2014年亚运会在韩国仁川举行．要想查找韩国在哪里，应该查阅（　　）

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When I drove to work yesterday, I met a traffic jam（交通阻塞）.As I looked out of my window, a young man was walking on the street. He was walking to the bridge. There were some homeless men with their cups around there. The young man went to one of them. He brought out some money, said a few words to him and put the money into his cup. He continued（继续）to walk and then saw another homeless man. He stopped for a minute, said a few words and then gave the man a candy.

And then he saw the next homeless man. He was shivering（冷得发抖）because of coldness. The young man now stopped and gave his scarf to him. He then said goodbye to him with a big smile and went away in the snow.

At that moment, I was in tears（流泪）.I gave this young man my best wishes with love and blessings.

阅读下面的材料，根据要求写一篇不少于800字的文章。

    在上海地铁上，一男子因随地吐痰遭到指责后，竟不停地用污言秽语和指责他的乘客对骂，一黑衣壮汉忍不住，拨开人群走到“吐痰男”跟前踢去一脚，吐痰男顿时安静下来，一语不发，此时，有出来劝架的乘客指责“黑衣男”：“打人是不对的。”更多的人则认可黑衣男的做法。这段视频被上传到网络后，引起更大范围、更多角度的讨论。

对于以上事情你怎么看？请你就其中某一个或某一群人的表现，表明你的态度，阐述你的看法。要求综合材料内容及含意，选好角度，确定立意，明确文体，标题自拟，完成写作任务。

小华在校园的池塘边采集了标本甲蜻蜒和标本乙睡莲叶，带到实验室，利用显微镜、解剖刀等工具进行一些实验．请回答下列问题：