口语主要靠多说，同时可以多背一些成型的段子。针对托福口语的这种段子很多。
至于书籍就太多了。选书倒没有坚持重要。选定一本书不断学才是最关键的。

开始不难，开始了就要从一而终，贵在坚持。每天都坚持读点文章，注意发音，时间有了自然会有效果！选择什么课本看你基础咋样了。。。

Hi buddy,
how you doing today?

We are all good at speaking native language before getting our elementary education, right?
If your purpose is simply to learn how to speak, not to crack a exam,
here is my suggestion:

Get fresh material,
TV shows,
Movies,
or
American television series. etc.

Enjoy the programs first,
then listen to their words,
and recite them daily,
again and again.

My neighbors are right.
Practice makes perfect.

The more you invested,
the better you will be.
The audio book you may be interest in:
how to win friends and influence people by Dale Carnegie.
The unparalleled work will provide the energy you need to fulfil your mission.

Good luck my friend.
Waiting for your good news. :)

我基础还行

另外像诸如英语流利说之类的APP也是一种利用碎片化时间学习英语的渠道。