ANTARCTICA GEOGRAPHY • world's highest, coldest and windiest continent. •more than31__58__times as big as the UK •most of the area is classified as 32__desert__ RESEARCH STATIONS • international teams work together • 33__science__is integrated with technical support • stations contain accommodation, work areas, a kitchen, a 34__hospital__ and a gym • supplies were brought to Zero One station by sledge from a 35__ship__at the edge of the ice 15 km away • problem of snow build-ups solved by building stations on 36__platform__with adjustable legs FOOD AND DIET • average daily requirement for an adult in Antarctic is approximately 37__3500__kilocalories • rations for field work prepared by process of freeze-drying RESEARCH The most important research focuses on climate change, including - measuring changes in the ice-cap (because of effects on sea levels and 38__ocean current__) - monitoring the hole in the ozone layer - analysing air from bubbles in ice to measure 39__polution__ caused by human activity WORK OPPORTUNITIES Many openings for 40__young__people including -research assistants - administrative and technical positions

文章关于南极洲的介绍，根据空前的信息进行分析：
31. 数字
Antarctica is a place of extremes-the highest, coldest and windiest continent and over fifty-eight times the size of the UK.
32. as 后加名词
butwith very low snowfall, most of the continent technically falls unbelievably Into the category of 'desert'.
33. 缺主语，需要名词
Here science and technical support have been integrated in a very cost-effective way
34. a 名词，在a kitchen 之后
There's living and working space, a kitchenwith a huge food store, a small hospital and a well-equipped gym
35. from a 名词，可能是地点
Supplies were brought to us on large sledges from a shipfifteen kilometers away at the ice edge
36. on 名词，可能是地点
the buildings are placed on platforms which can be raised above the changing snow level on legs which are extendable.
37. 数字
someone in Antarctica will need about 3500-just over double.
38. 名词，sea levels之后
Since these may have profound effects on worldsea levels and on ocean currents.
39. measure 名词
Thirdly, bubbles in the ice-sheet itself provide an index of pollutionbecause frozen inside them are samples of previous atmospheres over the past 500,000 years.
40. 形容词
There are an increasing number of opportunitiesfor young peopleto work for a period in Antarctica.

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