英语词汇knock knock的起源、历史背景-英语词源词典

knock, knock! First recorded in about 1936, this appears to have originally been an American catchphrase used by someone about to tell a dirty story. Then it came into use by someone en- tering a room without knocking. Perhaps it is from the old schoolboy joke “Knock! Knock! Who’s there? Grandpa. Whad- dya want . . .” But one writer claims it may come from the Por- ter’s scene in Macbeth (Act II. Scene iii): “Knock, knock, knock! Who’s there . . . Knock, knock! Who’s there, in the other devil’s name . . . Knock, knock, knock! Who’s there? . . . Knock, knock! Never at quiet! . . .”

词汇	knock knock
词源	knock, knock! First recorded in about 1936, this appears to have originally been an American catchphrase used by someone about to tell a dirty story. Then it came into use by someone en- tering a room without knocking. Perhaps it is from the old schoolboy joke “Knock! Knock! Who’s there? Grandpa. Whad- dya want . . .” But one writer claims it may come from the Por- ter’s scene in Macbeth (Act II. Scene iii): “Knock, knock, knock! Who’s there . . . Knock, knock! Who’s there, in the other devil’s name . . . Knock, knock, knock! Who’s there? . . . Knock, knock! Never at quiet! . . .”
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