雅思閱讀考試中，要求考生的不只是上千上萬的詞匯量，同時還有速度。如何能夠在1個小時內(nèi)，高效率的完成40個問題，就得需要考生們對問題答案所在位置的快速精準(zhǔn)定位。本文中，武漢朗閣雅思培訓(xùn)專家將以劍橋雅思4中的幾篇文章為例，給考生們講解快速定位法。

我們以劍橋4 Test1 Passage2進(jìn)行演練：

1. 略讀題目和段落

Title: What do whales feel?

     An examination of the functioning of the senses in cetaceans, the group of mammals comprising whales, dolphins and porpoises.

從對標(biāo)題的閱讀中，我們可以了解到這篇文章要講的是鯨的感官，the senses of whales. 在這里我們可以預(yù)測下感官有哪些，同時可以對下面文章的內(nèi)容進(jìn)行預(yù)測。

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    Some of the senses that we and other terrestrial mammals take for granted are either reduced or absent in cetaceans for fail to function well in water. For example, it appears from their brain structure that toothed species are unable to smell. Baleen species, on the other hand, appear to have some related brain structures but it is not known whether these are functional. It has been speculated that, as the blowholes evolved and migrated to the top of the head, the neural pathways serving sense of smell may have been nearly all sacrificed. Similarly, although at least some cetaceans have taste buds, the nerves serving these have degenerated or are rudimentary.

從首句的主干中得出一些感官在退化，消失或者在水中已失去了功用。緊跟在這句話后面的是個for example, 說明后面再舉些這類型的感官。最后一句以similarly開頭，說明即使最后一句也是一個例子，然后是個名詞taste buds, 說到了味覺，用了degenerated, rudimentary描述這個味覺，rudimentary大多數(shù)考生不認(rèn)識，但degenerated可以根據(jù)構(gòu)詞法推出是退化。

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The sense of touch has sometimes been described as weak too, but this view is probably mistaken. Trainers of captive dolphins and small whales often remark on their animals’ responsiveness to being touched or rubbed, and both captive and free-ranging cetacean individuals of all species (particularly adults and calves, or members of the same subgroup) appear to make frequent contact. This contact may help to maintain order within a group, and stroking or touching are part of the courtship ritual in most species. The area around the blowhole is also particularly sensitive and captive animals often object strongly to being touched there.

首句一看就知道這段是講觸覺，touch, 并且發(fā)現(xiàn)有個but轉(zhuǎn)折，在轉(zhuǎn)折前說觸覺有時被描述為很弱的，轉(zhuǎn)折后說這是錯誤的，表明這段后面要具體證明這一觀點。最后一句也是在具體講解觸覺這個感官。

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The sense of vision is developed to different degrees in different species. Baleen species studied at close quarters underwater-specifically a grey whale calf in captivity for a year, and free-ranging right whales and humpback whales studied and filmed off Argentina and Hawaii-have obviously tracked objects with vision underwater, and they can apparently see moderately well both in water and in air. However, the position of the eyes so restricts and field of vision in baleen whales that they probably do not have stereoscopic vision.

讀首句就可看出這段講的是視覺。最后一句提到了baleen whales的眼睛位置限制了它們的視覺域，they probably do not have stereoscopic vision.

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On the other hand, the position of the eyes in most dolphins and porpoises suggests that they have stereoscopic vision forward and downward. Eye position in freshwater dolphins, which often swim on their side or upside down while feeding, suggests that what vision they have is stereoscopic forward and upward. By comparison, the bottlenose dolphin has extremely keen vision in water. Judging from the way it watches and tracks airborne flying fish, it can apparently see fairly well through the air-water interface as well. And although preliminary experimental evidence suggests that their in-air vision is poor, the accuracy with which dolphins leap high to take small fish out of a trainer’s hand provides anecdotal evidence to the contrary.

首句有on the other hand表轉(zhuǎn)折，說明要和上段有聯(lián)系，接著往后看又說到了眼睛的位置，這次說的是most dolphins and porpoises, they are not like the baleen whales, they have stereoscopic vision forward and downward.

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Such variation can no doubt be explained with reference to the habitats in which individual species have developed. For example, vision is obviously more useful to species inhabiting clear open waters than to those living in turbid rivers and flooded plains. The South American boutu and Chinese beiji, for instance, appear to have very limited vision, and the Indian susus are blind, their eyes reduced to slits that probably allow them to sense only the direction and intensity of light.

首句一讀的話會發(fā)現(xiàn)一個重要的詞匯habitats. 在這句之后又有了for example, 同時看到了vision, 說明這段講vision和habitats的關(guān)系。

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Although the senses of taste and smell appear to have deteriorated, and vision in water appears to be uncertain, such weaknesses are more than compensated for by cetaceans’ well-developed acoustic sense. Most species are highly vocal, although they vary in the range of sounds they produce, and many forage for food using echolocation. Large baleen whales primarily use the lower frequencies and are often limited in their repertoire. Notable exceptions are the nearly song-like choruses of bowhead whales in summer and the complex, haunting utterances of the humpback whales. Toothed species in general employ more of the frequency spectrum, and produce a wider variety of sounds, than baleen species(though the sperm whale apparently produces a monotonous series of high-energy clicks and little else). Some of the more complicated sounds are clearly communicative, although what role they may play in the social life and ‘culture’ of cetaceans has been more the subject of wild speculation than of solid science.

首句是although引導(dǎo)的讓步狀語，講到taste, smell and vision都變?nèi)趿?，但卻被acoustic sense所彌補了。關(guān)鍵還得了解acoustic的意思，這個詞的意思可以通過考生自己對感官的常識，聯(lián)系前面已