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2017年湖北自考英语(一)真题练习(10)

来源: 整编:湖北自考网 发表时间:2017-03-23 10:48:52 【湖北自考网:湖北自学考试门户网】

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2017年湖北自考英语(一)真题练习(10)

>>>2017年湖北自考英语(一)真题练习【汇总】

1、单选题

[概括大意]Wignall calculated the “killing efficiency” for these volcanoes by comparing the proportion of life they killed off with the volume of lava that they produced. He found that size for size, older eruptions were at least 10 times as effective at wiping out life as their more recent rivals.

The main idea of this paragraph is__________.

A.Killing Power of Ancient Volcanic Eruptions

B.Accounting for the Killing Power of Older Eruptions

C.Calculation of the Killing Power of Older Eruptions

D.A Mass Extinction

正确答案:C

答案解析:本段第一句话是说:Wignall calculated the "killing efficiency" for these volcanoes…;Wignall 计算了这些火山的“灭绝效率”……;其中killing efficiency与killing Power意思差不多,属于同义词转换,因此选择B或C,但是account for 意思是:(在数量方面)占;说明(原因等)不符合句意,因此不选择B。

2、

单选题

[概括大意]So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems. Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled. However, small children are particularly exposed to metal-rich topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.

The main idea of this paragraph is__________.

A.Potential Hazards of Human Contaminated Soils

B.Research on Channels of Heavy Metals Getting into Human Food Chain

C.Long- term Health Effects on Health Problems

D.No Evidence to Indicate Bad Effects of Naturally Contaminated Soil

正确答案:B

答案解析:本段文字涉及到的是自然污染的土壤一般情况下对人体不会造成危害,首句So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard.便提示出这一点,而D选项只是这个句子的同义转述。

 


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