一、动作描写（句式：现在分词 Doing 开头）
1. 一想到妹妹，Ali 挣扎着爬起来，奋力赶上其他选手。（think of；struggle to one's feet；catch up with / Doing，主语+谓语）
2. 深吸一口气，他朝着终点线全力冲刺。（take a deep breath；head for / Doing，主语+谓语）
3. 紧紧攥着鞋子，Ali 快步朝家走去。（hold…tightly；walk home / Doing，主语+谓语）
4. 看到这双新鞋，一抹灿烂的笑容在 Zahra 脸上绽放开来。（catch sight of；spread across / Doing，主语+谓语）
二、情绪描写（句式：过去分词 Done 开头）
1. 满心欢喜，Zahra 一把抱住哥哥。（fill with delight；hold sb in a hug / Done，主语+谓语）
2. 被巨大的惊喜震撼，他一时说不出一句话。（overwhelm with surprise；utter a word / Done，主语+谓语）
3. 疲惫又失望，Ali 差点想要放弃比赛。（tired and disappointed；give up / Done，主语+谓语）
4. 内心充满满足感，Ali 静静地看着开心的妹妹。（be filled with contentment；look at / Done，主语+谓语）
三、心理活动描写（句式：分词状语 / 主句，which…）
1. 担心会让妹妹失望，Ali 忍不住落下泪来。（fear；let sb down；can't help doing / Doing，主语+谓语）
2. 他意识到一定出事了，于是立刻跟着小狗奔向河边。（think；something must be wrong；follow / 主句，which 定语从句）
3. 让他大为惊讶的是，撞他的选手主动把鞋子送给了他。（to one's surprise；collide with；hand sth to sb / To one's surprise，主句）
4. 他意识到善意拥有强大的力量，这能让世界更加美好。（realize；kindness；make…beautiful / 主句，which 非限定性定语从句）
答案：
一、动作描写（Doing 开头）
1.Thinking of his sister, Ali struggled to his feet and tried to catch up with the other boys. 2.Taking a deep breath, he headed for the finishing line at full speed. 3.Holding the shoes tightly, Ali walked home quickly. 4.Catching sight of the new shoes, a big smile spread across Zahra's face.
二、情绪描写（Done 开头）
1.Filled with delight, Zahra held her brother in a tight hug. 2.Overwhelmed with surprise, he could not utter a single word. 3.Tired and disappointed, Ali almost wanted to give up the race. 4.Filled with a sense of contentment, Ali looked at his happy sister quietly.
三、心理活动描写（分词状语 /which 从句）
1.Fearing that he would let his sister down, Ali couldn't help shedding tears. 2.Thinking something must be wrong, he followed the dog to the riverside immediately. 3.To his great surprise, the boy who had collided with him handed the shoes to him voluntarily. 4.He realized kindness held great power, which could make the world more beautiful.
