地球日介绍(小学英文)

地球日介绍(小学英文)
一定要是小学英文,要不然儿子看不懂.

Earth Day History and Introduction
There's a lot more to the Earth Day movement than we could cover here,but see how much you've learned with our Earth Day quiz.From the history of the holiday,the changes it's effected,and the number of people who participate annually to the changes you can make right now,put your brainpower to the test.
And if you find that you're an Earth Day pro,see how your knowledge stacks up when it comes to green celebrities,environmental history,and green vocabulary.Good luck—and Happy Earth Day!

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