1、The Third Period ListeningTeaching goals 教学目标1. Target language 目标语言重点词汇和短语restriction, publish, copyright, virtual library, Internet, reliable, broaden, extract, search engine, globe, online, researcher, collection, recognize, come up, Web2. Ability goals 能力目标 Enable students to talk about virtual
2、library. 3. Learning ability goals 学能目标Help students learn how to talk about virtual library. Teaching important points 教学重点Listen and talk about virtual library. Teaching methods 教学方法Listening and cooperative learning. Teaching aids教具准备A tape recorder, computer and slides.Teaching procedures & ways
3、 教学过程与方式Step I Revision and lead-inCheck the homework and then talk about computer science with the class. T: Who could have imagined, in the mid 1970s, for example, that by the end of the 20th century, computers would be as common in peoples homes as TV sets? In the 1970s, computers were common eno
4、ugh, but only in big business, government departments, and large organizations. These were the so-called mainframe machines. Mainframe computers were very large indeed, often occupying whole air-conditioned rooms, employing full-time technicians and run on specially-written software. Though these la
5、rge machines still exist, many of their functions have been taken over by small powerful personal computers, commonly known as PC. Almost all of young people have personal computers of their own. All teenagers enjoyed playing computer games and surfing the Internet. If you click onto a search engine
6、 webpage and type in the word “Internet”, youll see a list of weblinks appear on the computer screen. The greatest impact of the Internet has been the creation of the World Wide Web. Do you know who is the father of the World Wide Web?S: Tim Berners-Lee (1955). T: What do you know about him?S: As a
7、child, Berners-Lee made computer models out of old cardboard boxes. While at Oxford University, England, he built his own computer using an old TV and a few electronic spare parts.S: After university, Berners-Lee worked for the European Council for Nuclear Research. With the help of fellow researche
8、rs, he built a special system for information searching. This system evolved into what became known as the World Wide Web.T: Now great changes have taken place of the WWW. Now lets find out what happened. Step II Listening (1) Pre-listening Ask students to do activity 1 first. Ensure that theyve all
9、 master the vocabulary. Listening Ask students to listen to the recording and finish activities 2 and 3. Then check the answers with the class. DiscussionAsk student to work in pairs and discuss the advantages and disadvantages of a virtual library.Sample report about advantages and disadvantages of
10、 a virtual library: Advantages:1. cheap or low cost 2. simply and easy to get 3. texts are often accompanied with good sound quality and picturesDisadvantages:1. easily to be distracted 2. long expose to radiation Step III Listening (2) Help students finish Listening on page 119 in the workbook.T: T
11、heres been a huge change in the way we prepare for war, and the soldiers were training now are the children of the digital age who grew up with GameBoys, said a retired 33-year U.S. Navy soldier. Its an amazing progress for soldiers to practice shooting and fighting without taking real person as tar
12、gets. Now look at the caption and the photo on page 119 and answer the questions. Then ask students to listen to the tape and finish the rest activities. Check the answers with the class. Sample answers to activity 12:1. He is doing a war exercise. 2. To do a war exercise through VR systems engages
13、him with interactivity, and invites him to be active in the experience, as if he are really there.3. Virtual reality: An artificial environment created with computer hardware and software and presented to the user in such a way that it appears and feels like a real environment. The term virtual reality is sometimes used more generally to refer to any virtual world represented in a computer, even if its just a text-based or graphical representation.Step IV HomeworkAsk students to listen to the recordings again and preview READING AND VOCABULARY.
