1. Modal verb for possibility: "can be a huge source of inspiration" uses 'can' to express possibility, which is natural and appropriate for IELTS speaking.
2. Present participle phrases: "Watching athletes push their limits and show dedication" uses present participle phrases to describe actions, making the sentence more dynamic and fluent.
3. Infinitive of purpose: "to work harder in their own lives" and "to get more active" use the infinitive form to explain the purpose or result, which is a common and effective structure.
4. Complex sentence with 'as': "as they feel inspired by the achievements and determination of their favorite athletes" adds a reason, showing the ability to connect ideas smoothly.