Yesterday evening, when I went to town with my 1, we met a strange old man. It was raining 2and we had no umbrella. We were trying to get into a taxi when he came up to us. He was carrying a nice 3 and he said he would give it to 4 for only one pound.  He said he had 5 his wallet and he needed taxi fare(费用) to go back home. My mother didn't believe 6 he said at first, and asked him a lot questions. but she finally believed the man and gave him a pound. She was 7 to buy a good umbrella for so little. but the old man didn't get into a taxi. We followed him and found he went into a pub(酒吧) and bought 8a glass of whiskey(威士忌) with a pound. 9he drank it, he put on his hat and took one of the many wet umbrellas there and went off with the new one. Soon after that, he 10 it again.

依次填入下列各句横线处的成语，最恰当的一组是（   ）

①张老师接手我们班的语文课后，针对班上同学语文水平_________的现状，讲课时分层指导，同学们进步很快。

②在网络文学极大丰富着人们文化生活的同时，我们也要看到，网络文学存在_________的现象，不少网络文学作品缺乏积极的社会意义，格调低俗。

③每逢“五一”“十一”，许多大学生喜欢外出游玩，但他们面对旅游服务从业人员_________的状况，缺乏必要的自我保护意识，利益受损事件频发。

水沸腾过程中水的温度____(选填：“升高”、“下降”或“不变”)，该过程水____(选填：“吸热”、“放热”或“不吸热也不放热”)。标准大气压下，酒精的熔点是－117℃、沸点是78℃；水银的熔点是－39℃、沸点是357℃。你认为要测沸水的温度应选用____(选填“酒精”或“水银”)温度计。