請(qǐng)閱讀下面的短文，然后做后面的題目。
Four friends live in a small town. Their names are John, Miller, Smith and Carte. They all have different jobs. One is a policeman, one is a cook, one is a farmer, and one is a doctor.
It’s Tuesday afternoon. John’s son breaks his leg and John takes him to the doctor. The doctor’s sister is Smith’s wife. The farmer isn’t married. He has a lot of hens.
Miller often buys eggs from the farmer. The policeman sees Smith and Miller every day for they are neighbours.
Now who is the policeman? Who is the cook? Who is the farmer? Who is the doctor?
1. John is a _______.
A. doctor B. farmer C. policeman D. cook
2. Miller is a _______.
A. doctor B. policeman C. cook D. farmer
3. Smith is a _______.
A. farmer B. policeman C. cook D. doctor
4. Carter is a _______.
A. doctor B. policeman C. cook D. farmer
【答案與解析】這是一篇推理性文章，要求根據(jù)所給出提示，猜出各自的職業(yè)。
以上4題答案分別為C、A、C、D。有一定難度，且需要一定的推理，現(xiàn)分析如下：
1. 因?yàn)镴ohn 的兒子腿摔斷了要去看醫(yī)生，故可推知John不是doctor。
2. 因?yàn)獒t(yī)生的妹妹是Smith的妻子，故Smith不是doctor(否則兄妹結(jié)婚，不合情理)。
3. 由于 farmer 沒有結(jié)婚，所以 Smith 和 John 都不是farmer (因?yàn)镾mith 有妻子，John 有兒子)。
4. 因?yàn)榫烀刻炜吹絊mith，所以 Smith不是policeman。(from www.nmet168.com)
5. 由以上分析可知，Smith 不是 doctor，也不是 farmer，也不是 policeman，所以只能是 cook。
6. 由于 Miller常從farmer 處買雞蛋，所以 Miller 不是 farmer。
7. 由以上分析可知，John, Miller 和 Smith 都不是 farmer，所以 Carter 一定是farmer。
8. 由于警察每天除看到 Smith 外，還看到 Miller，所以 Miller 不是警察。既然他不是警察，而且前面已分析出 Smith 是 cook，Carter 是 farmer，所以 Miller 一定是 doctor。
9. 最后剩下的 John 便是policeman。
同學(xué)們?cè)谧鲱}時(shí)可以一邊推理，一邊填寫下表：
policeman
cook
Farmer
doctor
John
√
×
×
Miller
×
√
Smith
×
√
×
×
Carter
√
本文來自：逍遙右腦記憶 http://yy-art.cn/gaozhong/132662.html
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