基础段-猴爪（原著版第19集-跟读版）

At the foot of the stairs the match went out, and he paused to strike another, and at the same moment a knock, so quiet and stealthy as to be scarcely audible, sounded on the front door.

The matches fell from his hand. He stood motionless, his breath suspendeduntil the knock was repeated. Then he turned and fled swiftly back to his room, and closed the door behind him. A third knock sounded through the house.

"What's that?" cried the old woman, starting up.
"A rat," said the old man, in shaking tones--"a rat. It passed me on the stairs."

His wife sat up in bed listening. A loud knock resounded through the house.

"It's Herbert!" she screamed. "It's Herbert!"