根据题目要求,完成下列任务,用中文作答。 以下片段选自某课堂实录。请分析该教学片段并回答下列问题:? (1)该教师采用什么方法授课? (2)这些方法有什么利弊? T: Look. It's a rainbow. Oh, it's beautiful! What colour do you like? I like purple. SI: I like yellow. pears (T: What are they?? Ss: Pears. T: How many pears can you see? Ss: I can see ... T: Do you like pears? Ss: Yes, I do./No, I don't.) $2: I like green. --watermelons $3: I like orange. --oranges T: Look, I like pink. Can you guess? What are they?