今天你注意到雅思閱讀填空題中的介詞了嗎？沒有的話，我明天再來問一遍。
太多「烤鴨」寶寶都知道雅思閱讀有很多套路，但往往都是學了芝麻忘了西瓜，前說後忘，或者老師帶著做題就記得，自己單獨做又開始暈乎乎。所以蘇州環球教育張雯怡老師現在統一講講很有用但是很容易被大家忽略的介詞。
首先介詞有哪些？
按構詞分類的話，有簡單介詞in, on, with, by, for, at, about, under, of等，合成介詞into, onto, without, within, throughout等，重疊介詞from among, until after, at about等，介詞短語和分詞介詞ing。
按用途分類的話，表示時間、方位、進行、原因、方法、數量、與不及物動詞搭配加賓語或者變被動。
其次，具體在填空題中怎麼發揮作用？
這個方法特別針對閱讀水平在6分左右的學生，因為該分數段的學生有一定詞彙量，但是不太能看出同義詞替換或者長難句的理解，所以需要依靠一些空格前後的解題點來幫助"鎖定"正確答案。
介詞的一大作用在於定位，舉例C8T1P3 Question 39
The 39 _______________ between different test results was put down to the fact that sample groups were not big enough. 發現空格後有介詞between，可以定位至原文" Yet some parapsychologists remain disturbed by the lack of consistency between individual ganzfeld studies. 很明顯需要填空的內容是the與between中間的"lack of consistency"，單詞不認識也能填，so easy.
同樣道理，C6T4P3 Question 37
In addition, action can be taken through the _____________. 發現空格前有介詞through，可以定位至原文"There are ways of dealing with the topic through the curriculum, using video, drama and literature." 也挺明顯空格前的冠詞和介詞都對應，所以填空答案是"curriculum"，介詞快速定位解題get了嗎？
介詞的另一大作用在於解題，區分幹擾項
再舉個例子：C11T1P1, Question 2, Question 7
Vertical farms would be located in 2_________________, meaning that there would be less need to take them long distances to customers.
be located in 詞組表明空格處需要填坐落的位置，可定位到原文"multi-storey buildings in which food crops are grown in environmentally controlled conditions. Situated in the heart of urban centers." 這兩句話中有三個in，不難發現in which 是定語從句的結構，不涉及解題，多半同學會被environmentally controlled conditions騙到，那麼此時注意be located in 同義替換應為situated in，所以正確答案是urban centers。
來再一個例子，加深理解：The most probable development is that food will be grown on 7 __________ in towns and cities. 不難定位到原文"While it is possible that much of our food will be grown in skyscrapers in future, most experts currently believe it is far more likely that we will simply use the space available on urban rooftops."
該句有2個介詞，"on, in"都加粗了，粗心的烤鴨看到"摩天大樓skyscrapers"就激動得不行馬上寫答案了，但實際空格前的介詞是on,所以正解應該是urban rooftops喲。
通過上面的分析，本文旨在引起大家對雅思閱讀填空題特殊小詞的重視，並給出一些學習意見。技巧雖好，但不要貪杯哦，備考周期比較長的同學，還是建議大家扎紮實實提高英語的閱讀能力。