Matching Pairs AllusionsOnline version Allusions by Cynthia Cox 1 Pearls Before Swine 2 All That Glitters is not Gold 3 Crocodile Tears 4 Thirty Pieces of Silver 5 Sound and Fury 6 Sirens 7 Crossing the Rubicon 8 Gordian Knot 9 Ivory Tower 10 Betrayed with a Kiss 11 Once in a Blue Moon 12 Achilles Heel 13 Sacred Cow 14 Pound of Flesh 15 Mrs. Grundy 16 Read the Riot Act An attitude of narrow-minded prudishness something which appears valuable on the outside may in fact be less than valuable; appearances can be deceptive To take an irreversible step, often involving some danger To issue a stern warning that if unacceptable behavior does not cease, severe consequences will follow. To show false sympathy A person who is secluded or protected from the real world and thus out of touch with reality Anything that tempts someone away from safety and towards a dangerous path Something that cannot be interfered with or harmed in any way refers to a great, tumultuous, and passionate uproar that is actually unimportant or meaningless a supposed friend's treachery payment received for an act of treachery to offer something precious to someone who are unable to appreciate the value of what is given Something that happens rarely Any extremely complex problem Describes someone's insistence on being paid, even if repayment will destroy the debtor A vulnerability or point of weakness