Notes On Punctuation Marks - CBSE Class 7 English Grammar
Colon is used to mark a major division in a sentence, to indicate that what follows is an elaboration, summation, implication, etc., of what precedes it.  Colon is used: 1.At he end of a sentence when a list of items follows, as follows:       The class will expose you to the following topics:  physics, biology, and  chemistry. 2.Between two main clauses when the second explains or illustrates the first:        Both of my sisters live overseas: Pooja lives in America, and Preeti in London. QUOTATION MARK Quotation marks are also called "quotes" or "inverted commas". It is used: 1. Around the title or name of a book, film, ship etc:                   'Titanic' is a 1997 movie directed by James Cameron about the sinking of the ship 'Titanic'. 2. Around a piece of text that we are quoting or citing, usually from another source:                  In The Cambridge Encyclopedia of The English Language, David Crystal argues that                              punctuation "plays a critical role in the modern writing system". 3. Use quotation marks around dialogue or direct speech:              Mary turned to him and said: "Do you like to play football?" 4. Use quotation marks around a word or phrase that we see as slang or jargon:             The police were called to a "disturbance" - which in reality was a pretty big fight. 5. Around a word or phrase that we want to make "special" in some way:              There will be a “Magic show” after the short break.     APOSTROPHE Apostrophe is used: 1. In possessive forms:          My friend's sister. 2. In contracted forms (the apostrophe shows that letters have been left out):          He has  → he’s       I would (or I had) → I'd        They have → they've 3.The first two figures of a year are left out:         1966 → '66 4. To show the plural of letters and numbers:         You should dot your i's.         Do you like music from the 1940's?

#### Summary

Colon is used to mark a major division in a sentence, to indicate that what follows is an elaboration, summation, implication, etc., of what precedes it.  Colon is used: 1.At he end of a sentence when a list of items follows, as follows:       The class will expose you to the following topics:  physics, biology, and  chemistry. 2.Between two main clauses when the second explains or illustrates the first:        Both of my sisters live overseas: Pooja lives in America, and Preeti in London. QUOTATION MARK Quotation marks are also called "quotes" or "inverted commas". It is used: 1. Around the title or name of a book, film, ship etc:                   'Titanic' is a 1997 movie directed by James Cameron about the sinking of the ship 'Titanic'. 2. Around a piece of text that we are quoting or citing, usually from another source:                  In The Cambridge Encyclopedia of The English Language, David Crystal argues that                              punctuation "plays a critical role in the modern writing system". 3. Use quotation marks around dialogue or direct speech:              Mary turned to him and said: "Do you like to play football?" 4. Use quotation marks around a word or phrase that we see as slang or jargon:             The police were called to a "disturbance" - which in reality was a pretty big fight. 5. Around a word or phrase that we want to make "special" in some way:              There will be a “Magic show” after the short break.     APOSTROPHE Apostrophe is used: 1. In possessive forms:          My friend's sister. 2. In contracted forms (the apostrophe shows that letters have been left out):          He has  → he’s       I would (or I had) → I'd        They have → they've 3.The first two figures of a year are left out:         1966 → '66 4. To show the plural of letters and numbers:         You should dot your i's.         Do you like music from the 1940's?
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