以下是一些即席演講的英文金句：
1. "Thank you for giving me the opportunity to speak today."
2. "I'm here to share my thoughts and ideas, and I hope to inspire everyone in this room."
3. "Let's open up the conversation and take a step forward together."
4. "My message today is simple but important: we need to..."
5. "I hope my words will spark a discussion and lead to positive change."
6. "It's time to break the barriers and build bridges of understanding."
7. "Our differences should not divide us, but rather serve as a source of strength and creativity."
8. "Life is too short to hold on to fear and doubt, it's time to embrace the opportunities that lie ahead."
9. "I believe in the power of unity and collaboration, let's work together to create a better future."
10. "Thank you for listening, I hope my words have left a lasting impact."
請注意，這些句子只是一些示例，您可能需要根據自己的演講主題和場合進行調整。