A

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.

补写出下列句子中的空缺部分。

①《诗经·氓》中“____，____”两句，通过叶子衰败的景象预示不如意的事情就要发生。

②《师说》中，韩愈指出“____，____”不是他所说的能传授道理、解答疑难问题的老师。

③李商隐《无题（相见时难别亦难）》中“____，____”一联，以想象手法来写对方的相思之苦。

下列有关物质的性质和该性质的应用均正确的是（　　）