高一必须修读2Unìt3演示课件——.ppt

Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. The technology develops so quickly that many new things appear in human being’s life. Let’s guess what they are: Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. I am very old now. I was born in China. Many people used me for calculating(计算) in the past, but now I am a bit lonely because they don’t like me now. Do you know who I am? abacus Guess : Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical(数学的) problems. Do you know who I am? calculator Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Solve a riddle : one thing It has a big face with many keys It has two big ears which can play music You can watch TV or see a movie using it It can be seen in the office, classroom and at home. It can download information guess Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Do you know who I am ? Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. A huge computer “银河”巨型计算机 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. We can see many brands of computers Lenovo 联想 Haier 海尔 神州 Tinghuatongfang清华同方 惠普 Dell TCL Acer宏基 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. thinking 1. What do they have in common? （Using some of the following expressions in your discu