One of the reasons non-native speakers have problems understanding and pronouncing English is because of linking sound. Linking is very important in English. If you recognize and use linking, you will understand other people more easily and other people will also understand you more easily.
Linking occurs when a word ends in a vowel and the following word starts with a vowel. When one word ends with a vowel sound and the next word begins with a vowel sound, we link the words with a sort of (small and quick) W or Y sound.
If our lips are round at the end of the first word, we insert a W (ow) sound. Try to pronounce the sentences shown in the picture as natural as possible. Pay attention to the arrow marks which link one word to another.
“I have noWidea why youWopen the window. It’s soWwindy.”
Watch and listen to Eva Easton. She will teach you how to link the words end with W and Y sound to the vowel sound.
You can also learn how to connect and link the words with Elemental English