3 主动还是被动
用cover的适当形式填空：
The wild flowers looked like a blanket ______ the desert.
The wild flowers looked like a blanket ______ on the desert.
两个句子一字之差，区别在哪里呢？
这种事物的名词做逻辑主语时，与非谓语动词之间的主动和被动关系如何确定？
最佳答案 2022-09-08 07:19
cover是及物动词，后面有介词时，要改用be covered形式，过去分词有被动含义。谓语动词采用的形式和动词本身及物不及物有关系。如：a mountain covered with snow.They were awestruck by the white snow covering the mountain.
要注意的是，不是所有及物动词都可以这样用，有些动词只能由有生命的做主语。
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其它 1 个回答
【1】The wild flowers looked like a blanket covering the desert.(over)
【2】The wild flowers looked like a blanket ______ on the desert. (over)
解答：第1个句子填现在分词“covering”作后置定语，a blanket covering the desert=a blanket which covers the desert 一条覆盖沙漠的毯子。
The wild flowers looked like a blanket covering the desert
=The wild flowers looked like a blanket which covers the desert
参考译文：这些野花看起来就像一条覆盖沙漠的毯子。
第2个句子后面用介词on是属于逻辑错误的，原因cover当动词，后面作状语介词短语必须是动作执行者。即介词后面的宾语必须是动作执行者。即cover A with B=A be covered with B=A be covered by B=A be covered in B
【1】cover A with B=A be covered with B“用B覆盖A”
She covered her face with her hands.=Her faced was covered with her hands 她双手掩面。
Cover the chicken loosely with foil.
=The chicken is covered loosely with foil.用锡箔把鸡肉松松地盖起来。
【2】A be covered by B “A 被B覆盖”
The ground was covered by snow=大地被大雪所覆盖/大雪覆盖了大地。
【3】A be covered in B “A 撒上/洒上/溅上B”
The players were soon covered in mud.那些运动员很快就浑身溅满了泥。
总结：cover不能与介词on构成搭配。cover当作及物动词使用，后面不需要接任何介词，且宾语必须是动作承受者，即cover sth(A) +with sth(B) / by sth(B)/ in sth(B); A cover B=A 覆盖B
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