题目

Is there life on Mars(火星)?We do not know.We are sure that earth people like us cannot live on Mars.Earth people need oxygen（氧气）to breathe(呼吸),but there is almost no oxygen on Mars.
Living on Mars is like living on a very high mountain.
There is little air on it.It is 50℃ about zero at noon and 100℃ below zero at night. Many people think there may be plants on Mars.We know that all plants and animals on the earth need carbon to grow.
Through a telescope(望远镜).Mars looks red.In some places it seems gray.At times the gray color turns gray-green,then brown,then gray again.The gray-green color may be a kind of plant life.It changes color with the seasons.
Will men go to Mars one day?If they do,they will have to take along their own oxygen,food,clothes and something to sleep in. 翻译

提问时间：2020-06-25

答案

火星上有生命吗?我们不知道,但是像我们这样的地球人是没办法在火星上生存的,因为地球人需要氧气来供他们呼吸,而火星上几乎没有氧气.生活在火星就像生活在很高很高的山上那儿没有空气,白天中午气温-50℃而晚上午夜气...