阅读理解第一句是 throughout the past century humanity did

DBCAD Throughout the past century humanity（人类）did everything in its power to control nature. We dammed earth‟s rivers, chopped down the forests and exhausted the soils. Burning up fuels, we pumped a great deal of greenhouse gasses into the air, altering the chemistry of the atmosphere and warming the planet in just a few decades. And as out population began the year 200 above the 6 billion mark, still spreading across the continents, dozens of animal and plant species were dying out every day, including the first primate（灵长类）to disappear in more than 100 years.At the start of the 21stcentury there were unmistakable signs that nature was beginning to take its revenge（报复）. Melting ice in both poles of the earth suggested that the climate was changing rapidly. Weather was even more changeable than usual, giving some places too little rain and others too much. Fires raced across the dried American West last summer, and recent storms spread damages from Britain to China. No specific event could be directly blamed on global warming, floods and drought （干旱）will be more frequent—and severe. Other sad signs from an overburdened planet include falling grain and fish harvests and fiercer （激烈的）competition for scarce water supplies.But there were also, in the year 2000, signs of great awareness. Connected by the Internet, hundreds of millions people gathered for the 30th anniversary of Earth Day. Governments from Washington to Lima took steps to protect the large wild areas from development. Progress was made toward using more renewable energy from the wind and the sun, and new cars hat used both gasoline and electricity sported （显示）fuel-economy statistics.The goal for the new century is “sustainable （可持续的）development”. Is that possible? It depends on how well we understand that humanity is part of nature, not lord and master.What is the result of the human control over the nature?A. Natural resources are being exhausted.B. There is a global warming effect.C. Species of animals and plants are reduced.D. All of the above.2. It can be inferred from the passage that scarce water supplies are directly caused by ______.A. less ice in both polesB. the more changeable weatherC. something not mentioned in the textD. the larger population3. Which of the following is true according to the passage?A. The America suffered a lot from fires last summer in the west.B. The American government tried to stop development.C. Humanity built many dams in the past century.D. Dozens of animals and plants will no longer exist in more than 100 years.4. The phrase “sustainable development” in the last paragraph probably means that economic development will ______.A. continue for a long timeB. be more profitable than beforeC. support our growing populationD. make full use of natural resources5. The main purpose of the author is to make us ______.A. see what damage humanity did to natureB. fight with nature and control itC. have more celebrations of Earth Day D. aware of the importance of environment protection