A New York boy is celebrating Valentine's Day with a new heart this year. And his doctors say a dog named Ralph really does some help. 

Eight-year-old Pablo Patino was born with heart disease, and by last autumn, he was in terrible danger.

"There were times he was so sick he may not survive, so it's amazing," Dr. Irene Lytrivi said.

Think doctors are the only ones who can help people through illness and pain? Think again.

Pablo received a heart transplant in November. But after surgery, doctors say he needed something more than just modern medicine. That's when Ralph stepped in. The dog helped distract Pablo from the pain and encouraged him to get up and move.

"He made me feel better, he made me do some exercise and walking," Pablo said. 

Pablo's family believed Ralph helped get their little boy back on his feet. 

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1.What’s wrong with the boy when he was born?

A He was born with heart disease.

B He was born blind.

C He was born deaf.

D He was born mute.

解析：选A。A 细节理解题。根据第2段Eight-year-old Pablo Patino was born with heart disease,…可知，故选A。

2.When did the boy begin to have a new heart?

A Last March.

B This autumn.

C Last November.

D On Valentine's Day

解析：选C。C 细节理解题。根据第5段第1句Pablo received a heart transplant in November.可知，故选C。

3.Who played an important role in helping the boy EXCEPT the doctors?

A A cat named Ralph.

B A dog named Ralph.

C A rat named Ralph.

D A man named Ralph.

解析：选B。B 内容理解题。文章讲述一个男孩做完心脏移植手术后在一只狗狗的帮助下重新站起来，故选B。

4.What does “He” refer to in "He made me feel better” in the six paragraph?

A Dr. Irene Lytrivi.

B Pablo's family.

C Ralph.

D Pablo Patino.

解析：选C。C 判断推理题。根据上下文语境可知He指的是一只名叫Ralph的狗，故选C。

5.What does “back on his feet” mean in the last paragraph?

A 回到脚上.

B 在脚面上.

C 在脚背上.

D 重新站起来.

解析：选D。D 语义推测题。根据句意可推知应该是这只名叫Ralph的狗狗帮助小男孩重新站了起来，故选D。