一、双动句（同一主语连续动作）

1. The cat chased the mouse and then slept on the mat.（猫追老鼠后躺在垫子上睡觉）

2. The athlete sprinted to the finish line and immediately collapsed.（运动员冲过终点线后立即倒地）

3. The chef cooked dinner and then set the table for the guests.（厨师做完晚餐后立即为客人摆餐具）

二、并列双主语句（不同主语独立动作）

1. The teacher gave a lecture and the students took notes diligently.（老师讲课学生认真记笔记）

2. The company launched a new product and the stock price soared.（公司推出新产品股价飙升）

3. The sun rose in the east and the birds chirped melodiously.（太阳从东方升起鸟儿欢快鸣叫）

三、特殊结构句（如兼语或连动）

1. The manager asked the team to complete the task and then praised their hard work.（经理要求团队完成任务后表扬他们的努力）

2. The child caught a ball and threw it to his friend with excitement.（孩子兴奋地接住球后抛给朋友）

3. The company hired a new employee and assigned her to the marketing department.（公司聘请新员工后分配她到市场部）

注意事项：

1. 双动句需注意动作的逻辑顺序，避免混淆；

2. 并列双主语需用“and”或“or”连接，且谓语动词需与最近主语保持一致；

3. 兼语或连动结构需结合具体语境选择合适表达。