The sentence components are explained in a simple and clear way, without the use of technical terms.

It is generally used as a subject, an object, and a complement.

Proper noun. If it contains a noun phrase.

The definite article must be used. Such as: the greatest wall.

If the surname is in the plural, it indicates that the surname is a family (plural). For example: The Greens.

A name that denotes some person, a certain class of things, a certain substance, or an abstract concept. For example: teacher, tea, reform.

Nouns can be divided into countable nouns and countable nounsUncountable nouns(uncountable nouns)：

1.Uncountable nouns

Uncountable nouns are those that cannot be counted in numbers, and cannot be divided into individual concepts, states, qualities, feelings, or material materials; It generally does not have a plural form, only a singular form, and it cannot be preceded by an indefinite article.

a / an。Abstract nouns, material nouns, and proper nouns are generally uncountable nouns. Such as milk, bread, coffee, etc.

2., countable nouns.

A countable noun is a person or thing that can be counted in numbers and can be divided into individuals, so it has a plural form. Such as cup (cup), cat (cat), etc.

Subject, object, definite, adverbial.

In English, sentences are made up of components, and there are 8 types in total, namely"Subject, predicate, object, definite, adverbial, predicate, complement, coposition"There is also a less commonly used ingredient called an independent ingredient. Among them, the subject and predicate are the main components, and the predicate, object, definite, adverbial, complementary, homonymous and independent components are the secondary components.

i'm roasting a chicken in the oven for

dinner tonight.I'm roasting a chicken in the oven for dinner tonight.

Subject-verb-object of the sentence: i roast chicken place adverbial: in the oven

Purpose adverbial: for dinner

Time Motto: Tonight

The subject humans, across the globe, is a (post) definite that modifies the previous subject, humans. should unite is a predicate, in their efforts is an adverbial, and to fight the virus is a postposition of efforts.