The next great land area that man hopes to live is the moon. However, there are bad surroundings(環(huán)境) on the moon. Its very hot at daytime and very cold at night, and there is no air or water on it.
Today there are many ideas about living on the moon, but it is unknown when man will begin to live on it. It is believed that man can succeed in living on the moon by three steps. First, man must build some temporary shelters(臨時(shí)住處). Second, man must learn to stay longer in the houses under the surface of the moon with daily necessities(日用必需品) brought from the earth. Third, man will manage to live a self-supporting(自給自足的) life on the moon.
月球:人類的新大陸
人類有望居住的下一片廣闊的土地就是月球。然而,月球上環(huán)境惡劣,白天極熱,夜晚極冷,而且沒有水和空氣。
人們對在月球居住有很多設(shè)想,但何時(shí)才能住到月球上還不為人知。一般認(rèn)為,人類必須經(jīng)過三個(gè)步驟才能成功地在月球上生活。首先,人類必須建造一些臨時(shí)的住處。 第二,人類必須依靠從地球上帶去的日用必需品,學(xué)會在月球表面以下的房屋中呆得更長久。第三,人類必須設(shè)法在月球上過上自給自足的生活。
(孟凡君 供稿)
中學(xué)生天地·高中學(xué)習(xí)版2008年1期