and already the number of births has dropped by 15 percent. Unless the bears can learn to survive these climate changes, these giants of the ice may one day disappear.

　　9．What is Arctic ice doing earlier each year?

　　A．It's freezing. B．It's hardening.

　　C．It's melting. D．It's expanding.

　　解析：选C　细节理解题。根据第一段第一句话中的"Arctic ice is breaking up earlier in the spring"可知北极冰川每年春天较早时候就在融化。

　　10．What is true of polar bears that are spending more time on land in Alaska?

　　A．Their young are dying.

　　B．Their diet is changing.

　　C．Their health is improving.

　　D．Their families are growing.

　　解析：选B　细节理解题。根据第二段可以看出北极熊正常情况下吃在冰面上可以捕捉到的海豹，但现在由于冰的减少，它们只能以当地猎人捕捉的鲸的残余物为食了。

　　11．What does the writer imply about female polar bears in Hudson Bay?

　　A．They are having fewer young now.

　　B．They suffer from various sicknesses.

　　C．They don't need stronger protection.

　　D．They can't find enough good males.

　　解析：选A　细节理解题。从最后一段第四和第五两句可知，北极熊的出生率已经下降了15%。

　　12．In which publication would you most likely find this passage?

　　A．Medical News. B．Society Today.

　　C．Wildlife Journal. D．Design Magazine.

　　解析：选C　文章出处题。通读全篇，可以发现文章叙述的是全球气候的变化给北极熊带来的负面影响，而北极熊属于野生动物，所以推断这篇文章最有可能摘自《野生动物杂志》。

　　Ⅱ.阅读七选五

　　Family love is one of the most valuable gifts in life and one that you cannot buy anywhere. 1 Here are four ways for you to become closer to your family：

1．Increase Your Love