1, there were magnolias in ancient times, but there are anti-epidemic heroes today. By comparing the ancient hero Mulan with the modern anti-epidemic hero, this sentence expresses the praise and admiration for heroes in different periods of ancient and modern times.
2. In ancient times, Li Bai was drunk and wrote poems, but now there are new poems to inherit the culture. This sentence expresses the inheritance and development of ancient and modern culture by comparing the ancient poet Li Bai's drunken poetry with the inheritance of modern poetry.
In ancient times, Sun Yat-sen overthrew the Qing Dynasty, but today, China has risen in the world. This sentence expresses the continuity and development of China's history by comparing the historical events of Sun Yat-sen's overthrow of the Qing Dynasty with the reality of China's rise to become a world power.