Art in Uzbekistan Plan

health field,
" as distinct from medical care, emerged from the 
Lalonde report from Canada. The report identified three interdependent fields as 
key determinants of an individual's health. These are:
[16]
 

Biomedical: all aspects of health, physical and mental, developed within the human 
body as influenced by genetic make-up. 

Environmental: all matters related to health external to the human body and over 
which the individual has little or no control; 

Lifestyle: the aggregation of personal decisions (i.e., over which the individual has 
control) that can be said to contribute to, or cause, illness or death; 
The maintenance and promotion of health is achieved through different 
combination of physical, mental, and social well-being—a combination sometimes 
referred to as the 
"health triangle."
[20][21]
 The WHO's 1986 
Ottawa Charter for 
Health Promotion
 further stated that health is not just a state, but also "a resource 
for everyday life, not the objective of living. Health is a positive concept 
emphasizing social and personal resources, as well as physical capacities."
[22]
 
Focusing more on lifestyle issues and their relationships with functional health, 
data from the Alameda County Study suggested that people can improve their 
health via exercise, enough sleep, spending time in nature, maintaining a 
healthy body weight, limiting alcohol use, and avoiding smoking.
[23]
 Health 
and illness can co-exist, as even people with multiple chronic diseases or terminal 
illnesses can consider themselves healthy.
[24]
 

---

Modal verbs 
Plan: 
1.
English modal verbs 
The English modal verbs are a subset of the English auxiliary verbs used mostly to 
express modality (properties such as possibility, obligation, etc.).
[1]
 They can be 
distinguished 
from 
other 
verbs 
by 
their defectiveness (they 
do 
not 
have participle or infinitive forms) and by their neutralization
[2]
 (that they do not 
take the ending 
-(e)s
in the third-person singular). 
The 
principal English 
modal 
verbs are 
can
, 
could
, 
may
, 
might
, 
shall
, 
should
, 
will
, 
would
, and 
must
. Certain other 
verbs are sometimes classed as modals; these include 
ought
, 
had better
, and (in 
certain uses) 
dare
and 
need
. Verbs which share only some of the characteristics of 
the principal modals are sometimes called "quasi-modals", "semi-modals", or 
"pseudo-modals" 
The verbs customarily classed as modals in English have the following properties: 

They do not inflect (in the modern language) except insofar as some of them 
come in present–past (present–preterite) pairs. They do not add the ending 
-
(e)s
in the third-person singular (the present-tense modals therefore follow 
the preterite-present paradigm).
[a]
 

They are defective: they are not used as infinitives or participles (except 
occasionally in non-standard English; see § Double modals below), nor 
as imperatives, nor (in the standard way) as subjunctives. 

They function as auxiliary verbs: they modify the modality of another verb, 
which they govern. This verb generally appears as a bare infinitive, although in 
some definitions, a modal verb can also govern the 
to
-infinitive (as in the case 
of 
ought
). 

They have the syntactic properties associated with auxiliary verbs in English, 
principally that they can undergo subject–auxiliary inversion (in questions, for 
example) and can be negated by the appending of 
not
after the verb. 
1.
^ However, they used to be conjugated by person and number, but with the 
preterite endings. Thus, they often have deviating second-person singular 
forms, which still may be heard in quotes from the Bible (as 
in 
thou shalt not steal
) or in poetry. 
The following verbs have all of the above properties, and can be classed as the 
principal modal verbs of English. They are listed here in present–preterite pairs 
where applicable: 

can
and 
could

---


may
and 
might

shall
and 
should

will
and 
would

must
(no preterite; see etymology below) 
Note that the preterite forms are not necessarily used to refer to past time, and in 
some cases, they are near-synonyms to the present forms. Note that most of these 
so-called preterite forms are most often used in the subjunctive mood in the present 
tense. The auxiliary verbs 
may
and 
let
are also used often in the subjunctive mood. 
Famous examples of these are "May The Force be with you." and "Let God bless 
you with good." These are both sentences that express some uncertainty; hence 
they are subjunctive sentences. 
The verbs listed below mostly share the above features but with certain differences. 
They are sometimes, but not always, categorized as modal verbs.
[3]
 They may also 
be called "semi-modals". 

The verb 
ought
differs from the principal modals only in that it governs a 
to
-
infinitive rather than a bare infinitive (compare 
he should go
with 
he 
ought to go
). 

The verbs 
dare
and 
need
can be used as modals, often in the negative (
Dare he 
fight?
; 
You dare not do that.
; 
You need not go.
), although they are more 
commonly found in constructions where they appear as ordinary inflected verbs 
(
He dares to fight
; 
You don't need to go
). There is also a dialect verb, nearly 
obsolete but sometimes heard in Appalachia and the Deep South of the United 
States: 
darest
, which means "dare not", as in "You darest do that." 

The verb 
had
in the expression 
had better
behaves like a modal verb, hence 
had 
better
(considered as a compound verb) is sometimes classed as a modal or 
semi-modal. 

The verb 
used
in the expression 
used to (do something)
can behave as a modal, 
but is more often used with 
do
-support than with auxiliary-verb syntax: 
Did she 
used to do it?
(or 
Did she use to do it?
) and 
She didn't used to do it
(or 
She 
didn't use to do it
)
[a]
 are more common than 
Used she to do it?
and 
She used not 
(usedn't) to do it
. 
Other English auxiliaries appear in a variety of different forms and are not 
regarded as modal verbs. These are: 

be
, used as an auxiliary in passive voice and continuous aspect constructions; it 
follows auxiliary-verb syntax even when used as a copula, and in auxiliary-like 
formations such as 
be going to
, 
is to
and 
be about to
; 

have
, used as an auxiliary in perfect aspect constructions, including the 
idiom 
have got (to)
; it is also used in 
have to
, which has modal meaning, but 
here (as when denoting possession) 
have
only rarely follows auxiliary-verb 
syntax (see also