中国文化历来有“温良恭俭让”的美德，“孔融让梨”的故事家喻户晓。现代教育中，看到更多的却是孩童校内舞台争妍竞上，课外培训“百般武艺”，透着“不让”的自信。

体育世界，中国曾有“为大局让球，为友谊让球”的风气和争议，也有今日“争强不让，放手一搏”的公平和奋进。

现实生活，有车流交汇，因一车“不让”而拥堵数里的陋习；也有职场竞聘，让位一步而错失先机的懊悔。

对此，你的观点是什么？写一篇论述类的文章加以阐述。

注意：①角度自选，立意自定。②题目自拟。③不得少于800字。④不得抄袭、套作。

    If someone is lost in a forest( 森林 ), he needs only study the trees around him carefully to find his way. On this half of the earth, he will find that the side of the tree with the most leaves and branches(树枝 ) is the south side. Also, by checking the tops of the trees, he will find that they lean(倾斜 ) to the south too.
    Another sign( 标志物) for him to know where he is going is found in the bark.( 树皮) That is brighter on the south side.The remanining(树桩 ) of a cut tree is also a finder, for its rings can give him another sign. The rings will be thinner on the south side and thicker on the north side.
One more sign: some very small plants grow at the foot of a tree and they point to the north.

小明和小朋友们聊天，他说：“老师教学生是天经地义的事，他们才不辛苦呢。”（    ）

如果∠α是等腰直角三角形的一个锐角，则cosα的值是（）