英语六级暑期听力练习3

听力是六级考试中的重要题型,考生对这部分的复习一定不能松懈,考生可以充分利用暑期时间坚持练习听力,下面是一篇英语六级听力练习,快来练练吧。

Most people suffering from multiple sclerosis or spinal cord injuries can still move their eyes because they are directly connected to the brain. Some existing technologies already allow severely disabled people to stare at arrows on a computer and direct the movement of a wheelchair.

But there are problems with that system, including a delay between the movement of the eyes and the wheelchair.

"Current tracking software often uses a screen-based system where you have a screen open and you look at locations on the screen. The problem with that is that it's very simplistic and also diverts the users' attention from the outside world and therefore there's more risk of not noticing obstacles or other things in the way," said Kirubin Pillay, a PhD student at Imperial College London.

A team led by Aldo Faisal at Imperial College London has developed software that allows users to maneuver the chair just by looking in the direction they want to take.

"Our eyes are not only a window into our soul, they're also a window to our intentions. So if you want to go somewhere, for example if I want to go there, or go there, I will look there and I will look there in a specific manner, and we can build a computer system that can decode our eye movements, and so we observe eye movements with an eye tracker, and we then try to make sense of them, and the computer interprets these commands and drives the wheelchair accordingly,” said Fasial.

Two cameras trained on the eyes observe their movements and can determine whether a patient is merely looking around or wants to move in a certain direction.

"So essentially we track the pupil of the eye and via a calibration process, we relate that to where the subject's looking in the world around them," explained William Abbott, a researcher at Imperial College London.

Visual information detected by cameras is analyzed by algorithms within 10 milliseconds and translated into instructions for movement that's almost instantaneous.

The camera-based system costs only about $85 because most of the work is done by the algorithms. No expensive hardware is needed. The London team hopes to make the system commercially available within three years.

全面掌握四六级考试信息,为备考复习做准备!

英语六级暑期听力练习3

什么人能考四六级:全日制专科、本科、研究生在校生可报考四六级,其中英语四级考试成绩达到425分以上(含425分)的在校大学生才可报考六级,同一考试批次,四级和六级不能兼报。点击查看更多>>

四六级什么时候考:大学英语四六级考试每年举办两次,分别是6月中下旬的周六和12月中下旬的周六,具体时间每年略有不同,需查看本校教务处报名通知了解。点击查看最新考试时间>>

四六级在哪儿报名:英语四六级考试现在都由各学校组织报名,一般会通过学校的教务网站或者各学院集体报名,报名后还有信息确认的过程,部分学校需要电子摄像。点击查看更多>>

四六级报名费要多少:四六级报名费用由各院校在报名时收取,不同地区及院校收费标准不同,一般在15-70元不等,部分院校不设立现场交费,采取从校园卡或银行卡统一划扣方式收取。点击查看更多>>

四六级考试流程是怎样的:英语四六级是同一天考试,上午考四级,下午考六级。考场上先试音,然后进行作文部分答题,之后是听力部分考试,最后是剩余题型考试。点击查看更多>>

四六级分数怎么计算:大学英语四、六级考试的分数报道采用常模参照方式,不设及格线。四六级考试单项成绩有四个部分,这四个部分以及所占的分值比例为:听力占35%,阅读占35%,翻译占15%,作文占15%。点击查看更多>>

四六级考试改革了哪些:CET考委会宣布从2013年12月考次起对英语四六级考试题型改革。本次四六级考试改革取消了完形填空、快速阅读,增加阅读理解匹配题,复合式听写改为单词和词组听写,句子翻译改为短文汉译英。点击了解更多>>

四六级成绩什么时候出:四六级考试成绩一般是考后两个月左右公布,一般在成绩查询开始前10天左右,四六级考委会网站会公布成绩查询通知,告知大家确切的成绩查询开始时间及成绩查询方式。点击了解更多>>

四六级多少分过:四六级报道成绩满分为710分,凡成绩在220分以上的考生,发给成绩单,不设官方及格线。但考委会规定“四级成绩达到425分以上(含425分)者方可报考六级”,故一般认为四级及格线是425分。点击了解更多>>

  

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