there be 句型小总结
there be 句型小总结
1. 基本结构 ：There be +主语 + 地点 /时间状语。如：
There is a computer in the room. 房间里有一台电脑。
There are two TV plays every evening. 每晚有两场电视剧。
2. 主谓一致： 要采取就近一致原则。如：
There is a pen, two rulers in the box. 盒子里有一只钢笔，两把尺子。
There are two boys and a teacher at the school gate. 门口有两个男孩，一个老师。
3. 主语后的动词形式：在there be 句型中，主语与动词是主动关系时用现在分词;是被动关系时用过去分词。如：
There is a purse lying on the ground. 地上有一个钱包。
There are five minutes left now. 现在还有5分钟。
4. 反意疑问句。反意疑问句应与there be对应，而不是依据主语。如：
There is a radio on the table, isn't there? 桌子上有一台收音机，是吧?
There are more than fifty classes in your school, aren't there? 你们班有50多名学生，是吧?
5. there be 与have的替换：there be表示所属时可与have替换。
There is nothing but a book in my bag. =I have nothing but a book in my bag. 包里只有一本书。
6. there be后接不定式时常用主动形式表示被动意义。如：
There is a lot of work to do. 有许多工作要做。
注意：当该句型主语是something, anything, nothing等不定代词时，后面的不定式用主动形式或被动形式，意义各不同。
There is nothing to do. 没有事可做。
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