体健康起关键作用，这一点是很明显的。
3.在那之后，琥珀屋的去向就成了一个谜。
Man had evolved from apes.
solar energy
plant trees
recycle rubbish
prevent desertification
save water
purify air
Whether life will continue on the earth depends on human beings.
Only if we care will we help,
Only if we help shall all be saved!
The other puzzles hidden the passage are:
Why did water stay on the earth but not on the other planets?