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《Unit Four Student Life Unit Lesson Page Text Topics Reading Language Lesson 2 Spending Habits》优秀公开课ppt课件（九年级上册）
What to wear
Where to stay
animals wild fruits and plants
animal skins
in caves
Paragraph 2
When the food was eaten up in this area? What would they do?
They moved from one p______ to another.
lace
Families produced more than they needed.
they started to trade with other families.
to buy and sell goods
to get things for free
√
Later, people began to use money as a means of exchange.
way
B. meaning
√
Paragraph 3
Because coins are easy to handle.
The advantages of coins: easy to c_____ and easy to p___ for things.
arry
ay
So, using coins lasted a long time. Later, countries began to make their own coins.
Paragraph 4