As you know, spoken English words with two or more syllables have different stress and length patterns. Some syllables are stressed more than others and some syllables are pronounced longer than others.
The same is true of phrases and sentences. Different words in a sentence have stronger stress and are pronounced longer and other words are weaker and shorter. This pattern of strong and weak stress and short and long pronunciation gives English its rhythm.
It is important for non-native speakers to understand and master the rhythm of English. If the wrong words are stressed in a sentence or if all words are pronounced with the same length or loudness, the speech will be difficult to understand.
Here you can watch some more nursery rhymes! See how children learn the rhythm in English since they are tiny!
Did you know any of these songs?