1、,pencil,This is one pencil.,pencils,These are many pencils .,chair,This is a chair .,chairs,These are many chairs .,girl,girls,apple,an,apples,hat,hats,box,This is a box .,boxes,These are many boxes .,bus,This is a bus .,buses,These are three buses.,tomato,This is a tomato .,tomatoes,These are many
2、tomatoes.,potato,This is a potato .,potatoes,These are many potatoes.,photo,photo,photo,This is a photo.,photos,These are many photos.,Lesson10 How Many Are There ?,pencil-pencils chair-chairs,box-boxes,bus-buses,tomato-tomatoespotato- potatoes,以x,s,o结尾的可数名词的复数形式一般在其后加es,一般在可数名词后直接加s,photo-photos,注意
3、：以o结尾的有生命在其后加es,无生命的在其后加s,比一比，练一练,写出下面可数名词的复数形式。1.book( ) 2. egg( ) 3.class( ) 4. bus( ) 5.watch( ) 6. fox( ) 7.dish( ) 8. fish( ),拓展知识,1.以s,x,sh,ch,o结尾的可数名词的复数形式通常在其后加es.如class,bus,fox,dish,watch等注意：有生命的以o结尾的可数名词复数形式在其后加es,无生命的以o结尾的可数名词复数形式在其后加s. 如：negro (黑人) hero（英雄）potato(土豆)tomato（西红柿）后加es . 而radio(收音机)photo(照片)后加s2.以辅音字母加y结尾的变y为i然后再加es.如family（家庭）families,strawberry（草莓）strawberries 等3.以f，fe结尾的变f，fe为v,然后再加es如wolf（狼）wolves,wife（妻子）wives,knife（小刀）knives等4.不规则形式man-men ,child-children 等,
