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This news is from a zoo. The zoo is in Ohio, USA. A mother polar bear(北极熊) has a baby. The baby is a girl. She is beautiful. She is 200 grams heavy. Her mother looks after her and gives milk to her.

Soon the mother stops giving milk to her. The baby could die if she doesn’t have any to eat. Workers in the zoo must help the little bear. They give food to her six times a day. The food is very nice like her mother’s milk. After two months, she is 3 kilograms heavy.

1.The baby polar bear lives in _______.

A the sea

B a river

C a zoo

D a park

解析：选C。细节理解题。根据第一段第二句The zoo is in Ohio, USA.可知，故选C。

2.The baby polar bear is 200 grams _______.

A tall

B heavy

C big

D long

解析：选B。细节理解题。根据第一段倒数第二句She is 200 grams heavy.可知，故选B。

3.There are _______ polar bears in the passage.

A one

B two

C three

D three

解析：选B。数字计算题。文章只提到北极熊妈妈与小北极熊，故选B。

4.Who gives the baby bear food six times a day?

A A mother tiger.

B A beautiful girl.

C The mother polar bear.

D The workers in the zoo.

解析：选D。细节理解题。根据第二段第三、四句Workers in the zoo must help the little bear. They give food to her six times a day.可知，故选D。