The suffix –ance or –ence can be added to some verbs to form nouns meaning the act of doing something or something that is done.
allow + -ance →allowance endure + -ance →endurance
refer + -ence →reference prefer + -ence →preference
appear + -ance →appearance
attend + -ance →attendance
hinder + -ance →hindrance
utter + -ance →utterance
maintain + -ance →maintenance
accept + -ance →acceptance
perform + -ance →performance
resist + -ance →resistance
occur + -ence →occurerence
exist + -ence →existence
①She had an outward appearance of calm, but deep down she was really
worried.
②Someone’s utterance are the things that they say.
③We have an average attendance of an audience of 4,000 per game.
④He would be more of a hinderance than a help to us.
⑤The rule says that maintainance of peace and quiet is cecessary in a
hospital.
⑥Evidence shows that the girl had made resistance before she was killed.
⑦We are going to watch the evening performance a 8 o’clock this Firday.
⑧Environmental pollution threatens the existence of wild animals.
⑨The chirman of the department felt it difficult to cope with complaints that
seemed to be an everyday occurrence.
⑩In his acceptance speech for the Nobel Prize, he stressed the inner conflict of man.
Some nouns and adjectives can be joined by a hyphen “-” to form adjectives. iron-rich health-conscious
waterproof防水的waist-deep齐腰深的ice-cold冰冷的
snow-white雪白的world-famous举世闻名的carefree轻松愉快的
①To meet a(n) world-famous singer who does not sing in opera is surprising
enough, but to be told by this singer that she will never sing in opera is fairly staggering(令人震惊的)。

②The water was ice-cold and my hands turned completely blue.
③Her shoeless feet contrast with her perfectly-kept snow-white hair and
color-coordinated blouse and shorts.
④Cars are built using waterproof glass to enable them to stand the rainy
weather.
⑤In rainy seasons, this small river could become wasit-deep and thus
dangerous for small children.
⑥It is important for an aged man to stay carefree in order to live a long life.。