①紫鹊界梯田培育着厚重悠长的瑶族文化。②湖南隆回县虎形山花瑶是唯一一支保持完全最古老风俗的瑶族，他们依然过着农耕火种的原始生活，且保持了与世无争、勤劳质朴的传统。

第①句中，词语搭配不当，应将“____”改为“____”。 

第②句语序不当，应将“____”与“____”互换位置。

完形填空

　Do you like playing the piano? Now there is a  1  in Sydney called “Play Me, I'm Yours”. People can 2  the piano in many places for free(免费). In addition to(除了……之外)letting people enjoy beautiful music, the programme  3  helps them communicate(交流)with each other better.

People have placed thirty pianos in  4  parts of the city. People can  5  the words “Play Me, I’m Yours” on each piano. People can play music  6  sing songs to the pianos. Many people stop to  7 or play happily.

Now lots of people are  8  in front of computers and busy with their work all day and they have no time to enjoy  9  . So the programme is to help them relax and make  10  friends.

用托盘天平测量物体的质量．测量过程中向右移动游码的作用相当于（　　）