在反比例函数y=$\frac{k-1}{x}$的图象的每一条曲线上，y都随x的增大而减小，则k的取值范围是（　　）

 利用海水提取粗盐的过程如图所示，回答有关问题．

随着升学考的来临，我们的初中生活也即将结束。三年的初中生涯，总有一些难以忘怀的时刻。仔细阅读以下四段材料，从A、B、C、D中选择一个合适的标题。并完成（2）小题

    ①    

     Hello, I'm Tom. I remember at one time, when we were running on the playground, I was too tired to go on. As I wanted to give up, some of my classmates cheered me up. My classmates' encouragements helped me finish the run. I'll never forget it.

    ②    

     Hello, I'm Mary. When I was in Grade Two, I didn't prepare well for an English contest. I said sorry to my teacher. He said: “Any opportunity is important. You should never give it up easily.” Later on, I made good use of every opportunity. I'll never forget him.

    ③    

     Hi, I'm Lucy. The time I traveled to Qingdao with my classmates was the most unforgettable experience. We swam in the sea and caught crabs (螃蟹) on the beach. We played games and enjoyed the beautiful scenery. I will never forget that trip.

     ④   

     Hi, I'm Jim. I took part in the red song competition with my classmates last year. Every day, we rehearsed(排练) very hard in order to get a good result. Because of our hard work, we achieved a good result in the competition.

1900年，蔡元培写了一则征婚启事：“1．女子须不缠足者；……4．男死后，女可再嫁；5．夫妇如不相合可离婚。”这反映出近代中国出现的社会新习俗有（       ）

①恋爱自由，婚姻开始自主 ②离婚、再婚十分频繁 ③妇女解放，男女平等 ④提倡天足，反对缠足