实用综合教程第二版3 unit1 电子教案课件

home,Objectives,In this unit, you will, listen to a passage about the Internet; read about how American young people use instant messaging; enlarge your vocabulary related to computers and the Internet; study direct speech and indirect speech; read about Steve Jobs and his wonderful inventions; read and write a product description.,Objectives,main,Listening and Speaking,Text A,Grammar Tips,Text B,Comprehensive Exercises,Practical Reading and Writing,Warm-up,1. The Internet The Internet is made up of many interconnected computer networks. Each network may link tens, hundreds, or even thousands of computers, enabling them: to share information with one another, to share computational resources, and to communicate with one another effectively and inexpensively.,Warm-up-Background Information,Discussion,Background Information,An individual who has Internet access can: communicate directly with anyone else, make information available to others, find information provided by others, or sell products with a minimum overhead cost.,Warm-up-Background Information,Background Information,Discussion,2. The use of the Internet Companies, individuals, and institutions use the Internet in many ways. Companies:,Warm-up- The use of the Internet, electronic commerce, also called e-commerce, including advertising, selling, buying, distributing products, and providing customer service; business-to-business transactions, such as exchanging financial information and accessing complex databases.,Background Information,Discussion,Businesses and institutions: voice and video conferencing and other forms of communication online news and weather services. Scientists and scholars: to communicate with colleagues, do research, distribute lecture notes and course materials to students, and publish papers and articles.,Warm-up- The use of the Internet,Background Information,Discussion,Individuals: communication, entertainment, finding information, buying selling goods and services.,Warm-up - The use of the Internet,Background Information,Discussion,3. Mobile Internet and Mobile Devices The Mobile Internet refers to access to the Internet from a handheld mobile device, such as a smartphone or a tablet computer, through a mobile network or wireless network.,Warm-up-Background Information,Background Information,A mobile device is also known as a handheld device, handheld computer or simply handheld. It is a small, handheld computing device, typically having a display screen with touch input.,Discussion,Question: What can we do on the Internet?,The Internet can be useful in many ways to individuals, businesses, and institutions. For more information, see “The use of the Internet ” in the Background Information section of this unit.,Hints,Warm-up- Discussion,Discussion,Background Information,You will hear a recorded passage. After that you will hear five questions. Both the passage and the questions will be read twice. When you hear a question, you should complete the answer to it with a word or a short phrase (in no more than three words).,1. What is the Internet? The Internet is a that connects millions of computers worldwide.,network,_,Listening,Speaking,Listening,I. Listening,Script,2. What can we do with the Internet? The Internet helps many people communicate, work, learn, and .,have fun,_,Listening,3. How do people view websites? People view websites using called Internet browsers. 4. What makes use of the Internet quicker and easier? Advances in make using the Internet quicker and easier.,computer programs,_,technology,_,Speaking,Listening,5. What is happening when more and more people use the Internet? As more and more people use the Internet, the grows.,quantity of information,_,Listening,Speaking,Listening,Speaking,Discuss with your partner the advantages and possible problems for young people using the Internet and how we could keep the problems under control. In the space provided below, list the advantages, problems, and solutions. Get ready to present your major points to the class.,II. Speaking,Speaking,Listening,1. Advantages: _ 2. Possible problems: _ 3. Possible solutions: _,Hints,Hints,Hints,Speaking,Advantages:,Advantages for young people making use of the Internet might include: 1) learning through online education programs; 2) free downloading of books, music, and videos for information or entertainment; 3) making friends from different places; 4) reading the latest news to learn whats happening around the world; 5) receiving timely information; 6) playing exciting games, etc.,Speaking,Listening,Speaking,2. Possible problems:,Possible problems might include: 1) becoming addicted to the Internet while neglecting everything else; 2) imitating the violence in online games; 3) safety problems resulting from making decepti