【每日訓練】英語四級六級閱讀(09)
小編寄語：英語四級六級考試，閱讀是不可或缺的一大部分，生詞多，理解難，時間少，是不少考生抱怨的問題。要想在考場上做好閱讀理解，必須在平常多閱讀，掌握新詞匯，提高閱讀速度。而滬江小編就為大家準備了閱讀材料系列，供大家練習。
我們的這個閱讀系列旨在為大家提供一些閱讀材料，不一定跟四六級考試的難度、篇幅、內容完全一樣。對于很多童鞋糾結這是四級還是六級范圍的閱讀，其實沒有必要。如果大家覺得比較簡單，就當作泛讀材料了解了解，認識幾個新單詞或新表達方式也不錯。如果大家覺得這些材料理解上有難度，不妨當做挑戰(zhàn)自己的拔高訓練，希望大家都有進步^^
【今日推薦閱讀】
Wearing a light blue wetsuit that matches the colour of the sea will make you less likely to become the victim of a shark attack, according to researchers. Sharks are completely colour-blind and only see things clearly if they are mostly light or dark, scientists have claimed. In a breakthrough that could prove hugely beneficial to divers navigating shark-filled waters, scientists found that the predator - like dolphins, seals and whales - is unable to distinguish between colours. Costumes or wetsuits that camouflage swimmers' bodies in the sea water are less likely to draw a shark's attention than ones with bright, solid colours than emphasise their outline.
Professor Nathan Hart, from the University of Western Australia, said: 'It’s the high contrast against the water rather than the colour itself which is probably attractive to sharks. 'So you should wear perhaps more muted colours or colours that match the background in the water better.' The researchers examined the eyes of dead sharks and found they had only one type of photoreceptor in the retina, indicating they could only see in monochrome.
The U.S. Navy has conducted tests that suggested sharks were able to see yellow most clearly. The tests had been to see what would be the best colour for the lifejackets that pilots wear in case they have to eject and splash down in the ocean. Professor Hart said it was more the high contrast of yellow, not the colour itself, that would increase the visibility for sharks. He said: 'It may be possible to design swimming attire and surf craft that have a lower visual contrast to sharks and are therefore less attractive to them.' The study by researchers at the University of Western Australia and the University of Queensland, is to be published in the German nature journal Naturwissenschaften (Science of Nature).
【內容簡介】
本文開篇邊介紹了鯊魚是“色盲”這一研究發(fā)現，接著又介紹說明海豚、鯨魚等其它海中巨獸也是色盲，由此專家提出建議穿何種顏色泳衣可避免被攻擊。
文章同時也介紹了鯊魚最能感知的是黃色這一發(fā)現并闡明了原因。最后文章講述了這一發(fā)現對海底救生船及救生衣設計的作用。
【詞匯短語講解】
①beneficial? to? 有利于，有益于
②in case? 以防，萬一，后接從句。
in case of? 若某事發(fā)生，加入，后接名詞或名詞短語。
如：In case that it rains, we should take an umbrella.
In case of rain, we should take an umbrella.
以防下雨，我們應該帶把傘。
③draw one's attention=catch one's attention? 引起……的注意
④solid color 單色，純色??? muted color 中性色
⑤be attractive to? 對……有吸引力的
【快速閱讀支招】
這類介紹性文章不長，但經常會有一些專業(yè)詞匯，比如這一篇就有關于海洋和光學類詞匯。我們在閱讀理解過程中要把重心放在核心句上，比如研究的結果、研究的過程及研究的意義，這類信息比較容易考到?？紙錾蠒r間較緊，對于一堆不認識的專業(yè)詞匯過于較真可能會浪費很多時間，在不影響整體理解的前提下我們可以猜詞語意思，猜不出來就把握好句子主體意思。
