2017年职称英语理工类B级补全短文备考习题【一】

时间:2016-05-07  来源:大考吧  

  2017年职称英语理工类B级补全短文备考习题(一)

  补全短文(共5题,每题2分,共10分)

  1篇300-450词的短文,文中有5处空白,文章后面有6组文字,其中5组取自文章本身。要求应试者根据文章的内容选择5组文字,将其放回相应位置,以恢复文章原貌。

  应对策略:

  要先看标题定文体,再看选项,观察选项时应注意抓主干,猜大意,弄清选项大意是表示定义、因果、例子还是措施;不要放过代词、专用名字、连接词、数字等特征词;

  然后回头再去看课文,明确1-5的位置。

  解每道题时只需要阅读该题所在段落,不需要阅读其他段落。往往通过阅读该题目的前后句就能够确定答案,在考试时,应该注意利用以下前后句子存在的关系来做题:

  (1)利用转折关系 (2)利用归纳总结关系 (3)利用总分关系 (4)利用并列关系

  阅读下面的短文,文章中有5处空白,文章后面有6组文字,请根据文章的内容选择5组文字,将其分别放回文章原有位置,以恢复文章原貌。

  Migration of Monarch Butterflies

  One of the greatest mysteries in biology—how the monarch butterfly travels thousands of kilometers on its yearly migration—has just been solved.

  (1)No other butterfly in the world migrates like the orange and black monarchs of North America.(2)Each autumn,thousands travel up to 3,000 km to spend the winter in the mountains of Mexico.There are so many,they almost block out the sky,and you can hear their wings beating.

  It usually takes the butterflies two months to reach Mexico.After staying five months,they head back up north in the spring.But not one butterfly finishes the whole round-trip.(3)Three generations of butterflies will live and die during the spring journey alone.The fourth and final generation of the year is born in early autumn and will reach the north.But it hardly gets to rest before starting the long journey south to Mexico.

  The most amazing thing about these butterflies is that they return to the very same tree in Mexico that their great-great-grandparents used the winter before.Past studies have shown that the insects use the sun as a compass to show them the way.

  (4)This new study now shows that the insects use a "circadian(生理节奏的)" clock in their bodies as part of their sun compass.In laboratory tests,monarch butterflies were found to fly in the right direction under normal daylight hours.But those flying in 24-hour light headed straight towards the sun.(5)Scientist Steven Reppert,who led the research,said: "We have shown the need for the circadian clock for monarch butterfly migration.When the clock is interrupted,monarchs are unable to fly towards Mexico."

  A.That is,they no longer had any sense of time.

  B.They lay eggs along the way and die.

  C.The circadian clock is useful for monarch butterfly migration.

  D.Monarch butterflies use the sun to set their body clocks and make their journeys,according to US scientists.

  E.But experts are unsure how the butterflies change their direction as the sun moves in the sky.

  F.They cannot live for long periods in cold weather.

  解析:

  1.D,前一句提到有关蝶王的谜已经解开。本句详细阐述这个谜底是什么,即美国科学家发现蝶王根据太阳设定自己的生物钟去旅行

  2.F,后一句提到每年秋天成千只蝴蝶长途跋涉到墨西哥山脉过冬。因此本句是个衔接句,说明在寒冷的天气这些蝴蝶生活的时间不会很长。

  3.B,前一句提到没有一只蝴蝶可以完成全程旅行。本句更进一步说明蝴蝶的旅行途中发生的事情。

  4.E,前一句说过去的研究表明有些昆虫利用太阳指引方向。后一句详细介绍有关蝴蝶如何利用太阳指引方向。所以本句是转折句,表明专家们不确定蝴蝶是如何利用太阳指引方向的。

  5.A,本句进一步解释前一句话的内容。前一句话意为“蝴蝶在24小时都有灯光的情况下,会直接飞向太阳”。本句意为“这说明这种情况下蝴蝶没有时间概念”。That is,意为“也就是说”。

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