We all need to understand English in order to communicate with others, but we also need to have a good pronunciation. (by "good" I mean understandable- and not "without accent")
The following videos are really helpful.
1. Seth (Amigo Gringo) tells us ways to practice and improve your comprehension/fluency.
2. Gavin (Small Advantages) helps English learners with the word connections in some sentences.
I guess it is all about listening more English... some of these connections will come naturally at some point, but why not start practicing them right now ;)