C
Far from the land of Antarctica(南极洲), 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 secrets. 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(蛋白质) 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(分子) 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. 28. 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.
29. 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℃.
30. 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.
31. What does “glycol-” in the underlined word “glycoprotein” in the last paragraph mean?
A. sugar B. ice C. blood D. molecule
D
It’s only 4 hours flying time from Sydney, but a world away. What better place to rest than a country where the only place people hurry is on the football field and things are done in “Fiji time”?
Viti Levu – Great Fiji – is the largest island. Here you’ll find the capital Suva and the international airport at Nadi. On the other hand, Vatoa, is a tiny island in the farthest part of Fiji. Then there are 331 other islands, many of them with places to stay.
With less than a million people living on islands, you’ll never feel crowded. And with a climate(气候) that changes only for five degrees between seasons, there’s never a bad time to come.
From cities to villages, from mountains to beaches, from water sports to wooden artworks, Fiji can give you more adventures and special experiences than you could find almost anywhere in the world.
Whenever you come, wherever you go, you’re sure to see some
unforgettable events. From war dances to religious(宗教的) songs. From market days to religious days. It’s not just staged for tourists; it’s still a part of everyday life in Fiji. And any one of us can enjoy Fiji’s spirit by being part of the traditional(传统的) sharing of yaqona, a drink made from the root of a Fiji plant.
So why not join us for the experience of a life-time? 32. Where is the international airport of Fiji?
A. In Suva. B. In Sydney. C. On the island of Vatoa. D. On the island of Viti Levu.
33. What does the text tell us about Fijian people?
A. They invented “Fiji time” for visitors. B. They stick to a traditional way of life. C. They like to travel from place to place. D. They love taking adventures abroad.
34. One of the things that make Fiji a tourist attraction is _______.
A. it’s comfortable hotels B. its good weather all year round
C. its exciting football matches D. its religious beliefs 35. Where can we most probably read this text?
A. In a personal diary. B. In a science report. C. In a travel magazine. D. In a geography textbook. 第二节（共5小题;每小题2分,满分10分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Christmas is a time for relaxing,having fun and spending time with family and friends.36 It can be difficult to find the motivation for study when everyone around you is having so much fun.So,here are my top five tips for
revising effectively over the Christmas break.
Set aside a few hours a day to revise.
Find the best time to revise and make sure that you stick to your timetable!For example, I find that I work best in the morning. 37
Plan something fun to do every day.
Even if it’s just going for coffee with a friend or watching a film at home,this will give you something to look forward to and motivate you to finish your revision.
Explain to your family why your revision is important.
38 So,make efforts to tell them why your exams are important.Perhaps you can agree to do something nice with them when your exams are over.
39
It is important to take some time to relax.When you do get back to revising,you’ll probably find it easier to concentrate.Pick the most important days for you and your family to concentrate on celebrating Christmas!
Remember that it won’t last forever.
You might have to spend your Christmas revising this year,and perhaps
for a few more years,but soon enough you’ll be free of exams forever.40 Have a great Christmas and make sure you find a balance between studying and celebrating.Good luck in your exams!
A.Spare your time for your family. B.Make sure that you take a few days off!
C.So I get up fairly early and do a few hours of revision. D.Sometimes it can be difficult for family to understand you.
相关推荐：
loading