GMAT考试中语法改错SC题型让考生比较头疼的一点在于考试本身覆盖的语法点太多，大家别考时间不够就很有可能出现遗漏或者来不及准备的情况。有鉴于此小编建议大家从高频热门语法点开始优先准备起来。下面小编就来分享it的具体用法技巧。
GMAT语法大百科语法点：it的用法说明
1、用作人称代词(personal it)
代替前文提到过的事物，it作真实主语或宾语。
2、用作指示代词(demonstrative it)
相当于this或that，it有时不特指某件东西，而代表前面已提到的或将会发生的某件事情。
3、用作非人称代词(impersonal it)
代词it可用来指除人以外的一切生物和事物，无阴阳性之分。可指时间、距离、度量、价值、自然现象(天气、气体、阴暗等)。
GMAT高频词汇it用法实例讲解
According to a recent poll, owning and living in a freestanding house on its own land is still a goal of a majority of young adults, like that of earlier generations.
(A) like that of earlier generations
(B) as that for earlier generations
(C) just as earlier generations did
(D) as have earlier generations
(E) as it was of earlier generations
选项分析：
其实，题目很简单，只要看懂这里的 as it was of earlier generations 实际上是 as it was a goal of earlier generations 的省略形式
而owning and living in a freestanding house on its own land 是动名词短语作主语，谓语用单数
所以最后答案是E。
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