be：
v.是有存在位于在(某处)(在某时或某地)发生；
aux.与过去分词连用构成被动语态与现在分词连用构成进行时用于反意疑问句；
第三人称单数： is现在分词： being过去式： was were过去分词： been扩展资料
A free trade agreement would be advantageous to both countries.
自由贸易协定对两国都会有利。
She was not only intelligent but also very musical.
她不仅聪明，而且极具音乐天分。
The first part of the plan has been safely accomplished.
计划的第一部分已顺利完成。
Patience is one of the most important attributes in a teacher.
耐心是教师最重要的品质之一。
动词be后面加过去分词，构成被动语态，表示被动的动作。此时的be动词不叫系动词，而是助动词，已经完全丧失了系动词的一切功能，只作为语法变形的辅助工具存在。
请看例句：
The meeting will be held next Friday. (be+ held)
会议在下周五召开。
Anyone who breaks the law has to be punished by law. (be + punished)
任何违反法律的人必然受到法律的惩罚。
He was brought up by his grandparents. (was + brought)
他是由祖父母养活成人的。
1、Be动词做连系动词可用下边的结构： 主语 + be +表语，这里的表语可以是名词，代词，形容词，介词词组，动词不定式等。2、Be动词作助动词， be + 动词现在分词 可构成进行时态
3. 作助动词， be + 动词过去分词 可用于被动语态。扩展资料
1. Instead of complaining about what's wrong, be grateful for what's right.
别抱怨不好的事，要对好的事心存感恩。
2. The difference between who you are and who you want to be is what you do.
你是什么样的.人和你想成为什么样的之间的差距就是，你做了什么。
3. What will be the effect of the alliance between IBM and Apple?
若IBM公司和苹果公司联手将会有什么效果呢？
4. Three hundred million dollars will be nothing like enough.
3亿美元远远不够。
5. He did not like to be caught out on details.
他不喜欢在细节上被人抓住把柄。
6. The road to peace will be long and drawn-out.
通往和平的道路将很漫长。
7. I would prefer him to be with us next season.
我更希望他下一个赛季和我们在一起。
8. He's still learning and when he hits his stride, he'll be unstoppable.
他仍旧处在学习阶段，一旦驾轻就熟后将势不可挡。
9. More people would be attracted to cycling if conditions were right.
如果天气适宜，会有更多的人被吸引到骑自行车的行列中来。
10. The building he was lodged in turned out to be a church.
原来，他租住的那栋建筑是一座教堂。
11. I wanted the front garden to be a blaze of colour.
我想让门前的花园变得五彩缤纷。
