摘要：(老师展示一份礼物,但不让学生看见,引出2b.) T: Suppose today is Wang Wei’s birthday. I want to send a present to you, Wang Wei. Can you guess what the present is? Wang Wei: What shape is it? T: It’s a rectangle. Wang Wei: What color is it? T: It’s red. Wang Wei: How long is it? T: It’s 20 centimeters long. Wang Wei: How wide is it? T: It is 15 centimeters wide. Wang Wei: What do I use it to do? T: You can use it to look up new words. Wang Wei: Aha! I get it. It’s a dictionary. T: You are right. Here you are. What color is it? What shape is it? How long is it? How wide is it? look up

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