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发表于:2018-12-06 / 阅读(56) / 评论(0) 分类 星际动物园.The.Star.Zoo

New Earth-Size Planet Found 地球大小的新行星被发现 Not too big, not too small. Not too hot, not too cold. A newly discovered planet looks just right for life as we know it, according to an international group of astronomers. 不太大又不太

发表于:2018-12-16 / 阅读(57) / 评论(0) 分类 VOA标准英语2014年(四月)

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发表于:2019-01-01 / 阅读(78) / 评论(0) 分类 星际动物园.The.Star.Zoo

By David McAlary Was 16 August 2006 Artist's rendition of solar system There may soon be three new planets in our solar system. The expansion would be the result of a proposed new definition of what a planet is. The change is controversial, but if a

发表于:2019-01-11 / 阅读(135) / 评论(0) 分类 2006年VOA标准英语(八月)

地球是太阳系从内到外的第三颗行星,也是太阳系中直径、质量和密度最大的类地行星。它也经常被称作世界。英语的地球Earth一词来自于古英语及日耳曼语。地球已有44~46亿岁,有一颗天然

发表于:2019-01-26 / 阅读(68) / 评论(0) 分类 英语听力文摘 English Digest

The Time Before Fire What is fire anyway? Well, fire is rapid oxidization . Its the energy released when oxygen atoms start combining with carbon and hydrogen atoms. Exactly, so without oxygen in the air, nothing burns. You mean there was a time befo

发表于:2019-01-26 / 阅读(59) / 评论(0) 分类 英语听力文摘 English Digest

The Habitable Zone 宇宙生命奥秘 适居带(HZ)是天文学上给一种空间的名称,指的是那里的情况有利于生物的存在,或许可以发现像地球这样的生命体。有两种区域是有可能的,一个是在行星系内,

发表于:2019-02-24 / 阅读(185) / 评论(0) 分类 英语听力文摘 English Digest

Vesta 灶神星 You can see the planet Jupiter on a clear night, but Jupiter is humongous. Mars and Mercury are smaller than that, and you can see them, too. Wait a minute, our moon is even smaller, and you can see that. Could anything smaller than t

发表于:2019-02-24 / 阅读(70) / 评论(0) 分类 英语听力文摘 English Digest