根据题目要求完成下列任务，用中文作答。

教学片段：

Step 1  Pre-reading

 The teacher presents some famous figures on the screen and lets students guess who they are.

Step 2  Fast reading

Present the reading topic. Read the three paragraphs and connect them with the three given sentences. The students are asked to explain how they guess if they give a right answer.

Step 3   Detailed reading

 Let students underline some difficult and important words for them. Then ask about the word and give an explicit explanation of each words.

根据材料回答下列问题：