新一代大学英语视听说教程1 u4 ppt课件

Social Media and Online Safety,Unit 4,Warm-up,01,Listening and Speaking,02,Viewing and Speaking,03,CONTENTS,Project,04,1,Warm-up,1 Social media is the collective of online communication channels for community-based input, interaction, content-sharing and collaboration. Work in pairs to name some common social media home and abroad, and talk about why you tend to use some communication channels rather than others.,Warm-up,Facebook is a popular free social networking website that allows registered users to create profiles, upload photos and videos, send messages and keep in touch with friends, family and colleagues. According to statistics from the Nielsen Group, Internet users within the United States spend more time on Facebook than any other website. Twitter is a free microblogging service that allows registered members to broadcast short posts called tweets. Twitter members can broadcast tweets and follow other users tweets by using multiple platforms and devices.,Reference answers,Warm-up,Wikipedia is a free, open content online encyclopedia created through the collaborative effort of a community of users known as Wikipedians. Anyone registered on the site can create an article for publication; registration is not required to edit articles. Wikipedia was founded in January of 2001. LinkedIn is a social networking site designed specifically for the business community. The goal of the site is to allow registered members to establish and document networks of people they know and trust professionally.,Reference answers,Warm-up,Besides the above-mentioned communications channels, we have QQ, Microblog, WeChat, etc. The first one I used is QQ, because it first came into existence. The biggest advantage of it is that it enables me to send large attachments. I still use it now when I am in front of the computer. I also use Microblog, but I use it less often now, because not many people use it now. This implies ones choice of communications channels is affected by others. Its main function, I think, is like a diary, which is a record of what I do, and what I think. It is also focused on current social events.,Reference answers,Warm-up,What I use the most often now is WeChat. It is a mobile text and voice messaging communication service developed by Tencent in China, first released in January 2011. It is the largest standalone messaging app by monthly active users. It is the newest app among the three, but probably has the most users now. WeChat provides text messaging, hold-to-talk voice messaging, broadcast (one-to-many) messaging, sharing of photographs and videos, and location sharing. Photographs may also be embellished with filters and captions, and a machine translation service is available. So I use it to send text messages, voices, photos both for fun and for work.,Reference answers,Warm-up,2 Work in groups. Each of you introduces one of your favorite apps. You may refer to the following points. name function intended users popularity how to use it room for improvements,Warm-up,I like to use many apps, such as Kuwo Music (酷我音乐), Meituxiuxiu (美图秀秀), Dazhongdianping (大众点评), and Tushubiji (涂书笔记). Many others must know the former three. So I will introduce the last one, Tushubiji. The name is interesting, because it reads like Dushubiji, which means that one takes notes while reading. But the first word in this app is “tu”, which means “daub”: to highlight, or include a certain area of the photo you have just taken of a book page. Its main function is to convert the printed words in a book into electronic version. It is intended for those who often read books, and who are relatively more high-tech such as teachers and students. It works very easily. First, you download it to your smartphone, and then log in it. But you have to register, or use your sina Microblog username if you already have one.,Reference answers,Warm-up,You open the app, take a photo of the few lines of a book page that you want to record, and then daub the part you want with your finger, press the tick () icon. Miraculously, you will see that the part of the photo you daubed just now has transformed into Chinese characters in a word file if the book is in Chinese. If the book is in English, you just need to press “English”, then the photo will be transformed into English words. Then press “next step” and “finish” to save the note. You may edit, and share the note if you like. The drawback is that the area you may scan and record is relatively small, may be just half a page. But its better than none. It is a very new app, and I hope it will be improved as time goes on.,Reference answers,Warm-up,2,Listening and Speaking,Topic One What is mass media?,1 Listen to a talk and choose the best answer to the questions.,Listening and Speaking,What is mass media?,Listening and understanding,1 Which of the following is NOT a form of mass media? B. Alternative media. 2 Why do many media outlets have a web presence? A. To make full u