听力首页 听力教程 VOA慢速 英语歌曲 外语下载 英语小说 英语词典 在线背单词 听力论坛 韩语学习
听力专题 英语教材 VOA标准 英语动画 英语考试 资源技巧 英语翻译 单词连连看 听力家园 德语学习
听力搜索 英语导读 BBC英语 英语视频 英语电台 英语QQ群 外语歌曲   英语游戏 英语网刊 日语学习
当前位置: 英语听力论坛 » 【四级教室】 » 四级练习2013.09.05
返回列表 发帖

四级练习2013.09.05


       
       




Astronomers have found numerous other black holes throughout the galaxy, but they've never seen one as it formed. NASA scientist Kimberly Weaver points out that that (1)__________________________to observe the birth and early growth of one of the most mysterious objects in the sky.
"What is it that really matters in terms of this result? It's not just that possibly we've found the youngest nearby black hole. It is a young black hole but what's really exciting about it is that we know (2)__________________________. We've found for the first time possibly the true birth date of a black hole."
And, as astronomers continue to study this object, they expect to gain new insight into (3)__________________________. The scientists discussed their work at a NASA news conference in Washington.






本帖隐藏的内容需要回复才可以浏览

返回列表