These are mentor sentences that come from each story of the week in Texas Harcourt Unit 2, 2011 edition.
Stories in Unit 2 include:
Animals Building Homes by Wendy Perkins
The Ugly Vegetables by Grace Lin
Super Storms by Seymour Simon
How Chipmunk Got His Stripes by Joseph and James Bruchac
Jellies: The Life of Jellyfish by Twig C. George