Lesson 1 of the second volume of the second grade of junior high school. What are the themes, slogans, introductions, layers and backgrounds in the two news items? urgent!

Title: One million troops of the People's Liberation Army crossed the Yangtze River

Introduction: One million troops of the People's Liberation Army broke through the enemy's lines and crossed the Yangtze River from a front of more than 1,000 miles. Starting from Jiujiang in the west and reaching Jiangyin in the east, they are all crossing areas of the People's Liberation Army.

Stratification: The People's Liberation Army's one million troops - 300,000 people have been spent

The afternoon of the 21st - no effect at all

Tang Enbo Thinking - Wuxi Section Railway Line

Background: Just like the enemies encountered by the Central Route Army, the enemies faced by our West Route Army also retreated one after another, without any fighting spirit. The resistance our army encountered was very weak.