_____ the earth to be flat,many feared that Columbus would fall off the edge.A.having believedB.believingC.believedD.being believed

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_____theearthtobeflat,manyfearedthatColumbuswouldfallofftheedge.A.havingbelievedB.believingC.believe

_____ the earth to be flat,many feared that Columbus would fall off the edge.A.having believedB.believingC.believedD.being believed
_____ the earth to be flat,many feared that Columbus would fall off the edge.
A.having believed
B.believing
C.believed
D.being believed

_____ the earth to be flat,many feared that Columbus would fall off the edge.A.having believedB.believingC.believedD.being believed
1. 答案:B.
2. 解释:
1)此题考查非谓语动词作原因状语的用法.
2)非谓语动词believe和句子主语many之间是明显的主动关系,所以用现在分词,排除CD;
3)A项为现在分词的完成形式,它表明非谓语动词所表示的动作和主句动作在发生时间有着明显的先后关系.
但此句中,believe(认为)和fear(害怕)这两个动作从时间上说,是同时存在的,即“害怕”的同时,many(许多人)也还是这样think“认为”的,并不存在先后发生的关系.
4)所以,正确答案应该是使用现在分词的一般式,即选项B.

不需要have来表示完成式

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