在一个句子里有 mars earth moon 单词中 只有mars前面没加定冠词The .earth和moon前都加了.为什么?Water had already disappeared from planets like Mars or satellite like the moon,but it stayed on the earth.

在一个句子里有 mars earth moon 单词中 只有mars前面没加定冠词The .earth和moon前都加了.为什么?Water had already disappeared from planets like Mars or satellite like the moon,but it stayed on the earth. Mars（火星）在什么情况下,在句子中,前面不加the?在英语课本上有这样一句话：The aliens from Mars landed on the Earth. The earth has half as many moons as Mars.求翻译,这是外研版高91页的句子. 英语首字母填空.句子在问题补充里.Have you ever e( ) Mars?顺便帮我翻译一下. 用英文来解释：Earth,Mars,galaxy It takes Mars about Earth years to complete a circle around the sun.问号处填什么?是一个数字. 星球的英文名称有含义、规律吗例如地球Earth,太阳Sun,月球Moon,火星Mars,有什么含义吗 not与even在一个句子里有什么关系 急求universe 与space的区别我有在英语书上看到许多类似的句子:They can travel to the space and discover something new about Mars.We will live in space one day.在这些句子里,space都是宇宙的意思,而universe也是宇宙的 Earth 在英文里怎么读? the sun,the earth,the moon,Mars为什么Mars 前不加定冠词the 和earth,Mars,moon同类的英语单词?急 有没有一个词语,造了两个句子,在不同的句子里意思你不同 i think life on Mars will be better than________in many waysAon Earth Bit on Earth Cthat on Earth Don Earth Human beings will be lonely if there aren't animals on the earth.请帮忙解释一下为什么在这个句子里还要加“beings”去掉不也可以吗?它在难道有什么作用吗? The idea was that trapped greenhouse gases in the atmospheres of Earth and Mars mighthave caused temperatures to raise enough.trapped在这里是什么意思? This things were (c )on the earth,but they were (p ) expensive on the Mars最好有整一段的答案 Much（空） about the Mars has been sent back to the earth .空中填-- 有much那impression应不应该加s