Many people believe that you'll have GOOD luck …
if you find a four-leaf clover.
if you find a houreshoes.
If you give a new pair of shoes to a poor person.
Many people believe that you'll have BAD luck …
if a black cat walks in front of you.
if you walk under a ladder.
if you open an umbrella in your home.
If you put your shoes on a table.
Here are some other superstitions:
if your right eye itches, you'll laugh soon.
if your left eye itches, you'll cry soon.
if your right ear itches, somebody is saying good things about you.
if your left ear itches, somebody is saying bad things about you.
if a knife falls, a man will visit soon.
if a fork falls, a woman will visit soon.
if a spoon falls, a baby will visit soon.
if you break a mirror, you'll have bad luck for seven years.
摘自 Step by Step 英语教程