Using LanguageⅠ教学设计及说课稿

人教版新课标

高中英语必修二

Unit3 Computers

Using Language Ⅰ教案

Teaching goals :

1.To make the Ss practise listening comprehension. 2.To make the Ss practise making decisions and reasoning.

Teaching important and difficult points:

1.Students can understand the text well and express their ideas. 2.Students can master the useful new words & expressions in this period.

Teaching aids: a computer & a projector

Teaching procedures：

Step1. Words & Expressions preview

Ask Ss to read the new words & expressions together. android; signal; type; coach; arise(arose, arisen); electronic; appearance; mop; niece; in a way; with the help of; deal with; watch over Step2. Lead-in Say: As we know, science and technology is developing very fast and computers have become smaller and smaller. They have been used in many fields. So, the 21st century is the century of information technology What does it mean? Does information technology/ IT only mean things like computers? Of course not. Actually, it means more than computers. Computers are just one kind of IT. What else do you know is part of IT? (TV, radio, CD-ROM, DVD, books……)

1. Ask Ss to discuss in pairs before they listen. Try their best to describe what the 21st century is like. Make a list and compare their ideas with another pair. Question: Do you know IT? What does IT consist of? 2.For reference: Information Technology (IT) is a broad subject concerned with the use of technology in managing and processing information, especially in large organizations. In particular, IT deals with the use of electronic computers and computer software to convert, store, protect, process, transmit, and retrieve information. For that reason, computer professionals are often called IT specialists or Business Process Consultants, and the division of a company or university that deals with software technology is often called the IT department . Other names for the latter are information services (IS) or management information services (MIS), managed service providers (MSP).

Step3. Listening

1.Pre-listening: Ask Ss to listen to the whole text and write down the

main idea in one sentence. (Answer: Two students are talking about information technology.) 2.While-listening: Ask Ss to listen to Part A and fill in the chart below. Then do the same with Part B. Listen to the tape and finish filling in the chart. (If necessary, play the tape for several times.) Then check the answers together.

Part A What does IT include?

Part B Which form of IT describes the TV skills of a sport best?

Which form of IT has the most

Computers functions?

3.Post-listening: Ask the Ss to read the listening text together: WHAT IS INFORMATION TECHNOLOGY?

(L= Laura

D= Dave) Part A D: Hi, Laura. It’s good to see you because I’m so bored . My homework is about Information Technology but I know everything there is to know about it. L: Come off it, Dave. I think I might know more than you. D: OK. Let me test you! Here’s the first question. What’s information technology? L: Gosh, that’s easy! It’s computer, of course.

D: Ah! That’s just where you’re wrong. It includes books, radio and TV as well. L: Really! Well, I never. D: Question number 2. Which is the most popular form of IT in the world? L: Well, that must be computers this time. D: No, it’s books. Think of all those people in developing countries without computers. Their only form of IT is books! L: Oh dear! I’m not doing very well.

Part B books, radio and TV books What is the most popular form of IT?

D: Here’s the third question. Which form of IT is the best for describing the skills of a sport? L: It must be the radio. D: Actually, it’s not. The best descriptions are on the TV because you can not only hear the technical language, but also see how it happens. L: Goodness! Wrong again! D: Here’s the last question. Which form of IT has the most functions?

L: This time I must be right. It’s the computer, of course.

D: Yes. You can watch a film, replay a match, communicate with friends through the Internet, get information and find out what’s going on in the world. L: Oh dear! Three questions wrong out of four. Perhaps I don’t know as much about IT as I thought I did! Step4: Discussion 1.Pre-discussing: What are the advantages and disadvantages of each form of IT? Ask Ss in small groups to discuss this question and put their ideas on to the chart. Then decide when each kind of IT is most useful. 2.While-discussing: (1).Go through the chart and make sure the students look at the chart before they discuss. (This is to sharpen their attention and listen for the answers. This will also help them get the gist of the discussion.) Ask Ss to use these reasoning expressions in their discussions. (The advantage / disadvantage is …./ I think / don’t think that …. /Give me your reasons./ What makes you think so?/ I think …. because (of) …./ Let’s decide…/ As/Since…, I think…./ I agree / don’t agree … because …./ First .… Second …./ I’ve decided that…. / I believe that …./ Let’s make a decision.)

(Pair work)Use the expressions to support your opinion or challenging other’s opinions.

Language input: Useful expressions (Repeat it to strengthen students’ ability of use it.) (2). Oral report: (individual work ) Ask several students representatives to show their oral reports. 3.

Post-discussing: Teacher show one sample answer to the Ss. Conclusion—What useful expressions do we use to support our opinions and reasons? (In this way, they can review and use the words and phrases again.)

Type of IT

Advantages

Disadvantages

Computer You can find information．

It is not always accurate.

You can both listen and TV You cannot write to friends. watch. Book You can get information．

Sometimes it is out of date．

Radio You can listen to English. You cannot watch a film. Step5.Conclusion Ask the Ss to think about what useful words & expressions they have learnt in this lesson. (In this way, Ss can review and use the words and phrases again.) Step6. Homework Review the words & expressions in this lesson after class. Preview the text in reading and the new language points. Finish the exercises in workbook.