大全-13-14

小兔牙

Among the more effective kinds of publicity that publishers can get for a new book is to have excerpts of it published in a high-circulation magazine soon before the book is published. The benefits of such excerption include not only a sure increase in sales but also a fee paid by the magazine to the book's publisher.

Which of the following conclusions is best supported by the information above?

(A) The number of people for whom seeing an excerpt of a book in a magazine provides an adequate substitute for reading the whole book is smaller than the number for whom the excerpt stimulates a desire to read the book.
(B) Because the financial advantage of excerpting a  new book in a magazine usually accrues to the book's publisher, magazine editors are unwilling to publish excerpts from new books.
(C) In calculating the total number of copies that a book   has sold, publishers include sales of copies of   magazines that featured an excerpt of the book.
(D) The effectiveness of having excerpts of a book published in a magazine, measured in terms of increased sales of a book, is proportional to the circulation of the magazine in which the excerpts are published.
(E) Books that are suitable for excerpting in high-circulation magazines sell more copies than books that are not suitable for excerpting.

答案：A

请问怎么得来的呢？这种归纳的结论题有什么好办法吗？

谢谢。

myice

引用mindfree大师的经典回答

这是一道很好的例题. 它的选项有迷惑性在于不止一个选项读上去是正确答案. 实际上, 根据所问问题, A,B,D,E都可能是正确答案. 这也是我认为做CR不能单凭直觉的原因. 因为平时做了很多真题, 看了很多答案, 如果不认真理解对错的原因, 而是凭对正确答案的"脸熟", 此题很可能误选.

此题关键在于问题. 是结论或推论.

首先认真读题: 第一句(A), 可能是结论, 说在high-circulation的杂志上excerpting soon before publishing有效; 第二句是premises: increased sales (B1)和fees paid by M (B2). 所牵涉的事物: books, soon before it is published, high-circulation Mag, icreased sales, fees.

推论题(inference)一般可以用取非来做. 即取非后原结论不成立. A为答案. A的意思是读完摘录的人中, 更想买此书的人数要大与看了摘录就不想买此书的人.取非后, B1不成立, 则结论错.

下面我解释一下其它选项:

B看上去是削弱题(weakean, cast doubt)答案. 但我认为不是. 这正体现了ETS的tricky. 由B本身不能反驳原文的逻辑关系A-->B1 and B2. 既, 即使杂志不情愿刊登, 此逻辑关系依然hold. 如果把原题改动一下, 结论变为:A-->在杂志上刊登摘录是一种很popular的方法, 则Bweaken. 因为杂志不愿意刊登, 所以popular的可能性小.

D是support题型的答案. 和A一样, 含有数学概念, 也极象正确答案. 但是我在以前的回复中讲过, 数学概念稍微复杂一些, A是很绝对的比较,N>M, 而D是间接的比较N=rM. 如果此等式不成立(取非),原结论成立吗? 当然. 如果N=M+p, 结论一样成立. 所以不是inference

E也象正确答案, 但是它是weaken结论:所有书在杂志上excerpt后都卖得一样好. 和原文无关.

还有，做ＣＲ时不要跳跃式阅读，要抓住每个关键的名词，动词，形容词和副词．比如此题中的状语soon before it is published完全可以据此出一题：weaken 答案：人们在临近书发行时看到excerpt就不想买了．

我的建议是:读懂文章，找到相关事物，分析选项．

feiya

解释很经典