可数名词和不可数名词的用法 (1) 名词可分为 _ 和 _(2) 可数名词能以数目来计算，可数名词有单数形式和_。 可数名词单数形式前面可以用不定冠词 a或 an修饰。如：1 一个男孩 _2 一支钢笔 _3 一个苹果 _4 一名工程师 _ 复数名词前可用 some (一些)，many（许多的）, a lot of / lots of（许多的）, a few （几个），few(几乎没有，很少)，how many (多少) 等修饰。如： 5 一些书 _6 很多车 _7 很多植物 _8 几个鸡蛋 _9 There are many different _ (plant) on Earth.10 There are some _ (box) in the room. 11 I have a few _ (friend) here. 12 There are thirty-eight _ (student) in our class. 13 There are seven _ (day) in a week. 14 She has few _ (friend) there. (3) 可数名词的单数变为复数形式的规则1. 一般在词尾直接加-s。如：cat _ bag _ day _2. 以 s, sh, ch, x 结尾的词加 es。如： class _ watch _box _dish(餐具) _ 3. 以辅音字母 + y 结尾的词，先变 y 为 i，再加es 。如： city _story _ party _注意： day _monkey (猴子)_ boy _ 4. 以 f 或 fe 结尾的词，先变f 或 fe 为 v，再加 es。如： leaf (树叶) _knife _ life _5. 部分以辅音字母 + o结尾的名词加es。如： potato (马铃薯) _ tomato (西红柿) _ negro(黑人) _ hero(英雄) _Negroes and heroes like to eat potatoes and tomatoes. 黑人英雄喜欢吃马铃薯和西红柿。(4) 名词单数变为复数的不规则变化1. man _woman _ policeman _ 注意：German (德国人) _American (美国人) _2. foot(脚) _ tooth (牙齿) _3. sheep (绵羊) _deer (鹿) _ Chinese (中国人) _Japanese (日本人) _ 4. child(小孩) _mouse(老鼠) _ (5) 有些名词本身就是复数形式，所以作主语时，谓语动词要用复数形式。如： people 人，人们clothes 衣服glasses 眼镜 1 There are five _ (people) in my family.2 The clothes on the bed _ (be) Annas. 3 How many people _ (be) there in your family? 4 These glasses _ (be) new. (6) 不可数名词，不能以数目来计算，一般没有复数形式，只有单数形式。 不可数名词可以用 much (很多)，a lot of / lots of (很多)，some (一些)，how much (多少)，a little (一点)，little (几乎没有) 等来修饰。如：1. _ 一点牛奶2. _ 很多水3. _ 一些面包4. _ 很多作业5. How much _ (rice) would you like ？ 6. There is some _ (food ) in the fridge(冰箱). 7. Today I have a lot of _ (work) to do. 8. There is a little _ (orange) in the bottle. 常用的不可数名词： water（水）, air（空气）, tea（茶）, meat（肉）, milk（牛奶）, rice（米饭）, bread（面包）, paper（纸）, food（食物,pork（猪肉）, beef（牛肉）, orange（橙汁）, energy（能源）hair （头发）news（新闻，消息）, coffee（咖啡）, weather（天气）, work,（工作） time（时间）, light（光）money（钱）, homework 作业housework 家务rubbish （垃圾）pollution（污染）grass（草，青草）等(7) 不可数名词数量的表达： 数词 / a ,an / many 等 + 量词 + of + 不可数名词 1. _ 一杯牛奶2. _ 两碗(bowl)米饭 3. _ 一瓶橙汁4. _ 五片(piece)面包 5. _ 一杯茶6. _ 三张纸(8) 下列这些词可以修饰复数名词，也可以修饰不可数名词 some（一些），any（一些），a lot of / lots of （许多的）1 一些牛奶 _2 一些香蕉 _3 很多垃圾 _4 很多花 _ 5 Today there is a lot of _ (pollution). 6 There are a lot of _ (student) on the playground. 7 There isnt any _ (water) in the cup. 8 There arent any _ (apple) in the box. 9 I have some _ (tea). She has some _ (cake).(9) 用所给名词的适当形式填空。1. The students visited Uncle Sams farm(农场）last Sunday and saw a lot of_ (sheep) there.2. There are two _(German) in our school this year.3. Sam wants to help his parents, so he does a lot of _ (work).4. _ ( child) usually enjoy having ice creams.5. We walk with(用) our _(foot). I brush my _ (tooth) twice a week. 6. We have few _ (friend) there. 7. How many _ (box) of oranges do you want to buy?8. -Whats in the box? - A few _ (apple) and some _ (coffee).9. I have two _ (knife).10. Now many _ (family) have cars. 11. We burn things to make _ (energy). 12. People throw away lots of _ (rubbish) every