7世纪，日本与阿拉伯帝国面对社会危机，选择了独特的发展道路。阅读材料，回答问题。

材料一：大化5年（公元649年），孝德天皇召集群臣盟誓“天覆地载，帝道唯一”，并建立“置八省（指民部省、兵部省、刑部省）百官”的中央机构和地方行政机构（国、郡、里）。

——摘自华师大版九年级世界历史教科书

材料二：现在，他给它带来了一个宗教和一部天启的经典，带来了一个具有良好的组织和武装、统治了整个半岛的社会和国家。一个世纪内，他的信徒们从胜利走向胜利，建立了一个横跨欧亚大陆的强大帝国，并传播了他的教义。如今，这一宗教在世界上拥有5亿信徒。如果对事态发展的影响为标准，那么，默罕默德无疑是历史上的一位巨人。

——斯塔夫里阿诺斯《全球通史》

    Natural resources are things that we use that come from the earth. Our natural resources are limited(有限的). This means that they will not1forever. Some are renewable, like when you plant a new tree when you cut one down. Others are not renewable, like when you dig coal(煤) out of the 2Once it is used, it is gone.

    People realize the 3 that the earth's natural resources are limited, and can do things to help conserve(节约) those resources.4you try to conserve a natural resource, you try to use less of it, so it does not get used up so5One way that people conserve fuel, like gasoline, is by riding a bicycle or walking when the6is short instead of driving everywhere.

    Water is a very important natural resource because we all need it to stay 7We can conserve water8making sure that our pipes and taps do not leak(泄露). We can also make wise choices to conserve water, like only using the dishwasher or washing machine when they are full. Everyone can make contributions to protecting natural resources.