综合填空根据短文内容在每个空格内填写一个英语单词。所填单词的第一个字母必须与空格内所给的字母一致，不得改动 (本题共10分，每个空格1分。本题成绩供参考用，不计入总分)

How does sound travel through air? This is a question that often p_(1)_ people. The answer isn’t h_(2)_ to find if you have ever o_(3)_ waves on a river or sea.

T_(4)_ a stone into a pool and see what happens. Try to i_(5)_ what will take place when someone shouts or makes a loud n_(6)_, and you can get an i_(7)_ of the movement of sound.

The study of sound is one of the things that physics d_(8)_ with. Physics may seem terribly dry and c_(9)_ at times, but a good teacher can make it both i_(10)_ and simple.