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：

So we’re thinking that albatross could make use oftwo different kinds of compasses if you will, amagnetic compass and a celestial compass.

The magnetic compass somehow makes use ofEarth’s magnetic field, much the way a standardcompass does.
But to prove this, we would have to find some kind ofmagnetic sensory organ in birds, and we are notsure that we have.
We have found in birds a mineral called magnetite, which we think might be somehow related to this, because magnetite is a natural magnet.
But the problem is that we’ve also found magnetite in non-migratory birds,
which suggests that it may in fact serve a completely different function, not related tonavigation at all.
Um, and the other compass, the celestial compass makes use of the stars, more or less thesame way humans have historically used the stars to navigate in the open sea.
So that’s the way we think albatross navigate.
So anyway, you know, think about it, how about if you had to go a thousand miles every timeyou wanted to get a bite to eat?
Yeah, and we complain about having to walk all the way across campus to get to the cafeteria.
Yeah.
所以我们认为信天翁能使用两种不同的罗盘，一种磁罗盘和一种天文罗盘。
磁罗盘会以某种方式利用地球的磁场，和一个标准的罗盘几乎一样。
但是为了证明这一点，我们必须找到鸟身上的某种磁感应器官，但我们不确定找到了。
我们在鸟身上找到了一种叫做磁铁矿的矿物质，我们认为这也许和磁罗盘有某种联系，因为磁铁矿是一种天然的磁铁。
但问题是，我们还在其他非迁徙的鸟类身上找到了磁铁矿，
这说明它可能事实上发挥着一种完全不同的功能，和航海一点关系也没有。
另一个罗盘，天文罗盘利用了星星，多多少少和人类在历史上使用星星在远海上航行的方法一样。
所以我们认为这是信天翁导航的方式。
不管怎样，你们可以想想，如果你们每次想吃点什么时都不得不走一千英里的话，会怎么样？
是啊，我们连必须一路穿过校园走到餐厅都抱怨个不停。
是啊。

2.阅读包答案：

巨大的宇宙云的存在，实际上是使20世纪20 年代首创的大爆炸论得以保持其宇宙起源论的主导地位所不可缺少的。

3.写作包答案：

The Yellow Mountain is one of China's mostcelebrated national scenic spots and is listed as aworld cultural and natural heritage.It is famous forits magnificence, beauty and the colorfulness of thescenery.It also has rich resources, boasts wonderfulecological integrity and is of great scientific and ecological value.Pine trees can be foundeverywhere on the Yellow Mountain, of which the most famous are the Guest-greeting pinesand the Crouching Dragon pines.The pine trees stand on the cliff facing the sun, absorbingwater and nutrients from the rock and withstanding wind and rain.When seen from the peak, the clouds surrounding the Yellow Mountain appear as boundless as the sea.The reflection ofthe sunrise or sunset on the clouds is a breathtaking scene.The beautiful Yellow Mountainstands ready to warmly welcome all tourists home and abroad.