请同学们愉快的度过假期生活。精品学习网初中频道为大家提供了七年级上学期寒假作业英语答案，供大家参考。

IV.

1. 3 6 1 9 8 5 4 7 2

2. 5 7 1 2 3 4 6 10 11 9 8

3.(1) Forty-three dollars (2) Fifty-six eighty-nine / fifty-six dollars and eighty-nine cents.

(3) Sixty-eight yuan

(4) one hundred and ninety sixty four / one hundred and ninety dollars and sixty four cents

(5) ninety pounds (6) twenty-five fifty / twenty-five dollars and fifty cents

(7) seventy-eight pounds (8) seventy-eight seventy / seventy dollars and seventy cents 4.

(1) 直接加s： oranges days friends

(2) 在以s，x，sh，ch 结尾和部分以o结尾的名词后加es：

classes buses boxes foxes

watches brushes tomatoes potatoes

(3) 以辅音字母加y结尾的名词去y变为ies：countries families babies

(4) 以f，fe结尾的名词去f，fe变ves： shelf shelves leaf leaves knife knives

(5) 不规则变化： children feet teeth men women sheep

5.

That one one It’s those ones ones They’re those They this

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