原文:

　　Professor

　　For decades, psychologists have been looking at our ability to perform tasks while other things are going on, how we are able to keep from being distracted and what the conditions for good concentration are. As long ago as 1982, researchers came up with something called the CFQ-the Cognitive Failures Questionnaire. This questionnaire asks people to rate themselves according to how often they get distracted in different situations, like forgetting to save a computer file because they had something else on their mind or missing a speed limit sign on the road. John?

　　John

　　I've lost my share of computer files, but not because I’m easily distracted. I just forget to save them.

　　Professor

　　And that's part of the problem with the CFQ. It doesn’t take other factors into account enough, like forgetfulness. Plus you really can’t say you are getting objective scientific results from a subjective questionnaire where people report on themselves.

　　解析：

　　這道題的考點詞也很明顯“problem”，一般否定信息，以及“問題”都是需要關注的，容易出考點的地方，所以往下聽，筆記能記到一個否定信息It doesn’t take other factors into account enough, like forgetfulness.

　　我們的筆記可以寫成

　　1.X other factor;對應答案D.

　　文中that's part of the problem暗示這只是幾個問題之一，之后會有并列成分出來，所以后面又跟了一例“Plus you really can’t say you are getting objective scientific results from a subjective questionnaire where people report on themselves.”這個信號詞是Plus，相當于also，in addition, second 這樣的意思。

　　我們的筆記可以記成

　　2. X object，對應答案A

　　不過，需要指出的是，有些雙選題的答案可能會在文章前后出現(xiàn)，或者聽不出文中明顯的并列結構。這種題目的難度比在文章直接出現(xiàn)的并列結構更加難于定位。這個時候我們可能需要借助排除法來解題。

　　TPO15-L1-Q2

　　What are two points the professor makes about parchment?

　　A. It is more long lasting than paper.

　　B. It was inexpensive to produce during the Middle Ages.

　　C. It was the material Archimedes used for his writings.

　　D. Its use for books decreased after the 1400s.

　　原文：

　　During the 1400s, when printing was being developed, paper became the predominant material for books in Europe, but prior to that, it was parchment. Parchment is durable-much more so than paper。

　　解析：

　　根據(jù)原文得知，公元1400s紙變predominant，那么parchment自然下降了，因為parchment以前typically used，所以選D。

　　然而文中并沒有很明顯的并列信號詞，沒有as well as、both…and、in addition、plus等詞，所以并列結構并不明顯，學生容易遺漏下面一句話Parchment is durable-much more so than paper，所以A選項容易漏選。

　　那我們這道題還可以用什么方式解答呢?

　　答案是排除法。通過排除法，我們首先可以排除的是B，因為后面文中一直在強調(diào)羊皮紙很貴，“it could be reused, which came in handy since it was a costly material and in short supply.” 所以不可能像B選項說的那樣，是便宜的。這個選項錯誤的原因是“與原文相反”。

　　在接下來，我們可以排除C，因為C的位置明顯不對，屬于“跨區(qū)”了。眾所周知，聽力筆記是需要分層的，跟問題不在一個層級的選項，哪怕說的再正確也是要排除的。仔細看筆記會發(fā)現(xiàn)，Archimedes這個信息在文章中后段才給出，所以肯定不會對應到這么靠前的第二題，再來，文章說Archimedes' writings were originally done on papyrus scrolls.阿基米德手稿是寫在紙莎草上面，而不是羊皮卷上面。所以排除C.

　　希望上述的分析可以為同學們在以后做托福聽力的雙選題提供一些思路。技巧都是建立在能聽懂文章大意的基礎上，若沒有扎實的聽力基本功助力，還是不能順利的解題。因此，在托福聽力練習中實力和技巧相輔相成，大家努力加油吧！