Most people seem to have more bad dreams early in the night, progressing toward happier ones before awakening, suggesting that they are working through negative feelings generated during the day.

【翻译】多数人似乎在前半夜做不好的梦多一些，而在快睡醒时会逐渐做一些比较开心的梦，这说明人们在梦里逐渐消除白天产生的消极情绪。

【分析】

一、重要词组：

1. early in the night：晚上稍早时；晚上早些时候；前半夜

2. progressing toward：朝着......发展

3. working through：克服；消除

4. generated during the day：在白天产生的。作定语修饰negative feelings。

二、结构分析：

1. Most people （主语）seem to have （谓语）more bad dreams （宾语）early in the night（时间状语）：这是句子主干部分

2. progressing toward happier ones before awakening：现在分词短语，作伴随或方式状语，逻辑主语是句子的主语Most people。

3. suggesting that they are working through negative feelings generated during the day：现在分词短语作非限制性定语，其逻辑主语为前面整个句子的内容。可以转换为非限制性定语从句：which suggests that they are working through negative feelings generated during the day，which指代整个前文的内容。

由此说明progressing 和suggesting 不是并列关系，之间没有and 连接，也说明这个问题。