作业帮一道英语选择题（devote to）Professor Baker,who___ the research of wild animals all his life,___ to give a speech in our school next week.A.has devoted to;is supposedB.is devoted to;will be supposedC.has been devoted to;is supposedD.had devot
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一道英语选择题（devote to）Professor Baker,who___ the research of wild animals all his life,___ to give a speech in our school next week.A.has devoted to;is supposedB.is devoted to;will be supposedC.has been devoted to;is supposedD.had devot
一道英语选择题（devote to）
Professor Baker,who___ the research of wild animals all his life,___ to give a speech in our school next week.
A.has devoted to;is supposed
B.is devoted to;will be supposed
C.has been devoted to;is supposed
D.had devoted to ;will be supposed
说说我的不解 为什么第一空不能用is devoted to,而第二空为什么is supposed to 而不用will be supposed
一道英语选择题（devote to）Professor Baker,who___ the research of wild animals all his life,___ to give a speech in our school next week.A.has devoted to;is supposedB.is devoted to;will be supposedC.has been devoted to;is supposedD.had devot
从题意可知,all his life,说明Baker教授到目前为止一直致力于野生动物的研究,这种情况从过去一直持续到现在,所以用has been devoted to
be supposed to do,表示期望做某事,演讲时下周举行,但是这种想法是现在的,而不是将来的
all his life说明从过去到现在了 用现在完成时 而一般现在时表示现在的状态 和过去无关的 be supposed to do应该要做做事 已经有将来的意思了 be supposed to be doing应该正在做某事 be supposed to have done应该已经做了某事
因为who引导的定语从句中有allhislife，说明是从过去开始一直持续到现在所以用现在完成时，第二个空使用一般现在时表示将来，所以选c！！！