The opening of an essay is important. It should capture the reader's attention and avoid being bland or dull. The reader should be interested and keen to read on. If the beginning is flat, they will not want to do so.
Some examples of different styles that could be used in an introduction are:
An example of a provocative introduction is -
It is difficult to see how anyone can approve of fox hunting.
An example of a balanced introduction is -
Fox hunting is a subject about which people hold strongly contrasting views.
An example of a quotation introduction is -
Oscar Wilde once described fox hunting as 'The unspeakable in pursuit of the uneatable.
An example of a illustrative introduction is -
On a glorious autumn morning a terrified, exhausted animal is savaged to death by a pack of baying dogs while a group of expensively dressed humans encourage the dogs in their bloody work.
An example of an anecdotal introduction is -
I have always detested fox hunting since I was almost physically sick while watching a television film of the kill at the end of a hunt.