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  3. The establishment of Earth Day began with an idea proposed in October 1969 by John McConnell, a San Francisco resident. McConnel

The establishment of Earth Day began with an idea proposed in October 1969 by John McConnell, a San Francisco resident. McConnel

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问题     The establishment of Earth Day began with an idea proposed in October 1969 by John McConnell, a San Francisco resident. McConnell approached the San Francisco Board of Supervisors with a resolution to devote one day a year to public awareness dedicated to nature and the weak ecosystem that makes up it. The day’s events would emphasize the urgency of all inhabitants of the planet to take responsibility for building a healthy and ecologically sustainable planet for the present and long into the future. The board was impressed with McConnell’s idea and declared Earth Day an annual celebration to be held on March 21, the date of the vernal equinox. McConnell stated "This is the moment when night and day are equal throughout the earth — reminding us of Earth’s beautiful systems of balance which humanity has partially upset and must restore." Earth Day was established as a national day of celebration in the United States in 1970 and was embraced by the United Nations in 1971 when it declared an Earth Day ceremony to be held each year on the day of the March Equinox. When the first Earth Day was celebrated in the United States on April 22, 1970, twenty million participants nationwide took part in teach-ins, street demonstrations, and workshops in 2,000 communities and 12, 000 college and high school campuses. The major public concern at that time was industrial pollution and its effect on the air we breathe, the water we drink, and the health of the planet we live in. Those celebrations led to powerful public outcries for legislation mandating ecologically sound environmental policies and rigid controls on industrial pollution. Over the years, the issues of concern have expanded greatly into all aspects of air, water, soil, and noise pollution. Whether it comes from vehicles, factories, agriculture, housing, or private property, public concern and activism continue with citizens from around the world involved in efforts to achieve a sustainable and enduring ecosystem.
    Earth Day activities are supported and sponsored by a large network of organizations, government agencies, businesses, universities, and institutions. They work diligently each year to make Earth day events meaningful and relevant to the inhabitants of Planet Earth. The regular observance of this holiday fixes environmental values into the national consciousness and provides an opportunity to introduce environmental issues into schools, media and public events. It should be noted that Earth Day activities have been instrumental in bringing about many of the significant environmental changes that have taken place in the last three decades.
It can be concluded that______.
选项 A、many organizations and businesses suffer vast losses as a result of Earth Day campaign
B、people have learned to use Earth Day activities as instrument to acquire what they want
C、supporters work hard to make the whole nation aware of Earth Day events by publicizing them in media
D、Earth Day activities have succeeded in changing our environment over the past years
答案D
解析 推理题。从文中第二段可知，定期庆祝这个节日有助于使环境价值深入到国民意识当中，并且提供机会将环境问题引入学校、媒体和公众活动中。值得注意的是，对于过去30年来环境发生的许多显著变化，地球曰活动起了相当作用。据此可知，在过去几年里，世界地球日活动已经成功地改变了我们的环境。所以正确答案是D。
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