It is far better for one to drink milk_one gets healthful nu

选C.from which,which


从含义上：


第一个空是指人们从奶中得到有益健康的营养,from which指from milk



第二个空是指咖啡没有营养,which指coffee



如果是选A.what,what,我们可以改一下句子：


It is far better for one to drink _ have healthful nutrients,than to drink _contain no nutrients at all.


如果选B,where,as,我们可改一下句子：


It is far better for one to drink milk_one gets healthful nutrients,than to drink coffee,_ it contains no nutrients at all.


as在这里表原因,但一般as是用于句首.


如果选D.in which,what,我们可改一下句子：


It is far better for one to drink milk_one gets healthful nutrients,than to drink _contains no nutrients at all.


但是in which的介词是否地道就是另一回事了.

C
本题考察从句的引导词。
思路：
(1)看主句，判断从句种类：主句缺少什么成分，从句就是什么从句。主句缺少主语，从句就是主语从句，主句缺少宾语，从句就是宾语从句。（主语从句、宾语从句、表语从句、同位语从句统称名词性从句。）主句结构完整，从句则是定语从句或状语从句，定语从句有先行词。每种从句都有不同的引导词，判断出从句类型了，那就是说引导词的范围也就定下了。
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