2018年5月12日托福听力机经

-本文为网络收集精选范文、公文、论文、和其他应用文档，如需本文，请下载-2018年5月12日托福听力机经本文从网络收集而来，上传到平台为了帮到更多的人，如果您需要使用本文档，请点击下载按钮下载本文档（有偿下载），另外祝您生活愉快，工作顺利，万事如意！托福考试对于考生来说，成绩都是很重要的，那么大家如何进行备考呢，多看机经也是一种方法，下面就和出国留学网小编一起来看看2019年5月12日托福听力机经预测。Narrator：Listen to a conversation between a student and her biology professor.Professor：Hi， Suzanne. Youve been keeping busy？Suzanne：Really busy. Its that time of the semester. Im glad I turned in the first draft as my paper for your class ks for getting to it so quickly and for seeing me today.Professor：Sure. Yes， it looks like it will be a good paper. Great topic but I think it could use a little more work because its just that I found it a bit unclear in places so I want to make sureI understand what you intended to do before I make suggestions for admissions.Suzanne：OkayProfessor：So can you summarize， tell me in a few sentences the main ideas you want to get across？Suzanne：Okay. Well， honeybees can communicate the location of food to other honeybees and the idea was to describe how they use Earths magnetic field in that process.Professor：To help them communicate？Suzanne：No， to help them find their way， to navigate.Professor：Okay. See， I wasnt sure you separated those two that honeybees could communicate with other honeybees and two， that they might be using the magnetic field but only for navigation.Suzanne：Oh.Professor：Are you sure you understand that？Suzanne：I think so. After they find food and return to the hive， they move in different ways to communicate different things. Like they do a simple dance， the round dance， to communicate that a food source is nearby. But they do a more complex dance， the waggle dance， if the food isfarther than， like seventy-five meters away. Both dances convey information about the distance from the hive to the food source and the waggle dance conveys the direction of the food from the hive.Professor：Okay， good. And where is the magnetic field for that？Suzanne：Well， they have cells in their body that contains iron. So we assume that theyre able to sense Earths magnetic field， which might help them navigate. Its likely that they have an internal compass，like if they get blown off course by the wind， they can get back on course.Professor：Okay， good. The thing is in your draft， it rather showed that the magnetic field was irrelevant to the bee dance that the magnetic field was irrelevant to the bee dance through communication. I looked over your list of sourcesand I thought I could see why.Suzanne：Theres a problem with my sources？Professor：Well， the article you sited on magnetic navigation isnt very academic. Its more of a general interest article. I thought that maybe you relied too much on its wording soI was going to suggest you go back and find the originalresearch report which presents the information in a moreprecise and clear way. But maybe you just need to reviseyour own wording in your paper. I think when you look at it again you will know what Im talking about. If you have any questions， come by again.答案1. B 2. B 3. C 4. B 5. D1. Why does the student go to see the professor？A. To find out why the mining industry in the western United States declined in the1800sB. To find out how to improve the first draft of a paper she is writingC. To ask the professor to recommend sources of information for a research paperD. To get advice about a possible topic for a research paper2. What aspect of the history of Park City， Utah， interests the student？A. The reasons Park City went through periods of economic hardship and successB. The reasons Park City became a destination popular among skiersC. How Park City became the main source of silver in the United StatesD. Why Park City recovered from a national recession more quickly than othertowns did3. What does the professor say were two important factors in the decline in silvermining in Park City， Utah？Click on 2 answers.A. The increasing cost of extracting silverB. A decline in the price being paid for silverC. The higher wages being paid to miners in other placesD. A national downturn in economic activity4. Why does the professor mention the town of Bodie， California？A. To emphasize the economic problems in the mining industry during the early1900sB. To illustrate the wide appeal of skiing in the United States in the early 1900sC. To give an example of a former mining town that survived without becoming aski resortD. To give an example of a town that remained a mining town well into the 1900s5. What do the student and professor agree that the student should do as part of herresearch？Click on 3 answers.A. Try to find firsthand accounts of life in mining townsB. Investigate in detail the events in a few specific townsC. Consider the role of flooding in the decline of Bodie， CaliforniaD. Determine why most faile