【正文】
h? S(predicted): Englsh T: Are you sure? I am afriad not. I’d like to teach you math today. Are you good at math? Let’s do some quizzes to see how well you r math is. Q1: How many boys are there in our class? S(predicted): Thirteen. (The teacher writes down the number on the blackboard) Q2: How many girls are there in our class? S(predicted): Twelve. (The teacher writes down the number on the blackboard ) Q3: How many students are there in our class? S(predicted): Twentyfive. (The teacher writes down the number on the blackboard) Q4: How do you know? Suggested answer: Add thirteen and twelve. We get fifteen. Thirteen plus twelve equals fifteen. So our cl