根据句子意思及汉语提示，写出所缺单词。

小题1:Take the      (第二) turning on your right and you’ll see the museum.

小题2:Her      (声音) sounds sweet on the phone.

小题3:I was      (写) a report when the doorbell rang.

小题4:There is no plant life      (没有) lightning.

小题5:When you get home, give a call to let me know you’ve      (到达) safely.

非均匀量化的实质是什么？