下列教学片段选自某高中课堂实录,阅读后回答问题。
T: Today we are going to talk about "travelling". Mike, have you ever traveled
M: Yes, I have ever been to Beijing.
T: When did you go there
M: Last summer.
T: How did you go there
M: We went there by bus.
T: Why did you go there by bus
M: Because it isn′t too far away from here and it′ s very convenient to go there by bus.
T: Good. How about you Li Ming, have you ever travelled
L: Yes, I have been to Hainan last winter vacation.
T: How did you go there
L: I went there by plane.
T: Why
L: Because it′s too far from here and we can save lots of time by going there by plane.
Ask more students like this.
根据上面所给信息,回答下面三个问题:
(1)该片段反映了教学中哪个环节
(2)分析该教学环节的目的。
(3)从教学有效性角度评析这个片段。