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be动词，意思和用法很多，一般的意思是：是，此种用法，有多种变化形式，is，am，are，was，were，being，been，to be.下面小编告诉你英语be动词的用法口诀，大家一起来看看吧!英语be动词的用法口诀：我(I)用am, 你(you)用are，is连着他(he)，她(she)，它(it)。单数名词用is，复数名词全用are。变否定，更容易，be后not加上去。变疑问，往前提，句末问号莫丢弃。还有一条须注意，句首大写莫忘记。快速搞定there be 句式的五个要点：1. 表示存在，be 的数通常与其后名词的数保持一致。如：There is a book on the desk. 桌上有本书。There are some books on the desk. 桌上有些书。注：在口语或非正式文体中，there’s 有时可放在复数名词前。如：There’s some children at the door. 门口有几个孩子。2. there be 句型可以有各种时态，且时态就由其中的动词 be来体现。如：There is going to be [There will be] a storm soon. 很快就会下暴雨了。There have been many such accidents. 已发生了好几起那样的事故。注：有时可与情态动词连用。如：There may be a storm tomorrow. 明天可能有风暴。There must have been a mistake. 一定出过什么差错。3. there be 句型中的动词 be 有时可根据情况换成其他动词(如live, remain, seem, appear, exist, happen, stand, lie, come 等)。如：There once lvied a poor farmer who had four sons. 从前有个穷苦的农夫，他有四个儿子。There seems [appears] something the matter with her. 她好像是出了什么事似的。注：在这类句型中，有时将地点状语提前(置于句首)，则可以省略 there。如：Behind the house (there) lies a river. 房子后面有条河。4. 在“there be+名词+动词”句型中，其是的动词根据情况可用现在分词(表示在进行或持续)、过去分词(表示被动关系)、不定式(表示动词未发生)等。如：There is a magazine lying on the ground. 地上有本杂志。There is much work to do [to be done]. 有许多工作要做。There were ten people killed in the accident. 事故中有10人丧生。5. 关于 there be 的非谓语形式：一般说来，作动词宾语，要用there to be;作状语要用 there being。如：People don’t want there to be another war. 人们不希望再打战。There being nothing else to do, we went home. 由于没什么其他的事要干，所以我们就回家了。注：用作介词宾语通常要用 there being, 但若用作介词 for的宾语则是个例外(即要用 there to be)。比较：They asked for there to be another meeting. 他们要求再开一个会。We planned on there being another meeting. 我们计划再开一个会。“there be+名词+动词”结构用法归纳：1. there be+宾语+现在分词。现在分词表示主动关系，同时表示动作正在进行：There is someone waiting for him. 有人在等他。There was a man standing in front of me. 我前面站着一个男人。There were some children swimming in the river. 有些小孩在河里游泳。There were a group of young people working in the fields. 有一群青年在地里劳动。有时现在分词可表示一种状态：There’s a piano standing against the wall. 靠墙有一架钢琴。There’re a lot of difficulties facing us. 我们面前有很多困难。There is a door leading to the garden. 有一座门通往花园。有个别现在分词用于该结构时可以表示将来(正如它们可用进行时表示将来一样)：There are ten people coming to dinner. 有10个人来吃晚饭。2. there be+宾语+过去分词。过去分词表示一种被动关系，同时表示动作已经发生：There is nothing written on it. 上面没写东西。There were ten people killed in the accident. 事故中有10人丧生。有时过去分词也可表示一种状态(可转换成被动结构)：There were some old men seated (=who were seated) in the back. 有些老人坐在后面。There is a red car parked (=which is parked) outside the house. 房子外边停着一辆红色汽车。3. there be+宾语+不定式。不定式通常表示动作尚未发生：There was nobody to look after the child. 没有人照顾这孩子。There was a large crowd to send him off. 有一大群人要来给他送行。There was so much to lose that we couldn’t take any risks. 可能会有很大的损失，因此我们不能冒险。【注】当其中的宾语与其后的不定式为被动关系时，可用主动表被动，也可用被动式：There is much work to do [to be done]. 有许多工作要做。有时其中的不定式为系表结构：There is nothing to be afraid of. 没什么可怕的。What was there to be afraid of. 有什么可怕的?There’s nothing to be ashamed of. 没有什么值得羞愧的。There be句式的九个重要句型和结构：1. There is no doing 结构。其意为“不可能…”、“无法…”：There’s no denying the fact. 这一事实不容否认。There is no getting over the difficulty. 这困难无法克服。There is no knowing what he will do next. 无法知道他下一步要干什么。There was no telling when she would be back。没法知道她什么时候回来。2. There is no difficulty in doing sth结构。意为“做某事没有困难”：There is no difficulty in finding his office. 找到了他的办公室没费一点劲。There was no difficulty in carrying out the plan. 执行这项计划没什么困难。3. There’s no doubt… 结构。意为“毫无疑问…”：There is no doubt of his success. 毫无疑问他一定会成功。There could be no doubt that he was one of the best writers in this country. 毫无疑问他是这个国家最出色的作家之一。4. There is no hurry (to do sth) 句式。其意为“不用急(于做某事)”：There’s no hurry to return the book. 现在不急于还书。There’s no hurry, so do it slowly and carefully. 不用赶时间，要慢慢细心地做。5.There’s no need for…结构。其意为“不需要或不必要…”：There is no need for help. 不需要帮助。There is no need for you to go. 你没有必要去。6. There is no question about...结构。其意为“…是毫无疑问的”：There’s no question about his success. 毫无疑问他会成功。There’s no question about his honesty. 毫无疑问他是诚实的。7. There is no question of doing sth 句式。其意为“做某事是不可能的”：There is no question of his coming. 他不可能会来。There is no question of our arriving on time. 我们不可能准时赶到。8. There is no sense in doing sth 结构。意为“做某事没有道理或好处”：There’s no sense in criticizing him. 批评他也没有用。There’s no sense in waiting three hours. 等三小时是不没有道理的。9. There’s no point in doing sth 句式。意为“做某事没有用”：There’s no point (in) telling her about is. 告诉她没有用。There’s no point in wasting time. 耗时间没用。【注】以上有的结构中的no根据情况也可换成其他限定词：There is some difficulty in doing sth意为“做某事有些困难”。There is much difficulty in doing sth意为“做某事许多困难”。There’s a need for…意为“需要或有必要…”。