根据题目要求完成下列任务，用中文作答。 下面片段选自某初中英语课堂教学实录。 T: Good morning, boys and girls. We talked about “The presentperfect tense” yesterday, and I hope you have got some idea about it. Do youstill remember the forms of the tense? S1: Have/Has done. T: You are right, good boy. And who can say a sentence with theform? S2: Let me try. We have learnt English for a few years. T: Very good, thank you. S3: My father have gone to Hangzhou and often tells us about itsbeautiful scenery there. T: Oh, you also remember the form, but then, where is your father?Is he still in Hangzhou or back home now? S3: Back home. T: Oh, I see, you mean your father went to Hangzhou sometime inthe past, and he has come back home from there. And since your father is notyou yourself, not I, next time you should say “My father has been to Hangzhouand often tells us about its beautiful scenery there”. OK? 请根据该教学片段回答下面三个问题： (1)该教师的教学有哪些优点？写出2个即可。（8分） (2)该教师发现学生表达错误时，采取了哪四种具体的纠错方式？（8分） (3)再列出其他两种纠错方式，并各举一例说明。（14分）