话题：科普知识

　　常用词汇：

　　science 科学　scientist 科学家　technology 技术　engineer 工程师　astronaut宇航员　astronomer 天文学家

　　breakthrough突破　project项目　capsule太空舱　manned spaceship/spacecraft载人飞船　space shuttle航天飞机　unmanned spaceship/spacecraft无人飞船　circling the moon绕月　landing on the moon登月　return to Earth返回地球　weather satellite气象卫星　

　　communication satellite通信卫星　carry out scientific experiments开展科学实验　with all the information available 有所有的可用信息　invent a folding wheel 发明可折叠的轮子　have access to space travel能到太空旅游　apply basic technology to daily life 将基础科技运用到日常生活中

　　范例：

　　Is there life on Mars? We don't know.Can we land on Mars? It all depends on the development of science and technology.Man has known a little about Mars.There is almost no oxygen on Mars.It might be about 50 degrees above zero at noon and 100 degrees below zero at night, which prevents us from living there.Now that Mars are quite different from our earth, if we are to go to Mars one day, we should have to take along our own oxygen, food and clothing.But it is certain that with the development of science man will land on Mars in time.

　　一、 单词识记

　　根据词意写出单词的汉语意思或写英文单词。

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