Read “Train of Thought” in your reading packet. Then answer the question below. Based on the second paragraph (lines 14 – 34), why does the author feel the phrase “train of thought” is no longer relevant?
a. People do not know much about trains anymore.
b. Scientists have developed new theories about how we think.
c. New technology has made the phrase seem outdated.
d. People rarely use the phrase accurately.

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were a wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.