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人教2003课标版《Learning about Language》优质课PPT课件下载
Book2 Unit 3
Reading
Let’s play a guessing game!
Step 1 Lead-in and warming up
? I am very old now. I was born in China.
abacus（算盘）
Who am I ?
?Many people used me for calculating in
the past.
?But now I am a bit lonely because they
don’t like me any more.
calculator（计算器）
Who am I ?
?I am very small.
?I can be used for calculating.
?In China, a lot of students use me
when solving mathematical problems.
huge computer
Who am I ?
?I was built to solve some difficult
mathematical problems.
?But I was too big. I was even as large as a room.