名词单数变复数七上用.pptVIP

名词单数变复数歌诀 ?(一)??规则变化????? 名词单数变复数，直接加?-s?占多数； ??s,?x,??ch,?sh?来结尾，直接加上?-es；????? 词尾若是?f?或?fe，加?-s?之前先变?ve；???? ?辅母?+?y?在词尾，把?y?变?i?再加?-es；??? ??词尾字母若是?o，常用三个已足够，?? ???要加?-es?请记好，hero,?tomato,?potato。?????????? ?(二)??不规则变化???? ?男人女人?a?变?e，鹅足牙?oo?变?ee；????? 老鼠虱婆也好记，ous?变?ic；???? ?孩子加上?ren，鱼鹿绵羊不用变 给下列可数名词加复数． bird-- card-- lady-- orange-- ruler-- photo-- friend-- boy-- watch-- girl-- case-- cat-- wife-- tree-- key-- bed-- hero-- family- dictionary-- question-- leaf-- party-- cup-- birds ladies oranges rulers cats boys girls cases wives watches trees keys questions beds heroes friends families dictionaries photos cards leaves parties cups 综合练习三 families knives books beds wolves buses shelves zoos potatoes cities photos leaf piano box tomato brush watch bag cat radio boy strawberry leaves pianos boxes tomatoes brushes watches bags cats radios boys strawberries family knife book bed wolf bus shelf zoo potato city photo 句子单数变复数 This is a book. That is an eraser. It is a red apple. I am a boy. He / She is a teacher. What’s this ? These are books. Those are erasers. They are red apples. We are boys. They are teachers. What’re these ? 复数句子变单数句子 These are dictionaries. 单数 一般疑问句,并作肯定回答 划线提问 This is a dictionary. Are these dictionaries ? Yes, they are. What are these ? * * 名词单数变复数 What’s this in English? It’s an apple. What are these? T