分享:简单的PARAPHRASE真的很有效果

ky86

今天看了一个题目,光是流水帐一样看过去,一点效果都没有,但是后来在草稿纸上稍微PARAPHRASE了两笔,发现立刻豁然开朗.

A recent survey of all auto accident victims in Dole Country found that, of th severely injured drivers and front-seat passengers, 80 percent were not wearing seat belts at the time of their accidents. This indicates that, by wearing seat greatly reduce their risk of being severely injured if they are in an auto accident.

The conclusion above is not properly drawn unless which of the following is true?

A> Of all the drivers and front-seat passengers in the survey, more than 20 percent were wearing seat belts at the time of their accidents.

B> Considerably more than 20 percent of drivers and front-seat passengers in the Dole Country always wear seat belts when traveling by car.

C> More drivers and front-seat passengers in the survey than rear-seat passengers were very severely injured.

D> More than half of the drivers and front-seat passengers in the survey were not wearing seat belts at the time of their accidents.

E> Most of the auto accidents reported to police in Dole Country do not involve any serious injury.

我的解题方式用PARAPHRASE如下:

1) 80% WITHOUT SEAT BELT THEN ACCIDENTS结论是WITH SEAT BELT THEN NO ACCIDENTS

结论需要取非结论(ACCIDENT)=NO ACCIDENT

所以对条件取非(80% WITHOUT SEAT BELT)=20% WITH SEAT BELT

选B.

2) 用集合的思维方式做也很奏效的:集合1: 80% WITHOUT SEAT BELT THEN ACCIDENT, 集合2: WITH SEAT BELT NO ACCIDENT, 文章中没有提到其他的情况,比如使用气囊啊,吃了还魂丹啊,抑或是半死不活的,等等等等^_^,那么集合1+集合2=全部100%,自然集合2的人应该>=20%了.

注意不要钻牛角尖于more than 20%哈~~~同比其他选项B绝对是最好的.

wycg

顶一下.有些CR题是算数题,建议用这个方法做.

问一下LZ, 这题答案不是A吗?