The excerpts and appreciation of the metaphor are as follows:

1. Love is a warm ray of sunshine, which can warm a flower, a tree, and a fire. , and even warm the whole world. Appreciation: This sentence uses a simile to compare love to sunshine, which warms every life. Through this metaphor, we can feel the power and importance of love.

2. A dream is like a small boat. Although it floats in the sea, it will eventually reach the other shore. Appreciation: This sentence uses metaphor to compare dreams to a small boat that needs to go through wind and waves to reach its destination. Through this metaphor, we can feel the hardships of realizing our dreams and the importance of firm belief.

3. Knowledge is like a key that can open the lock in our hearts. Appreciation: This sentence uses a simile to compare knowledge to a key that can unlock our inner confusions and problems. Through this metaphor, we can feel the importance and power of knowledge.

4. Love is like a glass of sweet wine, which makes people intoxicated and unable to extricate themselves. Appreciation: This sentence uses metaphorical techniques to compare love to a glass of sweet wine, which makes people intoxicated. Through this metaphor, we can feel the charm and power of love.

5. Time is like a river, constantly flowing forward and never stopping. Appreciation: This sentence uses a simile to compare time to a river, constantly flowing forward. Through this metaphor, we can feel the passage of time and the irrevocability.

6. Memories are like an old photo. Although it has turned yellow, it can still evoke warmth and emotion in our hearts. Appreciation: This sentence uses a simile to compare memories to an old photo, expressing how precious and irretrievable memories are. Through this metaphor, we can feel the mark left by time and the profound meaning of memories.

7. Friendship is like a bridge, connecting the emotions between people so that each other is no longer alone. Appreciation: This sentence uses a simile to compare friendship to a bridge that connects the emotions between people. Through this metaphor, we can feel the importance of friendship, which can make us no longer lonely and more fulfilling and happy.

8. Life is like a marathon. You need to keep running to reach the finish line. Appreciation: This sentence uses metaphor to compare life to a marathon, which requires continuous efforts to reach the finish line. Through this metaphor, we can feel the importance of life's challenges and struggles.

9. Success is like a mountain that needs to be climbed to reach the top. Appreciation: This sentence uses a simile to compare success to a mountain that needs to be climbed to reach the top. Through this metaphor, we can feel the hardship and difficulty of success, but at the same time it can inspire us to have the courage and determination to pursue higher goals.

10. Loneliness is like a desert, making people feel endless loneliness and helplessness. Appreciation: This sentence uses metaphor to compare loneliness to a desert, making people feel lonely and helpless. Through this metaphor, we can feel the horror and difficulty of getting rid of loneliness.