七年级（上册）仁爱英语U1T3名词单数变复数.ppt

people people 人们 你，愿意超越吗? There are four _______ (potato) on the table. potatoes My sister has three ________(knife). knives Do you have any _______(hobby)? hobbies They are ________ (policeman). policemen A lot of ____ (fish) are swimming in the water. fish Sum up: 1.一般情况下,直接在名词词尾加-s. 2.以s,x,sh,ch结尾的名词,在词尾加-es. 3.以辅音字母加y结尾的名词，要变y为i再加-es. 5.以f或 fe结尾的名词，先将f或 fe变为v,再加-es. 6.以o结尾的名词,表示无生命事物的名词加-s, 表示有生命事物的名词加-es。 4.以“元音字母+y”结尾的名词，直接在词尾加-s . 可数名词变复数不规则总结 1.单复数同形 2.oo-ee 3.a-e 4.以en结尾 5.固定用法，如mouse-mice I-we he/she-they 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 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 are these ? 知识回顾Knowledge Review * * maps eggs cars --What are those ? --They’re /They are… . 单数 复数 可数名词 如　何　变　化？ 规则变化 不规则变化 规则变化 1.一般情况下，直接在词尾加-s构成复数形式。 car backpack cars backpacks book books 1. name pen card ruler names pens cards rulers box 2. 以s, x, ch, sh等结尾的名词， 在词尾加-es构成复数形式。 boxes class classes watch watches brush brushes s x sh ch 2. bus buses foxes fox (狐狸) dish (盘子) dishes 3. 以“辅音字母+y”结尾的名词，应改y为i，再加-es。 family families comedies comedy (喜剧) y y l d 3. 4. 以“元音字母+y”结尾的名词，直接在词尾加-s构成复数形式 。 boy boys day days o a y y 4. key cities strawberries keys city (城市) strawberry (草莓) 5. 以f或fe结尾的名词，先将f或fe