Saturday, 28 March 2015

PRONOUNS

Pronouns replace nouns. A different pronoun is required depending on two elements: the noun being replaced and the function that noun has in the sentence. In English, pronouns only take the gender of the noun they replace in the 3rd person singular form. The 2nd person plural pronouns are identical to the 2nd person singular pronouns except for the reflexive pronoun.
 Subject PronounObject PronounPossessive Adjective (Determiner)Possessive PronounReflexive or Intensive Pronoun
1st person singularImemyminemyself
2nd person singularyouyouyouryoursyourself
3rd person singular, malehehimhishishimself
3rd person singular, femalesheherherhersherself
3rd person singular, neutralititits itself
1st person pluralweusouroursourselves
2nd person pluralyouyouyouryoursyourselves
3rd person pluraltheythemtheirtheirsthemselves

SUBJECT PRONOUNS

Subject pronouns replace nouns that are the subject of their clause. In the 3rd person, subject pronouns are often used to avoid repetition of the subject's name.
EXAMPLES
  • I am 16.
  • You seem lost.
  • Jim is angry, and he wants Sally to apologize.
  • This table is old. It needs to be repainted.
  • We aren't coming.
  • They don't like pancakes.

OBJECT PRONOUNS

Object pronouns are used to replace nouns that are the direct or indirect object of a clause.
EXAMPLES
  • Give the book to me.
  • The teacher wants to talk to you.
  • Jake is hurt because Bill hit him.
  • Rachid recieved a letter from her last week.
  • Mark can't find it.
  • Don't be angry with us.
  • Tell them to hurry up!

POSSESSIVE ADJECTIVES (DETERMINERS)

Possessive adjectives are not pronouns, but rather determiners. It is useful to learn them at the same time as pronouns, however, because they are similar in form to the possessive pronouns. Possessive adjectives function as adjectives, so they appear before the noun they modify. They do not replace a noun as pronouns do.
EXAMPLES
  • Did mother find my shoes?
  • Mrs. Baker wants to see your homework.
  • Can Jake bring over his baseball cards?
  • Samantha will fix her bike tomorrow.
  • The cat broke its leg.
  • This is our house.
  • Where is their school?

POSSESSIVE PRONOUNS

Possessive pronouns replace possessive nouns as either the subject or the object of a clause. Because the noun being replaced doesn't appear in the sentence, it must be clear from the context.
EXAMPLES
  • This bag is mine.
  • Yours is not blue.
  • That bag looks like his.
  • These shoes are not hers.
  • That car is ours.
  • Theirs is parked in the garage.

REFLEXIVE & INTENSIVE PRONOUNS

Reflexive and intensive pronouns are the same set of words but they have different functions in a sentence.
Reflexive pronouns refer back to the subject of the clause because the subject of the action is also the direct or indirect object. Only certain types of verbs can be reflexive. You cannot remove a reflexive pronoun from a sentence because the remaining sentence would be grammatically incorrect.
EXAMPLES
  • I told myself to calm down.
  • You cut yourself on this nail?
  • He hurt himself on the stairs.
  • She found herself in a dangerous part of town.
  • The cat threw itself under my car!
  • We blame ourselves for the fire.
  • The children can take care of themselves.
Intensive pronouns emphasize the subject of a clause. They are not the object of the action. The intensive pronoun can always be removed from a sentence without changing the meaning significantly, although the emphasis on the subject will be removed. Intensive pronouns can be placed immediately after the subject of the clause, or at the end of the clause.
EXAMPLES
  • I made these cookies myself.
  • You yourself asked Jake to come.
  • The Pope himself pardoned Mr. Brown.
  • My teacher didn't know the answer herself.
  • The test itself wasn't scary, but my teacher certainly is.
  • We would like to finish the renovation before Christmas ourselves.
  • They themselves told me the lost shoe wasn't a problem.

COUNTABLE AND UNCOUNTABLE NOUNS

It's important to distinguish between countable and uncountable nouns in English because their usage is different in regards to both determiners and verbs.

COUNTABLE NOUNS

Countable nouns are for things we can count using numbers. They have a singular and a plural form. The singular form can use the determiner "a" or "an". If you want to ask about the quantity of a countable noun, you ask "How many?" combined with the plural countable noun.
SingularPlural
one dogtwo dogs
one horsetwo horses
one mantwo men
one ideatwo ideas
one shoptwo shops
EXAMPLES
  • She has three dogs.
  • I own a house.
  • I would like two books please.
  • How many friends do you have?

UNCOUNTABLE NOUNS

Uncountable nouns are for the things that we cannot count with numbers. They may be the names for abstract ideas or qualities or for physical objects that are too small or too amorphous to be counted (liquids, powders, gases, etc.). Uncountable nouns are used with a singular verb. They usually do not have a plural form.
EXAMPLES
  • tea
  • sugar
  • water
  • air
  • rice
  • knowledge
  • beauty
  • anger
  • fear
  • love
  • money
  • research
  • safety
  • evidence
We cannot use a/an with these nouns. To express a quantity of an uncountable noun, use a word or expression like some, a lot of, much, a bit of, a great deal of , or else use an exact measurement like a cup of, a bag of, 1kg of, 1L of, a handful of, a pinch of, an hour of, a day of. If you want to ask about the quantity of an uncountable noun, you ask "How much?"
EXAMPLES
  • There has been a lot of research into the causes of this disease.
  • He gave me a great deal of advice before my interview.
  • Can you give me some information about uncountable nouns?
  • He did not have much sugar left.
  • Measure 1 cup of water, 300g of flour, and 1 teaspoon of salt.
  • How much rice do you want?

TRICKY SPOTS

Some nouns are countable in other languages but uncountable in English. They must follow the rules for uncountable nouns. The most common ones are:
accommodation, advice, baggage, behavior, bread, furniture, information, luggage, news, progress, traffic, travel, trouble, weather, work
EXAMPLES
  • I would like to give you some advice.
  • How much bread should I bring?
  • I didn't make much progress today.
  • This looks like a lot of trouble to me.
  • We did an hour of work yesterday.
Be careful with the noun hair which is normally uncountable in English, so it is not used in the plural. It can be countable only when referring to individual hairs.
EXAMPLES
  • She has long blond hair.
  • The child's hair was curly.
  • I washed my hair yesterday.
  • My father is getting a few grey hairs now. (refers to individual hairs)
  • I found a hair in my soup! (refers to a single strand of hair)

NOUNS


  

What is a noun?

noun is a word or set of words for a person, place, thing, or idea.
 A noun of more than one word (tennis court, gas station) is called a compound noun.

 Nouns in English

Nouns answer the questions "What is it?" and "Who is it?" They give names to things, people, and places.
EXAMPLES
  • dog
  • bicycle
  • Mary
  • girl
  • beauty
  • France
  • world



In general there is no distinction between masculine, feminine in English nouns. However, gender is sometimes shown by different forms or different words when referring to people or animals.



EXAMPLES
MasculineFeminineGender neutral
manwomanperson
fathermotherparent
boygirlchild
uncleaunt 
husbandwifespouse
actoractress 
princeprincess 
waiterwaitressserver
roosterhenchicken
stallionmarehorse




Many nouns that refer to people's roles and jobs can be used for either a masculine or a feminine subject, like for example cousin, teenager, teacher, doctor, student, friend, colleague
EXAMPLES
  • Mary is my friend. She is a doctor.
  • Peter is my cousin. He is a doctor.
  • Arthur is my friend. He is a student.
  • Jane is my cousin. She is a student.
It is possible to make the distinction for these neutral words by adding the words male or female.
EXAMPLES
  • Sam is a female doctor.
  • No, he is not my boyfriend, he is just a male friend.
  • I have three female cousins and two male cousins.
Infrequently, nouns describing things without a gender are referred to with a gendered pronoun to show familiarity. It is also correct to use the gender-neutral pronoun (it).
EXAMPLES
  • I love my car. She (the car) is my greatest passion.
  • France is popular with her (France's) neighbours at the moment.
  • I travelled from England to New York on the Queen Elizabeth; she (the Queen Elizabeth) is a great ship.

THE PLURAL OF NOUNS

REGULAR NOUNS

Most nouns form the plural by adding -s.
EXAMPLES
SingularPlural
boatboats
househouses
catcats
riverrivers


A noun ending in s, x, z, ch, sh makes the plural by adding-es.
EXAMPLES
SingularPlural
busbuses
wishwishes
pitchpitches
boxboxes

A noun ending in a consonant and then y makes the plural by dropping the y and adding-ies.
EXAMPLES
SingularPlural
pennypennies
spyspies
babybabies
citycities
daisydaisies






IRREGULAR NOUNS

There are some irregular formations for noun plurals. Some of the most common ones are listed below.
EXAMPLES
SingularPlural
womanwomen
manmen
childchildren
toothteeth
footfeet
personpeople
leafleaves
mousemice
goosegeese
halfhalves
knifeknives
wifewives
lifelives
elfelves
loafloaves
potatopotatoes
tomatotomatoes
cactuscacti
focusfoci
fungusfungi
nucleusnuclei
syllabussyllabi/syllabuses
analysisanalyses
diagnosisdiagnoses
oasisoases
thesistheses
crisiscrises
phenomenonphenomena
criterioncriteria
datumdata


Some nouns have the same form in the singular and the plural.
EXAMPLES
SingularPlural
sheepsheep
fishfish
deerdeer
speciesspecies
aircraftaircraft



IRREGULAR VERB/NOUN AGREEMENT

Some nouns have a plural form but take a singular verb.
Plural nouns used with a singular verbSentence
newsThe news is at 6.30 p.m.
athleticsAthletics is good for young people.
linguisticsLinguistics is the study of language.
dartsDarts is a popular game in England.
billiardsBilliards is played all over the world.



Some nouns have a fixed plural form and take a plural verb. They are not used in the singular, or they have a different meaning in the singular. Nouns like this include: trousers, jeans, glasses, savings, thanks, steps, stairs, customs, congratulations, tropics, wages, spectacles, outskirts, goods, wits
Plural noun with plural verbSentence
trousersMy trousers are too tight.
jeansHer jeans are black.
glassesThose glasses are his.













THE HUMAN EYE

The eye


The eye is a sense organ that responds to light.
At front is conjunctiva behind which is cornea. Pupil is the lens. Suspensory ligaments attach the lens to the ciliary muscle. At the back of the eye is retina, fovea and optic nerve.


Structure
Function
Cornea
Refracts light - bends it as it enters the eye
Iris
Controls how much light enters the pupil
Lens
Focuses light onto the retina
Retina
Contains the light receptors
Optic nerve
Carries impulses between the eye and the brain





The retina

Light passes through the eyeball to the retina.

There are two main types of light receptors - rods and cones. Rods are more sensitive to light than cones. There are three different types of cone cells which produce colour vision.




Rods
Cones
Number in the retina
120 million
7 million
Where concentrated
Outer edges of the retina
The fovea
Work best in
Dim light
Bright light







The pupil reflex



The amount of light entering the eye is controlled by a reflex action

The size of the pupil changes in response to bright or dim light. This is controlled by the muscles of the iris.



When there is little light the pupil of the eye expands to let in more light



1.    How an eye reacts to dim light












When there is a lot of light the pupil of the eye contracts to let in less light



1.    How an eye reacts to bright light





Accommodation


The ability of the lens to change its shape to focus near and distant objects is called accommodation.



Position of object
Ciliary muscles
Suspensory ligaments
Muscle tension on lens
Lens shape
Near
Contract
Slackened
Low
Fat
Distant
Relax
Stretched
High
Thin