课本book2unìt3单元演示课件.ppt

Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. A has something to do with B A has nothing to do with B Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. compare A with B A is compared with B Compared with A, B… Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Read the whole passage as fast as you can. Try to get the main idea of this passage . Find out the topic sentence of each paragraph and underline them. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. The topic sentence of each paragraph. Para 1 Para 2 Para 3 Over time I have been changed a lot. Those changes only became possible as memory improved. Since 1970s many new applications have been found out for me. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Choose the main idea of this passage. The computer wants to find “who he is”. B. The function(功能) of the computer. C. The computer becomes popular around the world. D. The history and the applications of the computer. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Fill in the chart with the information in para 1. Time Machine Applications In 1642 A ________ machine ________difficult sums About in _____ An analytical machine Think_________ In 1936 A ________ machine Solve any difficult problem By the 1940s A larger machine ______worried the designers ____________ Personal computer Laptop ______________________________ 1822 calculating Simplify logically universal Used in offices and homes Since the 1970s Reality Evaluation only. Created wit