高考Andrew Miller thinks social media needs more attention than banks mainly because it remains unknown how users' data will be taken advantage of.

安德鲁·米勒（Andrew Miller）认为，社交媒体比银行更需要关注，主要是因为尚不清楚用户的数据将如何被利用。

2016年高考英语上海卷 阅读理解 阅读C 题设

四级The scientist confirmed the snake was a previously unknown species after conducting a genetic analysis of tissue samples.

在对组织样本进行遗传分析后，这位科学家确认这条蛇是一种以前未知的物种。

2017年6月听力原文

高考The music allowed me to learn that teaching is about sharing and respect, tears and smiles, the knowing and the unknown and, most of all, an understanding of each other.

音乐让我认识到，教学是关于分享和尊重，眼泪和微笑，知道和未知，最重要的是，相互理解。

2015年高考英语湖南卷 完形填空 原文

高考Stress used to be an almost unknown word, but now that we are used to talking about it, I have found that people are beginning to get stressed about being stressed.

压力曾经是一个几乎不为人所知的词，但现在我们习惯于谈论它，我发现人们开始因为压力而感到压力。

2016年高考英语上海卷 语法填空 B 原文

高考Granddaughter Gayle Parks, 31—who works alongside her in the family business—said it remained unknown as to who nominated Irene for the award.

31岁的孙女盖尔·帕克斯（Gayle Parks）与她一起在家族企业工作。她说，目前还不清楚是谁提名艾琳获得该奖项。

2019年高考英语全国卷2 语法填空 原文

考研Yet only one of his books is now in print, and his vast body of writings on music is unknown save to specialists.

然而，他的书目前只有一本出版，他关于音乐的大量著作，除了专家之外，无人知晓。

2010年考研阅读原文

高考I guess that there's probably some demanding work schedule, or social anxiety around stepping up to help for an unknown sport.

我猜可能有一些苛刻的工作日程安排，或是社交焦虑围绕着帮助一项未知的运动。

2019年高考英语全国卷2 阅读理解 阅读B 原文

高考In theory, they should live by the French law is often ignored or unknown, thus making them into an interesting area of "lawlessness" in the world.

从理论上讲，他们应该遵守的法国法律往往被忽视或不为人所知，从而使他们成为世界上一个有趣的“无法无天”领域。

2016年高考英语四川卷 阅读理解 阅读C 原文

高考I could only have left it on the G9 bus, which was now speeding in the dark to some unknown station.

我只能把它留在G9巴士上，这辆巴士现在正在黑暗中加速，驶向一个未知的车站。

2019年高考英语天津卷 完形填空 原文

高考But how they're doing it is still unknown.

但他们是如何做到这一点还不得而知。

2015年高考英语北京卷 阅读理解 阅读C 原文

高考When most of us get a text message on our cell phone from an unknown person, we usually say "Sorry?"

当我们大多数人在手机上收到陌生人的短信时，我们通常会说“对不起？”

2018年高考英语全国卷3 完形填空 原文

四级According to Leslie, those who ridiculed former Defense Secretary Donald Rumsfeld for his 2002 remark that we have to be wary of the unknown unknowns were mistaken.

根据莱斯利的说法，那些嘲笑前国防部长唐纳德·拉姆斯菲尔德（Donald Rumsfeld）2002年的言论——我们必须警惕未知的未知——的人是错误的。

2017年12月四级真题（第二套）阅读 Section B

六级What distinguishes a depression from a harsh recession is paralyzing fear - fear of the unknown so great that it causes consumers, businesses, and investors to retreat and panic.

大萧条与严重衰退的区别在于麻痹性恐惧——对未知的恐惧如此之大，以至于导致消费者、企业和投资者撤退和恐慌。

2013年6月阅读原文

六级Marcel Proust, another lover of the Louvre, wrote: “ It is only through art that we can escape from ourselves and know how another person sees the universe, whose landscapes would otherwise have remained as unknown as any on the moon.

卢浮宫的另一位爱好者Marcel Proust写道：“只有通过艺术，我们才能逃离自我，了解另一个人是如何看待宇宙的，否则，宇宙的景观将与月球上的任何景观一样不为人知。

2020年12月六级真题（第1套）

六级These “thought experiments” were pages of calculations signed and submitted to the prestigious journal Annalen der Physik by a virtual unknown.

这些“思想实验”是由一位几乎不为人知的人签署并提交给著名期刊《Annalen der Physik》的计算页面。

2010年12月英语六级真题

四级There seems never to have been a civilization without toys, but when and how they developed is unknown.

似乎从来没有一个文明没有玩具，但它们何时以及如何发展还不得而知。

1999年6月大学英语四级(CET-4)真题

四级Defense Secretary Donald Rumsfeld for his 2002 remark that we have to be wary of the “unknown unknowns” were mistaken.

国防部长唐纳德·拉姆斯菲尔德2002年说，我们必须警惕“未知的未知”，这是错误的。

2017年12月大学英语四级考试真题(第3套)

考研At the bottom of the world lies a mighty continent still wrapped in the Ice Age and, until recent times, unknown to man.

在世界的底部有一块强大的大陆，它仍然被冰河时代包裹着，直到最近，人类还不知道。

1986年全国硕士研究生入学统一考试英语试题

考研Anything from cosmic rays to radiation to diet may activate a dormant oncogene, but how remains unknown.

从宇宙射线到辐射再到饮食，任何东西都可能激活一种休眠的致癌基因，但如何激活仍然未知。

1994年全国硕士研究生入学统一考试英语试题

考研In order to grow, to travel new roads, people need to have a willingness to take risks, to confront the unknown, and to accept the possibility that they may “fail” at first.

为了成长，为了走上新的道路，人们需要有冒险的意愿，面对未知，并接受他们最初可能“失败”的可能性。

1995年全国硕士研究生入学统一考试英语试题

考研Small-minded officials, rude waiters, and ill-mannered taxi drivers are hardly unknown in the US.

心胸狭窄的官员、粗鲁的服务员和举止粗鲁的出租车司机在美国并不少见。

1997年全国攻读硕士学位研究生入学考试英语试题