1.I know she's unhappy,despite all her arguments _______.

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1.I know she's unhappy,despite all her arguments _______.
A.on the contrary B.to the contrary C.in contrast
这三个有什么区别么?
2.The influence of newspapers is ____ bring about major changes in the lives of people but they can even overthrow a government.
A.such that not only can they B.so that not only can they
such和so应该用哪个?为什么?
3.The result is that graduates cannot enter the professions _____ and must tak temporary jobs,which do not require a college degree.
A.for that they were trained B.for these they were trained
C.for which they were trained D.for what they were trained
这题应该选什么?为什么?

1.B
despite是一个介词,其后加all her arguments做宾语,所以选项做后置定语修饰arguments；
on the contrary在句中只能做状语且单独使用,排除A；
in contrast一般不单独使用,构成短语in contrast to/with...,且其意思是“（和...）对比”,和句意不符,排除C；
to the contrary单独使用,即可做副词充当状语,也可做形容词充当定语,意思是“相反的/地”,且与句意相符,所以B为正解.
2.A
such即可做代词,也可做形容词,做代词时候可以单独使用,类似于名词,翻译为“这样的人/物/事情”；
so只能做副词,修饰形容词/副词做程度状语,不能单独充当句子成分.
而该句是一个明显的so/such...that...句型,选项在主句中单独充当表语,而后的that引导一个结果状语从句.
所以只能用代词such充当表语,而so不能单独充当句子成分,排除B.
3.C
定语从句,关系代词which代替先行词the professions,在句中充当介词for的宾语,且和for一起提前至定语从句句首.
即：for which they were trained
= they were trained for which
= they were trained for the professions
these/what都不能引导定语从句,排除BD；
表物的关系代词放在介词之后时,只能用which,不能用that,排除A.

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