As we all know,the whole life of the doctor____studying the origin of cancerA has devoted to B was being devoted to C was devoted to Dhas been devoted to选哪个,为什么?每个选项解释下?

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As we all know,the whole life of the doctor____studying the origin of cancerA has devoted to B was being devoted to C was devoted to Dhas been devoted to选哪个,为什么?每个选项解释下?

As we all know,the whole life of the doctor____studying the origin of cancerA has devoted to B was being devoted to C was devoted to Dhas been devoted to选哪个,为什么?每个选项解释下?
As we all know,the whole life of the doctor____studying the origin of cancer
A has devoted to B was being devoted to C was devoted to Dhas been devoted to
选哪个,为什么?每个选项解释下?

As we all know,the whole life of the doctor____studying the origin of cancerA has devoted to B was being devoted to C was devoted to Dhas been devoted to选哪个,为什么?每个选项解释下?
选D.sb devote some time to doing sth.某人把时间奉献于做某事.
the whole life作主语 应为:some time be devoted to doing (时间被奉献于做某事)
现在用的是一般现在完成时,为some time has been devoted to doing
所以选D

选D, sb devote sth to doing sth ,而题中是sth作主语,所以用被动,排除A; As we all know,是众所周知,即是事实,用一般现在时,则排除B 、C

选D。中文翻译:正如我们所知,一个医生的一生都被用来研究癌症的来源。
A不是被动语态;B不是完成时;C只是被动语态但却不是完成时。

A has devoted to
devote to把...献给; 把...专用于
devote oneself to 致力于, 献身于; 专心

选D,首先这肯定要选被动语态,因为是sb devote sth/oneself to ....,所以BCD里头选。再来看时态,根据句子的意思揣测:众所周知,这位医生的一生都奉献给了研究癌症起源,应该是完成时,而不是进行时或者过去时。或者你可以把他变为主动来看:As we all know, the docotor has devoted his whole life to studying the...

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选D,首先这肯定要选被动语态,因为是sb devote sth/oneself to ....,所以BCD里头选。再来看时态,根据句子的意思揣测:众所周知,这位医生的一生都奉献给了研究癌症起源,应该是完成时,而不是进行时或者过去时。或者你可以把他变为主动来看:As we all know, the docotor has devoted his whole life to studying the origin of cancer

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