StepⅡReading Strategy—Reading practice
1.Fast reading: get the main idea (B级)
（Reading strategy 1 →Get the general idea and read the text fast. Don’t worry about the words that are new to you.）
The purpose of this article is _______.
- the introduction of Albert Einstein
- the introduction of the process of scientific breakthrough
- introduction of the major scientific discoveries in the 20th century
- the contributions scientists made to the world
