构词法___前缀__2012年小学英语词汇教学策略_上课课件_-_副本.pptVIP

1 Negative prefixes(1) Word-Formation 1. Affixes：Prefixes and suffixes Negative prefixes Un-: (the opposite of , not, added to adjectives or participles) Unwise, unfair, uninteresting, unharmful, unexpected 3.1 Negative prefixes(2) Word-Formation 1. Negative prefixes non-: (not, added to adjectives, verbs or nouns) nonessential, nonsmoker, nonfiction 3.1 Negative prefixes(3) Word-Formation 1. Negative prefixes Dis-: (not, added to adjectives, verbs or abstract nouns) disloyal, disobey, dislike, disorder, dishonesty, dishonor 3.1 Negative prefixes(4) 3.1 Negative prefixes(5) 3.1 Negative prefixes(6) 3.1 Negative prefixes(7) Word-Formation 1. Negative prefixes In-: (il-before [ l ], im-before [ m ][ p ] [ b ], ir-before [ r ] not, added to adjectives , impolite, improper, illogical, irregular 3.1 Negative prefixes 3.2 Reversative prefixes(1) 3.2 Reversative prefixes(2) Word-Formation 1. Negative prefixes Un- de- (meaning the reverse of the action, a removal of something) Undo, untie, unwrap, decode, 3.2 Reversative prefixes 3.3 Pejorative prefixes(1) Word-Formation 1. Negative prefixes mis-(meaning ‘wrongly’, ‘badly’, ‘not’, added to verbs, participles or nouns) misplace, mistrust 3.3 Pejorative prefixes(2) Word-Formation 1. Negative prefixes mal-(meaning ‘badly’, ‘bad’, added to verbs, participles or nouns) maltreat, malfunction 3.3 Pejorative prefixes(3) Word-Formation 1. Negative prefixes pseudo-(meaning ‘false’, or ‘imitation’, added to nouns and adjectives) pseudo-science, pseudointellectual 3.3 Pejorative prefixes 3.4 Prefixes of degree or size(1) Word-Formation prefixes of degree, size and location arch-(meaning ‘supreme’, ‘highest’, ‘worst’, added to human nouns) arch-enemy, archbishop, arch-fascist 3.4 Prefixes of degree or size(2) Word-Formation prefixes of degree, size and location super-(meaning ‘above’, ‘more than’, ‘better’, added to nouns and adjectives) superman, supermarket