The researchers stress that the environmental effects of meeting future food demand depend on how global agriculture expands and develops.
?Our analyses show that we can save most of the Earth’s remaining ecosystems by helping the poorer nations of the world feed themselves,” Tilman said.
1. What is the best title of this passage?
A. The World Will Need Double Food by 2050
B. Man Will Face the Risk of Lacking Food in the Future
C. Future Farmers Hold Environment’s Fate in Their Hands
D. Different Farming Methods Produce Significantly Different Yields
2. The character of the extensive farming is ________.
A. very cost-effective
B. to produce more crops per acre
C. at cost of more new land to produce more food
D. very environmentally friendly
3. It can be inferred from the passage that ________.
A. poorer nations mainly use the intensive farming
B. wealthy nations mainly use the extensive farming
C. the intensive farming needs less food producers
D. the extensive farming has a worse effect on ecosystems
4. According to the passage, the underlined word “they” in the 7th paragraph refers to “________”.
A. poorer nations
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