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：

Well, my sister just had a baby and she keeps talking about how her left arm is getting so much stronger than her right.

OK, so there’s some anecdotal evidence.
So, then when the baby looks up at their parent, what they see is the left profile.
Right. And so the theory goes: the left side of the face becomes imprinted in our memories.
But the parental imprinting hypothesis doesn’t explain why left profiles have decreased over time.
I mean, parents are still carrying their babies in their left arm, right?
Exactly! All right, what about the way the artists’ studio is organized, specially the light source.
Remember that the light source determines where the shadows are.
So, if you’re a right-handed artists, you’d want to the light coming from your left
because you don’t want your printing hand to cast a shadow across your canvas, right?
And if the light’s coming from your left, you’d want your subject to turn to their right into the light.
And if they do that, what do you see?
The left side of their face.
Exactly, and well into the 20th century, many an artist’s primary light source would be the sun.
And they set up their studio to take maximum advantage of it.
But then what happens as other high-quality, portable, artificial light sources become available.
Well, you could position your subject in a lot more different ways and still have good lighting on your subject and on your canvas.
So...?
You’d expect to see a more balanced ratio of left- and right-side portraits.
我姐姐刚生完孩子，她一直在说她的左臂正变得比右臂更强壮。
好吧，所以有一些轶事证据。
所以，这样的话，当孩子抬头看他们的父母时，看到的就是左边的侧脸。
没错，所以这个理论说：左边的脸印刻在了我们的记忆中。
但是这个亲本印记假设并没有解释为什么画左侧脸的现象渐渐减少了啊。
我的意思是说，现在父母仍然在用他们的左臂抱孩子，对吗？
没错！好了，这跟画家工作室的规划有没有关系呢？特别是光源。
别忘了，光源决定了阴影的位置。
所以，如果你是惯用右手的画家，你会想让光线从你的左边过来，
因为你不想让你画画的手在画面上留下阴影，对吧？
那如果光线从你的左边过来，那你就会希望模特转向他们的右边，正对着光线。
如果他们那么做的话，你会看到什么？
他们左边的脸。
正是如此，而且进入20世纪后，很多画家的主光源是太阳光。
他们把画室布置得能最大限度利用阳光。
但是接下来随着其他高质量、便携的人工光源出现时，会发生什么？
你可以让模特按照更多不同的方式摆姿势，而且仍有良好的光线照在模特和你的画布上。
所以......?
就能看到肖像画中左右边的比例更加均衡。

2.阅读包答案：

自然选择在进化中的作用仅在一百多年前才得以阐明，而环境在塑造和保持个体行为时的选择作用则刚刚开始被认识和研究。

3.写作包答案：

China was one of the world's pioneers in usingcurrency.Copper coin was the main type of currencyused in ancient China.Round coins with square holesreplaced all pre-Qin currencies and became thedominant form of Chinese currency from theunification of China in the Qin Dynasty to the end of the Qing Dynasty.However,variousmonetary systems were used throughout the dynasties.Banknote first emerged in the SongDynasty,and was widely circulated in the Yuan,Ming and Qing Dynasties.Currencies developedclosely with the social,economic and political systems in each historical period.Since the Hanand Tang Dynasties,Chinese copper coins and banknote began to be copied by variousneighboring states.About the same time,foreign currencies flowed into China,stimulating thedevelopment of an international commercial economy.