Most scientists now think that the moon was once part of Ear

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/08/08 06:49:51

Most scientists now think that the moon was once part of Earth.
为什么这里的part前面没有加a?
trains travelling to different parts of a city mean fewer cars and buses on our roads.
为什么mean不加s?不是应该动名词做主语用三单一的么?
解释下、谢、

朋友,
本人以为,第一个问题,a part of的意思是一部分,而part of sth的意思虽然也是一部分,但是,它表示的是整体的一部分,联系密切,是母与子的关系.而a part of是指混在一起的事物中的一部分,联系并不是很强哈.
第二个问题,注意主谓一致就可以解决了哦.首先,主语是different parts,是复数,然后看谓语,用的是mean,是正确的,所以,做题时要找准主语是什么哦.

Most scientists now think that the moon was once part of Ear Most of the scientists think that Mars is a ______ planet.(l 33.Most of the representatives think that () the meeting was 意思Scientists now believe that the planet could once have sup to address the part of the system that is most... It was something that happens once in the blue moon.这是千载难逢的事 that part of the moon facing away from the sun appears dark. 英语翻译What scientists think is that the earth was different be 英语翻译the light breeze that was once there was now gone.was br 17.Most of the representatives think that ______ the meeting Most of the representatives think that ______ the meeting wa How long does it take the Moon to travel once around the Ear