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2013.6.22雅思阅读考题回顾

来源:朗阁教育 2013-07-01 编辑:PMC_ivy 2825人看过 10万人已领免费资料    雅思托福0元试学

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最近的雅思阅读考试没有非常明显的变化,Matching, Summary, TRUE/FALSE/NOT GIVEN依然是必然出现的考题,要注意的是“问答”题也经常会出来露一面,需注意对这种题型的了解和复习。还有在整体题型配置上,乱序和顺序题目经常会一起出现。

考试日期:

2013622

Reading Passage 1

Title:

黑白Leopard的颜色由基因决定

Question types:

Answer the questions below;

TRUE/FALSE/NOT GIVEN;

文章内容回顾

leopard入手研究为什么有的动物外貌会发生变异(比如皮毛颜色之类的)。猫科动物的某个基因影响其白毛黑毛还是斑点,然后讲了受这个基因影响的母鸡和老鼠是什么样的情况。最近科学家说为什么这个猫科动物会有不同毛色,是因为环境进化,为了更好伪装捕食,还是什么原因,然后又举了反例,结论是他们也不清楚为什么会出现这种情况。

相关英文原文阅读

Leopards'' spots and tigers'' stripes are a camouflage closely tied to their habitats, researchers say.

A UK team examined the flank markings of 37 species of wild cats in a bid to understand the spectacular variety of their colour patterns.

The scientists say that cats living in the trees and active at low light levels are the most likely to have complex and irregular patterns.

Continue reading the main story

“Start Quote

Sometimes the fingers slipped and the marks got a little blurred; but if you look closely at any Leopard now you will see that there are always five spots - off five black finger-tips”

Rudyard Kipling "How the leopard got his spots"

They published the findings in a Royal Society journal.

It is not the first study to suggest that wild cats need spots to "vanish" in dense forests, sandy deserts or snowy mountains.

But this time, the researchers analysed the colour patterns'' detailed shapes and complexities, stating that these two factors are vital for camouflage.

To examine different patterns, the team used images obtained from the internet and classified them with the help of mathematical formulas.

"[Some species] are particularly irregularly and complexly spotted," William Allen from the University of Bristol, the lead author of the study, told BBC News.

"The pattern depends on the habitat and also on how the species uses its habitat - if it uses it at night time or if it lives in the trees rather than on the ground, the pattern is especially irregularly spotted or complexly spotted."

Kipling''s inspiration

The first part of the study''s title, as it appears in the journal Proceedings of the Royal Society B is "Why the leopard got its spots".

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