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For the first nine months of their lives, twin boys Artie and Jack lived in a world without sound. They were born very early. The boys were mostly healthy, but they could not hear at all. Both of them were born deaf.

The doctors in Australia decided to do a very special surgery (外科手术). They gave both boys cochlear implants (人工耳蜗) on the same day. This was the first time in Australia that twins had surgery together like this. Dr. Rithvik Reddy, the ear surgeon, said it was a big challenge. They had to plan carefully, but it was worth it. Doing it on the same day helped the family a lot. It also made the boys go through the experience together.

After the surgery, Emily and her husband Ewan took good care of the boys. When the time came, they went to a hearing center to turn on the implants. That day was very vital to the family. Emily called it the peak day of the whole process. Ewan said it was the start of a new life for the boys.

Emily felt very emotional when the implants were turned on. She could see her sons turn their heads toward her voice. Their eyes became wide with surprise. It was an amazing moment. Ewan said that every morning, they turn on the implants for the boys. The twins smile and show that they understand what their parents say. Their older brother Tommy also loves to see them react.

The whole family feels thankful. For Ewan, the ability to communicate with his sons is a true gift and a miracle.

1.1. What was wrong with the twin boys at birth?

A They could not speak.

B They could not hear.

C They could not walk.

D They could not see.

解析：选B。B细节理解题。根据第一段“they could not hear at all. Both of them were born deaf”可知双胞胎出生时听不到声音。故选B。

2.2. What was special about the twins’ surgery?

A Both had surgery on one day.

B Doctors used new medical tools.

C The surgery cost much less money.

D The family watched the operation.

解析：选A。A细节理解题。根据第二段“This was the first time in Australia that twins had surgery together... on the same day”可知特殊之处是双胞胎在同一天接受手术。故选A。

3.3. What does the word “vital” mean?

A 普通的

B 重要的

C 无用的

D 奇怪的

解析：选B。B词义猜测题。根据第三段“Emily called it the peak day... Ewan said it was the start of a new life”可知这一天至关重要，vital意为“重要的”。故选B。

4.4. How did Emily feel when the implants were turned on?

A Sad and angry.

B Moved and joyful.

C Tired and upset.

D Quiet and bored.

解析：选B。B推理判断题。根据第四段“Emily felt very emotional”以及后文全家人“thankful、gift、miracle”的积极基调，可推测她深受感动且满心喜悦。故选B。

5.5. What is the main idea of the passage?

A The challenge of twin surgeries.

B How to care for deaf children.

C Daily life in a big family.

D A family’s joy from medicine.

解析：选D。D主旨大意题。全文围绕双胞胎通过人工耳蜗手术获得听力、一家人因此幸福感恩展开。A项只聚焦手术本身，B、C项偏离主题。故选D。