Millions years ago much of our earth was covered with blocks (块) of ice. These ice blocks were as tall as high buildings in modern cities. Most of the ice was in the northern (北方的)part of the world.
Then the ice blocks started to move south. Cold and rain came with the ice. Animals and people had to move.
At last, the ice began to melt (融化). After half a million years, most of it had melted. More than half of the earth became covered with water. The climate became much warmer. Things began to grow. The earth began to look the way it looks today.
Millions of years ago our earth was very _________________.

A．warm

B．hot

C．cool

D．cold

What did animals and people try to do when the ice blocks moved south?

A．they tried to stop them moving.	B．They tried to melt them.
C．They tried to stay ahead of them.	D．They tried to move behind them.

The melting ice maybe helped to form _____________.

A．mountains and valleys	B．the sun, the moon and the earth
C．cities and countries	D．seas, lakes and rivers

The underlined word “climate” means _______________.

A．the freezing ice	B．the weather of the year
C．the moving of the ice blocks	D．a plant or an animal

Which of these things maybe happened because the Ice Age ended?
a. Forests grew                     b. Food became harder to find
c. Fishing became easier              d. The temperature dropped.

A．a; b

B．b; d

C．c; d

D．a; c

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