2．Why did Kelsey keep barking?

　　A．To keep warm.

　　B．To stay alive.

　　C．To keep Bob awake.

　　D．To seek help from others.

　　答案与解析：D　考查推理判断。根据第四段中的"By the next morning, my voice was gone and I couldn't yell for help, but Kelsey didn't stop barking"可推知，Kelsey一直叫的目的是找人来帮助主人，故选D项。

　　3．How does Dr. Chaim Colen feel about Kelsey?

　　A．Helpful.　 B．Fortunate.

　　C．Grateful. D．Friendly.

　　答案与解析：A　考查推理判断。根据倒数第二段中的"Dr. Chaim Colen, the doctor who treated Bob, said, 'Animals can help and his dog really saved him... He was very fortunate'"可知，Chaim Colen医生认为动物能提供帮助，Bob的狗救了Bob。因此Chaim Colen医生认为Kelsey是有帮助的，故选A项。

　　4．What can be a suitable title for the text?

　　A．A Neck­breaking Accident

　　B．The Magic Night

　　C．Warmth on a Winter's Night

　　D．Determination to Keep Alive

答案与解析：C　考查主旨大意。通读全文内容并根据倒数第二段中的"However, doctors were surprised to find that he didn't have any frostbite (冻疮). They believed it was because of Kelsey's determination to keep him warm"可知，Bob在寒冷的夜里衣着单薄却没有任何