七年级下册英语动词的用法 七年级上册英语be动词有哪些

动词be有许多意思和用法 。大致意思是:是的,这种用法有很多变体,比如is,am,are,was,was,being,be,tobe 。下面小编给你讲讲七年级英语上册动词be的用法.让我们来看看吧!
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.

七年级下册英语动词的用法 七年级上册英语be动词有哪些

文章插图

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 。

七年级下册英语动词的用法 七年级上册英语be动词有哪些

文章插图

■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 。
【七年级下册英语动词的用法 七年级上册英语be动词有哪些】(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 。