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.
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