英语语法His device was designed to perform a sequence of calcula

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/05 07:04:22

英语语法His device was designed to perform a sequence of calculations using instrucations in-put on
His device was designed to perform a sequence of calculations using instrucations in-put on punched cards.
请问using用英语语法怎么解释?

我怎么感觉这像是SSD2课本上的句子……
这个Using是一个做方式状语（或者理解为伴随状语）的非谓语动词.
分析这个句子：首先,主语一定是his device,这个不存在问题；紧接着就有一个动词（被动语态形式,但仍然是动词）design,那么基本上就可以认定这个design是谓语了,再从含义上看,这里主语是“他的设备”,was designed的意思是被设计,两个可以构成合适的搭配,所以design就是谓语了；然后再看后面,to引导的短语,即to perform a sequence of calculations,不定式是不可能做谓语的,所以从含义上可以理解,这里的to perform是做目的状语的,是design的目的,也就是说是为了说明“为了什么而设计”；再看后面,using也不可能做谓语了,毕竟前面已经有了一个谓语,一个句子是不允许有两个谓语的,而这个动词又是现在分词形式,符合非谓语动词的形式,故断定它是一个非谓语动词,而从含义上,这个using跟前面的calculation不构成主谓或者动宾关系,所以不是做calculation的定语,那么就一定是做状语的.至于做什么状语,既然是说明performcalculation的方法,那么就可以理解为方式状语,当然如果理解成伴随状语也没什么问题.

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