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问题 材料题

　　不同语体的语言风格不同。下面分别是一段说明雪花形成过程的科技说明文和一首描写雪花融化的诗歌，看看它们各自有什么特点，再分别用科技语体和文艺语体写一段内容相仿的文字，体会其中的差异。

　　（1）水汽想要结晶，形成降雪必须具备两个条件：一个条件是水汽饱和。饱和的空气冷却到零点以下的温度时，空气里就有多余的水汽变成水滴或冰晶。另一个条件是空气里必须有凝结核。凝结核是一些悬浮在空中的很微小的固体微粒。如果没有凝结核，我们地球上就很难见到雨雪。

　　（2）《当春天回到了大地上》：到处寻不见雪的踪迹；小弟弟在田野上天真地发问：雪啊，你跑到哪里？泉水回答：我在这里！露珠回答：我在这里！我变成了天上的云朵，我变成了亮晶晶的雨滴……

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答案

第（1）段说明文是以说明为主要表达方式解说事物、阐明事理的文章，其语言特色是准确、通俗、简洁。

第（2）段诗歌则以抒情为主要表达方法，其特点是音韵和谐，节奏鲜明。举例略。（言之有理即可）

单项选择题

Modern industrial society grants little status to old people. In fact, such a society has a system of built-in obsolescence. There is no formal system for continuing our education throughout our life in order to keep up with rapidly changing knowledge. When our education and job skills have grown obsolete, we are treated exactly like those who have never gained an education or job skills and are not encouraged or given the opportunity to begin anew.
As a society becomes more highly developed, the overall status of older people diminishes. Improved health technology creates a large pool of old people, who compete for jobs with the young. However, economic technology lowers the demand for workers and creates new jobs for which the skills of the aged are obsolete, forcing older people into retirement. At the same time, young people are being educated in the new technology and are keeping pace with rapid changes in knowledge. Finally, urbanization creates age-segregated neighborhoods. Because the old live on fixed incomes, they must often live in inferior housing. All these factors -- retirement, obsolete knowledge and skills, inferior standards of living -- lower the status of the aged in society.
A century ago, when one could expect to live only to 50 or so, the life span more or less coincided with the occupation and family cycle. But today the average life span allows for fifteen to twenty years of life after these cycles. It appears that our life span is outpacing our usefulness in society.

Which of the following statements is NOT true

A．Retired people could only live on fixed incomes.

B．Retired people are more skillful than young people.

C．Young people are educated in the new technology.

D．Young people are keeping pace with rapid changes.
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单项选择题

预防新生儿出血症的方法是

A．避免肌注等刺激

B．生后口服云南白药

C．生后给予止血芳酸治疗

D．生后立即肌注维生素K1治疗

E．禁食
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