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.听写包 答案：

Now, the kind of spray-on treatments I mentioned. Well, they wear off.

What happens is they cause the tiny water droplets to flatten when they condense on the surface of the shower door or bathroom mirror or whatever object it is, it’s been applied to.

Because the droplets are flattened, when light hits them, the light doesn’t scatter.

But, has I said, those kinds of treatment don’t last very long.

The new coating has two important components.

One, negatively charged silicon nano particles, these are basically tiny particles of glass.

And two, a positively charged polymer, which you already know, a polymer is a chemical compound.

They’re layered over each other, the Polymer, then the silicon nano particles, the polymer, then the silicon nano particles, you see.

They’re layered in such a way that the silicon nano particles don’t pack together tightly.

In other words, the structure has pores, or holes, little tiny pockets throughout it.

The coating prevents fog from developing, because it loves water, it attracts the water droplets, sucking them into the tiny pores.

我之前提到的那种喷雾式的方法，它们会逐渐消失。

是这么操作的：当水滴在淋浴房的门上或浴室镜子上或者任何它们被喷上的物体表面凝结时，这种喷雾会让这些小水滴变平。

因为这些水滴变平了，所以当光线照到它们时不会发散。

但是我已经说过了，那种措施的有效时间不会持续很久。

这种新涂层有两个重要的成分。

一个是带阴电荷的硅纳米粒子，

第二个是带阳电荷的聚合物，你们已经都知道了，聚合物就是一种化学混合物。

它们被互相叠加在一起，第一层聚合物，然后是硅纳米粒子，聚合物，再一层硅纳米粒子。

它们的这种叠加方法能防止硅纳米粒子紧紧地黏在一起。

换句话说，这个结构有小孔或者小洞，整个结构中遍布微小的囊袋。

这个涂层能阻止雾气形成是因为它非常爱水，能吸引水滴，把它们吸进小孔里。

2.阅读包答案：

要快速融入我们的校园生活，你们可以阅读一些有关中国风俗的书籍，以突破语言和文化障碍。

3.写作包答案：

中译英1：

Life doesn't just happen to you; you receive everything in your life based on what you've given.

中译英2：

Papermaking, gunpowder, printing and compass are the Four Great Inventions of ancient China that have exerted a great and far-reaching impact on the entire world. The invention of paper greatly contributed to the spread and development of civilization. The birth of gunpowder was quite accidental. It was invented inadvertently by alchemists while attempting to make an elixir. At the end of the Tang Dynasty, gunpowder was used in military affairs, and was spread to all over the world in the 13th century. On the basis of printing in the Tang Dynasty, BiSheng in the Northern Song Dynasty invented the movable-type printing, which lauched a great revolution in the history of printing.Natural magnets were made into the first direction-finding compass by ancient Chinese people, which greatly improved a ship's ability to navigate over long distances.