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求关于BE to Do sth的用法和意思

be to do: (1)表示事先商定、安排或准备要做的事情。如: The students are to meet at the school gate tomorrow. 明天学生们将在学校大门口集会。 (2)表示可能性,必要、责任、义务、禁止等。如: Her necklace was not to(couldn't)be fo...

be +动词不定式(即be + to do sth.)的用法如下:1.表示按计划或安排要做的事。例如:She is to be married next month.她将于下个月结婚。The Queen is to visit Japan in a week’s time.女王将于一周后访问日本。这种结构也可用于过去。was /...

没有 。 有sb / sth be believed to do sth. 例句: The attack is believed to have been carried out during the early morning hours 据信进攻是在清晨时发起的。 Such a diet is widely believed to offer protection against anumber of ca...

be to do sth 常见用法有很多—— 其中有按照计划,安排做某事,按照事物发展趋势一定,准会做某事。 还有一个用法就是按照要求必须或者应该做某事,习惯用第二人称做主语。 因此,你给的句子用法正确。

be about to do:表即将做某事. e.g The plane is about to take off. 但不能与时间状语连用,不能说 I am about to do my homework tomorrow. 只能和when从句连用 I was about to do my homework when my father came in.

老哥,你划错了,这里的知识点是to do with 不是is to do

be programmed to do sth.“按计划(或程序)去做某事” be programmed属于被动语态结构。比如: The heating system is programmed to start tomorrow.按计划,供暖系统明天开始运行。 其主动结构是:programme ... to do sth 上述的例句也可以说...

be ready to do 指 随时可(乐意做某事) 后面跟动词原型 be ready for 指 为...做好准备 后面跟名词 I am ready to help you 我随时可帮助你(乐意) I am ready for the test 我已经为考试做好准备(没有乐意的意思)

区别: 1、be surprised to do sth 是惊讶地去做某事。 If you walk into my room, I am sure you will be surprised to see rabbits everywhere. 如果你走进我的房间,我敢肯定你看到到处都是兔子会吃惊的。 2、be surprised doing sth 是惊讶...

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