七年级英语语法：可数名词和不可数名词

    名词的应用是英语语法的重要知识点，学习好英语的基础就是对语法的掌握，下面是小编给大家带来的七年级英语语法：可数名词和不可数名词，希望能够帮助到大家!
    可数名词变复数规则变化
    1、一般情况下，加s ;
    读音规则：清读/s/ ,浊、元/z/
    eg：book→books;desk→desks;pen→pens;car→cars
    s遇t读[ts]，遇d读[dz]
    eg：friend→friends; cat→cats;
    以s、x、ch、sh结尾的名词，加-es;
    读音规则：读[iz];
    eg：bus→buses; box→boxes; watch→watches; dish→dishes
    以辅音字母+y结尾的名词，要把y变为i，再加-es;
    读音规则：读[z]。
    eg：library---libraries; baby→babies;
    注意：元音字母加y结尾的单词直接加s;
    eg：toy→toys;boy→boys;
    以-f或-fe结尾的名词，要将-f或-fe变为-v，再加es;
    读音规则：读[vz];eg：knife→knives;leaf→leaves;
    以-o结尾的名词，有的加s，有的加es
    读音规则：读[z]。
    初中阶段只有4个单词要加-es，其余都加-s;
    口诀：“黑人英雄爱吃土豆西红柿”
    eg：tomato→tomatoes西红柿; potato→potatoes土豆; hero→heroes英雄; Negro—Negroes
    其余eg：zoo→zoos; photo→photos;
    可数名词变复数不规则变化：
    1.单词内部发生变化：口诀:oo常常变ee，男人女人a变e
    eg：foot→feet脚;tooth→teeth牙齿;man→men男人;woman→women女人;
    2.单复数相同：羊鱼小鹿无变化，单数复数是一家
    eg：sheep→sheep绵羊;fish→fish鱼;deer→deer鹿;
    不规则变化：child→children孩子;mouse→mice老鼠;German→Germans德国人;
    某国人的复数有三种类型：
    口诀:中日不变，英法变，其它在后加s
    Chinese, Japanese单数复数同形，不需加s;
    Englishman, Frenchman,复数要把man 变为men;
    其他各国人直接加s。如：Americans, Australian
    名词变复数练习题
    一、写出下列名词的复数形式
    1、orange
    2、class
    3、text
    4、monkey
    5、piano
    6、child
    7、shelf
    8、bed
    9、country
    10、family
    11、toy
    12、foot
    13、Japanese
    14、radio
    15、photo
    16、sheep
    17、tomato
    18、fox
    19、woman
    20、knife
    二、选择填空
    1. They come from different ______
    A. country B. countries C. a country D. countrys
    2. How many ______ do you see in the picture?
    A. tomatos B. tomatoes C. tomato D. the tomato
    3. They are______.
    A . woman teachers B. women teachers
    C. women teacher D. woman teacher
    4. Would you like _______ ,please?
    A. two glass of water B. two glasses of water
    C. two glass of waters D. two glasses of waters
    5. Most of ______ live in _______.
    A. Germans, German B. German, Germen
    C. Germen, Germany D. Germans, Germany
    6. There are some ______ in these _______.
    A.knifes…pencil-boxes B.knives…pencils-box
    C.knives…pencil-box D.knives…pencils-boxes
    7. ______ like ______ by air.
    A. Greens, travelling B. The Green, traveling
    C. The Greens, travel D. The Greens, traveling
    8..How many_____do they have??
    A.picture B.pictures C.a picture
    9. There is no ______ in the plate.
    A. apples B. oranges C. rice D. eggs
    10. _______ are good for our health.
    A. Tomatos B. Tomatoes C. Tomato
    11. ______ and ______ are not friends.
    A. Foxs…wolfs B. Foxes…wolfs C. Foxes…wolves
    12. These are the ______ of our national ______.
    A. photos … heroes
    B. photoes … heroes
    C. photos … heros
    13. The ______ are running on the ______.
    A. deer … grasses
    B. deers … grass
    C. deer … grass
    14. I was so hungry and I ate two ______.
    A. bowls of noodle
    B. bowls of noodles
    C. bowl of noodles
    三、把1—10句变为复数句
    1. This is my friend.
    2. This is a bike.
    3.That is her brother.
    4.This is a book.
    5.That is an eraser.
    6.It is a red orange.
    7.He is a teacher.
    8. What’s this?
    9.This is my mother.
    10.He is a Chinese boy.