2. 外语
  3. In 1963, former Senator Gaylord Nelson began to worry about our planet. Senator Nelson knew that our world was getting【S1】______

In 1963, former Senator Gaylord Nelson began to worry about our planet. Senator Nelson knew that our world was getting【S1】______

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问题     In 1963, former Senator Gaylord Nelson began to worry about our planet. Senator Nelson knew that our world was getting【S1】______and that many of our plants and animals were【S2】______. He【S3】______why more people weren’t trying to solve these problems. He talked to other lawmakers and to the President. They decided that the President would go around the country and tell people about these【S4】______.He did, but still not enough people were working on the problem.
    Then, in 1969, Senator Nelson had【S5】______idea. He decided to have a special day to teach everyone about the things that needed changing in our【S6】______. He wrote letters to all of the colleges and put a special article in Scholastic Magazine to tell them about the【S7】______day he had planned. (Most of the schools got this magazine and he knew that kids would help him. )
    On April 22, 1970, the first Earth Day was held. People all over tile country made promises to help the environment. Everyone got【S8】______and since then, Earth Day has spread all over the planet. People all over the world know that there are problems we need to work on and this is our special day to look at the planet and see what needs【S9】______. Isn’t it great? One person had an idea and kept working  【S10】______everyone began working together to solve it. See what happens when people care about our world.

A) involved         B) changing           C) special          D) particularly
E) environment      F) administration     G) until            H) sponsor
I) wondered         J) concerns           K) additional       L) universal
M) dirty            N) dying              O) another
【S1】
选项
答案M
解析 文章在讨论世界的环境问题，提到了环境在恶化。因此从待选词汇中看，dirty填在此处最合适。
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大学英语四级

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