阅读短文，根据短文内容和首字母提示写出文中所缺单词。
Do you like music? Probably. But do you like all kinds of music? Want to say no? Well, before answering this q{#blank#}1{#/blank#}, you'd better have a good understanding of what music is. A music teacher wanted to tell his students the difference b{#blank#}2{#/blank#} music and noise (噪音). He brought many wooden blocks (大 块) of different sizes to class. The students were very s{#blank#}3{#/blank#} to see him throw the blocks at the wall. Everyone thought it was noise. He then took the same blocks and threw them at the wall a{#blank#}4{#/blank#}. This time, however, he threw them in a special order (次序). The students quickly found it was a tune (曲 子). "So," asked the teacher, "what is music?" The answer is that it's organized noise.
