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1、精品文档实例解析托福阅读选非题实例解析托福阅读选非题对于这种题型，解题步骤如下：1. 鉴别题型：大写单词EXCEPT / NOT2. 审题：寻找题干核心词3. 定位：确定出题区间，找到列举信息4. 排除：排除符合原文要求的三个选项下面我们借官方真题Official例题来看看选非题的解题过程。官方真题Official34-3 Protection of Plants by Insects【Paragraph 5】Extrafloralnectaries at the base of each sepal attract severalkinds of insects, but 96 percen
2、t of them are ants, several different species ofthem. When buds are still small, less than aquarter of an inch long, the sepalnectaries are already present and producing nectar. They continue to do so asthe flower develops and while the fruit matures. Observations leave little doubtthat ants protect
3、 morning glory flowers and fruits from the bined enemy forceof grasshoppers, caterpillars,and seed beetles. Bentley pares the seedproduction of six plants that grew where there were no ants with that ofseventeen plants that were occupied by ants. Unprotected plants bore only 45seeds per plant, but p
4、lants occupied byants bore 211 seeds per plant. Althoughants are not big enough to kill or seriously injure grasshoppers, they drivethem away by nipping at their feet.Seed beetles are more vulnerable because theyare much smaller than grasshoppers. The ants prey on the adult beetles, disturbfemales a
5、s they laytheir eggs on developing fruits, and eat many of the eggsthey do manage to lay.12. According to paragraph 5, antsdefend morning glory plants from seedbeetles in each of the following waysEXCEPTA. driving adult beetles off the plants by nipping at their feetB. catching and eating adult beet
6、lesC. eating beetle eggs they find on developing fruitsD. making it difficult for beetles to lay eggs on developing fruitsEXCEPT选非过程：1. 审题：找到题干核心词seed beetles2. 定位：确定出题区间，找到列举信息Although ants are not big enough to kill or seriously injure grasshoppers,they drivethem away by nipping at their feet. See
7、d beetles are more vulnerablebecause they are much smaller than grasshoppers. The ants prey on the adultbeetles, disturb females as they lay their eggs on developing fruits, and eatmany of the eggs they do manage to lay.3. 排除：排除符合原文要求的三个选项，注意选项的同义改写B. catching and eating adult beetles抓捕和吃掉成年甲壳虫= the
8、 ants prey onthe adult beetles 蚂蚁捕食成年甲壳虫C. eating beetle eggs they find on developing fruits吃掉在水果上的甲壳虫卵= eat many of the eggs they do manage to lay 蚂蚁吃掉甲壳虫成功产下的卵D. making it difficult for beetles to lay eggs on developingfruits使甲壳虫很难再发育的水果上产卵= disturb females as they lay their eggs on developing fru
9、its蚂蚁干扰正在水果上产卵的雌性甲壳虫有同学说，A选项nipping at their feet(夹它们的脚)也对应了原文they drive them away by nippingat their feet，那我们来看看nipping at their feet这句话原句详细信息：Although ants are not bigenough to kill or seriously injure grasshoppers,they drive them away by nippingat their feet.尽管蚂蚁还缺乏以大到可以杀死或严重伤害蚂蚱，但是蚂蚁可以通过夹它们的脚赶走蚂
10、蚱。所以，此题最后的答案是：ATIPS:1. 符合题干要求的三个选项一般以列举形式出现，比方a, b, and c;或者first，second 、moreover /furthermore, third / final等。2. 当四个选项都在原文当中出现时，必定有一个答非所问，请注意看清题干要求官方真题Official20-1 Westward Migration【Paragraph 2】Why were these hundreds of thousands of settlersmost of themfarmers, some of them artisansdrawn away fr
11、om the cleared fields andestablished cities and villages of the East? Certain characteristics of Americansociety help to explain this remarkable migration. The European ancestors ofsome Americans had for centuries lived rooted to the same village or piece ofland until some religious, political, or e
12、conomic crisis uprooted them and drovethem across the Atlantic. Many of those who experienced this sharp break thereafter lacked the ties that had bound them and their ancestors to a single place.Moreover, European society was relatively stratified; occupation and socialstatus were inherited. In Ame
13、rican society, however, the class structure wasless rigid; some people changed occupations easily and believed it was theirduty to improve their social and economic position. As a result, many Americanswere an inveterately restless, rootless, and ambitious people. Therefore, thesesocial traits helpe
14、d to produce the nomadic and daring settlers who kept pushingwestward beyond the fringes of settlement. In addition, there were otherimmigrants who migrated west in search of new homes,material success, and betterlives.4. According to paragraph 2, all of the following are reasons why Americansmigrat
15、ed westward EXCEPTA. the desire to move from one place to the nextB. the hope of improving their socioeconomic statusC. the opportunity to change jobsD. the need to escape religious or political crises点评：此题是一道非常经典的选非题，很多同学在做此题时都会很快的排除D选项，因为D：the need to escapereligious orpolitical crises实在太容易在原文当中找到
16、对应的句子：The European ancestors of some Americans hadfor centuries lived rooted to the same village or piece ofland until somereligious, political, or economic crisis uprooted them and drove them across theAtlantic.所以，很多同学在排除D选项之后，好得意哟!但，D选项就是咱们的正确答案!What!下面，我们来看一下解题过程。EXCEPT 选非过程：1. 审题：reasons, Americans migrated westward美国人向西部迁移原因2. 定位：确定出题区间，找到列举信息本段都在讲美国人向西迁移的原因，出题范围较大;但是，我们可以很快的找到表列举信息的信号词moreov
