摘要：A: Can you tell me something about the Earth Summit? B: Yes. It’s a meeting held by the UN to discuss e 1 issues. A: When and where was the l 2 Earth Summit held? B: In Johnnesburg in 2002. A: What was the main t 3 of the summit? B: Sustainable d 4 . A: What did e 5 from all over the world discuss in Johnnesburg. B: They discussed the three biggest k 6 in the world: contaminated drinking water, poor sanitation and air p 7 . A: What else did many speakers speak about at the meeting? B: They also spoke about poverty, war and violence. A: Why are c 8 like the Earth Summit important? B: Because they help us understand that there exist serious p 9 facing the earth and that only by c 10 the way we live can we save the earth.

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