____from the moon,the planet earth is a beautiful blue world

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/01 11:43:23

____from the moon,the planet earth is a beautiful blue world in a thin mist
A、Seeing B、Seen C、To see D、Saw
为什么会选B啊?怎么会用过去式的啊?

B 是正确的答案
不是过去式,是被动语态.
完整的句子是
(When it is seen) from the moon,the planet earth is a beautiful blue world in a thin mist.
词组 When it is 省略了
也有仅省略 it is 的方式：
When seen from the moon,the planet earth is a beautiful blue world in a thin mist.
这种句型,多读多听就会发现这种省略很正常.
再问：为什么when it is能省略啊？
再答：没有为什么的。无论哪个语言都有习惯表达方式，英语的一个常规是如果省略一个次要的单词不影响句子的意思或可理解性，为了简洁是可以省略的。这不是语法问题，这是习惯和语感的问题。语感是从多读多听练出来的。

____from the moon,the planet earth is a beautiful blue world The earth is a h----- blue planet 英语翻译The Earth,our home planet,is a beautiful blue and white 英语翻译The moon is much nearer to the earth than all the planet The moon is much nearer to the earth than any other planet.保 The earth is ( ) the moon. The earth is the third planet. the world is a beautiful 1.The Earth is the_________(three)planet. the earth is about as the moon A as fifty the moon is the ( )of the earth 为什么seem from the moon,the earth looks like a blue water glob