Humanity has only one home – the Earth. But it isn't exclusively ours. We share our beautiful planet – this stunning blue marble – with millions of other species and our existence is intertwined with theirs. For the sake of all living things， we must ensure a healthy and thriving planet.
来源：【中国教育报】今天是第55个世界地球日今年的主题为“珍爱地球，人与自然和谐共生”保护我们赖以生存的地球是每一个人的责任现在也要把这份责任感传递给孩子们与地球有关的冷知识有哪些？如何教孩子保护地球？有关地球的纪录片有哪些？
EarthDay.org suggests that every household take time this Earth Day to perform a plastic audit， which involves counting how many plastic containers， wraps， bottles and bags are purchased for at-home use. It may surprise you how many you use until you start counting!
3) protect 保护 跟 against， 表示 防止，防御，against 以防，制止，阻止，例如，Exercise will not only lower blood pressure but possibly protect against heart attacks.
The friendly environment laid a sound foundation for people to live a happy life and keep them in good health， for which their dream came true. Some should succeed in creating the pleasant environment， so are people happening to know that this environment is considered as being important for them to live a comfortable life.
So in the last two or three years， the Chinese camping industry enjoyed explosive growth. Last year， the growth rate reached nearly 20 percent!
allow sb / sth to do sth:People aren’t allowed to eat food on the underground in Nanjing.在南京，地铁上禁止人们吃东西。
