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CLASSIFICATION OF PREFIXES In general, prefixes in English have three groups of meaning: Negative meaning Reversal or repetition of an action Space and time relationship... Unlucky[r]
(1)WELCOME TO OUR ENGLISH CLASS TODAY! (2) AFFIXATION • Definition: Affixation is the formation of new words with the help of affixes AFFIXATION Prefixation Suffixation (3) PREFIXATION • Definition: is an affix attached to the beginning of a word base of phrase and serving to produce a derivation or an inflectional form (4) Examples: • (to) -(to) redo • (to) like - (to) unlike • Happy - unhappy • Polite - impolite • Standard - substandard (5) CLASSIFICATION OF PREFIXES In general, prefixes in English have three groups of meaning: Negative meaning Reversal or repetition of an action Space and time relationship (6) Prefixes Meaning Examples Un, dis, Negation non-, mis-, in-, illim-, ir- Unlucky, dishonest, incorrect, illegal, impolite… (7) Prefixes Meaning Un- ,dis-, re- Examples Reversal Unlock, or redo, repetition disconnect , retell (8) Prefixes Meaning Examples Pre-, post, Space and Prewar, fore-, over, time postwar, super relationship foresee, oversleep, supermarke t (9) It is worthy of note that “in, un” rather stranger distributed Sometimes they are interchangeably used Examples: Infrequent - unfrequented Instable - unstable Immovable - unmovable (10) Sometimes they “compete” with each other - inability • Unable - injustice • Unjust • Undecided - indecision (11) Add the prefixes from the box to the terms: il- im- in- ir• 1, …active 3, …articulate 5, …artificial 7,…consistency 2,…legal 4,…legitimate 6,…mature 8,…mobilize (12) THANKS FOR YOUR ATTENTION (13)