根据汉语提示或背诵段落课文内容填短语
(1)Measures are being taken to________the city________(防御)attack.
(2)In most places around the world,________ one’s ________ ________(背对) someone shows anger.
(3)The most universal ________ ________ is, of course, the smile.
(4)Its function is to show happiness and ________ people ________ ________.
(5)There are unhappy smiles, such as when someone “________ ________” and smiles to hide it.