快捷报班:   
快捷登陆: QQ登录 微博登录 你好,欢迎来到新东方
账号 密码 登录 注册 忘记密码

新东方网>上海新东方学校>上海托福>托福听力>正文

看黑洞照片前了解一下托福听力中的黑洞词汇(一)-上海新东方学校

2019-05-06 15:15

来源:

作者:

  以下是新东方托福为您带来的看黑洞照片前了解一下托福听力中的黑洞词汇(一),更多托福考试资讯请关注新东方托福

  想获得新东方托福/雅思课程信息,可以查看新东方网上选课。欢迎来电4007021021咨询更多托福课程,获取更多托福资料。还可访问留学院校库,了解更多院校选择。

  第一张黑洞照片将被公布。全球六地同步展示。据人民日报消息,4月10日晚9时,人类首张黑洞照片即将在比利时布鲁塞尔、智利圣地亚哥、中国上海和台北、日本东京、美国华盛顿全球六地同步发布。此前,天文学家都是通过各种间接的证据来表明黑洞的存在,而此次通过EHT事件视界望远镜项目则是通过这个拥有地球直径的“虚拟望远镜”直接观测到了黑洞边缘的图像。


  事实上,黑洞也是托福听力经常出现的内容。下面新东方网托福频道就和大家分享有关黑洞(black holes)的英文介绍和常用词。


  Astronomers think the object shown in this Chandra X-ray Observatory image (in box) may be an elusive intermediate-mass black hole. Located about 32 million light-years from Earth in the Messier 74 galaxy (M74), this object emits periodic bursts of x-rays at a rate that suggests it is much larger than a stellar-mass black hole but significantly smaller than the supermassive black holes found at the centers of galaxies. Few such middling black holes have been discovered, and scientists aren't sure how they form.


  Black holes are the cold remnants of former stars, so dense that no matter—not even light—is able to escape their powerful gravitational pull.


  While most stars end up as white dwarfs or neutron stars, black holes are the last evolutionary stage in the lifetimes of enormous stars that had been at least 10 or 15 times as massive as our own sun.


  When giant stars reach the final stages of their lives they often detonate in cataclysms known as supernovae. Such an explosion scatters most of a star into the void of space but leaves behind a large "cold" remnant on which fusion no longer takes place.

  与其后悔一年什么也没学,不如从此刻开始行动,报名参加新东方托福培训班。

  点击参与入学测试,免费定制学习方案,了解更多信息。(例:新东方托福班学费、新东方托福词汇书等)

新东方留学院校库,留学选校有门道

A BETTER YOU,A BIGGER WORLD!

焦点推荐

版权及免责声明

凡本网注明"稿件来源:新东方"的所有文字、图片和音视频稿件,版权均属新东方教育科技集团(含本网和新东方网) 所有,任何媒体、网站或个人未经本网协议授权不得转载、链接、转贴或以其他任何方式复制、发表。已经本网协议授权的媒体、网站,在下载使用时必须注明"稿件来源:新东方",违者本网将依法追究法律责任。

本网未注明"稿件来源:新东方"的文/图等稿件均为转载稿,本网转载仅基于传递更多信息之目的,并不意味着赞同转载稿的观点或证实其内容的真实性。如其他媒体、网站或个人从本网下载使用,必须保留本网注明的"稿件来源",并自负版权等法律责任。如擅自篡改为"稿件来源:新东方",本网将依法追究法律责任。

如本网转载稿涉及版权等问题,请作者见稿后在两周内速来电与新东方网联系,电话:010-60908555。

词汇测试
×