目录：

1.Hope and Love
2.Attitude to Life
Challenging Yourself A Optimistic Outlook
3.Festivals and Traditions
4.Food and Culture
Challenging Yourself B Culture behind Eating
5.Places of Interest
6.Travelling Worldwide
Challenging Yourself C Exploring the World

目录：

1.Culture in Names
2.Non-verbal Communication
Challenging Yourself A Cultural Communication
3.Earth Protection
4.Space Exploration
Challenging Yourself B Mysterious Planet
5.History and the World
6.China and the Future
Challenging Yourself C Historical Heritage

目录：

1.Choice and Decision
2.Dilemma and Solution
Challenging Yourself A Eternal Love
3.Discovery and Innovation
4.Invention and Civilisation
Challenging Yourself B Remarkable Contribution
5.VR and Our Life
6.Al and Our Future
Challenging Yourself C High-tech Innovations

目录：

1.Plants
2.Animals
Challenging Yourself A Man and Pets
3.Dreams and Dreamers
4.Perseverance and Success
Challenging Yourself B Great Figures
5.Olympic History
6.The Spirit of Sports
Challenging yourself C Olympic Pioneers

目录：

1.Learning Strategies and Habits
2.Being a Good Language Learner
Challenging Yourself A Forming Learning Hahits
3.Powerful Music
4.Unforgettable Films
Challenging Yourself B Enjoying Sports and Music
5.Amazing Animals
6.Surprising Plants
Challenging Yourself C Knowing More about Animals

目录：

1.Festivals and Celebrations
2.Honesty and Care
Challenging Yourself A Wise Ideas
3.Special Clothes
4.Healthy Diet
Challenging Yourself B Daily Life
5.Art and Culture
6.Poems and Stories
Challenging Yourself C Artistic Taste

目录：

1.Favourite Teachers
2.Helpful Schoolmates
Challenging Yourself A Talking about Education
3.Friends and Friendship
4.Parents and Children
Challenging Yourself B Universal Love
5.Natural Disasters
6.A Greener Earth
Challenging Yourself C Taking Action