1、1小学英语可数名词变复数形式的规则1 一般情况，在词尾加-s.desk-desks 书桌 girl-girls 女孩boy-boys pen-pens2 以 -s,-x,-ch,-sh 结尾的词，在词尾加-esbus-buses box-boxesbrush-brushes watch-watch3 以辅音字母加-y 结尾的词，变 y 为 i，加-esbaby-babies 婴儿 family-families 家庭4 以 -f 或-fe 结尾的词，变 f 或 fe 为 v，再加-esknife-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
2、-estomato-tomatoes 西红柿 potato-potatoes 马铃薯6 可数名词变为复数形式的不规则变化如下：foot-feet 脚 mouse-mice 老鼠 goose-geese 鹅 ox-oxen 公 牛 man-men 男人 woman-women 女人 child-children 孩子 Chinese-Chinese 中国人 deer-deer 鹿 sheep-sheep 绵羊 fish-fish 鱼2同步练习题把单数变成复数：box_ pencil_watch_ star_door_ window_bag_ bowl_book_ dog_cat_ flower_
3、-_tree_ chair_people_ girl_man_ woman_policeman_ policewoman_tooth_ goose_doctor_ teacher_child_ student_eye_ ear_photo_ map_picture_ desk_life_ leaf_half_ shelf_wolf_ bird_panda_ 3lion_fish_ deer_sheep_ candy_family_ baby_toy_ car_ bus_ cup_bottle_ lake_hill_ wall_stamp_ Chinese_festival_ mountain_
4、floor_ noodle_fruit_ dumpling_apple_ pear_vegetable_ grape_banana_ cherry_watermelon_ orange_ox_ foot_arm_ leg_necklace_ game_computer_ mouse_dish_ tomato_potato_ onion_cabbage_ 4kite_ship_ chopstick_spoon_ cloth_pant_ shirt_hat_ cap_sweater_ sock_gift_ present_lantern_ sister_brother_ light_key_ mo
5、nkey_tiger_ rabbit_snake_ animal_frog_ toad_shoe_ knife_fan_ glass_rose_ brush_bear_ son_uncle_ aunt_eraser_ plane_5口诀：单数句子变，变化规则要记住。名词代词要变化，am, is 要变 are。this, that 变成啥， these, those 来替它。he, she, it 要变啥，全部变 they 不用怕。I 要变 we 莫落下，名词后面把 s/es 加。名前冠词去掉它，其余成分原样加。具体注意下面的六要素：1.单数主格人称代词要变成相应的复数主格人称代词，即I we;
6、 youyou; she, he, itthey 。 如： She is a girl.They are girls.2. am, is 要变为 are。 如： Im a student. We are students.3.不定冠词 a, an 要去掉。如： He is a boy. They are boys.4.普通单数名词要变为复数形式。如： It is a cat. They are cats.5.指示代词 this, that 要变为 these, those。如： This is a book.These are books. 6. man, woman 作定语修饰可数名词时，要
7、在 “数“ 上与被修饰名词保持一致。但其他名词修饰名词表示 “性质“ 时，不作变化。如：He is a man doctor.They are men doctors. This is an apple tree.They are apple trees. 单复数相互转换，每空一词 (含缩写)。61. The woman is a nurse.(改为复数句)The _ _ _.2. There are some old cars.(改为单数句 )There _ _ old _.3. He has a new book.(改为复数句)_ _ new _.4. Are these your chicks ?(改为单数句)_ _ your _?5. Is there a sheep in the playground?(改为复数句)_ there _ _ in the playground?
