牛津译林版高中英语模块二Unit3 Word power 共30张PPT

Word power Teacher: Uint 3 Amazing people a singer a writer a dancer a cleaner a fire fighter What do these words have in common? “writer” “singer” “teacher” “dancer” “fire fighter” They are all end with . “-er” What does “-er” stand for(代表) in word formation(构词)? suffix . It’s a What is suffix used for? To form different words. Question1 How to use suffixes to form different words? Shortly(简言之): a word + a suffix = a different word. Question2 Suffix: a letter or a group of letters added to the end of a word to form a different word Brainstorm Think of as many jobs as possible! Suffixes Examples Exercises -er teach teacher -or act actor -ant assist assistant -ent study student -ist type typist think thinker edit editor serve servant preside president tour Add suffixes to verbs to form nouns Rule1 tourist Add suffixes to nouns to form nouns Rule2 Suffixes Examples