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问题 单项选择题

“人多力量大”、“众人拾柴火焰高”，这些名言证明了人口的增加是有利于社会发展的。 上述推断的主要缺陷在于以下哪一项

A．“人多力量大”肯定了人力资源的作用，是重视人才的表现。

B．不同的人对社会的贡献是不一样的，应当指明主要应增加哪一类人口。

C．名言并非真理，不能由名言简单地证明上述结论。

D．人口越少，消耗掉的社会资源就越少。

答案

参考答案：C

解析：[注释] 名言并非真理，不能由名言简单地证明题干中的结论。名言的说法有些片面，相对于人少来说，当然人多时力量大。但是，并非人多就有利于社会的发展，人口的膨胀会给社会带来很多的负面影响。

完形填空

Section B

Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A．additional

B．producing

C．regular

D．predicted E. identifiedE atmosphere  G. matched     H. reducing   I. carried      J. increase

Forests in the northern half of the globe could be growing faster now than they were 200 years ago as a result of climate change, according to a study of trees in eastern America. The trees appear to have faster growth rates due to longer growing seasons and higher concentrations (浓度) of carbon dioxide in the ___41___.

Geoffrey Parker, a scientist at the Smithsonian Environmental Research Centre in Edgewater. Maryland, said that the increase ha the rate of growth was unexpected and might be ___42___ to the higher temperatures and longer growing seasons documented in the region. The growth may also be influenced by the significant ___43___ in atmospheric CO2, he said.

"We made a list of reasons these forests could be growing faster and then excluded half of them," Dr. Parker said. Their study suggests that northern forests may become increasingly important in ___44___ the influence of man-made CO2 on the climate.

Dr. Parker and his colleagues have ___45___ out a detailed record of the trees on a(n) ___46___ basis since 1987. They calculated that due to the global warming the forest is producing   ___47___ tons of wood each year.

The scientists ___48___ the land with trees at different stages of growth and found that both young and old trees were showing increased growth rate. More than 90 per cent of the tree groups had grown by between two and four times faster than the scientists had ___49___ from estimates of the long-term rates of growth.
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判断题

进入高炉容器作业时，应首先检查容器空气中一氧化碳的浓度，作业时，除要求通风良好，还要求容器外有专人进行监护。
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