One afternoon, I went into an art museum. While I was ____ for my friend, I saw a young couple (夫妻). The woman was ____ the paintings. The man was quiet all the time. I .thought the man was very nice because nobody would like to be bothered (被打扰) ____ enjoying the paintings.

    I met them a few ____ as I moved through the different rooms of the art museum. Each time I heard the woman talking, I moved away ____

    I was paying for some ____ at the museum shop when the couple walked slowly to the exit (出口). Before they left, the man ____ out a cane (拐杖). "He is a great man," the worker of the shop said. "He ____ not to change his life after his eyes got hurt. He can't see ____ now. He and his wife-come here whenever there is a new art show. "

    "But what can he get from the art? He can't see!" I said.

    "You are wrong. He sees a lot, more than you and I do," the worker said. "His wife ____ each painting so he can see it."

下列各句中，没有语病的一句是   (　　)

罗布泊使我惊讶，罗布泊像座仙湖，水面像镜子一样，在和煦的阳光下，我乘舟而行，如神仙一般。在船的不远处几只野鸭在湖面上玩耍，鱼鸥及其他小鸟欢娱地歌唱着……(斯文·赫定《亚洲腹地探险8年》)被斯文·赫定赞誉过的这片水域于20世纪70年代完全消失，罗布泊从此成了令人恐怖的地方。阅读材料，罗布泊消失的主要原因是（   ）

①全球气候变暖　②退耕还草　③盲目修建水库　④掘堤引水

下列液体中，滴入水中会出现分层现象，但在滴入热的氢氧化钠溶液中时分层现象会逐渐消失的是（不考虑有机物的挥发）（　　）