58. What does “glyco-” in the underlined word “glycoprotein” in the last paragraph mean?

　 A. sugar　　　　　 B. ice　　　　　　　　　 C. blood　　　　 D. molecule

C

When someone gives you advice, listen without judgment, try to find value in what you’re hearing, and say: “Thank you”. This wise advice is easy to understand yet hard to practice. I’ll give you an example from my life when I totally blew it in terms of practicing what I teach.

In my work I travel constantly. I always put off going to the airport until the last second. My wife, Lyda, was sitting next to me in the front seat. I was racing along and not paying much attention. Lyda cried out! “Look out! There is a red light up ahead. ”

Being a trained behavioral science professional-who teaches others the value of encouraging advice-I naturally screamed at her: “I know there is a red light up ahead! Don’t you think I can see?” When we arrived at the airport, Lyda didn’t speak to me. I wondered why she seemed mad at me.

During the flight to New York, I did a cost-benefit analysis. I asked myself: “What was the cost of just listening when Lyda called out the warning? Zero. ” I then reasoned: “What was the potential benefit? What could have been saved?” Several potential benefits came to mind, including her life, my life, and the lives of other people.

A few months passed, and I had long forgotten the incident. Again, I was racing off to the airport, when Lyda cried out: “Look out for the red light!” I was embarrassed, and then shouted: “Thank you!”

I’m a long way from perfect, but I’m getting better. My suggestion is that you get in the habit of asking the important people in your life how you can do things better. And be ready for an answer. Some people may tell you things like “Look out for the red light.” When this happens, remember that there is possibly some potential benefit. Then just say: “Thank you. ”

57. What does the underlined word “it” in Paragraph 5 refer to?

　 A. A type of ice-salt mixture.　　　　　　 B. A newly found protein.

　 C. Fish blood.　　　　　　　　　　　 　　　　　　　 D. Sugar molecule.

56. Why can the Antarctic cod live at the freezing temperature?

　 A. The seawater has a temperature of -1.88℃.

　 B. It loves to live in the ice-salt mixture.

　 C. A special protein keeps it from freezing.

　 D. Its blood has a temperature lower than -2.05℃.

55. What is the text mainly about?

　 A. The terrible conditions in the Antarctic.

　 B. A special fish living in freezing waters.

　 C. The ice shelf around Antarctica.

　 D. Protection of the Antarctic cod.

54. The worst part in Leigh’s eyes may be that　　　　　　 .

A. his dad got remarried　 　　　　　　　 B. his parents got divorced

C. his dad didn’t love him 　　　　　　　 D. his mom didn’t take him to pizza

B

Far from the land of Antarctica, a huge shelf of ice meets the ocean. At the underside of the shelf there lives a small fish, the Antarctic cod.

For forty years scientists have been curious about that fish. How does it live where most fish would freeze to death? It must have some secret. The Antarctic is not a comfortable place to work and research has been slow. Now it seems we have an answer.

Research was begun by cutting holes in the ice and catching the fish. Scientists studied the fish’s blood and measured its freezing point.

The fish were taken from seawater that had a temperature of -1.88℃ and many tiny pieces of ice floating in it. The blood of the fish did not begin to freeze until its temperature was lowered to -2.05℃. That small difference is enough for the fish to live at the freezing temperature of the ice-salt mixture.

The scientists’ next research job was clear: Find out what in the fish’s blood kept it from freezing. Their search led to some really strange thing made up of a protein never before seen in the blood of a fish. When it was removed, the blood froze at seawater temperature. When it was put back, the blood again had its antifreeze quality and a lowered freezing point.

Study showed that it is an unusual kind of protein. It has many small sugar molecules held in special positions within each big protein molecule. Because of its sugar content, it is called a glycoprotein. So it has come to be called the antifreeze fish glycoprotein. Or AFGP.

53. The underlined sentence “Keep your shirt on” probably means “　 ______ 　”.

A. Listen to reason　　　　　　 　　　　　　　 B. Stop talking　　

C. Calm down　　　　　　 　　　　　　　　　　 D. Keep warm

52. What happened to Bandit?

A. It was frozen to death. 　　　

B. It was let out of the cab and got lost

C. It was killed by a truck. 　　　

D. It ran off Highway 80 and into the mountain.

51. From the story we know that ______.

A. Leigh’s dad never had a rest on Sundays

B. Leigh was a deserted boy　　

C. Leigh’s dad lived in another city

D. Leigh’s mother often went to golf fames

49. A. of　　 　　　　　 B. with　 　　　 C. on　 　　　　 D. in