【导语】海阔凭你跃，天高任你飞。愿你信心满满，尽展聪明才智;妙笔生花，谱下锦绣文章;冷静细心，发挥如鱼得水;心想事成，努力备考，考到理想院校!以下是
句型一
... has an ambivalence... it ... but ...
原文
The car has a curious ambivalence：it creates and then it destroys mobility. The car tempts people further out and then gives them the appalling problem of getting back. It makes them believe they can spend Sunday in Brighton, but makes it impossible for them to return before, say, two in the morning. 汽车有着令人奇怪的自相矛盾：它创造了机动性，又亲自将其毁掉。汽车诱使人们更多地远行，然后又使他们面临如何返回的巨大难题。它使人们相信能在布莱顿度过周末，却无法在凌晨两点返回。
巧用
Women has a ambivalence when it comes to hunting for spouses: they hope that their future husband can be handsome. But they fear a handsome husband may attract too much attention and be seduced by other women. 女性择偶时有种矛盾心态：她们希望找个帅哥，又担心太帅的男人会吸引过多目光，并被别的女人勾走。
点评
利 弊说明是议论文中频繁采用的写作手段，其方式一般分为两种：一种是将优点和缺点分别罗列，构成比较的两大整块，即A, A, A…, B, B, B…型(A为优点，B为缺点，下同);另一种则是将优点、缺点交叉罗列，即上例使用的A，B，A，B…型。相对而言，后者条理更加清晰，读者更易理解。
考博英语是各博士研究生招生院校初试必考科目，也是复试分数线的其中一项，所以考博英语应该引起大家的重视。考博英语的复习大家还是要先了解所要报考的研究生院考博英语题型(各院校考试题型难度不同)，根据题型及自己的薄弱环节有针对性的复习。
