3.4 Extending skills


asking for information • reporting information


A You are going to listen to a continuation of the lecture in Lesson 3.2. 1 Make a list of points from that lecture.


≤Listen to the end of the last lecture again and check your ideas. 4 Report your findings from the research task in Lesson 3.3, Exercise F.


B Look at the slides for today’s lecture on the opposite page. 1 What is shown in Slide 1?


2 What is shown in Slides 2 and 3? 3 What does the system in Slides 2 and 3 do?


C ≤Listen to Part 1 of today’s lecture. 1 What are the three stages that data goes through?


2 What is the difference between data and information? 3 What is the best way to make notes from this lecture? Prepare a page in your notebook.


D ≤Listen to Part 2 of the lecture. Make notes. If necessary, ask other students for information.


E What is the lecturer going to talk about next? 1


2


F Match the words and definitions. 1 device n


2 instruction n 3 decode n 4 transmit n 5 control (v) n 6 component n 7 cycle n 8 system n


b ≤Listen to the beginning of Part 3 and check your ideas.


≤Now listen to the rest of the lecture. Make notes. If necessary, ask other students for information.


a move information from one place to another b a set of connected devices which work together c one of a number of parts that form something bigger d a continuous process with no beginning or end e an order to do something f regulate or instruct something


g change from a coded form to a recognizable form h an object invented to perform a function


G Draw and label a simple diagram of a control system cycle. Working with a partner, explain your diagram, using some words and definitions from Exercise F.


H Think of a word from this unit for each definition in the blue box.


a binary digit information without a context change information into data a small device which acts on input data


2 What is the lecturer going to talk about today? (Clue: Lesson 3.2. research task) 3


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