《2025年经纶学典5星学霸七年级英语上册译林版》

Magic number — 142,857
1 Introduction of a magic number—142,857
* The 2 Maths teacher tells the kids about 142,857 found in the Egyptian Pyramids.
* This number is special because when you multiply it by any number from 1 to 6, the answer will have the same numbers but be put 3 differently.
142,857 in proving there are 7 days in a week
* 142,857, a set of magical numbers, proves there are 7 days in a week.
* The numbers repeat 4 themselves in a cycle of 6, and on the 7th day, 999,999 takes the 5 place of the numbers.
Organizing a Maths fair to show the magic number
* The kids decide to organize a Maths fair to show the magic number of 142,857. They invite other students to 6 join in different activities.
* During the fair, they show students how the numbers rearrange(重新排列) themselves when multiplied by different numbers 7 between 1 and 6.
The effect of the kids' 8 findings on the school and their further study of Maths
* The school is surprised at the kids' findings and the students become 9 interested in Maths.
* The magic number 142,857 becomes a symbol of the kids' interest and love for Maths.
* The kids continue to study the Maths wonders and 10 look for new relationships.

答案： 1. Introduction
2. Maths
3. differently
4. themselves
5. place
6. join
7. between
8. findings
9. interested
10. look