I'm not really familiar with noun phrase so please I need you help.

1 A glass of water will restore my strength
2 I want a glass of water
3 They elected him the personal manager
4 The youths are leaders of tomorrow
5 you can have part of the money.

please I need your help for the noun phrases, functions and explanations of each.

I understand the definition but there were no function

Noun phrases are just that — a noun and/or a noun and all its modifiers.

They can do whatever nouns do in sentences. They can be subjects, direct objects, indirect objects, objects of prepositions …

A glass of water will restore my strength.
A glass — subject
water — obj of preposition "of"
my strength — direct object

Now you try the rest, and I'll check your work.

.I want a glass of water-

I- subject
water-obj of preposition "of"
a glass- direct object

.They elected him the personal manager
they- subject
elected-verb
him- direct object
personal manager-

.The youths are leaders of tomorrow
youths- subject
leaders- direct object
of tomorrow-obj of preposition "of"

.you can have part of the money.
you- subject
have- verb
part-obj of preposition "of"
money-direct object

i'm not sure of it though

Sure! I'd be happy to help you understand noun phrases and their functions in the sentences you provided.

1. Noun Phrase: "A glass of water"
- Function: Subject of the sentence
- Explanation: In this sentence, "A glass of water" is the subject that performs the action ("will restore").

2. Noun Phrase: "A glass of water"
- Function: Object of the verb "want"
- Explanation: In this sentence, "A glass of water" is the object of the verb "want".

3. Noun Phrase: "him the personal manager"
- Function: Direct object of the verb "elected"
- Explanation: In this sentence, "him the personal manager" is the direct object that receives the action of "elected".

4. Noun Phrase: "The youths"
- Function: Subject of the sentence
- Explanation: In this sentence, "The youths" is the subject that performs the action ("are leaders").

5. Noun Phrase: "part of the money"
- Function: Object of the verb "have"
- Explanation: In this sentence, "part of the money" is the object of the verb "have".

Remember, a noun phrase consists of a noun (a person, place, thing, or idea) plus any accompanying modifiers (such as articles, adjectives, or prepositional phrases).