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Some other professors share the same teaching philosophy.

Direct experience is what students truly need.

Programs for recycling plastic bottles have not been successful because the bottled water companies have tried hard to prevent them.【试题选项缺失，请补充】

The bottled water industry has problems, but it is governments, not bottled water, that should be blamed for global water problems.【试题选项缺失，请补充】

It is necessary to deal with the water crisis so that drinkable tap water will be in continuous, abundant supply.【试题选项缺失，请补充】

Bottled water is an issue complicated by its political, environmental, economic and psychological impact.【试题选项缺失，请补充】

People around the world consume bottled water four times the amount consumed in the U.S.【试题选项缺失，请补充】

When we choose bottled water, we actually have neglected the fact that people in poor countries have no access to safe and clean water for survival.【试题选项缺失，请补充】

The advertisements used by the bottled water companies have the purpose of causing fear of contaminated tap water in people who then have to choose their product.【试题选项缺失，请补充】

Bottled water is, in fact, an issue of water access and disease prevention for children in many countries.【试题选项缺失，请补充】

The bottled water companies defend themselves by arguing that they are responding to water problems instead of causing them.【试题选项缺失，请补充】

News stories and advertisements have a strong influence on our choice of bottled water over tap water.【试题选项缺失，请补充】

Every time man uses water, it sets off a widening effect that has consequences few people understand. But we can no longer afford to ignore our impact on water supplies. We must accept the new reality and adapt (适应). The good news is that water is renewable: Humans may pollute it, overuse it, or allow it to evaporate (蒸发) into the hot sky, but we cannot destroy water. The challenge is to learn how to manage the earth’s limited supply more efficiently and sustainably. The bad news is that people usually resist change until a crisis is underway. In the 1930s, Americans ignored warnings about drought and poor farming practices until the Dust Bowl drove 2.5 million people off the Great Plains. For decades, more warnings about water pollution were ignored, until the Cuyahoga River, polluted from industrial waste buildup, caught fire in 1969. Even in the first decade of this century, Americans still continued to ignore warnings that they were polluting and draining important supplies such as the Colorado River, the Everglades, the Great Lakes, the Mississippi, and the Sacramento Delta. Today, water scarcity, population growth, and environmental damage have combined to force the kind of awareness that the United States has not seen in forty years. In the 1970s, the American environmental movement forced the passage of the Clean Water Act and the Safe Drinking Water Act, and the founding of the Environmental Protection Agency. Thus began a remarkable period of collective action when Americans, for the first time, agreed on the need to protect the nation’s water supply. Nearly half a century after the Clean Water Act was signed in 1972, America and the world face a second significant period in which our actions, and inactions, will have serious consequences for water supplies for years to come. There are plenty of suggestions, and sharp disagreements, over how to respond. One camp favors building up water supplies by increasing the nation’s reservoirs (水库), canals, and pipelines. Another group favors a new water ethic (伦理) built on the opposite approach: conserving existing water supplies and limiting new demand through efficient technologies, strict control, price incentives (激励), and broad public education.

What water crisis did the U.S. have in the 1930s?

What caused the Cuyahoga River fire, according to the passage?

A remarkable period began in the 1970s when ______.

What is the difference between the two camps in their suggested solutions to the water problem?

What is the water problem facing one quarter of India’s population?

In addition to the climate, the author thinks another major cause of India’s water problem is ______.

What do we learn about the report by the National Aeronautics and Space Administration?

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