There be...是一种较为常见的句子结构，通常用于表达 "某地有某人或某物"，在使用此句型结构时，应注意下列问题：
1) 主语和谓语必须在数上保证一致
例句：
There is a small village below the mountain.
2) There be结构不但可以应用各种一般时态，还可以应用于完成时态中。所以，对There be结构的时态方面的要求需要根据具体的要求进行变化。
例句：
There have been no letters from my parents since I left home two years age.
3) 在There be结构中除了运用动词be之外，还可以用seem，appear，happen，exist等。在这种句型中，谓语的单复数形式依靠近谓语的主语而定。
例句：
There seemed to be no one who really understood me.
强调句二、It is/was... that强调句型
It is/was + 被强调的成分 + that/who, 所强调的可以是单词、短语，也可以是从句，但必须保证其结构完整。被强调的成分可以是主语、表语、宾语、同位语、状语等，但不能是定语或谓语。
例句：
It was I that/who didn't realize all my mistakes until you told me yesterday. (对主语进行强调)
It was him who we met at the school gate. (对宾语进行强调)
It was in the park that Tom lost his watch. (对状语进行强调)
在写此类句子时应注意以下几个问题:
1) 在这种强调句型中，一般应用that进行连接，that没有实际意义，之气语法连接作用。指人是，可以用who。在非正式的文体中这些引导词也可以省略。
例句：It was Mum (that/who) made me a promise to send me to the best middle school.
2) 强调句中的时态要根据原句的时态而定。及原句为过去某种时态，则强调句中的be就用过去时;原句为现在的某种时态，强调句中就用be的现在时态。有时还可以用It might be/must have been/can't be...that等句式。
例句：
It was because I was stuck in the traffic that I came late.
It might be tomorrow evening that the news will be broadcast.
3) 被强调的部分如若是句子的主语，that/who之后的谓语动词在人称和数上应与句子的主语保持一致。
例句：
It is I that/who am your friend that will come to you.
NB(强调句的判断): 强调句型可以通过 "还原法"来进行判断，若删除强调句型结构后，句子能还原为一个完整的句子，就是强调句。强调句可以看作是用固定的表达-It is/was...that(which, who, whom, where, when)...，将句子的某个成分(除了谓语)进行重点强调。但是，去掉这个固定的部分，句子本身并无任何变化。
本文由作文地带整理。
