夜雪白居易

已讶衾枕冷，复见窗户明。

夜深知雪重，时闻折竹声。

小李和小刘是好朋友。小李的数学很好，经常帮小刘学数学。一次期中考试，小刘的数学成绩获得了全班第一，而小李考得不太理想。当小刘在向小李请教问题时，小李说：“你都考第一了，还来问我，我不会。”小刘对小李说：“我的成绩是在你的帮助下才取得的。你一次没考好不算什么，以后我们一起努力。”在小刘的劝导下，小李想通了，他们相互帮助，共同努力，共同考起了本地的重点高中。这说明（   ）

①合作是件美好的事情，可以实现双方的共赢

②合作可以让我们养成团结互助，友善待人的良好品质

③合作可以避免竞争，解决一切难题

④合作可以赋予我们力量

我国的许多名言名句中蕴含着丰富的哲理。下列名言名句与其所蕴含的哲理对应正确的是（   ）。

①无所不备，则无所不寡----集中力量抓主要矛盾

②尽信书，则不如无书—－发挥科学理论的指导作用

③见贤思齐焉，见不贤而内自省也—－正确发挥意识的能动作用

④九仞之积，犹亏一篑之功——要坚信前途是光明的，准备走曲折的路

    Every year on April 22, People all over the world celebrate Earth Day. It is a time to work to keep our earth clean. People plan projects to clean up the land, air and water.
    U.S. Senator Gaylord Nelson first thought of the idea for Earth Day in 1962 when he saw polluted rivers and cities with smoke. He needed to get support from Americans to clean up the earth. Finally, on April 22, 1970, 20 million Americans celebrated the first Earth Day! Now many countries around the world celebrate it, and you can, too.
How can you celebrate Earth Day? Here are a few ideas:
Join a clean-up project------Clean up your street or a favorite beach.
Save energy------Turn off the lights when you leave a room, and use public transportation.
Use less water.
Reduce(减少)/ Reuse/ Recycle ------ Practice the three Rs: First, reduce how much you use. Then reuse or recycle what you can.
You can make a difference on Earth Day and every day!