八年级英语下册《Module4NewtechnologyTeachingresources教学资源库》教案外研版.pdf

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1、 Module 4 New technology Teaching resources 教学资源库 I.How to use MP3?Getting started MP3 players are bundled with all the software youll need,including:Drivers that allow your computer to interface with the player A file-management program to then download.The first step is to connect the player to yo

2、ur computer.Most MP3 players are PC-compatible and all of todays players use either Firewire or the USB format to transfer music from your computer.USB 2.0 and Firewire are much faster than USB,if your computer supports them.Once the units batteries fully charged and the software installed,its time

3、to fill it up with tunes!If you already your simply transfer these into the players memory.Or you can use your computers CD-ROM or DVD-ROM drive to convert tracks from the CD format(technically called PCM audio)to MP3.Using compression To understand compression(consider it data reduction),you should

4、 see it in action.Try transferring the same track(preferably something from a well-recorded CD with voices and recognizable acoustic instruments)at different rates of compression.The more compression you use,the more music you can fit into your player.Note,level also means more sonic degradation.How

5、 noticeable this degradation is will vary depending on the music type,the the sensitivity of your ears.A little experimentation can works best for you.Upgrading your MP3 player The to MP3 players,be even weaker than those built in to portable CD players so be sure to check muster with your unit befo

6、re buying.Also,the inherent limits of the format especially at more extreme compression rates will become more apparent through better turn,might drive you toward an MP3 player with more memory so you can get away with less compression.Youre set!Start enjoying your digital tunes.So there you teens l

7、ive in a world enveloped by communications technologies;the internet and cell phones 24%in the past four years and 87%of those between the ages of 12 and 17 are online.Compared to four years ago,teens use of the internet more often and do more things when they are online.Among other things,there sig

8、nificant growth over the past four years in the number of teens who play games on the internet,get news,shop online,and get.Not only,research,and entertainment desires.These technologies enable a variety of methods and channels by which youth can communicate with one another as well as with their pa

9、rents and other authorities.Email,once the cutting edge“killer app,”is losing its privileged place among many teens as they express preferences for instant messaging(IM)and text messaging as ways to connect with their friends.In focus groups,teens described their new environment.To them,email is inc

10、reasingly seen as a tool for communicating with“adults”such as teachers,institutions like schools,and as a way to convey lengthy and detailed information to large groups.Meanwhile,IM is used for everyday conversations with multiple friends that range from casual to more serious and private exchanges

11、.It is also used as a place of personal expression.Through buddy icons or other customization of the look and feel of IM communications,teens can express and differentiate themselves.Other instant messaging tools allow for the posting of personal profiles,or even“away”messages,durable signals posted when a user is away from the computer but wishes to remain connected to their IM network.