18．A.went through

　　B．got through

　　C．looked through D．saw through

　　解析　通过交谈，作者知道了母亲如何与父亲相识和他们如何“渡过”那些困难时光。

　　答案　A

　　19．A.friendly

　　B．kind

　　C．loyal

　　D．important

　　解析　根据上下文内容可知，这些故事对作者而言很“重要”。

　　答案　D

　　20．A.ruined B．damaged

　　C．helped D．affected

　　解析　根据第一段第一句的内容可知，与母亲约会对作者的婚姻有“帮助”。

　　答案　C

　　Ⅲ.阅读理解

　　Many of us still tend to think that emotions can affect reasonablethought，and sometimes land us in trouble.But in recent

　　years psychologists have taken quite a different view.Keith Oatley，Professor of Psychology at Glasgow University，is involved in the research which shows the fundamental importance of emotions.

　　He believes we_are_very_ambivalent_about_them：we think of our emotions as being unreasonable，but we also consider them as essential to being human.For example，Mr Spock，a character in the television series Star Trek，is super­intelligent and he has no emotions at all.However，he is never made captain of the spaceship.Maybe，this is because Mr Spock is not the kind of person you can share your feelings with—a person who shows his emotions.

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