小升初英语知识点精讲There be 结构和 have 、 has 的用法There is a dragonfly.There is a butterfly.There are two frogs.There are many fish.知识1There be 句型表示某处有某物结构There is/ are + 名词 + 地点状语概念用法There is a book on the desk.There is an egg in my bowl.There is some water in the glass.用法There are two tomatoes on the desk.There are many people in the room.还有什么词汇表示“有”呢？表示某人拥有某物（某人），位于主语后。 当主语是第三人称单数时，应用 has. I have three books.She has a brother.知识2 1. There ____ a doll in the toy box. A. is B. are 解析 : doll 是名词单数 , 因此 be 动词要用 单数 is. 2. There ____ a lot of trees in the park. A. is B. are 解析 : trees 是名词复数 , 因此 be 动词要用 复数 are. 3. Jenny _____ a sister. Her name is Lynn. A. have B. has解析 : Jenny 是第三人称单数，因此动词要 用 have 的三单形式 has.There _____ a cat and two dogs under the tree. A. is B. are A易错1若句子中有几个并列主语时， be 动词的形式要最近的一个主语在人称和数上保持一致 , 这叫做“就近一致”。There _____ three students in the classroom . A. is B. are C. haveB易错2There be 和 have 、 has 同为“有”，但不能同时使用。There be 一般用于句子开头；have 用于句中，主语后。 There be 句型： “存在有”， 单数 is ， 复数 are have 、 has ： “所属有”， has 紧跟三单后
