仁爱版七年级上册英语电子课本,在哪里可以找到仁爱版七年级上册英语练习题

  在英语中仁爱版七年级上册英语电子课本，如果要表示两本书，三个学生，四把椅子这些两个或两个以上的概念时，要用名词的复数形式。

词形变化规则

1 规则变化的复数形式

a 一般情况下 加 –s

book—books pen—pens girl—girls

b 以s, x, ch, sh, o 结尾的加-es

bus—buses box—boxes watch—watches dish—dishes tomato– tomatoes

c 以辅音字母加 y 结尾的单词把y 变成I 加 –es

city—cities country—countries baby—babies

d 以f 或fe 结尾的 去掉f 或fe。
  变成v 加-es

leaf—leaves knife—knives life– lives

2不规则变化的复数形式

a 元音发生变化: man—men woman—women foot—feet tooth—teeth mouse –mice

b 词尾发生变化: child—children

c 单复数形式相同: fish—fish deer—deer sheep—sheep

练习

I 请用括号中名词的复数形式填空

1 Look at those _______。
   (child)

2 I can see a __________ standing near the door。 (policeman)

3 Do you want some ________ for dinner? (potato)

4 In autumn, you can see a lot of _______ on the ground。
  (leaf)

5 He has two _______。One is blue , the other is yellow。( box)

6 Two ________ live in this building 。
  ( family )

II 选择正确的词形

1 How many (radioes, radios) can you see?

2 There are 36 (boys, boies) in my class。
  

3 Look at those (sheeps, sheep)。

4 I don’t want (a, an) old cup。

5 Give me that (box, boxes), please。
  

III 将以下单复数句进行转换

1 This is a knife。 ______________________________________

2 That is a tomato。
   ______________________________________

3 That child is very good。_____________________________________

4 These are mice。
   ______________________________________

5 Those are children。 ______________________________________
谢谢采纳！！！。