【正文】 ary in a way, not like the Chanson poet who was always surrounded by his fighting panions. He doesn39。t particularly reliable because they were sometimes based on fictitious stories of great adventure or scrapped together from parts of different poems. But there is enough there to squeeze or infer some facts about their social class. The political climate had settled down enough so that troubadours had the luxury of being able to spend most, if not all of their time, creating, crafting or posing their love songs for their audiences. And yes these poems were also sung. Many troubadours were able to make a living being fulltime poets which should tell you something about the value of that profession during medieval times. Lecture 4 已整理 Narrator Listen to part of a lecture in an astronomy class. Professor OK, I want to go over the different types of meteorites, and what we39。s orbit, temperatures are low enough to permit ices to form out of water and...and out of gases like methane and carbon dioxide. Loose collections of these ices and small rocky particles form into ets. So ets are similar in position to the gas giants. Both ets and asteroids are... typically are smaller than plas. An even smaller type of interplaary debris is the meteoroid. And it39。s part of it. Stone meteorites, if they lie around, exposed to the weather for a few years, well, they are made of rock, so they end up looking almost indistinguishable from mon terrestrial rocks, ones that originated on earth. So it39。t even find one copy on the shelves. Is it a big class? Student Maybe about 75? Employee Well you should ask your professor to put some of the copies on reserve. You know about the reserve system, right? Student I know that you have to read reserve books in the library, and that you have time limits, but I didn39。ve been thinking about getting a job. Um, I39。ll say the additional words were blanket and cherry. Neither of these words was on the original list. And while people will claim correctly that blanket was not on the original list, they39。d be starting so late in the semester, I39。ll certainly talk to my professor about it tomorrow, but what am I gonna do tonight? Employee I guess you could walk around the polisci section and look at the books waiting to be reshelved. Student There do seem to be more than normal. Employee We are a little shortstaffed right now. Someone quit recently, so things aren39。s not on reserve. You39。ve been finding meteorites on Earth for thousands of years, and we39。m not going to go into any depth on ets and asteroids now, but we39。t much about the hero39。s a skilled fighter, willing to face the most extreme dangers, sacrificial, willing to sacrifice anything and everything to protect his king and country. Professor Ok, now, given that the intended audience for these poems were knights and lords, what can we say about the purpose of Chanson poetry? What kinds of feelings was it meant to provoke? Female student Well, I guess they must have been really appealing to those knights and lords who were listening to them. Hearing the songs probably made them feel more patriotic, made them feel like it was a good and noble thing to serve their countries in whatever way they could. Professor Good, we39。s more than one meaning implied with the words that are used. Let’s start with the Chanson poetry first. That39。t take any videos out of the lab. Student OK, so how long can I use a video room for? Manager You can sign up for two hours at a time. Student Oh, good, so I can watch more than one video when I e up here. Is the lab pretty busy all the time? Manager Well, rooms are usually full right after dinner time, but you can sign up the day before to reserve a room if you want. Student Uh...the day before....but I can just stop in too, to see if there is any room open, right? Manager Sure, stop in anytime. Student What about copies of the videos? Is there just one copy of each in the series? I don’t want to miss out if everyone es in at once. Manager Oh, no, we have several copies of each tape in the Spanish Accent series. We usually have multiple copies of everything for each video collection. Student Super. So...how many rooms are there total in the lab? Manager Twenty. They are pretty small. So, we normally get one person or no more than a small group of people in there watching a video together. Actually someone else from your class just came in and took the first Spanish video in to watch. You could probably run in there and watch it with them. Of course, you are wele to have your own room. But sometimes students like to watch with their classmates, so they can review the material with each other afterwards, for example, if there was some content they didn39。s something to think about. Consider humans as part of these ecosystems. You39。s continually flooding the surface, which increases the amount of water below. So where there are wetlands you get a lot of groundwater, and groundwater happens to be a big source of our own drinking water today. All right, so back to the beavers, what if the beavers weren39。s take what you read for this week and see if we can apply this interdependence idea. Mike? Mike Well, um, how about beavers, ecosystems with beavers and waterways? Professor Good, good, go on. Mike Like, well, you can see how it39。s what we would call a customer base, and accessibility to public transportation, which we will get to in just a moment. Now, for a customer base, the most obvious example would be a large office building since the employees could theoretically go shopping after work or during their lunch hour, right? Another really good example is a convention center, which typically has a hotel and large meeting spaces to dra