Earth Day 61 (found) in 1970 as a day of education about environmental problems, and Earth Day 20 occurs on Wednesday, April。

60、22the holidays 50th anniversary. The holiday is now a global celebration thats sometimes extended into Earth Week, a full seven days of 62 (event) focused on green living. 63 (elect) to theU.S. Senate（参议院）in 1962, Senator Gaylord Nelson was determined to convince the federal government that the plan 。

61、et was 64 risk. In 1969, Nelson developed the idea forEarth Dayafter 65 (inspire) by the anti-Vietnam War“teach-ins” that were taking place on college campuses around the United States. Denis Hayes, a young activist 66 had served as student president at Stanford University, was selected as Earth Day 。

62、s national coordinator（协调者）, and he worked with 67 army of student volunteers and several staff members from Nelsons Senate office 68 (organize) the project. The first Earth Day was effective at raising 69 (aware) about environmental problems and transforming public attitudes. Earth Day kicked off the “Environmental decade with a bang,” as Senator Nelso 。

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标题：重庆市|重庆市第一中学2020-2021学年高二英语下学期期中试题( 五 )