下列教学片段选自某中学课堂实录，阅读后回答问题：
T: OK! Next, let’s read the text and choose the best heading for each paragraph. Read the passage and choose the best heading for each paragraph. (5 minutes later)
T: Now, who can show us the answer?
S1: B, A, C, F, E.
T: You are clever, but, do you have any other ideas for Paragraph 3?
S1: Oh, sorry, It's D.
T: Excellent! Now we have known the main meaning of each paragraph. This time let's read each paragraph carefully. Then, make a group discussion and try to fill in the form.10minutes please. (10 minutes later.)
T: Time is up. Which group wants to show your form to us? OK, Group 1.
S2: ...
T: Well done. Do you agree with them?
