一、单数变复数：
classroom-window-light-
picture-computer-floor-
wall-teacher’sdesk-
schoolbag-door-fan-
cake-name-storybook-
toy-kite-candy-
notebook-blackboard-
key-picture-shoe-
glass-bag-
二、用括号里的词的正确形式填空。
ihavetwo(candy),three(key),some
(toy),some(storybook)anda(panda)inmy(schoolbag)。
可数名词变复数形式的规则
1一般情况英语单复数句子，在词尾加-s.
desk---desksgirl---girls
boy---boyspen---pens
2以-s,-x,-ch,-sh结尾的词英语单复数句子，在词尾加--es
bus---busesbox--boxes
brush--brusheswatch--watches
3以辅音字母加-y结尾的词英语单复数句子，变y为i英语单复数句子，加-es
baby-babiesfamily--families
4以-f或-fe结尾的词英语单复数句子，变f或fe为v，再加-es
knife---knives刀leaf---leaves树叶
5以辅音字母加-o结尾的词，一般情况下，在词尾加-es
tomato---tomatoespotato--potatoes
6可数名词变为复数形式的不规则变化如下：
foot---feetmouse---miceman---men
woman---womenchild---children
Chinese--Chinesedeer---deer
sheep---sheepfish---fish
●名词单数变复数练习
box_________pencil____________watch_______
star__________door________flower________
window_________bag_________book________
dog____________cat__________tree_________people_______girl_____________man_________
woman___________policeman______tooth_____
doctor_________teacher__________child_________
class________student__________eye________
ear_________photo_______map___________
desk__________half_________bird_________
wolf________family________sheep________
baby_______bus_________cloth________
key________tomato__________mouse_______
dish_________eraser_________apple__________