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1、托福TPO18套听力真题文本小马过河为大家准备了“托福TPO18套听力真题文本， 供各位备考托福的考生们参考使用，来提高自己的托福成绩！免费咨询 ：400-0123-267。TPO-18Listening1A: Hi ! I hope you can help me . I just transferred from Northeastern State University near Chicago.B: Well welcome to Central University .But Chicago is such agreat city.Why did you leave?A: Every
2、one asks that. Its my hometown. And it was sure convenient to go to a school nearby. But Northeastern is still fairly small. And it doesnt have the program Im interested in. I want to major in international studies. And the only program int the State is here.A: We do have a great program. Well how d
3、id you get interested in international studies?B: My family hosted a few foreign exchange students while I was growing up. Then I took part in an international summer program after I graduated from high school. I thought I reallyI like meeting people from all over,getting to know them.A: OH! Ok! And
4、 that led you to our program. Right now though I think you are looking for a job.B: Yeah,a part time job on campus. I thought Id save money,being away from the big city.But it doesnt seem to be working that way .Anyway Im not having muchluck.A: Im not surprised. Most of our campus jobs are taken in
5、the first week or two of the semester.What work experience have you had?B: Well,I worked in the university library last year.But I already checkedat the library here.They said their remaining positions were for work-study students getting financial aid.Ive never run into that before.A: Well, I guess
6、 each school has its own policies. Uh, we really dont have much right now.You mightbe better.If you really want something, how are your computer skills?B: About average Id say. I helped teach some of the basic computer classes. Northeasternoffers for new users, ifthat helpsany.A: OK, The technology
7、support department needs people to work its helpdesk. Its basicallya customer service job, answering questions, helping people solve their computerproplems,give you a chance to developyour people skills.B: Something every diplomat needs. But is there some problem? I mean why is the job stillopen?A:
8、Well,they have extended hours, from 6am to 2am every day. So they need a large staff.But right now they only need people early mornings, late nights, and weekends. Youdprobably end up with a bit of everything rather than a regular spot. On the bright sideyoull probably be able to get some studying d
9、one between calls. At least it could be astart and then you can try for better hours nextsemester.B: Um, I see why the hours might be a problem.But Iguess I cant afford to be too picky ifIwant a job.Still maybe we can work something out.Listening2We are going to start a study of sunspots today, and
10、I think youll find it rather interesting.Now Im going to assume that you know that sunspots, in the most basic terms, are darkspots on the Suns surface. That will do for now. The ancient Chinese were the first torecord observations of sunspots as early as the year 165. When later Europeanastronomers
11、 wrote about sunspots, they didnt believe that the spots were actually on theSun. Thats because of their belief at the time that the heavenly bodies, the Sun, Moon,Stars, and Planets, were perfect, without any flaws or blemishes. So the opinion was thespots were actually something else, like shadows
12、 of planets crossing the Suns face. Andthis was the thinking of European astronomers until the introduction of the telescope,which brings us to our old friend, Galileo. In the early 1600s, based on his observations ofsunspots. Galileo proposed a new hypothesis. He pointed out that the shape of sunsp
13、ots,well, the sunspots werent circular. If they were shadows of the planets, they would becircular, right? So that was a problem for the prevailing view. And he also noticed that theshape of the sunspots changed as they seemed to move across the Suns surface. Maybe aparticular sunspot was sort of sq
14、uare, then later it would become more lopsided, then latersomething else. So there is another problem with the shadow hypothesis, because theshape of a planet doesnt change. What Galileo proposed was that sunspots were indeed afeature of the Sun, but he didnt know what kind of feature. He proposed t
15、hat they mightbe clouds in the atmosphere, the solar atmosphere, especially because they seemed tochange shape and there was no predicting the changes, at least nothing Galileo couldfigure out. That random shape changing would be consistent with the spots being clouds.Over the next couple hundred years, a lot of hypotheses were tossed around. The spotswere mountains or holes in the solar atmosphere through which the dark surface of theSun could be seen. Then in 1843, astronomer named Heinrich Schwa be made aninteresting claim, Trobe had
