many ways have been found_small and simple machines to process
来源:百度知道 编辑:UC知道 时间:2024/06/16 06:37:51
large and complicated machine parts
a by using
b to use
c using
d used
a by using
b to use
c using
d used
首先,排除c,d选项,表被动的been found不可以直接接动词
后应调整语序(to process指得到处理,来处理的意思,先省略)
many ways to use small and simple machines have been found
many ways by using small and simple machines have been found
然后反复阅读,理解句中的含义
应该选A,许多方法被发现通过小而简单的机器来处理
若选B的话,应为不定式做目的状语,(不是动词不定式做定语)
仔细观察一下,to use和to process是并列的,就不能调整语序了,原来可以翻译为“ 已经找到了很多可以启动进行简易机器的方法”就不能成立
因此,答案应为A
how
已经找到了很多可以启动进行简易机器的方法。
B 动词不定式做定语 修饰ways 许多这样的……方法被找到
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