问题 名词解释

溅渣护炉技术

答案

参考答案:

利用MgO含量达到饱和或过饱和的炼钢终点渣,通过高压氮气的吹溅,使其在炉衬表面形成一层高熔点的熔渣层,并于炉衬很好地粘结附着,称为溅渣护炉技术。

阅读理解

Reading comprehension.

     Ron loved basketball. One afternoon on his way to a basketball game, he was walking and dreaming about

playing college basketball the following year. As Ron was walking to the game, a car hit him so hard that he

was thrown three feet into the air.

     Ron woke up in a hospital room. When he learned that both his legs were broken, he realized his college

basketball dreams were over. Ron did what the doctors told him, but his progress was slow. When he left the

hospital, Ron was sent to a health center for physical treatment.

     A week after he arrived there, he met Sunny. Sunny was a coach.His legs were hurt paralysed (瘫痪的)

from a skiing accident. Even though he couldn't move his legs, Sunny coached of a basketball team called the

Suns. Everybody on the team played from a wheelchair. Sunny invited Ron to join the game. Ron played

badly, but for the first time since the accident, he stopped feeling sorry for himself.

     After becoming a part of the Suns, Ron improved quickly. Basketball was like medicine for him. And

whenever Ron became depressed or angry, Sunny was there to encourage and help him. The day before Ron

left the center, he had dinner with Sunny. He asked Sunny how he managed to be generous and cheerful, even

with his paralysis.

     Sunny smiled and said, "It's really quite easy. When you keep your face to the sun, the shadows (阴影) fall

behind."

1. What happened to Ron on his way to a basketball game?

A. A car hit him.

B. He met his coach.

C. His doctor called him.

D. He fell down and cut his foot.

2. The underlined word "depressed" means _____ in Chinese.

A. 懒惰的

B. 好奇的

C. 沮丧的

D. 激动的

3. What is the most important thing we can learn from the story?

A. Basketball can teach people about life.

B. Keep smiling when you face difficulties.

C. Life is more difficult for the paralysed.

D. Skiing is more dangerous than basketball.

单项选择题