ARTICLE WORKSHEET #3 
 
an_____ Amazonian tributary 
an_____ abandoned mill 
an_____ amateur boxer 
an_____ ambient noise 
an_____ epidemic 
an_____ emesis basin 
an_____ Eastern Diamondback Rattlesnake 
an_____ elbow 
an_____ Egyptian pyramid 
an_____ ibex 
an_____ ice storm 
an_____ inorganic compound 
an_____ insane asylum 
an_____ inflammatory disease 
an_____ oatmeal cream pie 
an_____ obedient pet 
an_____ older man 
an_____ ointment 
an_____ overachiever 
an_____ overabundance 
an_____ ozone hole 
a_____ United Arab Emirates scholar 
a_____ UEA delegate 
a_____ utopian society 
a_____ United States naval officer 
a_____ UNIX guru 
a_____ UTA bus driver 
a_____ UVU professor 
 
EXERCISE 
Add A, AN, or THE when appropriate. 
 
__The___ atmosphere of _the____ earth is composed of air.  _The____ weight of _the____ air relates to 
our weather.  Low pressure areas have less atmospheric mass while high pressure systems have more 
atmospheric mass.  In other words, when you see _a____ barometer, _an____ instrument for measuring 
_the____ atmospheric pressure of _an____  area, and you have __a___ high-pressure reading, then 
__the___ weather is generally good.  However, if _the____ barometer has __a___ low pressure reading, 
then __a___ storm or some other form of severe weather may be approaching.  On __a___  barometer, 
_a____ high pressure reading is generally 30.5 to 31+ while ___a__ low pressure reading is generally 
anything below 29.9.  Strong storms such as hurricanes may have __a___ extremely low reading, 
particularly inside of __the___ eye of _the____ hurricane, where extremely low barometric pressure 
readings may be possible.