六级The researchers explained that the study demonstrated when we are in a novel environment the brain partly remains alert so that humans can defend themselves against any potential danger.

研究人员解释说，这项研究表明，当我们处于一种新的环境中时，大脑部分保持警觉，以便人类能够抵御任何潜在的危险。

2017年6月六级真题（第三套）阅读 Section A

六级Apple argues that it is fighting to preserve a principle that most of us who are addicted to our smartphones can defend: Weaken a single iPhone so that its contents can be viewed by the American government and you risk weakening all iPhones for any govern

苹果公司辩称，它正在努力维护一个原则，这一原则是我们大多数沉迷于智能手机的人都可以捍卫的：削弱一台iPhone，这样它的内容就可以被美国政府看到，你就有可能以任何方式削弱所有iPhone

2017年12月六级真题（第三套）阅读 Section B

考研"We don't make anything anymore," he told Fox News, while defending his own made-in-Mexico clothing line.

“我们再也不生产任何东西了，”他在为自己的墨西哥制造服装线辩护时告诉福克斯新闻。

2017年考研真题（英语二）阅读理解 Section Ⅱ

六级How did Christopher Beard defend his company’s labeling practice?

克里斯托弗·比尔德是如何为公司的标签做法辩护的？

2016年6月大学英语六级第3套真题

六级She wound up defending herself on CNN (accompanied by her son) and on popular blogs like the buffing ton post, where her follow-up piece was ironically headlined “More From America’s Worst Mom.

她最终在美国有线电视新闻网（CNN）（由儿子陪同）和流行博客上为自己辩护，比如这篇精彩的帖子，讽刺的是，她的后续文章标题是“来自美国最糟糕的妈妈的更多”。

2009年6月英语六级真题

四级Tigers fight to death only when a tigress is defending her young, or when a tiger is guarding a tigress from the attentions of other males.

老虎只有在母老虎保护幼崽的时候，或者当老虎保护母老虎不受其他雄性注意的时候，才会拼死搏斗。

1993年1月大学英语四级(CET-4)真题

考研And should one country take upon itself the role of “defending competition” on issues that affect many other nations, as in the U S. vs. Microsoft case ?

一个国家是否应该在影响许多其他国家的问题上扮演“捍卫竞争”的角色，比如美国诉微软案？

2001年全国攻读硕士学位研究生入学考试英语试题

考研Without the ability to think critically, to defend their ideas and understand the ideas of others, they cannot fully participate in our democracy.

如果没有批判性思维、捍卫自己的想法和理解他人想法的能力，他们就无法充分参与我们的民主。

2004年全国攻读硕士学位研究生入学考试英语试题