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.下面小编告诉你七年级英语上册动词be的用法，大家一起来看看吧! 七年级英语上册动词be的用法: 一、be 动词做助动词 助动词be 有两个基本用法，一是与谓语动词一起构成各种时态，二是构成被动语态。 “be + 现在分词组”成各种进行式时态。例如: Tony's maid is washing his new car. The children are playing in the field. Samuel was eating when I came in. We have been living here since 1959. This time next day they will be sitting in the cinema.
[图片0] 二、注意事项 英语句子中，为了表达时态或被动语态的需要，常常会出现几个助动词连在一块儿使用。也就是说，助动词be会和其它助动词一起使用。这时候，整个句子的一般疑问句和否定句，就不一定是对be 进行变化了，而是以第一个助动词为主进行变化。即哪个助动词在先，就以它为主进行变化。例如: [肯定句] All the wonderful birds can be found in our Bird Park. (助动词有两个:can be ) [疑问句] Can all the wonderful birds be found in our Bird Park? (移第一个can) [否定句] All the wonderful birds can not be found in our Bird Park. (在第一个can 后加not) [肯定句] I have been there before. (两个助动词:have， been ) [疑问句] Have you been there before? [否定句] I have not been there before. [肯定句] I shall be having my supper at six tomorrow evening. (两个助动词:shall， be ) [疑问句] Will you be having my supper at six tomorrow evening? [否定句] I shall not be having my supper at six tomorrow evening. there being…的用法: there being为there be的非谓语形式之一，它在句中主要用作状语或作介词宾语。 ■用作状语 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。 There having been no rain, the ground was dry. 由于没有下雨，所以地面很干。 【注】有时可与状语从句转换: There being no further business , I declared the meeting closed. 由于没有别的事了，我宣布闭会。 As there was no further business, I declared the meeting closed. 由于没有别的事了，我宣布闭会。
[图片1] ■用作介词宾语 There is now some hope of there being a settlement of the dispute. 现在有点希望可以解决这次争端。 there to be…的用法: there to be 为 there be 的非谓语形式之一，它在句中主要用作状语或介词for的宾语。 ■用作动词宾语 该结构可用作某些动词(如like, prefer, hate, want, mean, intend, expect, consider 等)的宾语: I don’t want there to be any misunderstanding. 我可不希望有任何误解。 Students hate there to be too much homework. 学生讨厌做太多的家庭作业。 We expect there to be more discussion about this. 我们期望能对此展开更多的讨论。 【注】在let there be句式中，动词be不带to: Don’t let there be any noise. 不允许有任何吵闹。 Let there be no mistake about it. 这事不要出错。 ■用作介词for的宾语 They asked for there to be another meeting. 他们要求再开一次会议。 【注】用作介词宾语一般用there being，但用作介词for的宾语时，只能用there to be。比较: They planned on there being another meeting. 他们打算再开一次会议。 They planned there to be another meeting. 他们打算再开一次会议。 含there be结构的几类重要句式: 一、There is no / some / much / little difficulty / trouble with sth. 做某事(没) 有困难 (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。 二、There is no / some / little / much difficulty / trouble in + doing. 做某事有困难 (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。 三、There is no doubt about / of sth. 毫无疑问…… (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。 四、There is no doubt that –clause. 毫无疑问…… (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。 五、There is no hurry (+ to do sth) 不用急于干某事 (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。