2021年4月30日 托福每日一包答案
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：
At that point we call it a memory T-cell because it’s learned to recognize a protein marker that identifies this particular kind of bacterium.
在那个阶段，我们称它为记忆性T细胞，因为它学会了辨认代表着这种细菌的蛋白标志物。
But before it’s learned to recognize any particular protein from outside the body, we call it naive. Okay?
但是在它学会辨认任何来自身体之外的具体蛋白质之前，我们称它们为幼稚型，懂了吗？
Yeah, I get it.
嗯，我懂了。
There is a lot of biochemistry involved that we’ll get into in the next lecture.
这其中涉及了很多生物化学知识，我们下堂课会讲到的。
But your question reminds me about a study that some of my colleagues are doing, it relates to caloric restriction.
但是你的问题让我想起了我的一些同事正在做的一项研究，它和卡路里限制有关。
Caloric? Like calories in the food we eat.
卡路里的？就像我们吃的食物中的卡路里一样？
Exactly! We are talking about the sugars, carbohydrates, fats that our bodies burn to get energy which we measure in calories.
没错！我们讲的是我们身体燃烧以获取能量的糖分、碳水化合物、脂肪，这些我们都是用卡路里来计算的。
Okay, let’s back up a little. Back in the 1930s, a nutritionist at Cornell University put mice on a severely restricted diet.
好了，我们往回讲一点。在过去二十世纪三十年代的时候，一位Cornell大学的营养学家给老鼠制定了一个严格限制的食谱。
He gave each mouse in one group 30% less food, or more precisely, 30% fewer calories than the mice in the other group which ate a normal amount.
他少给了一组里的每只老鼠30%的食物量，或者更确切地说，比另一组正常食量的老鼠少30%的卡路里。
And the result, the underfed mice lived much longer than the normally fed ones.
结果是，食物不足的老鼠比正常喂养的老鼠活得久得多。
2.阅读包答案：
即使工作的起薪看起来很低，难以满足即将成年的孩子的快速自我满足的需求，但是如果这个准成年人已经做好了准备，那么他在从学校向职场的转变中所遭遇的挫折也许会少些。
3.写作包答案：
中译英1：
Remember that, without your permission, no one can make you feel inferior.
中译英2：
The Golden Week refers to a consecutive seven-day national holiday. In 1999, China started to carry out the Golden Week policy. Since then, the Golden Week has enriched people's daily life and promoted the development of social economy by encouraging people to travel and spend. Nevertheless, there is no denying that the problems caused by the Golden Week are getting obvious, such as the traffic jams, overcrowded tourist spots and rising prices. In 2012，the Chinese government announced that expressways nationwide would be toll-free during important holidays, including the two seven-day holidays around the Spring Festival and the National Day, which, to some degree led to the highly increased number of vehicles and people going out.
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