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作为助动词，be没有具体含义，而是与主要动词一起构成句子的谓语动词。这种情况下，be主要用来构成进行时和被动语态。下面小编告诉你英语be动词助动词的用法，大家一起来看看吧!英语be动词助动词的用法：(一)进行时态中的be此时，be可以与主要动词的现在分词一起，构成各种进行时态。如：He is reading in the library now. (现在进行时)She wasswimming in the river this time yesterday. (过去进行时)They will be arriving in Beijing tomorrow. (将来进行时)We have been learning English for ten years. (现在完成进行时)(二)被动语态中的be助动词be能够与主要动词的过去分词一起构成被动语态，即be done结构。如：Chinese iswidely used around the world nowadays.The window wasbroken by the naughty boy just now.Your watch has already beenrepaired.【注意】助动词be能够构成特殊句型。如：1、be going to dobe going to do表示“打算或将要”。如：He isgoing to visit us next week.It isgoing to rain soon.2、be about to dobe about to do表示“刚要，即将”。与be going to do表“将要”不同的是，be about to do表示的是说完话后马上就要去做或是短期内马上就要去做。如：The plane isabout to take off in five minutes" time.3、be to dobe to do表示“按计划要做”。如：One night an angel came to Mary and told her that she wasto have this special boy.The new store isto be opened tomorrow.“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句式的特殊用法：▲ 英语中的 There，除了表示地点“在那里”外，还有一个非常重要的用法，就是：充当引导词的角色，同时，引起句子结构上的倒装。具体表现在：1. There be 存在句：——最原始最典型的倒装谈到倒装句，人们都不陌生，认为它是一个很重要的句式。其实，在一个人刚刚开始学英语的时候，就已经学到了真正意义上的倒装句：There be 句型。There is a book on the desk. 去掉引导词 There，原来的倒装句则变成：A book is on the desk.What is there on the desk? 实际等于说：What is on the desk?There be是倒装句，表存在，不必细说。2. There + 不及物动词 + 主语：——最常见的倒装There lived an man in the forest long ago. 很久以前，森林中住着一位老人。There stands a temple on the top of the mountain. 山顶上有一座庙。There goes the bell. Let’s have our class. 铃声响了，我们上课吧。最后一句 There goes the bell. There 除了引起句子结构的倒装外，还提醒听者注意。3. “There + be + 过去分词 + 主语” 和“There + be + 过去分词 + 主语”——最特殊的倒装▲“There + be + 过去分词 + 主语”，其实是被动语态的变式，去掉引导词 There，还原本来面目。现在，我直接使用网友的句子为例：There are now published millions of books very year in 　　China　　.等于：Millions of books are now published very year in China.On the following day, there was held a splendid banquet.等于：On the following day, a splendid banquet was held.There was shown at the exhibition an electronic computer made in 　　Shanghai　　.等于：An electronic computer made in Shanghai was shown at the exhibition.▲“There + be + 现在分词 + 主语”，其实是不及物动词进行时态的变式，去掉引导词There，还原本来面目。现在，我直接使用网友的句子为例：There were running in the garden a group of children aged from seven to twelve.等于：A group of children aged from seven to twelve were running in the garden.【我的观点】任何事物的出现都是有原因的，语言现象亦然。我认为，there 的上述用法，体现了语言的3个方面。概括起来，不外乎以下几个原因：1. 语用方面：There 置于句首，具有提示、提醒作用。如：There goes the bell. Let’s have our class.2. 修辞方面：There 置于句首，旨在使句子匀称。如：There was shown at the exhibition an electronic computer made in Shanghai.若说：An electronic computer made in Shanghai was shown at the exhibition. 会显得头重脚轻。3. 语法方面：There 置于句首，改变句子的正常结构。去掉引导词 There 之后，变成正常语序，以上三种情况的例句，分别为：(1) There is a book on the desk. → A book is on the desk.(2) There lived an old man in the forest long ago. → An old man lived in the forest long ago.(3) There are now published millions of books very year in 　　China　　. → Millions of books are now published very year in China.【说明】There置于句首，如果没有实际词汇意义，往往引起句子结构的倒装。如果有实际词汇意义(“在那里”)，则不然。试比较：There stands a temple on the top of the mountain. (There 没有实际意义)There I saw my old friend Tom. (There表示“在那里”)有关there be结构的若干句式：■There is no / some / much / little difficulty / trouble with sth. 做某事(没) 有困难。如：(1) There is some difficulty with the text. 这篇课文还有点困难。(2) There is little trouble with the matter. 这件事情没有什么麻烦。■There is no / some / little / much difficulty / trouble in + doing. 做某事有困难。如：(1) There is much difficulty in finishing the work in the given time. 在规定的时间内完成这项工作还很困难。(2) There is no trouble in reading the article without a dictionary. 即使不用词典读这篇文章也不难。■There is no doubt about / of sth. 毫无疑问…。如：(1) There is no doubt about his coming here. 毫无疑问，他会来。(2) There is no doubt of his words. 对他的话毋庸置疑。■There is no doubt that –clause. 毫无疑问…。如：(1) There is no doubt that he has made great progress this year. 毫无疑问，他今年进了大步。(2) There is no doubt that he likes hunting. 毫无疑问，他喜欢狩猎。■There is no hurry (+ to do sth) 不用急于干某事。如：(1) There is no hurry to leave, for it is early. 天还早，不要急于离开。(2) There is no hurry to answer this question, but use your head. 动动脑筋，不要急于回答这个问题。■There is no need for (sb. to do ) sth. 没有必要怎么样。如：(1) There is no need for him to go there. 她没有必要去那儿。(2) There is no need for such a meeting. 没有必要开这样的会议。■There is no question about sth. 毫无疑问…。如：(1) There is no question about his arrangement. 对他的安排毋庸置疑。(2) There is no question about what he said. 对他的话毋庸置疑。■There is no question of doing sth. 毫无疑问…。如：(1) There is no question of his leaving for holiday. 他肯定去度假了。(2) There is no question of his inviting us to his party. 他肯定会邀请我们去参加他的聚会。■There is no sense in doing sth. 做某事没有道理或说不过去。如：(1) There is no sense in forcing him to do what he doesn’t like to. 强迫他做他不喜欢做的事情没有道理。(2) There is no sense in leaving him alone when he is in trouble. 当他遇到困难时，扔下他不管，没有道理。■There is no point in doing sth. 做某事没有用。如：(1) There is no point in regretting. 后悔没有用。(2) There is no point in reasoning with him. 跟他说道理没有用。■There is no doing sth. 不可能…;无法…。如：(1) There is no telling who will win the match. 无法断定比赛谁赢。(2) There is no giving you a reply before deciding it. 在决定前不可能给你答复。