地球温暖化の影響で、北極海の氷は溶け出し、そのせいで北極熊は住む場所を失っている。氷の減少により飢えたり、おぼれたり、陸にあがり食料を求めたり、互いを食べあったりするようになってしまった。結果、北極熊は今絶滅の危機にさらされている。可愛い北極熊に興味のある方には、ぜひ北極熊の現状を知ってもらいたいです。

Polar bears on thin ice

Choose the correct answer.

1.Polar bears depend on ice floes(floating sheets of ice)to travel on while they hunt for ( ).

a)seals

b)rabbits

c)birds

2.More than ( )percent of the Arctic ice cap has melted in the past 25 years.

a)thirty

b)twenty

c)ten

3.In northen Canada, hungry polar bears have broken into ( ).

a)mountains

b)trains

c)people's homes

4.In Russia, a 15 years old girl was killed by a ( )polar bear.

a)starving

b)baby

c)calm

5.Some hungry polar bears have become ( ).

a)cannibals

b)very big

c)very wild

6.In the Arctic ice, temperatures are are rising almost( ) times as fast as global averages.

a)five

b)three

c)twice

7.There are only about ( ) polar bears left on earth in 2006.

a)20,000

b)3,000

c)400

8.In northen Canada, hungry polar bears have been found searching for food in ( ).

a)people's house

b)trees

c)the forest

9.The Arctic ice cap could melt completely away during the ( ) months by the end of this century.

a)winter

b)spring

c)summer

10.White bears are in great danger of becoming ( ).

a)big

b)extinct

c)stronger

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Rina Yoshida