We want to make clear the material____the machine is made.A.which B.that C.of which D.We want to make clear the material____the machine is made.A.which B.that C.of which D.from which选D,为什么?求详解

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Wewanttomakeclearthematerial____themachineismade.A.whichB.thatC.ofwhichD.Wewanttomakeclearthemateria

We want to make clear the material____the machine is made.A.which B.that C.of which D.We want to make clear the material____the machine is made.A.which B.that C.of which D.from which选D,为什么?求详解
We want to make clear the material____the machine is made.A.which B.that C.of which D.
We want to make clear the material____the machine is made.
A.which B.that C.of which D.from which
选D,为什么?求详解

We want to make clear the material____the machine is made.A.which B.that C.of which D.We want to make clear the material____the machine is made.A.which B.that C.of which D.from which选D,为什么?求详解
定语从句,要填的词做引导词,使用还原原则,还原之后得到的是
The machine is made from the material.
容易误选的是C项,be made of 和 be made from的区别是
be made of是指从合成物可以看出原材料的情况
而be made from看不出原材料.
原文用了material这样一个笼统的词,显然是看不出原材料是什么的.

这题考查定语从句的引导词,首先排除AB,因为这里的意思是“由……制造”的,需要“介词+关系代词”的结构,区别是be made from表示“看不见原料”,而be made of表示“看得见原料”,从题目意思上“我们想弄清楚……”应该是看不见原料才要弄清楚的,所以选D...

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这题考查定语从句的引导词,首先排除AB,因为这里的意思是“由……制造”的,需要“介词+关系代词”的结构,区别是be made from表示“看不见原料”,而be made of表示“看得见原料”,从题目意思上“我们想弄清楚……”应该是看不见原料才要弄清楚的,所以选D

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首先根据句意那个机器由什么材料制成,AB排除
make of和make from都有“由……制成”之意,但make of只看得出原材料的情况,make from只看不出原材料的情况。根据句意,既然有此问,必然看不出原材料,故选D。望采纳