阅读下面的材料，从中选择一个角度构思立意，自拟题目，写一篇文章。可叙述经历，可抒发情感，可发表议论。

       初三（1）班的黑板报设置了“今人今语”栏目，下面是其中的三则语录：

       站在父亲的肩膀上，让我在医学研究的道路上起点很高且少走了很多弯路。——布鲁斯·巴特勒（美国免疫学家、遗传学家，2011年诺贝尔医学奖获得者）

       幸福其实很简单，可能就是太简单了，就总是忽略到看不见。——李冰冰新浪博客

       排列好青春历程的每一个音符，每一个脚印，每一次心跳，为自己做一次庄严的检阅。——赵冬《检阅自己的青春》

       【注意】①题目自拟，立意自定。②除诗歌外，文体自选。③不得抄袭、套作。④文中不得出现你所在学校的校名，以及教职工、同学和本人的真实姓名。

增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1.每处错误及其修改均仅限一词；2.只允许修改10处，多者（从第11处起）不计分。

    Last Saturday I went to the Great Wall with some of my friends.In our way up,we saw many volunteers working in the sun.They helped the elders with their bags,took photo for some tourists and answered people's questions.Because they were very tired,they didn't stop to have a rest.Just at the moment,we saw a little boy standing alone,cried.We went over and asked what is the matter.From his answer we knew he couldn't find her mother.We told him not to worry and then we tried to get in the touch with his mother with the phone number he had given us. Twenty minutes late,his mother turned up,and thanked us again and again.That day we enjoyed the beauty of the Great Wall,and felt the warm of the society.If everyone can reach out helping to others,the world will be more harmonious.

影响气候的因素主要有____因素、____因素、____因素等。