宝春

各位同学们，为了督促帮助大家持续提升英语能力，培君老师们特意给大家准备了托福每日一包。每天覆盖听说读写内容，坚持完成两周以上，就能见到自己的英语能力不断上涨哟。

1.托福中级听写包：

Listen to part of a lecture in a biology class.

请听生物课上的部分内容。
So that’s the overview of the human immune system.
所以那就是对人类免疫系统的概观。
But we have a few minutes left. Any questions? George?
不过我们还剩下几分钟时间，有什么问题吗？George？
Yes. You talked about T-cells, naive T-cells. Can you go over that part again?
有，你讲到过T细胞（胸腺依赖型细胞），幼稚型T细胞。你能再过一遍那部分吗？
And also why do we call them that anyway?
还有，我们到底为什么那么叫它们呢？
All right. They’re...they’re known as T-cells because they develop in the thymus.
好的。它们被叫做T细胞是因为它们是在胸腺中发育的。
The what?
什么？
Thymus. That’s T-H-Y-M-U-S.It’s a small organ in the body.
胸腺，拼写是T-H-Y-M-U-S，它是身体中的一个小器官。
Anyway, that’s why we call them that, they come from the thymus, and T-cells are a part of the body’s immune system.
反正这就是我们这么叫它们的原因，它们来自胸腺，而且T细胞是身体免疫系统的一部分。
They can recognize and eliminate cells from outside the body that might cause disease.
它们可以辨认出并消灭来自身体之外可能会带来疾病的细胞。
But why naive? I mean, we might call people naive if they don’t have enough experience to know about the dangers of the world.
但是为什么说它们幼稚呢？我是说，我们会说人幼稚，如果他们没有足够的经验了解世界上的危险的话。
But how can you can a cell naive?
但是你怎么能说一个细胞幼稚呢？
Well...when this type of immune cell encounters a cell from outside the body, like maybe a bacterium,
当这种类型的免疫细胞遇到了来自身体之外的细胞，比如一个细菌，
it interacts with that bacterium and learns to recognize it.
它会和那个细菌互动并学着辨认它。
So whenever the immune cell runs into that kind of bacterium in the future, it’ll attack and kill it.
所以无论将来什么时候这个免疫细胞遇到了那种细菌，它都会攻击并杀掉这种细菌。

2.阅读包答案：

最迟钝的管理者也应该明白：信任作为经济资产中最有价值的部分是很容易被摧毀的,而且修复起来代价髙昂,而没有什么比企业让个人机密数据落入别有用心之手更容易摧毁信任的了。

3.写作包答案：

中译英1：

Books are treasure banks storing wisdom passed down from generation to generation.

中译英2：

The Internet has been used for public service in China for about twenty years. So far, the number of Chinese Internet users over 590 million. Being widely used in China, the Internet has pervaded all aspects of life. The Internet businesses most frequently used by Chinese Internet users are email, news, search engine, web browsing, online music, instant message, online entertainment and so on. The Internet has been changing people's consumption concept, ways of entertainment and socializing, as well as modes of thinking. Now the Internet information technology has been affecting people's life more deeply than any other scientific invention in human history.