This type of sentence puts first things first; it lets the reader know what it is mainly about before the end of the sentence.

The most valuable information appears at the beginning of the sentence and the other information follows.

Wolves are important in a habitat because they control the numbers of elk, which in turn allows trees to mature so they can offer shelter to birds and insects.

Lewis and Clark finally made it to the Pacific coast, after bitter winters and a close call with the Sioux Indians.

The teacher considered him a good student, steady if not inspired, willing if not eager, responsive to instruction and conscientious about his work.

Bells rang, filling the air with their clangor, startling pigeons into flight from every belfry, bringing people into the streets to hear the news.

A sentence with the main point (independent clause) at the ________ of it, often after a couple side points leading up to it (subordinating clauses).

In this type of sentence, the reader does not know what it is mainly about until he finishes reading it.

This sentence structure often brings a dramatic tension and suspense to the end of the sentence, stressing its importance.

By the smell of barbecuing and the fireworks in the sky, I knew it was Independence Day.

“To believe your own thoughts, to believe that what is true for you in your private heart is true for all men, that is genius.” --Ralph Waldo Emerson

The tough one, the sullen kid who scoffed at any show of sentiment, John gave his mother flowers.

Love, as everyone knows except those who happen to be afflicted with it, is blind.

She decided to study English though she was interested in music.

Although she was interested in music, she finally decided to study English.

The world won’t end even if we fail again and again.

Before Tom returned, Bill had cleaned the room.