tpo14listening听力文本

tpo14listening听力文本内容摘要：

ike when you walk outside on a hot day, you perspire, and your body cools itself down, a classic example of how mammal regulates its own body temperature. But one challenge that squirrels face, well many small mammals do, is that because of their size, sweating would make them lose too much moisture. They dehydrate. But on the other hand, their small size allows them to fit into very tiny spaces. So for small mammals, microclimates can make a big difference. They rely on microclimates for survival. Student: So cold blood animals, like reptiles, they can‟t control their own body temperature, so I can image the effect of microclimate would have on them. Professor: Yes, many reptile insects rely on microclimates to control their body temperature. A lot of reptiles use burrows or stay under rocks to cool down. Of course with reptiles, it‟s a balancing act. Staying in the heat for too long can lead to problems, but staying in the cold can do the same. So reptiles have to be really precise about where they spend their time, even how they position their bodies. And when I say they‟re precise, I mean it some snakes will search out a place under rocks of a specific thickness, because too thin a rock doesn‟t keep them cool enough, and too thick a rock will cause them to get too cold. That level of precision is critical to the snake for maintaining its body temperature. And even microscopic anisms rely on microclimates for survival. Think about this, deposing leaves create heat that warms the soil。 the warm soil in turn affects the growth, the conditions of anisms there. And those anisms then affect the rate of deposition of the leaves. So a microclimate can be something so small and so easily to disturbed that even a tiny change can have a big impact. If someone on a hike knocks a couple of rocks over, they could be unwittingly destroying a microclimate that an animal or anism relies on. Narrator: Listen to a conversation between a student and his faculty adviser Advisor: Hi ， Steven I schedule this appointment, cause it has been a while since we touch this. Student: I know I have been really busy a friend of my works on a school a paper. He asks me if I would like to try to reporting so I did and I really love it. Advisor: Hey…that39。 s sounds great! Student: Yeah… the first article I wrote it was profile of the chemistry professorthe one whose name teacher the year. My article ran on the front page. When I saw my name, I mean my byline in print, I was hooked . Now I know this is what I want to do be a reporter. Advisor: Isn39。 t it great to discover something that you really enjoy? And I read that the article too? It was very good. Student: To be honest, the articles got a lot of editing. In fact I barely recognized a couple of paragraphs. But the editor explained why the changes were made. I learned a lot and my second article didn39。 t meet nearly many changes. Advisor: Sound like you got a real neck for this. Student: Yeah… anyway, I am glad you schedule this meeting because I want to change my major to journalism now. Advisor: Um， the university doesn39。 t offer major in journalism. Student: Oh no… Advisor: But…. Student: I… I mean… should I transfer to another school, or major in English? Advisor: Er… wait a minute. Let me explain why the major isn‟t offered. Editors at the newspaper… editors… um… I mean when you apply for a reporting job, editors look at the two things they want to see clips , you know, some of your published articles, though also want to try out, though give you an assignment like… covering a price of conferences some other event, then see if you can craft the story about it, accurately, on dead line. Student: So they don39。 t even to look at my major? Advisor: It is not that they don39。 t look at it… it is… well, having a degree in something other than journalism should actually work to your advantage. Student: How? Advisor: Most journalism specialized these days. They only write about science or business or technology for example. Is there a type of reporting you think you may like to specialize then? Student: Well… I think it can be really cool to cover the Supreme Court. I mean… their decision affects so many people. Advisor: That is really a goal worth striving for. So, why not continue major in political science? And as elective, you could take some PreLaw classes like Constitu。