英语口语中常见的连接词包括并列连接词如"And"、"Or"、"But"，递进连接词如"Also"、"Furthermore"、"Moreover"，以及转折连接词如"However"、"Although"、"Despite"。这些连接词可以使句子结构更清晰，增强句子的表达力和连贯性，使听者更易理解说话者的意思。

1. 并列连接词

And - 连接两个相似的事物。例如：I like to read books and watch movies.

Or - 表示两个选择中的一个。例如：Do you want tea or coffee?

But - 连接两个相反的事物。例如：It's raining, but I don't want to stay inside.

2. 递进连接词

Also - 用于连接同一主题的另一个事实。例如：She is a great athlete. Also, she is an excellent student.

Furthermore - 表示另一个进一步的事实。例如：She is an excellent student. Furthermore, she volunteers at a local hospital.

Moreover - 表示一个重要的事实。例如：He speaks French fluently. Moreover, he has lived in France for two years.

3. 转折连接词

However - 表示对比或转折。例如：She is very talented. However, she needs to practice more.

Although - 引出一个对比的想法。例如：Although it's raining, I still want to go for a walk.

Despite - 表示尽管某事发生，但结果并非如此。例如：Despite studying hard, he still failed the exam.